Optical system and camera module

Abstract

An optical system disclosed in an embodiment of the present invention comprises a first prism, a second prism and a third prism that are aligned from an object side toward an image sensor, wherein the first prism is adjacent to the object and reflects light once in the horizontal plane direction, the second prism is disposed between the exit side of the first prism and the incident side of the third prism and reflects light multiple times in the vertical plane direction perpendicular to the horizontal plane direction, and the third prism is adjacent to the image sensor and reflects light once or twice in the horizontal plane direction.

Description

Optical system and camera module

[0001] The present invention relates to an optical system and a camera module. Preferably, the invention relates to a slim optical system and a camera module with improved performance.

[0002] Camera modules perform the function of capturing objects and storing them as images or videos, and are installed in various applications. In particular, camera modules are manufactured in an ultra-small size and are applied to portable devices such as smartphones, smart glasses, tablet PCs, and laptops, as well as drones and vehicles, providing various functions. For example, the optical system of a camera module may include an imaging lens that forms an image and an image sensor that converts the formed image into an electrical signal. At this time, the camera module can perform an autofocus (AF) function that automatically adjusts the distance between the image sensor and the imaging lens to align the focal length of the lens, and can perform a zooming function that increases or decreases the magnification of a distant object through a zoom lens. In addition, the camera module adopts image stabilization (IS) technology to compensate for or prevent shaking of the image caused by camera movement due to an unstable fixture or the user's movements. The most crucial element for these camera modules to capture images is the imaging lens, which forms the image. Recently, interest in high resolution has been growing, and research is being conducted on optical systems that incorporate multiple lenses and prisms to achieve this. For example, research is underway on utilizing multiple imaging lenses with positive or negative refractive power to achieve high resolution.

[0003] However, when multiple lenses and prisms are included, there is a problem that it is difficult to derive excellent optical characteristics and aberration characteristics. In addition, when multiple lenses and prisms are included, there is a problem that the overall thickness of the module increases. In addition, the size of the image sensor is increasing to implement high resolution and high image quality. However, when the size of the image sensor increases, the overall length of the optical system (TTL: Total Track Length) also increases, and as a result, there is a problem that the thickness of the camera module including the optical system also increases. Therefore, a new optical system that can solve the above-mentioned problems is required.

[0004] The present invention provides an optical system having improved optical characteristics. The present invention provides a slim optical system. The present invention provides an optical system having a prism having multiple transmission / total reflection surfaces and multiple reflection surfaces, and a lens on at least one of the object side and the sensor side of the prism, and a camera module having the same. The present invention provides an optical system having at least one prism having a free-form surface, and a camera module having the same.

[0005] An optical system according to an embodiment of the invention comprises a prism having a portion adjacent to an object and arranged in a long length in a second direction; at least one first lens arranged between the object and the prism; and at least one second lens arranged between an image sensor and the prism, wherein at least one of an incident side surface and an exit side surface of the first lens and the second lens has a free-form surface, a thickness of the optical system is T, an effective diagonal length of the image sensor is D, and a condition: T / D < 0.55 can be satisfied.

[0006] An optical system according to an embodiment includes a first prism, a second prism, and a third prism aligned from an object side toward an image sensor, wherein the first prism is adjacent to the object and reflects once in a horizontal plane direction, the second prism is disposed between an exit side of the first prism and an incidence side of the third prism and reflects multiple times in an up-and-down plane direction perpendicular to the horizontal plane direction, and the third prism is adjacent to the image sensor and can reflect once or twice in the horizontal plane direction.

[0007] According to an embodiment of the invention, each of the second prism and the third prism may have at least one of the optical surfaces disposed on the optical path as a free-form surface with a non-rotational symmetry. The third prism may have a full free-form surface (FFS) in which at least one of the lens surfaces disposed on the optical path is non-rotationally symmetrical and in which no axis of axes passing through the center of the lens surface is axially symmetrical within the lens surface. The first prism may have at least one of the optical surfaces disposed on the optical path as a free-form surface with a non-rotational symmetry. The first prism may have at least one of the optical surfaces disposed on the optical path as a full free-form surface (FFS).

[0008] An optical system according to an embodiment of the invention includes a first prism, a second prism, and a third prism aligned from an object side toward an image sensor, wherein the first prism is adjacent to the object and reflects once in an up-and-down plane direction, the second prism is disposed between an exit side of the first prism and an incident side of the third prism and reflects multiple times in a horizontal plane direction perpendicular to the up-and-down plane direction, and the third prism is adjacent to the image sensor and can reflect once or twice in the up-and-down plane direction.

[0009] According to an embodiment of the invention, each of the second prism and the third prism may have at least one of the optical surfaces disposed on the optical path as a free-form surface with a non-rotational symmetry. The third prism may have a full free-form surface (FFS) in which at least one of the lens surfaces disposed on the optical path is non-rotationally symmetrical and in which no axis of axes passing through the center of the lens surface is axially symmetrical within the lens surface. The first prism may have at least one of the optical surfaces disposed on the optical path as a free-form surface with a non-rotational symmetry. The first prism may have at least one of the optical surfaces disposed on the optical path as a full free-form surface (FFS).

[0010] According to an embodiment of the invention, at least one lens having a free-form surface of a non-rotationally symmetric shape may be included between the first prism and the second prism or between the second prism and the third prism. The at least one lens may have a full free-form surface.

[0011] According to an embodiment of the invention, the third prism may be a prism having a total reflection surface and reflecting twice. At least one lens disposed between the second prism and the third prism may have a free-form surface of a non-rotationally symmetric shape. The invention may include an aperture disposed closer to the object side than the second prism. According to an embodiment of the invention, the aperture may be disposed closer to the object side than the exit surface of the first prism. According to an embodiment of the invention, a thickness of the optical system may be T, an effective diagonal length of the image sensor may be D, and a conditional expression: T / D < 0.53 may be satisfied.

[0012] An optical system according to an embodiment comprises a prism arranged between an object and an image sensor and having a long length in a second direction; at least one first lens arranged between the object and the prism, and at least one second lens arranged between the image sensor and the prism, wherein at least one of an incident side surface and an exit side surface of the first lens and the second lens may have a free-form surface.

[0013] According to an embodiment of the invention, the first lens may have a first edge thickness in a direction from the exit side of the prism toward the incident side and a second edge thickness in a direction from the incident side of the prism toward the exit side based on the center of the first lens may be different from each other. The first edge thickness may be L1_ET1, the second edge thickness may be L1_ET2, and the condition: L1_ET1 / L1_ET2 > 1.5 may be satisfied. The prism may have an intermediate imaging plane on an optical path. Based on the direction of the optical path from the object to the image sensor within the prism, in a first reflective plane arranged on the exit side of the intermediate imaging plane, an incident angle between a tangent of the first reflective plane and a reference ray incident on the reflective plane may be R1, and the condition: 0 < R1 < 45 degrees may be satisfied. The effective area of ​​the first reflective plane may be smaller than the effective areas of the incident plane and the exit plane of the prism.

[0014] According to an embodiment of the invention, the prism may have a third direction exit pupil orthogonal to the first and second directions arranged closer to the image sensor than the second direction exit pupil. The incident surface of the prism may have a concave shape with respect to the cross-section in the first and second directions on the incident side.

[0015] The incident-side reflective surface and the output-side reflective surface of the above prism may have free-form surfaces. At least five of the optical surfaces of the above prism may have power.

[0016] According to an embodiment of the invention, the incident side surface and the output side surface of the optical system may have a transmission / total reflection surface. The invention may include an incident side prism arranged on the object side of the first lens and changing the optical path in a range of 75 degrees to 105 degrees. The invention may include an output side prism arranged on the output side of the second lens and changing the optical path in a range of 75 degrees to 105 degrees. A plurality of the first lenses may be arranged in a first direction. A plurality of the second lenses may be arranged in the first direction.

[0017] The optical system and camera module according to the present invention can have improved optical characteristics. Furthermore, the optical system and camera module can be slimmed down and offer high resolution. This can reduce the size of a standard wide-angle camera module. Furthermore, it can prevent an increase in the thickness of a camera module using an image sensor larger than 1 inch, and prevent deterioration in optical performance.

[0018] An optical system and a camera module according to an embodiment of the invention may have improved MTF (Modulation Transfer Function) characteristics, aberration control characteristics, resolution characteristics, etc. in a set field of view range, and may have good optical performance in the periphery of the field of view. The optical system according to an embodiment of the invention may have improved optical characteristics and a small TTL (Total Track Length), so that the optical system and the camera module including the same may be provided in a slim and compact structure.

[0019] FIG. 1 is a drawing of an optical system and a camera module according to a first embodiment of the invention unfolded in a plane shape in a first direction.

[0020] Fig. 2 is a drawing of the optical system and camera module of Fig. 1 unfolded in a plane shape in the second direction.

[0021] Figure 3 is a perspective view showing an optical system and a camera module according to a first embodiment of the invention.

[0022] FIG. 4 is an example of a side cross-sectional view of the optical system and camera module of FIG. 3 in the second direction.

[0023]

[0024] FIG. 5 is an example of a side cross-sectional view of the optical system and camera module of FIG. 3 in the first direction.

[0025]

[0026] FIG. 6a is a drawing for explaining the optical path of the optical system and camera module of FIG. 3.

[0027] FIG. 6b is a perspective view showing an optical system and a camera module according to a first embodiment of the invention.

[0028] Figures 7 (a) and (b) are drawings showing the second and third direction exit pupils on the optical path of the optical system and camera module of Figure 3.

[0029] (a)(b) of FIG. 8a are drawings explaining the first prism and the first lens of FIG. 6a.

[0030] (a)(b) of FIG. 8b are drawings explaining the second prism and second lens of FIG. 6a.

[0031] (a)(b) of Fig. 8c are examples of the third prism of Fig. 6a and its side view.

[0032] Fig. 9 is a table showing lens data of the optical system of Fig. 6a.

[0033] FIG. 10a is a drawing showing the intermediate colony surface and the subsequent reflective surface within the second prism on the optical path of the optical system and camera module of FIG. 6b.

[0034] Fig. 11 is a drawing showing a spot diagram formed on the image sensor of the optical system and camera module of Fig. 6a.

[0035] Fig. 12 is an example of lens data by the optical system and camera module of Fig. 6, as a second embodiment of the invention.

[0036] Fig. 13 is a drawing showing a spot diagram formed on an image sensor of an optical system having the lens data of Fig. 12.

[0037] FIG. 14 is a drawing of an optical system and a camera module according to a third embodiment of the invention unfolded in a planar form in a first direction.

[0038] Fig. 15 is a drawing of the optical system and camera module of Fig. 14 unfolded in a plane shape in the second direction.

[0039] Fig. 16 is a perspective view showing an optical system and camera module according to a third embodiment of the invention.

[0040] FIG. 17 is an example of a side cross-sectional view of the optical system and camera module of FIG. 16 in the second direction.

[0041] FIG. 18 is an example of a side cross-sectional view of the optical system and camera module of FIG. 16 in the first direction.

[0042] Figures 19 (a) and (b) are drawings illustrating examples of the third lens and the third prism of Figure 16.

[0043] Fig. 20 is an example of lens data of the optical system and camera module of Fig. 16.

[0044] Fig. 21 is a drawing showing a spot diagram formed on the image sensor of the optical system and camera module of Fig. 16.

[0045] FIG. 22 is a drawing of an optical system and a camera module according to a fourth embodiment of the invention, unfolded in a planar form in the first direction.

[0046] Figure 23 is a drawing of the optical system and camera module of Figure 22 unfolded in a plane shape in the second direction.

[0047] Fig. 24 is a perspective view showing an optical system and camera module according to a fourth embodiment of the invention.

[0048] FIG. 25 is an example of a side cross-sectional view of the optical system and camera module of FIG. 24 in the second direction.

[0049] FIG. 26 is an example of a side cross-sectional view of the optical system and camera module of FIG. 24 in the first direction.

[0050] Figures 27 (a)-(d) are drawings illustrating examples of the first-1 lens, the first-2 lens, the second lens, and the third prism of Figure 25.

[0051] Fig. 28 is an example of lens data of the optical system and camera module of Fig. 24.

[0052] Fig. 29 is a drawing showing a spot diagram formed on the image sensor of the optical system and camera module of Fig. 24.

[0053] Fig. 30 is a fifth embodiment of the invention, and is a drawing showing the angle of incidence of a reference ray directed from the reflective surface in the second prism of Fig. 25 toward the center of the image with respect to the reflective surface.

[0054] Fig. 31 is an example of lens data by an optical system and camera module according to the fifth embodiment of the invention.

[0055] Figure 32 is a drawing showing the angle of incidence of a reference ray directed toward the center of the image from the reflective surface within the second prism of Figure 30 to the reflective surface.

[0056] Fig. 33 is a drawing showing a spot diagram formed on the image sensor of the optical system of Fig. 30.

[0057] FIG. 34 is a drawing of an optical system and a camera module according to a sixth embodiment of the invention unfolded in a planar form in a first direction.

[0058] Figure 35 is a drawing of the optical system and camera module of Figure 34 unfolded in a plane shape in the second direction.

[0059] FIG. 36 is an example of a side cross-sectional view in the second direction of an optical system and camera module according to a sixth embodiment of the invention.

[0060] Fig. 37 is a drawing illustrating an example of the third prism of Fig. 35.

[0061] Fig. 38 is an example of lens data of the optical system and camera module of Fig. 35.

[0062] Fig. 39 is a drawing showing a spot diagram formed on the image sensor of the optical system and camera module of Fig. 35.

[0063] FIG. 40 is a drawing of an optical system and a camera module according to the seventh embodiment of the invention unfolded in a planar form in the first direction.

[0064] Figure 41 is a drawing of the optical system and camera module of Figure 40 unfolded in a plane shape in the second direction.

[0065] FIG. 42 is an example of a perspective view for explaining the optical path of an optical system and a camera module according to the seventh embodiment of the invention.

[0066] (a)(b) of Fig. 43 are perspective views of the first and second lenses of Fig. 42.

[0067] Fig. 44 is an example of the prism of Fig. 42.

[0068] (a)(b) of Fig. 45 are perspective views of the third and fourth lenses of Fig. 42.

[0069] Fig. 46 is an example of lens data of the optical system and camera module of Fig. 42.

[0070] Figure 47 is a drawing showing the intermediate colony surface and the subsequent reflective surface within the second prism on the optical path of the optical system and camera module of Figure 42.

[0071] Figure 48 is a drawing showing the angle of incidence of a reference ray directed from the reflective surface of the prism of Figure 47 to the center of the image.

[0072] Fig. 49 is a drawing showing a spot diagram formed on the image sensor of the optical system and camera module of Fig. 47.

[0073] Figure 50 is a table explaining the difference in coefficients of free-form surfaces (FFS) according to embodiments of the invention.

[0074] Figures 51 (a), (b), and (c) are drawings explaining the rotation direction (ASC, BSC, CSC) of the coordinate axes according to embodiments of the invention.

[0075] FIG. 52 is an example of a plan view of an image sensor according to an embodiment of the invention.

[0076] FIG. 53 is a drawing showing an example of a portable device having an optical system and a camera module according to an embodiment of the invention.

[0077] FIG. 54 is a drawing showing a portable terminal having an optical system and a camera module according to an embodiment of the invention.

[0078] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and one or more of the components between the embodiments can be selectively combined or substituted within the scope of the technical idea of ​​the present invention. In addition, terms (including technical and scientific terms) used in the embodiments of the present invention can be interpreted as having a meaning that can be generally understood by a person having ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, can be interpreted in consideration of the contextual meaning of the related technology.

[0079] The terminology used in the embodiments of the present invention is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular may also include the plural unless specifically stated in the phrase, and when it is described as “A and (or at least one (or more) of B, C)”, it may include one or more of all combinations that can be combined with A, B, and C. In addition, when describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and are not limited by the nature, order, or sequence of the components. In addition, when it is described that a component is “connected,” “coupled,” or “connected” to another component, it may include not only cases where the component is directly connected, coupled, or connected to the other component, but also cases where the component is “connected,” “coupled,” or “connected” due to another component between the component and the other component. Additionally, when it is described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when it is expressed as "above" or "below", it can include the meaning of a downward direction as well as an upward direction based on one component.

[0080] In the description of the invention, "object-side surface or incident-side surface" may mean a surface of a lens facing the object side based on the optical axis (OA) or optical path, and "sensor-side surface or emission-side surface" may mean a surface of a lens facing the imaging surface or image sensor based on the optical axis or optical path. A convex surface of the lens may mean a convex shape in the optical axis or paraxial region, and a concave surface of the lens may mean a concave shape in the optical axis or paraxial region. The radius of curvature described in the table for lens data may mean a value in the optical axis. Hereinafter, the concave or convex shape of the lens surface is described as the optical axis, and may also include the paraxial region. The refractive index of each lens may be based on the d-line (587.56 nm) wavelength. In the following specification, the first direction is the X-axis direction, the second direction is the Y-axis direction, the third direction is the Z-axis direction, and the first, second, and third directions can be orthogonal to each other. The XZ plane can be defined as the first plane or the horizontal plane, and the XY plane can be defined as the second plane or the vertical plane. In addition, when the long side direction of the image sensor is arranged in the second direction, the short side direction can be the first or third direction. As another example, when the long side direction of the image sensor is arranged in the first direction, the short side direction can be the second direction or the third direction.

[0081]

[0082] A first embodiment will be described with reference to FIGS. 1 to 11. Referring to FIGS. 1 and 2, an optical system (100) or a camera module according to the first embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) disposed between an exit side of the first prism (P1) and an incident side of the third prism (P3). The second prism (P2) has an incident side adjacent to the first prism (P1) and an incident side adjacent to the third prism (P3), and has a long length in a second direction (Y). The second direction (Y) is an axial direction passing between the exit side of the first prism (P1) and the incident side of the third prism (P3). The second direction (Y) is orthogonal to the first direction (X) and the third direction (Z).

[0083] At least one lens (L1-1) may be included between the incident sides of the first prism (P1) and the second prism (P2). At least one lens (L2-1) may be included between the incident sides of the second prism (P2) and the third prism (P3), or no lens may be present. That is, the incident-side lens (L1-1) arranged on the incident side of the second prism (P2) may be laminated one or more times, and the exit-side lens (L2-L1) arranged on the exit side of the second prism (P2) may be laminated one or more times. The optical axis direction passing through the center of the object-side lens (L1-1) may be the first optical axis direction, the optical axis direction passing through the center of the exit-side lens (L2-1) may be the second optical axis direction, and the first optical axis direction and the second optical axis direction may not be parallel to each other. As another example, the first optical axis direction and the second optical axis direction may be parallel to each other.

[0084] As shown in FIGS. 1 to 6b and (a) of FIG. 8, the first prism (P1) may have a polygonal prism shape, for example, a triangular prism shape. The angle of reflection of light by the reflective surface of the first prism (P1) may be changed to be 75 degrees or more, for example, in the range of 75 degrees to 105 degrees. The first prism (P1) may have a prism shape having at least three optical surfaces (S4, S5, S6) on the light path. The first prism (P1) may include third to sixth surfaces (S3-S6). The third surface (S3) is an aperture surface, the fourth surface (S4) is an incident surface, the fifth surface (S5) is a reflective surface, and the sixth surface (S6) is an exit surface. The first prism (P1) may have at least one reflective surface and reflect incident light. The fifth surface (S5) of the first prism (P1) can reflect in the direction of the first plane or the horizontal plane (XZ plane). The first prism (P1) can reflect once by the fifth surface (S5).

[0085] As shown in FIGS. 2 and 9, the first and second surfaces (S1, S2) located on the object side of the first prism (P1) are surfaces related to the object and will be ignored. The third surface (S3) is the surface of the aperture (Stop) and may be located closer to the object side than the second prism (P2). The size of the second prism (P2) can be reduced by the position of the aperture. That is, the effective length or effective diameter of the incident-side surface of the second prism (P2) can be reduced by the aperture. The aperture may be located closer to the object side than the sixth surface (S6) on the exit side of the first prism (P1). The aperture may be arranged around the object-side periphery of the incident-side fourth surface (S4) of the first prism (P1). The position of the aperture can satisfactorily correct aberrations occurring in the second prism (P2).

[0086] At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface having a non-rotationally symmetrical shape. The free-form surface has a free-form surface that is not rotationally symmetrical in both directions passing through the center of each lens surface. The resolution and optical performance of the optical system can be improved by this free-form surface. At least one of the free-form surfaces of the first prism (P1) may have a Full-FFS (Freeform surface) that is non-axially symmetrical among a plurality of axes passing through the center within the lens surface. Here, in the free-form surface, the coefficient of the Full-FFS is required to be 100 or more, and the coefficient of the Half-FFS is smaller than the coefficient of the Full-FFS and is required to be 70 or more.

[0087] In the top-down plan view of FIG. 2, the effective diameter or effective length from the third surface (S3) of the first prism (P1) to the upper surface of the image sensor (10) can be defined as the difference between the maximum and minimum values ​​in the Global Y direction of S1 as the height (H). In the top-down plan view of FIG. 2, the effective length or effective diameter from the third surface of the first prism (P1) to the Image plane can be defined as the difference between the maximum and minimum values ​​in the Global X direction of S1 as the width (W).

[0088]

[0089] The second prism (P2) has a length (H) longer in the second direction (Y) than the maximum width (W) in the first direction (X), and may include five or more optical surfaces (S9-S16) on the light path. The five or more optical surfaces (S9-S16) may control the path of light along the perimeter in the second direction (Y). The second prism (P2) includes at least five reflective surfaces, and one or two of the at least five reflective surfaces may be total reflective surfaces. As shown in FIGS. 1 to 6B and (a) of FIG. 8B, the optical surfaces of the second prism (P2) may include ninth to sixteenth surfaces (S9-S16). The ninth surface (S9) is an incident surface, the sixteenth surface (S16) is an emission surface, and the tenth to fifteenth surfaces (S10-S15) may be reflective surfaces or total reflection surfaces. For example, the eleventh surface (S11) and the fourteenth surface (S14) may be total reflection surfaces, and the twelfth surface (S12), the thirteenth surface (S13), and the fifteenth surfaces (S12, S13, S15) may be reflective surfaces.

[0090] The second prism (P2) may include a transmission / total reflection surface (TS1, TS2) with a critical angle condition on each of the incident side and the exit side. The transmission / total reflection surface (TS1, TS2) with a critical angle condition transmits light that travels along a path on the incident side or the exit side, and reflects light reflected by another reflective surface along a different path. The transmission / total reflection surface (TS1, TS2) with a critical angle condition of the second prism (P2) includes a first transmission / total reflection surface (TS1) on the incident side and a second transmission / total reflection surface (TS2) on the exit side. The first transmission / total reflection surface (TS1) includes a ninth surface (S9) that transmits light incident through the first lens (L1-1), and an eleventh surface (S11) that transmits light reflected by the reflection surface (S10) and transmits the ninth surface (S9). The second transmission / total reflection surface (TS2) includes a fourteenth surface (S14) that totally reflects light reflected by the thirteenth surface (S13), and a sixteenth surface (S16) that transmits light totally reflected by the fourteenth surface (S14) and then reflected by the fifteenth surface (S15). The first transmission / total reflection surface (TS1) on the incident side and the second transmission / total reflection surface (TS2) on the exit side of the second prism (P2) include transmission surfaces (S9, S16) and total reflection surfaces (S11, S14).

[0091] The second prism (P2) may have a prism shape that multiple reflects in the direction of the second plane or the vertical plane (XY plane). The ninth surface (S9) on the incident side of the second prism (P2) corresponds to the exit side surface of the first prism (P1), and the sixteenth surface (S16) on the exit side may correspond to the incident side surface of the third prism (P3). Specifically, the ninth surface (S9) may face the exit side (S8) of the first lens (L1-1), and the sixteenth surface (S16) may face the incident side (S17) of the second lens (L2-1). The second plane or the vertical plane (XY) direction is a direction orthogonal to the first plane or the horizontal plane (XZ plane) direction.

[0092] The incident-side transmission / total reflection surface, the multiple reflection surfaces, and the exit-side transmission / total reflection surface of the second prism (P2) have free-form surfaces of non-rotationally symmetrical shapes, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). The coefficient of the Half-FFS is smaller than the coefficient of the Full-FFS which has no axis of symmetry at all within the lens plane, and 70 or more are required. At least one, two, or all of the ninth surface (S9) to the sixteenth surface (S16) of the second prism (P2) may be provided as free-form surfaces having non-rotationally symmetrical shapes. Accordingly, deterioration of the optical performance of a high-resolution optical system can be prevented.

[0093]

[0094] The third prism (P3) may have a polygonal prism shape, for example, a triangular prism shape. The third prism (P3) may have a prism shape having at least three optical surfaces (S19-S22) on the optical path. Accordingly, the size of the optical system (100) can be reduced. The third prism (P3) includes a nineteenth surface (S19) to a twenty-second surface (S22). The third prism (P3) has at least one transmission / total reflection surface (TS3: S20, S22), and the transmission / total reflection surface (TS3: S20, S22) is a third transmission / total reflection surface (TS3), and the third transmission / total reflection surface (TS3: S20, S22) is arranged on an exit surface and may include a 20th surface (S20) that totally reflects incident light and a 22nd surface (S22) that transmits light. The third prism (P3) reflects light incident through the incident-side surface once or twice and then exits the light.

[0095] As shown in FIGS. 1 to 6b and 8c, the reflective surface (S21) of the third prism (P3) can reflect light incident through the incident-side surface (S19) in the direction of the first plane or the horizontal plane (XZ plane), that is, can reflect the light once in the direction of the first plane. The reflection angle of the light by the reflective surface (S21) of the third prism (P3) can be changed to be 75 degrees or more, for example, in the range of 75 degrees to 105 degrees. The light incident on the incident surface (S19) of the third prism (P3) is reflected by the total reflection surface (S20), and then reflected again by the reflective surface (S21), and then transmitted through the transmission surface (S22) to be imaged on the entire area of ​​the image sensor (10). At least one or all of the incident surface (S19), the reflective surface (S21), and the output-side transmission / total reflection surface (S20, S22) of the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. Accordingly, the resolution and optical performance may be improved by the free-form surfaces of the third prism (P3). At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface) that does not have any axis of symmetry within the lens surface.

[0096] Accordingly, since each of the second and third prisms (P2, P3) has a free surface of a non-rotationally symmetric shape, the degradation of optical performance due to the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has a full free surface of non-rotational symmetry without an axis of symmetry, the resolution and optical performance in the horizontal plane direction can be improved.

[0097]

[0098] The first to third prisms (P1, P2, P3) can be defined as prisms or reflective lenses that reflect one or more times. One or three or fewer lenses are arranged in at least one area between adjacent two prisms, and may be transmission lenses. The first lens (L1-1) is arranged between the first prism (P1) and the second prism (P2). The number of the first lens (L1-1) may be one or three or fewer. The first lens (L1-1) and the first prism (P1) may be arranged in the same direction as or different from the first direction (X). The second lens (L2-1) is arranged between the second prism (P2) and the third prism (P3). The number of the second lens (L2-1) may be one or two or fewer. The second lens (L2-1) and the third prism (P3) can be arranged in the first direction (X).

[0099] The second prism (P2) may be arranged between a group having the first prism (P1) and the first lens (L1-1) and a second group having the third prism (P3) and the second lens (L2-1). Accordingly, the seventh surface (S7) on the incident side of the first lens (L1-1) may face the sixth surface (S6) on the output side of the first prism (P1), and the eighth surface (S8) on the output side of the first lens (L1-1) may face the ninth surface (S9) on the incident side of the second prism (P2). The 17th surface (S17) on the incident side of the second lens (L2-1) faces the 16th surface (16) on the exit side of the second prism (P2), and the 18th surface (S18) on the exit side can face the 19th surface (S19) on the incident side of the third prism (P3).

[0100] The center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) may be greater than the center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2), and may be, for example, 1.5 times or more greater. The center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2) may be 1.5 mm or less, for example, in the range of 0.5 mm to 1.5 mm, and the center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) may be 2 mm or more, for example, in the range of 2 mm to 5 mm. In this way, by setting the distance between two adjacent prisms to be within the above range, the width of the optical system (100) can be reduced. Here, when the center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2) is PL1, and the center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) is PL2, the following condition can be satisfied. In the following, D is the diagonal length of the image sensor.

[0101] Condition 1: 0 < PL1 / D < 0.5 Condition 2: 0 < PL2 / D < 0.5

[0102] Condition 3: PL1 / D < PL2 / D

[0103] As shown in Fig. 6b, the origin coordinates (SC13_OC) of the thirteenth face (S13) of the second prism (P2) may be the same as the hit point (S13_HP) of the reference light beam for the first to third directions (X, Y, Z). In addition, the origin coordinates (SC18_OC) of the eighteenth face (S18) may be spaced apart from the hit point (S18_HP) of the reference light beam for the first to third directions.

[0104]

[0105] As shown in FIGS. 1 to 6b and 7(b), at least one or both of the incident-side seventh surface (S7) and the exit-side eighth surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetrical shape. The free-form surface may have a Half-FFS having one axis of axis symmetry within the lens surface among a plurality of axes passing through the center within the lens surface, and a Full-FFS having no axis of axis symmetry at all, and there may be two Full-FFS. The resolution and optical performance may be improved by the free-form surface of the first lens (L1-1). At least one or both of the free-form surfaces of the first lens (L1-1) may have a Full-FFS (Freeform surface). The first lens (L1-1) may be made of an injection-molded glass or plastic material.

[0106] The plane including the reference ray (L100) passing through the center of the cooking in the second prism (P2) and heading toward the center of the image sensor is defined as the XY cross-section (i.e., the first plane), and the direction perpendicular to the reference ray (L100) incident on the second prism (P2) on the XY cross-section is defined as the Y-axis direction (i.e., the second direction), and the direction toward the incident surface of the prism can be the +Y direction, and the opposite direction (from the incident side to the exit side) can be the -Y direction. The first lens (L1-1) arranged on the incident side of the second prism (P2) can have a first edge thickness in the +Y direction and a second edge thickness in the -Y direction that are different from each other at the lens center. For example, the first lens (L1-1) may have different thicknesses at the top (end in the +Y direction) and the bottom (end in the -Y direction) in the second direction (Y) with respect to the center. That is, the top of the first lens (L1-1) may be thicker than the bottom in the second direction (Y). The side cross-sectional shape of the first lens (L1-1) may be a wedge shape. The top and bottom of the first lens (L1-1) are thicknesses of both edges of the effective area in the second direction passing through the center.

[0107] When the top thickness (or first edge thickness) of the first lens (L1-1) is L1_ET1 and the bottom thickness (or second edge thickness) is L1_ET2, the following conditions can be satisfied.

[0108] Condition: L1_ET1 / L1_ET2 > 1.5

[0109] That is, the thickness ratio of the top / bottom of the first lens (L1-1) may be greater than 1.5, for example, in the range of 2 to 3.5 or in the range of 2.5 to 3. Accordingly, aberration correction may be possible by providing different powers due to the thickness difference at the two edges in the second direction of the first lens (L1-1). Since the thickness of the top of the first lens (L1-1) is provided to be thicker than the thickness of the bottom, light refracted through the first lens (L1-1) may be incident on the entire area of ​​the incident surface (S9) of the second prism (P2).

[0110]

[0111] As shown in FIGS. 1 to 6b and 8(b), at least one or both of the incident-side 17th surface (S17) and the exit-side 18th surface (S18) of the second lens (L2-1) may have a free-form surface of a non-rotationally symmetrical shape. The resolution and optical performance may be improved by the free-form surface of the second lens (L2-1). At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). The second lens (L2-1) may be made of a moldable glass or plastic material.

[0112] The second lens (L2-1) may have different thicknesses at the top (end in the +Y direction) and the bottom (end in the -Y direction) in the second direction (Y) based on the center. That is, the bottom of the second lens (L2-1) in the second direction (Y) may be thicker than the top. The second lens (L2-1) may have a wedge-shaped cross-section. Since the bottom thickness of the second lens (L2-1) is provided to be thicker than the top thickness, light refracted through the second lens (L2-1) may be incident on the entire area of ​​the incident surface (S19) of the third prism (P3).

[0113] The invention comprises a first lens (L1-1) between the first and second prisms (P1, P2), and / or a second lens (L2-1) between the second and third prisms (P2, P3), wherein at least one or both of the incident side surfaces and the exit side surfaces of the first and second lenses (L1-1, L2-1) may have a full free-form surface that does not have an axis of symmetry with respect to different axial directions. By means of the first and second lenses (L1-1, L2-1), the resolution and optical performance in the horizontal plane direction can be improved. In addition, by means of the second lens (L2-1) arranged between the second and third prisms (P2, P3), the non-rotational symmetry of the CRA (Chief ray angle) can be removed, and the distribution of the CRA of a general optical system can be corrected to be the same, and the non-rotationally symmetric light quantity can also be reduced.

[0114] The invention relates to an optical system (100), i.e., a reflective optical system. In order to slim down the entire optical system, it is necessary to increase the amount of eccentricity for each light ray by each reflective surface constituting the second prism (P2). However, if the amount of eccentricity by each reflective surface increases, eccentric aberration may occur. Therefore, the invention provides a free-form surface to the refractive surface and a plurality of reflective surfaces of the second prism (P2), and further provides a free-form surface having a non-rotationally symmetrical shape for at least one lens (L1-1) on the incident side of the second prism (P2) and at least one lens on the exit side, so that the eccentric aberration occurring due to the slimming down of the optical system can be efficiently corrected. As a result, an optical system having a slim structure and high optical performance can be provided even for a large sensor.

[0115] The incident-side fourth surface (S4) of the first prism (P1) may have a concave or convex shape in the paraxial region, and the exit-side sixth surface (S6) may have a concave or convex shape in the paraxial region. The incident-side seventh surface (S7) of the first lens (L1-1) may have a convex shape in the paraxial region, and the exit-side eighth surface (S8) may have a convex shape in the paraxial region. The incident-side ninth surface (S9) of the second prism (P2) may have a concave or convex shape in the paraxial region, and the exit-side sixteenth surface (S16) may have a concave or convex shape in the paraxial region. The incident-side 17th surface (S17) of the second lens (L2-1) may have a concave shape in the paraxial region, and the exit-side 8th surface (S8) may have a convex shape in the paraxial region. The incident-side 19th surface (S19) of the third prism (P3) may have a concave or convex shape in the paraxial region, and the exit-side 22nd surface (S22) may have a convex or concave shape in the paraxial region.

[0116] As in the lens data of Fig. 9, the incident light passes through the third surface (S3) to the twenty-second surface (S22) and is incident on the image sensor (10). From the fourth surface (S4) to the twenty-second surface (S22), the fifth surface (S5) around the center of each surface, i.e., in the paraxial region, may have the absolute value of the maximum radius of curvature, and the seventh surface (S7) may have the minimum radius of curvature. The radius of curvature of the sixth and seventh surfaces (S6, S7) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. In the second prism (P2), the surface having the maximum radius of curvature (absolute value) may be the first transmission / total reflection surface (TS2) or the second transmission / total reflection surface (TS2). In the third prism (P3), the surface having the maximum radius of curvature is the third transmission / total reflection surface (TS3).

[0117] In the lens data of Fig. 9, XSC, YSC, ZSC, ASC, BSC, and CSC define the global position of the coordinates of each surface, that is, the S1 surface as the global coordinate origin, and XSC, YSC, and ZSC represent the center coordinates of each surface in the global coordinates of the S1 surface. XSC, YSC, and ZSC represent the radii of curvature in the X, Y, and Z directions, respectively, at the center and its paraxial region of each surface, and when defining the curvature on a free-form surface, XSC represents the degree to which the surface is bent in the X direction, YSC represents the curvature in the Y direction, and ZSC represents the curvature in the Z direction. As in Fig. 50, ASC, BSC, and CSC mean rotating (α, β, γ) the X, Y, and Z coordinate axes. ASC, BSC, CSC refer to various methods of rotating (α, β, γ) the coordinate axes in the X, Y, and Z directions. ASC stands for "Axis-Angle Rotation" and refers to the method of rotating the coordinate axes using the rotating axis and the rotation angle. BSC stands for "Basic Sequence of Rotations" and indicates the basic rotation order. CSC stands for "Coordinate System Conversion" and indicates the rotations that may occur in the process of converting the coordinate system.

[0118] In the lens data of Fig. 10, the reference ray is defined as a ray passing through the center of the aperture at the center of the field of view (x(0), y(0)). The local paraxial* is defined as the center ray of the aperture of the central field of view light as the reference ray, and the radius of curvature (local-rx, ry) on the hit point (incident position) on each side of the reference ray and the distance (local-d) between the hit points, and the focal length (local-fx, fy) is defined by calculating the paraxial distance with the refractive index (Nd). Here, local-d* can be defined as the distance (+: S1 Global Z axis +direction, -: S1 Global Z Axis -direction) on the reference ray. It can be seen that the radii of curvature (local-rx, ry) in the first and second directions in the paraxial regions of the fourth surface (S4) to the twenty-second surface (S22) are different from each other. It can be seen that the focal lengths (Local-fx, fy) in the first and second directions (x, y) in the axial region of the fourth surface (S4) to the twenty-second surface (S22) are different from each other.

[0119]

[0120] The focal lengths (local_fx, local_fy) of the first prism (P1), the first lens (L1-1), the second lens (L2-1), and the third prism (P3) in the first direction (X) and the second direction (Y) are as shown in Table 1. As shown in Table 1, the focal length in the first direction (X) of the first prism (P1) is greater than the focal length in the second direction (Y). In the first prism (P1), the focal length in the first direction (X) and the focal length in the second direction (Y) have the same positive value. In the first lens (L1-1), the focal length in the first direction (X) and the focal length in the second direction (Y) have opposite signs. In the second lens (L2-1), the focal length in the first direction (X) has the opposite sign to the focal length in the second direction (Y) and is smaller than the absolute value of the focal length in the second direction (Y). In the third prism (P3), the focal length in the first direction (X) may be greater than the focal length in the second direction (Y). In the third prism (P3), the focal length in the first direction (X) and the focal length in the second direction (Y) have the same positive (+) value.

[0121] P1L1-1local_fxlocal_fylocal_fxlocal_fy10.3777.9932.223-28.32L2-1P3local_fxlocal_fylocal_fxlocal_fy79.091-345.73159.49831.56

[0122]

[0123] Since the image-forming surface of a lens or prism other than the second prism is formed outside the lens or prism, the focal length can be calculated as shown in Table 1. However, since the second prism has the strongest power and has the image-forming surface inside the prism, the focal length cannot be calculated, and therefore is not listed in Table 1. The power from the first prism (P1) to the third prism (P3) is the greatest in the second prism (P2), and the composite local focal length (F(S3:S8)) from the first prism (P1) to the first lens (L1-1) has the same sign as the local focal lengths in the first direction (X) and the second direction (Y), thereby canceling out the aberration occurring in the second prism (P2). In addition, since the composite local focal lengths in the first and second directions from the first prism (P1) to the first lens (L1-1) have positive values, the second prism (P2) can be miniaturized.

[0124] As shown in Table 2, the composite local focal lengths (F(S17:S22)) in the first and second directions from the second lens (L2-1) to the third prism (P3) have the same sign. Accordingly, the aberration occurring in the second prism (P2) can be canceled out. In Table 2, F(S3:S8) is the composite local focal length of the object-side lens and the prism of the second prism (P2), and F(S17:S22) is the composite local focal length of the sensor-side lens and the prism of the second prism (P2).

[0125] F(S3:S8)F(S17:S22)local_fxlocal_fylocal_fxlocal_fy8.52310.38134.52435.78

[0126] When the refractive indices of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Nd1, Nd2, Nd3, Nd4, and Nd5, the following conditions can be satisfied.

[0127] Condition 1: Nd1 < Nd2 Condition 2: Nd1,Nd2 < Nd3

[0128] Condition 3: Nd5,Nd1 < Nd4

[0129] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Vd1, Vd2, Vd3, Vd4, and Vd5, the following conditions can be satisfied.

[0130] Condition 1: Vd2 < Vd1 Condition 2: Vd2,Vd3 < Vd1

[0131] Condition 3: Vd2,Vd4 < Vd5

[0132]

[0133] As shown in FIGS. 1 and 9, an optical filter (not shown) or / and a cover glass (11) are disposed between the image sensor (10) and the third prism (P3), and the cover glass (11) may have an incident side surface (S23) and an exit side surface (S24). The cover glass (11) may be disposed between the optical filter and the image sensor (10). The optical filter may include an infrared filter. The optical filter may pass light of a set wavelength band and filter light of a different wavelength band. When the optical filter includes an infrared filter, it may block radiant heat emitted from external light from being transmitted to the image sensor (10). In addition, the optical filter may transmit visible light and reflect infrared light. The optical axis distance between the image sensor (10) and the lens or third prism (P3) adjacent to the image sensor (10) is the back focal length (BFL) and may be 1.5 mm or less.

[0134] The first prism (P1) may have one or more non-rotationally symmetrical free-form surfaces. Accordingly, it is possible to slim down an optical system having a high resolution (e.g., 50 M pixels or more) of a large image sensor of 50 M (Megapixel) 1 inch or more, and to prevent deterioration of optical performance. The first prism (P1) may have one or more non-rotationally fully free-form surfaces (FFS: Fully freeform surfaces) on the lens surface that do not have axes of symmetry with respect to different axial directions. Accordingly, the resolution and optical performance in the horizontal plane direction can be improved. At least one lens may be provided between the first and second prisms, or between the second and third prisms, and the lens may have a non-rotationally symmetrical free-form surface. By means of such lenses, optical performance corresponding to high resolution can be improved. The above third prism (P3) is implemented as a two-time reflecting prism having a total reflection surface, and thus the third prism (P3) can be slimmed down, and the entire optical system can be slimmed down or the optical performance can be improved.

[0135]

[0136] As shown in Fig. 10a, the optical system may have an intermediate imaging plane (M1). That is, the second prism (P2) may have an intermediate imaging plane (M1). The intermediate imaging plane (M1) may be arranged on an optical path within the second prism (P2). Within the second prism (P2), the intermediate imaging plane (M1) may be arranged on an optical path between the tenth surface (S10), which is a first reflective surface facing the ninth surface (S9) on the incident side, and the twelfth surface (S12), which is a second reflective surface adjacent thereto. Here, the eleventh surface (S11) between the tenth surface (S10) and the twelfth surface (S12) is a total reflective surface and may face parts of the first and third reflective surfaces (S10, S12). The second reflective surface, the 12th surface (S12), is the next reflective surface of the intermediate imaging surface (M1), and the imaging positions of the intermediate imaging surface (M1) between the reference ray and the sub-rays may be different. As shown in Fig. 10b, the incidence angle (R1) of the reference ray (L100) on the 12th surface (S12), the second reflective surface of the second prism (P2), may be less than 45 degrees with respect to a straight line perpendicular to the tangent line of the 12th surface (S12), and the following conditions may be satisfied.

[0137] Condition: 0 < R1 < 45 degrees

[0138] By suppressing the incidence angle of the reference ray (L100) according to the above conditions, the eccentric aberration can be reduced and the deterioration of the optical performance can be prevented. Preferably, 20 degrees < R1 < 40 degrees can be satisfied. The effective area of ​​the twelfth surface (S12) within the second prism (P2) can be smaller than the effective areas of each of the incidence surface (S9) and the emission surface (S16). Accordingly, the size of the second prism (P2) in the third direction can be reduced. In addition, the twelfth surface (S12) can have an effective area smaller than the effective areas of the ninth, tenth, thirteenth, fourteenth, and fifteenth surfaces (S9, S10, S13, S14, S15).

[0139]

[0140] Fig. 11 is a spot diagram showing the optical performance of the optical system according to the first embodiment, and it can be seen that the optical performance is improved for, for example, nine fields. Since the optical system is not a rotationally symmetric optical system, the performance is evaluated using a spot diagram, and an image can be observed without any problem at a level like Fig. 11. The spot diagram of Fig. 11 is a geometric optical point spread function, which means that the performance is better as the spots are gathered at one point. Since the optical system is not symmetric about the x and y axes, the fields were calculated for a total of nine. The spot diagram of the zero-field is located at the bottom in Fig. 11. The distortion in the optical system is less than 3%, and the rotational symmetry of the incident CRA of the imaging surface is less than ±3 degrees.

[0141] The optical system can reduce the thickness (T) of the optical system and the camera module in the third direction (Z) by arranging first to third prisms (P3) that provide a light reflection path between the object and the image sensor (10). Here, when the effective diagonal length of the image sensor (10) is D, it can satisfy T / D < 0.55, and more specifically, it can satisfy the following conditional expression 1. In FIG. 52, the diagonal length (Img2H) of the image sensor (10) is equal to the effective diagonal length (D).

[0142] Condition 1: T / D < 0.53

[0143] Condition 1 can preferably satisfy 0.39 < T / D < 0.53. Accordingly, it is possible to slim down an optical system having a high resolution (e.g., 50M or more) of a large sensor of 1 inch or more, and to prevent deterioration of optical performance. The thickness (T) of the optical system in the third direction (Z) is an effective length or effective diameter from the third surface (S3) of the first prism (P1) in FIG. 1 to the image sensor (10), and can be defined as the difference between the maximum value and the minimum value in the global Z direction of the first surface.

[0144]

[0145] When the width of the first direction (X) of the optical system is W and the height of the second direction (Y) is H, the following conditional expression 2 can be satisfied.

[0146] Condition 2: 1 < H / W < 2

[0147] Condition 2 can preferably satisfy 1 < H / W < 1.7. Accordingly, an optical system in which the height in the second direction (Y) is less than twice the width in the first direction (X) can be provided.

[0148]

[0149] The optical axis distance between the image sensor (10) and the lens or third prism (P3) adjacent to the image sensor (10) is the BFL (Back focal length), and BFL and T can satisfy conditional expression 3. The BFL (Back focal length) is the optical axis distance or center distance from the exit side of the last lens or prism to the image sensor (10).

[0150] Condition 3: 5< T / BFL ​​< 15

[0151] Condition 3 preferably satisfies 4: 6 < T / BFL ​​< 13.

[0152] The field of view (FOV) of the optical system is greater than 70 degrees, and may be, for example, in the range of 70 degrees to 120 degrees or in the range of 75 degrees to 110 degrees.

[0153]

[0154] In an embodiment of the invention, the free-form surface is a Q2D (Quasi two dimensional) type free-form surface. ) is as follows: Equation 1.

[0155] [Formula 1]

[0156]

[0157] In Equation 1, the equation of the conic surface of the base with the off-axis angle parameter ( ) is as shown in Equation 2.

[0158] [Formula 2]

[0159]

[0160]

[0161]

[0162] R: Radius of curvature of the conic axis

[0163] k: Conic constant

[0164] ω: angle between the normal to the surface at the off-axis point and the axis of the conic

[0165]

[0166] The equation defined as the equation of the free surface quantity of the Q2D type of equation 1 is as follows.

[0167] [Formula 3]

[0168]

[0169] Equation 3 is the free surface equation given in Equation 1, is an nth-order polynomial, and the free surface coefficient Ci(i=10-80) is this coefficient. The parameters of Equation 3 can be explained as in Equation 4 below.

[0170] [Formula 4]

[0171]

[0172]

[0173] Tables 3 to 6 below show the radius of curvature (R) of the conic axis of the fourth to twenty-second surfaces (S22), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80) and the dimensions (uk, m). The FFS (C10-C80) and the dimensions (uk, m) are shown in Fig. 36. In the following tables, Full FFS is abbreviated as F-FFS, and Half FFS is abbreviated as H-FFS.

[0174] S4(F-FFS)S5(F-FFS)S6(F-FFS)S7(F-FFS)S8(F-FFS)R14.215-1735.9326.85811.948-259.772Nradius3.7295.2054.66412.06712.485k00000ω00000X Offset-1.1474.E-02-1.2145.E-01-2.2521.E-021.5858.E-03-2.7821.E-02Y Offset9.5084.E-01-1.8573.E-017.0689.E-01-7.2436.E-012.4496.E+00C10-3.2570.E-037.0364.E-027.6314.E-02 3.4722.E-02-3.1411.E-01C11-7.2609.E-021.6123.E-01-2.0780.E-014.7205.E-01-1.7799.E-01C13-2.8445.E-02-1 .4281.E-02-1.3299.E-01-4.7326.E-019.4587.E-01C14-5.1667.E-03-2.3696.E-02-1.8043.E-011.9444.E-039.168 4.E-02C15-2.2750.E-04-6.3855.E-03-5.1627.E-022.9586.E-021.7053.E-01C163.6164.E-021.5373.E-033.6311.E- 015.1681.E-011.4636.E+00C17-1.4717.E-02-4.6153.E-031.0633.E-01-7.6653.E-011.7627.E+00C18-3.0492.E-03 -6.8489.E-03-4.6380.E-020-1.9020.E-01C192.7404.E-021.9193.E-022.4764.E-011.9620.E-02-2.5676.E+00C204. 4221.E-02-3.2866.E-03-1.1333.E-01-2.3184.E-016.4829.E-01C21-1.4618.E-03-1.3746.E-027.4979.E-021.3701. E-039.3372.E-02C221.0071.E-03-2.3239.E-043.9458.E-038.1146.E-034.1360.E-01C237.2657.E-032.5555.E-034.1140.E-02-1.5159.E-017.9144.E-01C243.5359.E-031.7448.E-03-4.63 99.E-02-1.1305.E-012.6928.E-01C25-3.0643.E-022.6473.E-037.7278 .E-021.2076.E+00-8.6185.E-01C26-1.2553.E-03-4.0795.E-02-1.5161 .E-0103.4554.E-01C27-6.8107.E-04-6.6221.E-045.4074.E-023.4707.E -03-5.2073.E-02C285.2248.E-03-1.2595.E-038.9507.E-02-9.3885.E-03-1.0362.E+00C291.0379.E-041.4293.E-03-6.5210.E-04-4.9802.E-02 7.2870.E-01C30-3.8949.E-04-3.5602.E-036.8177.E-039.5269.E-045.4472.E-02C314.0431.E-041.0046.E-03-1.1516.E-03-6.1993.E-04-9.58 98.E-04C32-3.9399.E-041.3099.E-03-5.9781.E-04-1.3590.E-012.225 9.E-01C331.2205.E-04-4.0375.E-04-9.5842.E-058.7666.E-02-2.7789 .E-01C341.5073.E-03-8.6245.E-03-1.3635.E-020-5.8073.E-01C351.2419.E-02-2.7051.E-02-1.6570.E-012.4955.E+001.4088.E+00C365.8576 .E-049.3805.E-03-1.4389.E-014.2851.E-01-1.6990.E-02C37-5.9101.E-046.3903.E-031.1951.E-0201.8526.E-01C38-1.5911.E-044.2064.E-0 31.3944.E-045.5691.E-048.0791.E-04C391.4926.E-04-2.0350.E-03-1.4374.E-04-7.2060.E-02-4.3663.E-01C404.7646.E-04-4.3709.E-04-2.5566.E-034.1983.E-021.3762.E-01C412.5226.E-043.2114.E-031.3156 .E-035.0883.E-04-5.9280.E-03C42-1.2781.E-04-3.7599.E-042.0011. E-05-1.8367.E-032.4833.E-03C432.2639.E-04-5.9745.E-046.0286.E-04-5.4893.E-02-9.8574.E-02C44-3.2204.E-04-5.1315.E-051.8769.E-0 31.4388.E-01-1.6901.E-02C455.6592.E-04-4.3320.E-022.3160.E-016.8378.E-02-3.2330.E+00C46-5.8119.E-042.7525.E-02-3.0870.E-0206. 5694.E-02C477.5067.E-042.0180.E-02-1.3483.E-0303.4112.E-02C483 .7223.E-053.1731.E-033.4054.E-075.3700.E-01-4.5157.E-02C494.217 2.E-04-7.5903.E-031.0092.E-032.8550.E-012.2138.E-01C50-4.5642.E-055.2852.E-031.8422.E-034.9700.E-025.6783.E-03C513.0847.E-04 9.4696.E-05-3.8161.E-041.5824.E-041.7464.E-03C52-1.9256.E-047.1947.E-043.8403.E-04-8.8043.E-04-2.0123.E-01C53-2.6632.E-04-1.5 217.E-03-4.0272.E-039.4680.E-02-1.6126.E-02C541.1737.E-043.0803.E-047.5803.E-04-3.2584.E-04-7.4618.E-03C55-4.3852.E-047.1301. E-04-8.7220.E-04-9.0905.E-045.8434.E-03C561.8604.E-04-3.0795.E-047.9003.E-043.7049.E-021.4078.E-01C571.9129.E-053.1954.E-046.6979.E-041.4542.E-011.1659.E-01C588.2861.E-04-1.8082.E-02-1.40 15.E-0200C592.8893.E-031.5897.E-028.8444.E-021.9302.E+018.2211 .E+00C60-2.3597.E-041.3286.E-02-2.6918.E-034.0715.E+001.3664.E+00C616.3165.E-04-3.3963.E-031.1060.E-0300C62-3.7574.E-04-5.180 1.E-03-1.1954.E-0301.4238.E-02C635.5718.E-056.8071.E-043.6176.E-03-1.1573.E+00-6.0913.E-01C641.3272.E-042.1491.E-03-7.2411.E- 044.2073.E-012.7450.E-01C65-1.9259.E-05-1.6151.E-03-9.9796.E-043.2966.E-022.2426.E-03C66-1.7827.E-05-6.8242.E-04-8.3087.E-048 .0690.E-041.7914.E-03C671.6841.E-04-2.2205.E-04-7.5412.E-048.2110.E-02-6.9064.E-02C68-3.8606.E-057.6699.E-046.7351.E-053.619 4.E-024.4932.E-03C69-1.6854.E-04-4.4448.E-04-6.7101.E-04-1.4322.E-03-1.0269.E-02C701.9164.E-04-4.1233.E-04-7.7222.E-051.2225. E-038.8285.E-03C713.3228.E-056.7528.E-05-1.1515.E-03-1.9128.E- 02-1.0475.E-02C72-8.1946.E-063.7253.E-04-6.0930.E-043.4174.E-02 5.1225.E-02C733.5253.E-05-4.9908.E-041.7682.E-04-7.8066.E-03-1.2362.E-01C74-2.8842.E-05-4.2066.E-054.1646.E-04-3.5265.E-02-1.2714.E-02C758.9750.E-064.6367.E-04-6.9631.E-04-4.5069.E-025.7824.E-02C763.4722.E-06-4.2556.E-049.1797.E-05-3.2454.E-022.7464.E-02C77-1.0915.E-068.2117.E-057.6602.E-046.9956.E-03-4.3781.E -02C78-9.3940.E-077.3791.E-05-9.4970.E-043.2941.E-021.4866.E-02C79-4.5639.E-06-5.5205.E-075.6002.E-041.8205.E-029.8043.E-03C80-1.4304.E-06-3.2378.E-05-1.7179.E-04-1.9592.E-02-8.5627.E-03.

[0175] S9(H-FFS)S10(H-FFS)S11(H-FFS)S12(H-FFS)S13(H-FFS)R53.75816.01853 .75828.336-46.347Nradius14.3339.20614.33316.7258.925k00000ω00000X Offset00000Y Offset5.2766.E-02-1.6092.E+005.2766.E-02-2.5307.E+008.1162.E-01C1000000C112.3357.E+00-1.3691.E-012.3357.E+ 00-1.1634.E+00-2.1648.E+00C131.3984.E-01-8.1696.E-011.3984.E-01-6.4755.E-01-8.7397.E-02C1400000C1500000C161 .3685.E+00-2.3847.E-011.3685.E+001.7734.E-012.6114.E-01C17-9.0424.E-013.7484.E-01-9.0424.E-01-5.3968.E-01- 3.8392.E-01C1800000C19-3.6585.E-01-6.5521.E-01-3.6585.E-01-1.9747.E+00-3.7189.E-01C203.5211.E-011.1537.E-01 3.5211.E-01-3.9919.E-01-8.4542.E-02C2100000C2200000C235.0582.E-01-7.7202.E-025.0582.E-012.0736.E-013.2892. E-02C244.0347.E-016.9181.E-024.0347.E-01-3.7312.E-015.3014.E-04C25-2.2666.E+003.2496.E-01-2.2666.E+005.6695 .E-01-2.8531.E-01C2600000C2700000C28-3.0038.E-011.7559.E-01-3.0038.E-01-5.9579.E-011.4188.E-01C29-9.0004.E- 024.8542.E-02-9.0004.E-02-1.6717.E-017.2694.E-02C3000000C3100000C322.1586.E-032.2494.E-022.1586.E-031.2115.E-011.6916.E-02C33-1.9329.E-03-1.8385.E-02-1.9329.E-03-8.7000. E-02-4.3163.E-02C3400000C352.0739.E-023.3732.E-022.0739.E-023. 9739.E+001.8606.E-01C364.2029.E-01-9.3210.E-024.2029.E-016.0934.E-015.6592.E-02C3700000C3800000C39-1.6338.E-035.7226.E-02-1.6 338.E-03-2.0530.E-01-6.6769.E-03C409.8302.E-03-1.7089.E-029.83 02.E-033.0947.E-011.3846.E-02C4100000C4200000C431.9902.E-037.2 005.E-031.9902.E-031.1805.E-03-5.9459.E-03C44-4.0526.E-03-1.07 98.E-02-4.0526.E-03-1.4081.E-02-1.1103.E-02C45-6.9388.E-016.389 2.E-02-6.9388.E-014.0980.E+00-1.4696.E-01C4600000C4700000C48-3.7697.E-03-3.5572.E-02-3.7697.E-035.3927.E-01-1.8424.E-02C49-1 .9100.E-03-9.4924.E-04-1.9100.E-031.0090.E-014.2701.E-03C5000000C5100000C522.2770.E-03-6.1523.E-022.2770.E-03-6.8862.E-02-7.1 831.E-03C53-5.9470.E-031.2809.E-02-5.9470.E-031.0372.E-01-3.8294.E-02C5400000C5500000C56-3.0295.E-042.5141.E-03-3.0295.E-04- 2.8276.E-02-1.2608.E-02C57-7.8133.E-04-1.5915.E-02-7.8133.E-042.6834.E-021.5448.E-02C5800000C593.3021.E-02-1.5929.E-013.3021.E-025.1703.E+00-3.9935.E-03C60-1.5618.E-025.5535.E-02-1.5618.E-02-7.7132.E-011.7509.E-02C6100000C6200000C63-3.6035.E-032.6 508.E-02-3.6035.E-03-1.4209.E-01-2.8782.E-03C64-1.0804.E-032.1773.E-03-1.0804.E-03-8.4173.E-026.9479.E-04C6500000C6600000C6 79.2515.E-032.1134.E-029.2515.E-031.1844.E-011.5472.E-04C681. 7318.E-03-6.0265.E-031.7318.E-03-2.6708.E-021.0897.E-02C69000 00C7000000C715.3101.E-03-5.9122.E-035.3101.E-03-2.8893.E-025.1568.E-03C727.1253.E-039.5445.E-037.1253.E-032.4429.E-021.3909 .E-02C73-1.5032.E-044.6433.E-03-1.5032.E-048.2924.E-03-1.6870 .E-03C74-5.2772.E-03-9.7806.E-03-5.2772.E-03-2.1416.E-02-9.72 99.E-03C754.1276.E-044.0384.E-034.1276.E-04-9.1888.E-03-2.4671.E-03C761.2772.E-044.1546.E-031.2772.E-04-8.5817.E-035.2310.E-03C77-1.5877.E-03-7.5470.E-03-1.5877.E-03-6.4950.E-041.8725.E-03C781.0562.E-036.3263.E-031.0562.E-031.3131.E-02-2.2185.E- 03C792.4258.E-04-3.1183.E-032.4258.E-04-5.9427.E-03-3.7677.E- 04C801.5401.E-035.1840.E-041.5401.E-03-1.6695.E-034.5422.E-04.

[0176] S14(H-FFS)S15(H-FFS)S16(H-FFS)S17(F-FFS)S18(F-FFS)R-313.031-18.754-3 13.031-53.849-39.085Nradius32.6969.83832.6968.53614.111k00000ω00000X Offset0004.6018.E-013.6594.E-01Y Offset1.9002.E+002.2255.E-011.9002.E+001.5776.E-01-3.6305.E-01C10000-3.2832.E-029.5648.E-02C115.4442.E- 01-9.7259.E-015.4442.E-013.8913.E-023.4123.E-01C13-1.2006.E+00-6.0224.E-01-1.2006.E+001.6754.E-016.3340 .E-01C140006.9107.E-022.1084.E-02C15000-8.3883.E-029.6485.E-02C16-3.1654.E+00-9.6219.E-01-3.1654.E+008. 1230.E-03-4.7792.E-01C17-5.1662.E-01-1.4113.E-02-5.1662.E-019.6174.E-02-9.4836.E-02C180008.0780.E-02-4.5 782.E-02C194.4896.E+00-9.7636.E-024.4896.E+00-2.6945.E-01-3.7773.E-01C20-7.6963.E-01-1.9446.E-01-7.6963.E-018.9162.E-02-1.4105.E-01C21000-2.4365.E-03-2.2688.E-01C22000-4.3409.E-027.7785.E-03C238.1192.E-02-1 .3473.E-018.1192.E-028.2550.E-02-1.1607.E-01C24-1.4390.E+002.2586.E-03-1.4390.E+001.7660.E-02-1.9749.E-01C252.6563.E+01-6.1602.E-012.6563.E+014.8296.E-011.5016.E-01C26000-2.6125.E-027.2441.E-02C27000-8.4509.E-03-6.1374.E-02C286.2525.E-011.5255.E-016.2525.E-01-5.4463.E-02-2.1103.E-01C296.3494.E-01-6.4921.E-026.3494.E-01-3.3143.E-0 21.7076.E-01C30000-2.5961.E-02-1.1361.E-02C310007.2004.E-03-1.8310.E-01C32-5.3785.E-013.2595.E-03-5.3785.E-01-1.1748.E-01-5.4 334.E-03C33-2.8975.E-01-8.5634.E-03-2.8975.E-01-1.0996.E-02-1. 7396.E-02C340003.9316.E-016.2898.E-02C356.4678.E+01-2.1263.E-0 26.4678.E+012.2973.E-02-1.8624.E-01C36-1.9760.E+002.0248.E-01-1.9760.E+002.1668.E-01-1.2770.E-01C37000-4.0248.E-039.7535.E-03 C38000-1.8147.E-02-7.8132.E-02C396.0408.E-011.6904.E-026.0408. E-018.5374.E-033.4666.E-02C40-4.6985.E-013.2176.E-03-4.6985.E- 01-7.8962.E-028.2311.E-02C41000-2.8775.E-02-1.1399.E-01C420007.8228.E-022.3055.E-02C43-3.7215.E-01-4.6135.E-03-3.7215.E-01-3. 4310.E-026.3233.E-02C44-1.3664.E-018.8379.E-03-1.3664.E-01-1.8 011.E-02-2.2494.E-02C45-1.7867.E+02-3.9260.E-01-1.7867.E+02-4. 2182.E-02-1.5523.E-01C460001.9988.E-01-4.9543.E-02C470007.7346 .E-02-4.3514.E-02C48-2.6026.E+00-5.7531.E-02-2.6026.E+001.6437.E-017.5454.E-02C491.3056.E-01-2.8243.E-021.3056.E-011.3809.E-021.4959.E-01C500001.5545.E-023.6769.E-02C51000-3.7225.E-023.90 18.E-02C524.2909.E-011.4281.E-024.2909.E-018.2110.E-02-1.1531. E-01C53-5.2756.E-011.4390.E-03-5.2756.E-01-2.7249.E-026.3128.E- 02C540001.8567.E-02-1.3016.E-02C55000-1.4646.E-021.7164.E-01C56-2.0897.E-01-1.2311.E-02-2.0897.E-012.0663.E-021.3315.E-02C57 -6.2989.E-02-6.9384.E-04-6.2989.E-02-8.3094.E-035.4410.E-02C58 000-3.9105.E-02-1.2040.E-01C59-3.5802.E+022.1465.E-01-3.5802.E+ 02-6.6555.E-01-1.8179.E-02C602.6324.E+01-6.2283.E-032.6324.E+01-2.1942.E-018.3975.E-02C610004.1613.E-023.7941.E-02C62000-1.8 830.E-02-1.0094.E-02C63-5.4662.E+005.3873.E-03-5.4662.E+001.9366.E-021.4936.E-01C646.2594.E-011.1335.E-026.2594.E-01-2.1608.E -027.2676.E-02C65000-1.2104.E-02-4.9274.E-02C660001.6731.E-02-6.0144.E-02C673.6830.E-01-8.8099.E-033.6830.E-01-3.3608.E-02-1 .2877.E-02C68-3.9114.E-013.2321.E-03-3.9114.E-012.3602.E-02-8. 3260.E-03C69000-6.9113.E-045.0111.E-02C70000-7.9150.E-031.9687.E-02C71-6.7706.E-026.0232.E-03-6.7706.E-02-5.7109.E-03-4.1844.E-02C724.2821 .E-02-2.9115.E-034.2821.E-02-1.5488.E-021.5216.E-02C737.2717.E-021.5366.E-03 7.2717.E-025.1128.E-021.2953.E-01C744.7909.E-023.0056.E-034.7909.E-02-4.5717.E-021.1453.E-01C752.0897.E-02-4.2459.E-032.0897.E-022.1524.E-027.4446.E-02C 76-1.0726.E-023.9657.E-05-1.0726.E-02-1.1137.E-035.5770.E-02C77-2.9364.E-02 4.0713.E-03-2.9364.E-02-7.3607.E-033.2203.E-02C78-3.1767.E-02-4.5430.E-03-3. 1767.E-026.7461.E-031.8234.E-02C79-1.8536.E-022.5231.E-03-1.8536.E-02-3.2093.E-036.7052.E-03C803.9971.E-03-6.8385.E-043.9971.E-036.4630.E-043.0992.E-03.

[0177] S19(F-FFS)S20(F-FFS)S21(F-FFS)S22(F-FFS)R-30.7091575.874-1199.7841575.874Nradius15.04810.99230.65910.992k0000ω0000X Offset-4.1026.E-01-1.3036.E+005.9734.E-01-1.3036.E+00Y Offset1.0218.E+012.0121.E+00-2.5594.E+002.0121.E+00C10-9.7191.E-01-7.4513.E-01-2.0986.E-01-7.4513.E-01C 11-3.4838.E-01-9.1340.E-022.6498.E-01-9.1340.E-02C131.4557.E-01-9.3612.E-02-7.6764.E-01-9.3612.E-02C14-9 .1358.E-029.6093.E-021.1161.E+009.6093.E-02C152.4533.E-018.8253.E-03-3.3058.E+008.8253.E-03C164.2993.E-01-1.0129.E-01-3.6655.E-01-1.0129.E-01C174.2963.E-01-5.2644.E-025.4036.E-01-5.2644.E-02C182.7035.E-011.9 108.E-011.9665.E+001.9108.E-01C19-3.6647.E-012.1397.E-012.0593.E+002.1397.E-01C20-2.7857.E-01-3.1996.E-02-7.9767.E-01-3.1996.E-02C21-3.1404.E-021.2066.E-021.3095.E+001.2066.E-02C22-2.5017.E-016.6119.E-03-8.1 757.E-016.6119.E-03C239.7284.E-02-9.1623.E-031.2498.E-01-9.1623.E-03C24-7.9266.E-022.4933.E-024.0192.E-012.4933.E-02C25-1.7662.E-016.0234.E-021.7710.E+006.0234.E-02C26-1.7717.E-011.0569.E-011.8630.E+001.0569.E-01C273.9971.E-026.0627.E-02-2.5738.E+006.0627.E-02C281.0807. E-018.2089.E-034.0724.E-018.2089.E-03C29-1.5166.E-016.0477.E-0 34.6776.E-016.0477.E-03C30-5.9813.E-02-9.4208.E-038.7965.E-01-9.4208.E-03C31-3.2071.E-011.3287.E-023.8508.E+001.3287.E-02C32- 1.0678.E-024.1068.E-028.2153.E-024.1068.E-02C337.7700.E-022.5902.E-034.5308.E-022.5902.E-03C34-9.1551.E-02-1.8167.E-031.0093 .E+00-1.8167.E-03C358.0576.E-027.2904.E-02-3.5579.E-017.2904.E -02C367.0691.E-021.0107.E-024.2992.E-011.0107.E-02C37-5.7997.E- 02-1.1845.E-022.4137.E-01-1.1845.E-02C38-1.6783.E-02-3.3773.E-033.5675.E-01-3.3773.E-03C394.6399.E-02-2.6897.E-02-3.3902.E-0 2-2.6897.E-02C40-2.0945.E-02-4.7032.E-04-1.5354.E-01-4.7032.E- 04C415.2263.E-02-1.2939.E-02-1.7009.E+00-1.2939.E-02C426.4853.E -03-5.4632.E-03-3.2364.E-01-5.4632.E-03C432.1799.E-02-1.5013.E-02-1.2343.E-01-1.5013.E-02C44-3.4521.E-034.7873.E-039.3857.E-0 14.7873.E-03C45-2.5692.E-029.9528.E-02-1.3382.E+009.9528.E-02C463.5260.E-021.5734.E-018.4885.E-011.5734.E-01C47-1.9648.E-025.2398.E-023.1734.E-015.2398.E-02C486.7681.E-02-1.3727.E-02-3.05 55.E-01-1.3727.E-02C499.9499.E-028.7122.E-03-4.1834.E-018.7122. E-03C50-2.1012.E-02-1.0894.E-021.7367.E-01-1.0894.E-02C51-3.7210.E-031.9452.E-03-4.3763.E-011.9452.E-03C523.4924.E-032.1495.E -021.4561.E-012.1495.E-02C539.2252.E-03-8.0089.E-033.7072.E-01-8.0089.E-03C546.2708.E-031.2695.E-021.3441.E-011.2695.E-02C55- 4.2789.E-037.4236.E-047.8491.E-017.4236.E-04C564.3934.E-036.2935.E-031.5604.E-016.2935.E-03C57-6.5798.E-03-1.2228.E-02-3.3401 .E-01-1.2228.E-02C581.8456.E-02-4.8244.E-033.3018.E+00-4.8244.E-03C591.7414.E-018.9595.E-02-8.2168.E+008.9595.E-02C60-9.4834. E-023.0312.E-033.3416.E-013.0312.E-03C61-2.8205.E-02-1.0280.E-02-1.3096.E-01-1.0280.E-02C62-3.6531.E-02-8.7740.E-036.0318.E-0 1-8.7740.E-03C63-9.5732.E-027.9906.E-03-1.8768.E-027.9906.E-03C641.4031.E-02-2.5999.E-033.9899.E-01-2.5999.E-03C651.2130.E-02 4.9182.E-032.2061.E-014.9182.E-03C663.4345.E-035.2516.E-044.329 0.E-015.2516.E-04C67-8.6871.E-03-5.1097.E-031.1492.E-01-5.1097.E-03C687.0992.E-043.9235.E-03-1.5401.E-013.9235.E-03C692.6587.E-03-3.9246.E-03-2 .2649.E-01-3.9246.E-03C706.1866.E-03-3.6786.E-04-1.0937.E-01-3.6786.E-04C71-1.75 33.E-03-2.0407.E-035.5760.E-02-2.0407.E-03C721.0937.E-039.0591.E-036.1338.E-019. 0591.E-03C736.8770.E-05-1.9355.E-032.1984.E-01-1.9355.E-03C74-7.9836.E-05-7.5336 .E-04-7.1854.E-02-7.5336.E-04C752.5431.E-055.1047.E-043.3195.E-015.1047.E-04C76- 5.0802.E-06-2.1012.E-04-2.9801.E-01-2.1012.E-04C773.5715.E-071.6600.E-041.5216.E -011.6600.E-04C782.3578.E-07-3.6983.E-05-1.6587.E-01-3.6983.E-05C79-9.4770.E-086 .6509.E-053.6344.E-026.6509.E-05C806.0515.E-095.1374.E-05-4.2646.E-025.1374.E-05.

[0178]

[0179] Fig. 12 is an example of lens data by the optical system and camera module of Fig. 6 according to a second embodiment of the invention, and Fig. 13 is a drawing showing a spot diagram formed on an image sensor of the optical system having the lens data of Fig. 12. The configuration of the second embodiment refers to the configuration of the prism and lenses of the first embodiment, and has different lens data from the lens data of the first embodiment, so the configuration and description of the first embodiment will be referred to.

[0180] Referring to FIG. 12 and FIGS. 1 to 6, an optical system (100) or a camera module according to a second embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) having a long length in the second direction (Y). At least one lens (L1-1) may be included between the incident sides of the first prism (P1) and the second prism (P2). At least one lens (L2-1) may be included between the incident sides of the second prism (P2) and the third prism (P3), or the optical system (100) or the camera module may be arranged without a lens. This configuration refers to the description of the first embodiment.

[0181] At least one or all of the lens surfaces of each of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), and the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface of a non-rotationally symmetric shape, for example, the fifth surface (S5 surface) and the sixth surface (S6) may have a Full-FFS (Freeform surface) that has no axis of symmetry at all within the lens surface. The incident-side transmission / total reflection surface, the multiple reflection surfaces, and the output-side transmission / total reflection surface of the second prism (P2) are free-form surfaces having a non-rotationally symmetric shape, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). At least one or all of the incident surface (S19), the reflective surface (S21), and the output-side transmission / total reflection surface (S20, S22) of the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface).

[0182] Accordingly, since each of the second and third prisms (P2, P3) has at least one non-rotationally symmetric free surface among the plurality of optical surfaces, the degradation of optical performance caused by the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has at least one non-rotationally symmetric full free surface without a symmetry axis, the resolution and optical performance in the horizontal plane direction can be improved.

[0183]

[0184] At least one or both of the incident surface (S7) and the exit surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the first lens (L1-1) may have a Full-FFS (Freeform surface). At least one or both of the incident surface (S17) and the exit surface (S18) of the second lens (L2-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). The resolution and optical performance in the horizontal plane direction can be improved by the first and second lenses (L1-1, L2-1). In addition, the non-rotational symmetry of the CRA can be removed by the second lens (L2-1) placed between the second and third prisms (P2, P3), and the CRA distribution can be corrected to be the same as that of a general optical system, and the non-rotational symmetric light quantity can also be reduced.

[0185] As in the lens data of Fig. 12, the incident light passes through the third surface (S3) to the twenty-second surface (S22) and is incident on the image sensor (10). From the fourth surface (S4) to the twenty-second surface (S22), the fifth surface (S5) around the center of each surface, i.e., in the paraxial region, may have the maximum absolute value of the radius of curvature, and the sixth surface (S6) may have the minimum radius of curvature. The radius of curvature of the sixth and seventh surfaces (S6, S7) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. The surface having the maximum radius of curvature (absolute value) in the second prism (P2) may be the second transmission / total reflection surface (TS2). In the third prism (P3), the surface having the maximum radius of curvature may be the third transmission / total reflection surface (TS3), and may be larger than the absolute value of the radius of curvature of the second transmission / total reflection surface (TS2). It can be seen that the radii of curvature (local-rx, ry) in the first and second directions in the local paraxial regions of the third surface (S3) to the twenty-second surface (S22) are different from each other. It can be seen that the focal lengths (Local-fx, fy) in the first and second directions (x, y) in the local paraxial regions of the fourth surface (S3) to the twenty-second surface (S22) are different from each other.

[0186] As shown in Table 7, the focal lengths (local_fx, local_fy) of the first prism (P1), the first lens (L1-1), the second lens (L2-1), and the third prism (P3) in the first direction (X) and the second direction (Y) are as follows. In the first prism (P1), the focal length in the first direction (X) is greater than the focal length in the second direction (Y). In the first lens (L1-1), the local focal length in the first direction (X) and the local focal length in the second direction (Y) have opposite signs. In the second lens (L2-1), the local focal length in the first direction (X) has the opposite sign to the local focal length in the second direction (Y) and is smaller than the absolute value of the local focal length in the second direction (Y). In the third prism (P3), the local focal length in the first direction (X) may be greater than the local focal length in the second direction (Y).

[0187] P1L1-1local_fxlocal_fylocal_fxlocal_fy10.7898.05542.087-27.965L2-1P3local_fxlocal_fylocal_fxlocal_fy113.017-440.472.11135.117

[0188] Since the image-forming surface of a lens or prism other than the second prism is formed outside the lens or prism, the focal length can be calculated as shown in Table 7. However, since the second prism has the strongest power and has the image-forming surface inside the prism, the focal length cannot be calculated, and therefore is not listed in Table 7. The power from the first prism (P1) to the third prism (P3) is the greatest in the second prism (P2), and the composite local focal distance (F(S3:S8)) from the first prism (P1) to the first lens (L1-1) has the same sign as the local focal distances in the first direction (X) and the second direction (Y), thereby canceling out the aberration occurring in the second prism (P2). In addition, since the composite local focal distances in the first and second directions from the first prism (P1) to the first lens (L1-1) have positive values, the second prism (P2) can be miniaturized.

[0189] As shown in Table 8, the first and second direction composite local focal lengths (F(S17:S22)) from the second lens (L2-1) to the third prism (P3) can be made to have the same sign to cancel out aberrations occurring in the second prism (P2). Here, F(S3:S8) is the composite local focal length of the object-side lens and the prism of the second prism (P2), and F(S17:S22) is the composite local focal length of the sensor-side lens and the prism of the second prism (P2).

[0190] F(S3:S8)F(S17:S22)local_fxlocal_fylocal_fxlocal_fy9.25410.64944.28439.423

[0191] When the refractive indices of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Nd1, Nd2, Nd3, Nd4, and Nd5, the following conditions can be satisfied.

[0192] Condition 1: Nd1 < Nd2 Condition 2: Nd1,Nd2 < Nd3

[0193] Condition 3: Nd5,Nd1 < Nd4

[0194] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Vd1, Vd2, Vd3, Vd4, and Vd5, the following conditions can be satisfied.

[0195] Condition 1: Vd2 < Vd1 Condition 2: Vd2,Vd3 < Vd1

[0196] Condition 3: Vd2,Vd5 < Vd4

[0197]

[0198] Fig. 13 is a spot diagram of an optical system according to a second embodiment, and it can be seen that the optical performance for, for example, nine fields is improved. The distortion in the optical system is 3% or less, and the rotational symmetry of the incident CRA of the imaging surface is ±3 degrees or less. By arranging the first to third prisms (P3) that provide a light reflection path between the object and the image sensor (10), the thickness (T) of the optical system in the third direction (Z) can be reduced. The optical system according to the second embodiment can satisfy conditional expressions 1 to 3 of the first embodiment.

[0199] Tables 9 to 12 below show the radius of curvature (R) of the conic axis of the fourth to twenty-second surfaces (S22), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80), and the dimensions (uk, m). The FFS (C10-C80) and the dimensions (uk, m) are shown in Fig. 36.

[0200] S4(HalfFSS)S5(FullFSS)S6(FullFSS)S7(HalfFSS)S8(FullFSS)R14.191-5439.2816.79911.823-244.077Nradius3.6454.9564.55811.99412.411K00000ω00000X Offset0-5.4869.E-01-4.2111.E-020-3.9146.E-02Y Offset9.1963.E-01-9.7361.E-026.9439.E-01-5.6813.E-012.5058.E+00C1005.6428.E-023.4863.E-020-3.0549.E-01 C11-3.1344.E-021.1096.E-01-1.6049.E-017.3190.E-01-1.7298.E-01C13-3.9655.E-02-1.0373.E-02-1.2643.E-01-4 .0609.E-019.2443.E-01C140-1.4018.E-02-1.1681.E-0105.2885.E-02C150-6.2769.E-03-4.9562.E-0201.5803.E-01C 163.2766.E-023.6428.E-034.0951.E-019.0484.E-011.4363.E+00C17-2.4420.E-02-3.9553.E-031.2439.E-01-6.9392 .E-011.6472.E+00C180-9.8823.E-03-3.7469.E-020-1.1294.E-01C192.9953.E-028.7328.E-032.0293.E-01-3.0424.E -02-2.6145.E+00C203.5604.E-02-3.2229.E-03-1.2446.E-01-1.9867.E-015.9509.E-01C210-1.0320.E-027.7305.E-0 205.7132.E-02C220-3.2701.E-045.6044.E-0303.4480.E-01C235.5547.E-032.7593.E-035.2466.E-02-6.3768.E-027. 9388.E-01C244.8065.E-031.6426.E-03-4.7960.E-02-9.7130.E-022.1189.E-01C25-3.4940.E-026.9498.E-037.7419.E-021.6334.E+00-7.0057.E-01C260-2.5693.E-02-1.2942.E-0102.5693 .E-01C270-2.1810.E-035.6304.E-020-1.0768.E-02C287.9912.E-03-2.5 002.E-031.0444.E-01-8.0947.E-03-1.0517.E+00C291.0378.E-035.0664.E-04-1.2742.E-03-3.4616.E-026.7002.E-01C300-2.8468.E-036.6928 .E-030-1.3776.E-02C3109.7491.E-04000C3201.5816.E-030-1.1643.E-012.1273.E-01C330-2.6207.E-0408.7892.E-02-3.1438.E-01C340-1.587 6.E-03-4.0437.E-020-4.1876.E-01C351.4991.E-02-2.5330.E-02-1.4048.E-012.4831.E+001.1139.E+00C36-6.0497.E-046.6373.E-03-1.2718. E-015.8127.E-015.3828.E-02C3703.8589.E-031.3128.E-0208.1159.E-02C3803.4272.E-03000C390-1.5604.E-030-4.9096.E-02-4.4812.E-01C4 00-6.9496.E-0404.4626.E-029.5963.E-02C4102.9612.E-03000C420-3.9689.E-04000C430-3.2028.E-040-3.9200.E-02-1.0097.E-01C4403.1570 .E-0401.3608.E-01-3.2943.E-02C45-6.1777.E-03-2.3743.E-022.3545.E-017.2694.E-02-3.3895.E+00C4602.4655.E-02-3.5032.E-020-3.4016 .E-01C4701.1767.E-02000C4803.6102.E-030-9.2803.E-01-1.1412.E-01C490-6.1475.E-0303.2832.E-012.4402.E-01C5004.5487.E-03000C5103.6711.E-04000C5201.0435.E-0302.3934.E-02-2.0193.E-01C530-1.17 96.E-0307.9900.E-02-4.6927.E-02C540-1.7631.E-04000C5505.6536. E-04000C560-5.6071.E-0405.6696.E-021.5234.E-01C5702.2963.E-04 01.3560.E-011.1009.E-01C580-6.2111.E-03000C5901.3825.E-029.29 87.E-021.9302.E+019.4587.E+00C6006.4266.E-0304.0700.E+001.421 0.E+00C610-4.9428.E-03000C620-3.3208.E-03000C6302.1862.E-040- 8.5424.E-01-6.1985.E-01C6401.6228.E-0304.4087.E-012.8845.E-01C650-1.3178.E-03000C660-6.7095.E-04000C670-3.6457.E-0409.8885.E-02-6.2024.E-02C6806.4431.E-0401.8924.E-03-1.5753.E-02C690-1.6538.E-04000C700-3.5211.E-04000C7101.7110.E-040-1.0609.E-02 1.0142.E-02C7209.5392.E-0502.7945.E-025.1133.E-02C730-4.5704.E-040-8.4650.E-03-1.2278.E-01C7401.4919.E-040-3.1528.E-02-1.5110.E-02C7503.7106.E-040-3.7243.E-025.3920.E-02C760-5.9235.E-040-2.6128.E-022.4582.E-02C7702.2566.E-0404.3130.E-03-4.5539. E-02C7802.5152.E-0402.4832.E-021.4255.E-02C790-2.9761.E-0401. 0341.E-021.0358.E-02C8009.3419.E-050-1.0224.E-02-7.7776.E-03.

[0201] S9(HalfFSS)S10(HalfFSS)S11(HalfFSS)S12(HalfFSS)S13(HalfFSS)R54.86416. 13054.86428.526-48.332Nradius14.3509.26514.35016.5648.846K00000ω00000X Offset00000Y Offset9.0442.E-02-1.5321.E+009.0442.E-02-2.5424.E+008.0882.E-01C1000000C112.3322.E+00-1.1056.E-012.3322.E+00-1.1773.E+00-2.1677.E+00C131.0822.E-01-7.9978.E-011.0822.E-01-6.8207.E-01-1.0220.E-01C1400000C1500000C1 61.3686.E+00-2.4443.E-011.3686.E+002.3528.E-012.6213.E-01C17-9.4314.E-013.7368.E-01-9.4314.E-01-5.4091.E- 01-3.8650.E-01C1800000C19-2.7618.E-01-6.2626.E-01-2.7618.E-01-1.9504.E+00-3.6756.E-01C203.3751.E-011.2239. E-013.3751.E-01-4.2146.E-01-9.1164.E-02C2100000C2200000C234.4850.E-01-8.7403.E-024.4850.E-012.1668.E-013. 3047.E-02C243.9559.E-016.8509.E-023.9559.E-01-3.7578.E-01-2.5532.E-04C25-2.2082.E+003.4365.E-01-2.2082.E+0 05.9530.E-01-3.0724.E-01C2600000C2700000C28-2.6700.E-011.7658.E-01-2.6700.E-01-5.8665.E-011.4286.E-01C29-1 .1600.E-014.7076.E-02-1.1600.E-01-1.8917.E-017.0798.E-02C3000000C3100000C3201.8498.E-0201.2499.E-011.6618.E-02C330-1.9741.E-020-9.5946.E-02-4.3469.E-02C3400000C355.7180.E-025.8820.E-025.7180.E-023.7709.E+001.4752.E-01C364.4596.E -01-7.1406.E-024.4596.E-016.1643.E-015.4360.E-02C3700000C3800000C3905.2161.E-020-2.0042.E-01-7.0169.E-03C400-2.0573.E-0202.9281.E-011.5298.E-02C4100000C4200000C4307.5557.E-0303.1838.E-03-6.7886.E-03C440-8.7832.E-030-1.6750.E-02-1.1140.E-02C45-6 .6512.E-018.5950.E-02-6.6512.E-013.7239.E+00-1.4571.E-01C4600000C4700000C480-1.9462.E-0205.1830.E-01-2.0480.E-02C4905.4960.E-0309.8684.E-023.8745.E-03C5000000C5100000C520-6.5297.E-020-6.6619.E-02-7.9919.E-03C5308.4976.E-0301.0661.E-01-3.5928.E-0 2C5400000C5500000C5604.1204.E-030-2.7588.E-02-1.3738.E-02C570 -1.3390.E-0202.6908.E-021.5516.E-02C5800000C590-1.6282.E-0105. 1471.E+00-1.4528.E-02C6009.1521.E-020-6.5019.E-011.8104.E-02C6100000C6200000C6302.5657.E-020-1.2425.E-01-1.0812.E-04C6402. 4259.E-030-9.1602.E-021.4518.E-03C6500000C6600000C6702.3027.E-0201.1614.E-015.1335.E-04C680-1.9432.E-030-2.4768.E-021.0032.E-02C6900000C7000000C710-4.0703.E-030-3.1058.E-026.1339.E-03C7209.4131.E-0302.4984.E-021.3973.E-02C7303.3752.E-0308.7848.E-03-1.6315.E-03C740-9.4314.E-030-2.1352.E-02-9.7043.E-03C7505.1731.E-030-9.6804.E-03-2 .4886.E-03C7603.3037.E-030-9.0860.E-035.1608.E-03C770-8.2002.E-030-7.0412.E-041.8207.E-03C7807.5349.E-03 01.3256.E-02-2.1674.E-03C790-3.8033.E-030-6.1548.E-03-2.5450.E-04C8006.9976.E-040-1.5441.E-033.6939.E-04.

[0202] S14(HalfFSS)S15(HalfFSS)S16(HalfFSS)S17(FullFSS)S18(FullFSS)R-913.086-19. 107-913.086-50.508-39.812Nradius32.7209.79132.7208.37813.894K00000ω00000X Offset0005.0272.E-013.4589.E-01Y Offset1.8720.E+001.8499.E-011.8720.E+001.4873.E-01-3.7678.E-01C10000-6.4813.E-022.8660.E-02C114.9060.E-01-9.6944.E-014.9060.E-015.3628.E-022.7234.E-01C13-1.1393.E+00-6.1054.E-01-1.1393.E+002.2187.E-015. 5668.E-01C140007.3623.E-021.1374.E-02C15000-1.0218.E-016.4860.E-02C16-3.1796.E+00-9.6657.E-01-3.1796. E+001.0225.E-02-4.5983.E-01C17-4.4959.E-01-1.1500.E-02-4.4959.E-011.0150.E-01-1.3925.E-01C180007.6220 .E-02-6.0276.E-02C194.4521.E+00-1.1287.E-014.4521.E+00-2.8512.E-01-3.8971.E-01C20-7.3384.E-01-1.9684.E-01-7.3384.E-011.1634.E-01-1.6027.E-01C210002.0020.E-03-1.9330.E-01C22000-4.2730.E-02-3.2720.E-03C23 8.7033.E-02-1.3759.E-018.7033.E-029.1473.E-02-1.1227.E-01C24-1.4134.E+001.4113.E-03-1.4134.E+001.9615.E-02-2.2552.E-01C252.6658.E+01-6.0965.E-012.6658.E+014.4235.E-011.1221.E-01C26000-9.6335.E-038.6802.E-02C27000-4.4030.E-03-4.2707.E-02C286.0366.E-011.4779.E-016.0 366.E-01-6.2362.E-02-1.9347.E-01C296.6221.E-01-6.3350.E-026.62 21.E-01-1.6364.E-021.6597.E-01C30000-2.8044.E-02-3.5881.E-03C310002.5297.E-03-1.6892.E-01C32-5.3402.E-011.4683.E-03-5.3402.E- 01-1.0802.E-01-1.5585.E-02C33-2.6891.E-01-1.0354.E-02-2.6891.E -01-1.2749.E-02-1.5584.E-02C340003.9240.E-017.5821.E-02C356.399 3.E+01-3.7405.E-026.3993.E+016.3572.E-03-1.4155.E-01C36-1.9697 .E+002.0235.E-01-1.9697.E+001.8847.E-01-1.2579.E-01C37000-3.454 1.E-044.3321.E-03C38000-1.3515.E-02-7.1040.E-02C395.9004.E-011 .6468.E-025.9004.E-013.1660.E-034.7807.E-02C40-4.4024.E-015.04 55.E-03-4.4024.E-01-6.9019.E-027.3901.E-02C41000-3.0314.E-02-1 .0431.E-01C420007.4080.E-024.7850.E-02C43-3.7083.E-01-4.1489.E- 03-3.7083.E-01-3.2332.E-026.3268.E-02C44-1.1992.E-018.0869.E-0 3-1.1992.E-01-1.7959.E-02-2.9101.E-02C45-1.7868.E+02-3.9794.E-0 1-1.7868.E+02-1.9468.E-01-1.1971.E-01C460002.3435.E-01-5.8059.E-02C470007.9516.E-02-4.8267.E-02C48-2.7834.E+00-6.4229.E-02-2.7834.E+001.7634.E-018.9001.E-02C491.2406.E-01-2.9447.E-021.2406.E-014.2847.E-051.6240.E-01C500001.4408.E-023.5466.E-02C51000- 3.4226.E-024.3773.E-02C524.1453.E-011.4134.E-024.1453.E-017.89 17.E-02-1.0519.E-01C53-4.9748.E-012.0974.E-03-4.9748.E-01-2.508 2.E-025.9477.E-02C540001.9231.E-02-1.9434.E-02C55000-1.1760.E-021.7441.E-01C56-2.0946.E-01-1.1774.E-02-2.0946.E-011.9388.E-02 8.1866.E-03C57-5.1718.E-02-4.4985.E-04-5.1718.E-02-6.8942.E-036.0233.E-02C58000-3.4718.E-02-1.1718.E-01C59-3.5795.E+022.7482. E-01-3.5795.E+02-8.6089.E-01-2.7069.E-02C602.7948.E+01-3.4666.E-022.7948.E+01-2.6850.E-011.1067.E-01C610003.4698.E-024.2843.E -02C62000-1.9067.E-02-9.9663.E-03C63-5.5236.E+001.3252.E-03-5.5236.E+001.3419.E-021.3950.E-01C646.1555.E-011.3001.E-026.1555. E-01-2.2519.E-027.4063.E-02C65000-1.3124.E-02-4.8107.E-02C660001.7020.E-02-5.5877.E-02C673.5171.E-01-9.6040.E-033.5171.E-01-3 .0949.E-02-1.4777.E-03C68-3.6843.E-014.2317.E-03-3.6843.E-012.3422.E-02-1.3363.E-02C69000-1.5291.E-035.5895.E-02C70000-8.8016.E-036.6862.E-02C71-7.0000.E-025.9823.E-03-7.0000.E-02-4.6098.E-03-3.9779.E-02 C724.9186.E-02-3.1408.E-034.9186.E-02-1.6847.E-021.0574.E-02C737.5912.E-021.2 476.E-037.5912.E-025.0383.E-021.3051.E-01C744.9850.E-023.2659.E-034.9850.E-02-4.4086.E-021.3058.E-01C752.2029.E-02-4.1779.E-032.2029.E-022.1666.E-027.6319. E-02C76-1.0277.E-02-2.6921.E-04-1.0277.E-02-2.3436.E-036.6794.E-02C77-2.9772. E-024.3754.E-03-2.9772.E-02-6.1503.E-033.4228.E-02C78-3.2929.E-02-4.6977.E-03 -3.2929.E-025.5339.E-032.2196.E-02C79-1.9771.E-022.5520.E-03-1.9771.E-02-2.0245.E-036.8052.E-03C804.4547.E-03-6.7822.E-044.4547.E-031.8674.E-044.4777.E-03.

[0203] S19(FullFSS)S20(FullFSS)S21(FullFSS)S22(FullFSS)R-32.2381898.428-1714.0431898.428Nradius14.81511.07631.14311.076K0000ω0000X Offset-4.2387.E-01-1.3064.E+006.2014.E-01-1.3064.E+00Y Offset1.0124.E+011.9792.E+00-2.3221.E+001.9792.E+00C10-3.7334.E-01-5.7433.E-01-2.2004.E-01-5.7433.E-01 C11-1.5615.E-016.8680.E-022.4430.E-016.8680.E-02C131.6447.E-01-8.2069.E-02-8.1342.E-01-8.2069.E-02C14- 1.0606.E-017.2593.E-021.2787.E+007.2593.E-02C153.3188.E-01-4.1284.E-03-2.9590.E+00-4.1284.E-03C164.3183.E-01-7.1183.E-02-3.9611.E-01-7.1183.E-02C174.2484.E-01-4.7958.E-025.0980.E-01-4.7958.E-02C182.8552.E -011.9406.E-012.2256.E+001.9406.E-01C19-3.3199.E-011.6769.E-012.0622.E+001.6769.E-01C20-2.7716.E-01-2.2878.E-02-8.2750.E-01-2.2878.E-02C21-4.4863.E-022.3703.E-021.1560.E+002.3703.E-02C22-1.8042.E-018.3703 .E-03-1.1011.E+008.3703.E-03C239.2185.E-022.8238.E-03-5.1071.E-022.8238.E-03C24-7.3895.E-022.4025.E-024.7730.E-012.4025.E-02C25-1.7072.E-018.7056.E-021.6135.E+008.7056.E-02C26-1.8464.E-011.1314.E-011.5303.E+001.1314.E-01C274.7882.E-025.2440.E-02-2.5272.E+005.2440.E-02C281.1995.E-01-6.1435.E-034.2767.E-01-6.1435.E-03C29-1.5224.E -015.4871.E-032.7043.E-015.4871.E-03C30-7.1350.E-02-1.1895.E-0 28.8091.E-01-1.1895.E-02C31-2.9898.E-011.2911.E-023.4969.E+001. 2911.E-02C32-1.0766.E-022.9045.E-021.0827.E-012.9045.E-02C337.8813.E-027.8356.E-031.2872.E-017.8356.E-03C34-9.4682.E-022.6417 .E-028.2178.E-012.6417.E-02C351.0377.E-014.2796.E-02-1.1076.E- 014.2796.E-02C369.2009.E-022.0636.E-023.9773.E-012.0636.E-02C37 -6.6513.E-022.1941.E-032.1411.E-012.1941.E-03C38-1.6024.E-02-1.4612.E-033.6058.E-01-1.4612.E-03C394.8270.E-02-2.4042.E-025.8 736.E-02-2.4042.E-02C40-1.9918.E-02-2.2505.E-03-1.6799.E-01-2.2505.E-03C414.0598.E-02-1.2758.E-02-1.5544.E+00-1.2758.E-02C42- 1.0721.E-02-3.2737.E-036.1738.E-02-3.2737.E-03C432.1970.E-02-1.9357.E-02-4.6561.E-02-1.9357.E-02C44-3.4276.E-032.8120.E-038.8 520.E-012.8120.E-03C452.1286.E-021.1748.E-01-1.3003.E+001.1748.E-01C463.5721.E-021.2899.E-016.4017.E-011.2899.E-01C47-2.8574.E-023.5319.E-023.2152.E-013.5319.E-02C484.5675.E-02-1.5934.E-0 2-2.0834.E-01-1.5934.E-02C491.0322.E-01-7.5211.E-03-4.1910.E-0 1-7.5211.E-03C50-1.9416.E-02-2.4787.E-021.7016.E-01-2.4787.E-02C51-5.1664.E-03-2.1841.E-03-4.5819.E-01-2.1841.E-03C522.0380.E -031.9666.E-021.7680.E-011.9666.E-02C539.0685.E-03-1.1307.E-02 3.9310.E-01-1.1307.E-02C548.3986.E-031.5202.E-023.9473.E-021.52 02.E-02C55-3.1298.E-03-1.4948.E-039.9214.E-01-1.4948.E-03C564.5124.E-031.3561.E-021.3659.E-011.3561.E-02C57-6.7381.E-03-1.051 1.E-02-1.7482.E-01-1.0511.E-02C581.8404.E-026.3444.E-032.6907.E+006.3444.E-03C591.1177.E-018.8094.E-02-7.4926.E+008.8094.E-0 2C60-1.1700.E-01-1.1557.E-023.9988.E-01-1.1557.E-02C61-1.6246.E-02-1.0749.E-02-2.0865.E-01-1.0749.E-02C62-3.0618.E-02-9.1272. E-036.0682.E-01-9.1272.E-03C63-1.0036.E-011.1489.E-029.3737.E-021.1489.E-02C641.2886.E-026.3229.E-043.3142.E-016.3229.E-04C65 9.6182.E-038.8839.E-033.0924.E-018.8839.E-03C662.6970.E-039.26 32.E-043.7409.E-019.2632.E-04C67-8.5258.E-03-3.6833.E-032.2164.E-01-3.6833.E-03C688.1853.E-044.4531.E-03-1.7562.E-014.4531.E-03C693.1340.E-03-4. 9420.E-03-2.9742.E-01-4.9420.E-03C706.5934.E-031.9416.E-041.6615.E-021.9416.E-04C 71-1.8259.E-03-4.0734.E-031.6287.E-01-4.0734.E-03C721.1427.E-039.6219.E-035.5114. E-019.6219.E-03C736.7984.E-05-4.0380.E-032.3186.E-01-4.0380.E-03C74-8.4771.E-059. 5405.E-04-1.0216.E-019.5405.E-04C752.8160.E-05-6.7026.E-042.4728.E-01-6.7026.E-04 C76-6.1201.E-064.1644.E-04-2.1380.E-014.1644.E-04C776.4758.E-071.6783.E-046.5744. E-021.6783.E-04C781.7263.E-07-1.5583.E-04-7.4935.E-02-1.5583.E-04C79-1.0179.E-071 .2295.E-043.4362.E-031.2295.E-04C801.2938.E-084.4836.E-05-1.5294.E-024.4836.E-05.

[0204]

[0205] Figures 14 to 21 are drawings illustrating an optical system and a camera module according to a third embodiment of the invention. In describing the third embodiment, reference will be made to the configuration and description of the first embodiment. The third embodiment is configured to further include a third lens (L3-1) between the third prism (P3) and the image sensor (10) in the configuration of the first embodiment.

[0206] Referring to FIGS. 14 to 20, an optical system (100A) or a camera module according to a third embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) having an incident side adjacent to the first prism (P1) and an exit side adjacent to the third prism (P3) and having a long length in the second direction (Y). At least one lens (L1-1) may be included between the incident side of the first prism (P1) and the second prism (P2). At least one lens (L2-1) may be included between the incident side of the second prism (P2) and the third prism (P3), or the third prism (P3) may be arranged without a lens. A third lens (L3-1) may be included between the third prism (P3) and the image sensor (10). A cover glass or / and an optical filter (illustrated) is placed between the third lens (L3-1) and the image sensor (30), and the cover glass or optical filter has both side surfaces (S25, S26) of FIG. 20.

[0207] At least one or all of the lens surfaces of each of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), the third prism (P3), and the third lens (L3-1) may have a free-form surface of a non-rotationally symmetrical shape. At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface of a non-rotationally symmetrical shape, and for example, may have a Full-FFS (Freeform surface) that does not have a symmetry axis within the lens surface. The incident-side transmission / total reflection surface, the plurality of reflection surfaces, and the output-side transmission / total reflection surface of the second prism (P2) are free-form surfaces having a non-rotationally symmetrical shape, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). At least one or all of the incident surface (S19), the reflective surface (S21), and the output-side transmission / total reflection surface (S20, S22) of the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface).

[0208] Accordingly, since each of the second and third prisms (P2, P3) has at least one non-rotationally symmetric free surface among the plurality of optical surfaces, the degradation of optical performance caused by the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has at least one non-rotationally symmetric full free surface without a symmetry axis, the resolution and optical performance in the horizontal plane direction can be improved.

[0209]

[0210] At least one or both of the incident side surface (S7) and the exit side surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the first lens (L1-1) may have a Full-FFS (Freeform surface). At least one or both of the incident side surface (S17) and the exit side surface (S18) of the second lens (L2-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). At least one or both of the incident side surface (S23) and the exit side surface (S24) of the third lens (L3-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the third lens (L31) may have a Full-FFS (Freeform surface). The resolution and optical performance in the horizontal plane direction can be improved by the first, second, and third lenses (L1-1, L2-1, L3-1). In addition, the non-rotational symmetry of the CRA can be removed by the second and third lenses (L2-1, L3-1), and the CRA distribution can be corrected to be the same as that of a general optical system, and the non-rotationally symmetric light quantity can also be reduced.

[0211]

[0212] As shown in FIGS. 16 to 18 and FIG. 19(a), at least one or both of the incident surface (S23) and the exit surface (S24) of the third lens (L3-1) may have a free-form surface of a non-rotationally symmetrical shape. The resolution and optical performance may be improved by the free-form surface of the third lens (L3-1). At least one or both of the free-form surfaces of the third lens (L3-1) may have a Full-FFS (Freeform surface). FIG. 19(b) illustrates the third prism.

[0213] As in the lens data of Fig. 20, the incident light passes from the third surface (S3) to the twenty-fourth surface (S24) and is incident on the image sensor (10). From the fourth surface (S4) to the twenty-fourth surface (S24), the twenty-first surface (S21), which is the reflective surface of the third prism around the center of each surface, i.e., in the paraxial region, has a maximum absolute radius of curvature, and the sixth surface (S6) on the exit side of the first prism (P1) may have a minimum radius of curvature. The radius of curvature of the sixth and seventh surfaces (S6, S7) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. The surface having the maximum radius of curvature (absolute value) in the second prism (P2) may be the second transmission / total reflection surface (TS2). In the third prism (P3), the surface having the maximum radius of curvature may be a reflective surface (S21), and may be larger than the absolute value of the radius of curvature of the second transmission / total reflection surface (TS2, S20, S22).

[0214] In the lens data of Fig. 20, it can be seen that the local curvature radii (local-rx, ry) in the first and second directions in the local paraxial regions of the fourth surface (S3) to the twenty-fourth surface (S24) are different from each other. It can be seen that the local focal lengths (Local-fx, fy) in the first and second directions (x, y) in the local paraxial regions of the fourth surface (S3) to the twenty-fourth surface (S24) are different from each other.

[0215]

[0216] As shown in Table 13, the local focal lengths (local_fx, local_fy) of the first prism (P1), the first lens (L1-1), the second lens (L2-1), and the third prism (P3) and the third lens (L3-1) in the first direction (X) and the second direction (Y) are as follows. In the first prism (P1), the focal length in the first direction (X) is greater than the local focal length in the second direction (Y). In the first lens (L1-1), the local focal length in the first direction (X) and the local focal length in the second direction (Y) have opposite signs. In the second lens (L2-1), the local focal length in the first direction (X) has the opposite sign to the local focal length in the second direction (Y) and is smaller than the absolute value of the local focal length in the second direction (Y). In the third prism (P3), the focal length in the first direction (X) may be greater than the local focal length in the second direction (Y).

[0217] P1L1-1L2-1local_fxlocal_fylocal_fxlocal_fxlocal_fxlocal_fy10.7898.055113.017113 .017113.017-440.4P3L3-1local_fxlocal_fylocal_fxlocal_fy72.11135.117-12.457-6.87

[0218] Since the image-forming surface of the lens or prism other than the second prism (P2) is formed outside the lens or prism, the focal length can be calculated as shown in Table 13. However, since the second prism has the strongest power and has the image-forming surface inside the prism, the focal length cannot be calculated, and therefore is not listed in Table 13. The power from the first prism (P1) to the third lens (L3-1) is the greatest for the second prism (P2), and the composite local focal distance (F(S3:S8)) from the first prism (P1) to the first lens (L1-1) has the same sign as the local focal distances in the first direction (X) and the second direction (Y), thereby canceling out the aberration occurring in the second prism (P2). In addition, since the composite local focal distances in the first and second directions from the first prism (P1) to the first lens (L1-1) have positive values, the second prism (P2) can be miniaturized.

[0219] As shown in Table 14, the composite local focal lengths (F(S17:S24)) in the first and second directions from the second lens (L2-1) to the third lens (L3-1) can be made to have the same sign to cancel out the aberration occurring in the second prism (P2). Here, F(S3:S8) is the composite local focal length of the object-side first lens of the second prism (P2) and the first prism, and F(S17:S24) is the composite local focal length of the sensor-side second lens of the second prism (P2), the third prism, and the added third lens. By combining the third prism and the third lens under the above conditions, it becomes possible to further enhance the optical performance of the peripheral field of view FOV and further improve the rotational symmetry of the incident CRA of the imaging surface.

[0220] F(S3:S8)F(S17:S24)local_fxlocal_fylocal_fxlocal_fy7.939.165-15.879-20.6

[0221] When the refractive indices of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), the third prism (P3), and the third lens (L3-1) are defined as Nd1, Nd2, Nd3, Nd4, Nd5, and Nd6, the following conditions can be satisfied.

[0222] Condition 1: Nd1 < Nd2 Condition 2: Nd1,Nd2 < Nd3

[0223] Condition 3: Nd5,Nd1 < Nd4 Condition 4: Nd6 < Nd1, Nd2

[0224] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second prism (P2), the second lens (L2-1), the third prism (P3), and the third lens (L3-1) are defined as Vd1, Vd2, Vd3, Vd4, Vd5, and Vd6, the following conditions can be satisfied.

[0225] Condition 1: Vd2 < Vd1 Condition 2: Vd2,Vd3 < Vd1

[0226] Condition 3: Vd2,Vd4 < Vd5 Condition 4: Vd1,Vd5 < Vd6

[0227]

[0228] Fig. 29 is a spot diagram of an optical system according to a third embodiment, and it can be seen that the optical performance for, for example, nine fields is improved. The distortion in the optical system is 3% or less, and the rotational symmetry of the incident CRA of the imaging surface is ±3 degrees or less. By arranging the first to third lenses that provide a light reflection path between the object and the image sensor (10), the thickness (T) of the optical system in the third direction (Z) can be reduced. The optical system according to the third embodiment can satisfy conditional expressions 1 to 3 of the first embodiment.

[0229] Tables 15 to 19 below show the radius of curvature (R) of the conic axis of the fourth to twenty-fourth surfaces (S24), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80), and the dimensions (uk, m). The FFS (C10-C80) and the dimensions (uk, m) are shown in Fig. 36.

[0230] S4(F-FFS)S5(H-FFS)S6(F-FFS)S7(H-FFS)S8(F-FFS)R14.263-1340.5236.0738.932221.925Nradius3.2414.4034.22111.20512.378K00000ω00000X Offset00-7.1291.E-020-7.5274.E-02Y Offset-2.8861.E+00-5.8343.E-016.9344.E-01-6.5275.E-012.6405.E+00C102.1223.E-0305.4027.E-0209.6713.E-02C1 1-3.9757.E-021.5836.E-02-1.2856.E-013.2544.E-013.5331.E-02C13-2.2304.E-02-2.0462.E-03-7.8081.E-02-4.7342 .E-011.0381.E+00C14-3.1993.E-030-1.8714.E-0205.0488.E-02C154.6136.E-030-3.1280.E-0201.2993.E-02C16-2.787 9.E-02-1.3007.E-032.9001.E-013.6474.E-011.6521.E+00C17-3.8195.E-03-7.0039.E-03-1.0072.E-01-6.3403.E-011.7 476.E+00C18-2.3659.E-0401.4883.E-020-1.1517.E-01C191.5593.E-03-1.0644.E-021.6846.E-01-9.0148.E-01-2.6360 .E+00C209.9436.E-03-7.0544.E-04-1.4179.E-01-1.8600.E-018.2400.E-01C216.2307.E-0406.1025.E-0305.7002.E-02C 222.6801.E-040-3.1119.E-0401.8807.E-03C23-5.3648.E-03-2.6312.E-047.6553.E-02-3.1393.E-018.6767.E-01C241. 7923.E-031.6877.E-031.9917.E-03-9.6559.E-022.5271.E-01C25-4.6825.E-032.2126.E-031.4697.E-012.5070.E+00-1.8047.E-01C261.4171.E-0301.6095.E-0301.5638.E-01C275.9390.E-040 -6.7058.E-030-9.5701.E-02C281.4557.E-03-1.1197.E-031.2257.E-01 -1.7040.E-01-1.1460.E+00C291.2026.E-03-1.1745.E-031.9680.E-02- 4.2287.E-024.6256.E-01C301.5761.E-040-1.6691.E-0305.4160.E-02C3 100000C3200-1.2736.E-0302.3257.E-01C33002.0967.E-030-2.9433.E- 01C34-1.1729.E-030-1.1182.E-020-2.9646.E-01C35-2.4514.E-032.688 6.E-034.0787.E-022.0865.E+007.5089.E-01C36-1.4097.E-039.0292.E -04-1.1465.E-011.1933.E+001.2303.E-01C37-6.5464.E-040-4.9864.E- 0301.6211.E-01C3800000C39001.0394.E-020-5.2247.E-01C4000-1.199 2.E-0201.1105.E-01C4100000C4200000C4300-6.3687.E-030-7.8634.E- 02C4400-1.2447.E-030-2.1153.E-02C456.7131.E-042.7187.E-033.603 1.E-02-1.5408.E+00-1.4929.E+00C461.3895.E-030-8.7591.E-0308.780 5.E-01C4700000C4800-6.4087.E-030-2.3945.E-02C4900-2.0911.E-030 2.8227.E-01C5000000C5100000C5200-7.4622.E-030-2.1116.E-01C53003 .6088.E-030-7.2599.E-02C5400000C5500000C5600006.4994.E-02C5700 009.8424.E-02C5800000C5900-5.8757.E-0304.4635.E+00C6000-2.5785.E-0302.3098.E+00C6100000C6200000C63002.0093.E-030-5.8734.E-01C6400-1.6720.E-0303.5477.E-01C6500000C6600000C670000-2.5585.E-02C680000-8.4946.E-03C6900000C7000000C7100007.9427.E-02C7200008.2863.E-03C730000-1.0572.E-01C740000-2.9510.E-02C7500007.8521.E-02C7600002.3013.E-02C770000-4.0871.E-02C780000-2.6353.E-03C7900001.9653.E-02C800000-6.3138.E-03.

[0231] S9(H-FFS)S10(H-FFS)S11(H-FFS)S12(H-FFS)S13(H-FFS)R68.23417.50568 .23428.416-54.717Nradius13.9008.72213.90016.2288.528K00000ω00000X Offset00000Y Offset9.8486.E-03-1.4521.E+009.8486.E-03-2.5609.E+008.1492.E-01C1000000C112.2994.E+00-2.0645.E-012.2994.E+00-1.1924.E+00-2.0930.E+00C13-8.4034.E-02-8.5436.E-01-8.4034.E-02-6.9785.E-01-1.1019.E-01C1400000C1500000C16 1.3607.E+00-3.1963.E-011.3607.E+006.8002.E-012.2395.E-01C17-1.1463.E+003.7089.E-01-1.1463.E+00-5.5306.E-01- 3.8499.E-01C1800000C196.8756.E-02-6.9027.E-016.8756.E-02-2.0286.E+00-3.1656.E-01C202.4094.E-011.1731.E-012. 4094.E-01-4.3159.E-01-8.8498.E-02C2100000C2200000C234.8821.E-01-1.0163.E-014.8821.E-013.6158.E-013.2555.E-0 2C242.9518.E-018.5901.E-022.9518.E-01-3.8514.E-01-2.5035.E-04C25-2.1310.E+001.9789.E-01-2.1310.E+008.6578.E -01-1.9917.E-01C2600000C2700000C28-1.1415.E-011.1943.E-01-1.1415.E-01-6.1742.E-011.4993.E-01C29-1.8597.E-01 5.7598.E-02-1.8597.E-01-2.0041.E-017.8136.E-02C3000000C3100000C3202.5734.E-0201.3378.E-011.5011.E-03C330-1.7180.E-020-4.6018.E-02-4.5461.E-02C3400000C352.7724.E-011.0562.E-022.7724.E-014.7889.E+001.3123.E-01C364.8730.E-01-1.5269.E- 014.8730.E-014.7486.E-015.8899.E-02C3700000C3800000C3902.1498.E-020-2.1755.E-01-9.0949.E-03C400-2.5920.E-0202.7698.E-01-2.302 6.E-03C4100000C4200000C4303.6674.E-0208.4435.E-03-6.3989.E-03C440-1.8576.E-0203.0011.E-03-9.5104.E-03C45-5.3109.E-011.0037.E- 01-5.3109.E-011.2983.E+001.8569.E-01C4600000C4700000C480-5.5890.E-0307.8137.E-011.7636.E-03C490-2.1211.E-0201.6653.E-01-1.058 3.E-03C5000000C5100000C520-2.7508.E-020-8.1096.E-02-1.0495.E-0 2C530-2.7015.E-0301.1078.E-01-2.1565.E-02C5400000C5500000C560- 4.5319.E-030-2.0743.E-02-5.0797.E-03C570-1.5714.E-0202.8674.E- 021.8429.E-02C5800000C590-2.1030.E-0202.9088.E+001.0795.E-01C60 0-1.7345.E-020-1.0092.E+00-2.5686.E-02C6100000C6200000C6304.8866.E-020-7.6279.E-02-3.6713.E-03C6401.9227.E-020-3.2640.E-026.4 542.E-04C6500000C6600000C6701.5501.E-0201.0946.E-012.3890.E-03 C680-2.9679.E-030-2.6929.E-026.7127.E-03C6900000C7000000C710-2.5740.E-030-1.9326.E-023.2140.E-03C7207.2748.E-0302.9021.E-021.4818.E-02C7304.6603.E-0301.0738.E-02-4.0938.E-03C740-1.0586.E-020-2.1004.E-02-1.1221.E-02C7505.5021.E-030-1.1716.E-02-1.5932.E-03C76 04.6688.E-030-1.3045.E-026.0362.E-03C770-9.8903.E-0301.0519.E-022.9612.E-03C7808.3788.E-0309.0898 .E-03-3.5155.E-03C790-4.3304.E-030-1.0001.E-02-7.3081.E-04C8009.5300.E-0401.5041.E-039.0423.E-04.

[0232] S14(H-FFS)S15(H-FFS)S16(H-FFS)S17(F-FFS)S18(F-FFS)R-19189.451-18.653-1 9189.451-52.860-41.267Nradius32.6009.74832.6006.68315.082K00000ω00000X Offset0006.2883.E-026.9879.E-02Y Offset1.9459.E+008.2015.E-021.9459.E+00-2.8640.E-01-4.2375.E-01C100003.6241.E-06-1.6559.E-02C113.3466.E-01-9.9869.E-013.3466.E-01-5.1005.E-027.5942.E-02C13-1.0960.E+00-6.1481.E-01-1.0960.E+006.4258.E-02-2. 2655.E-01C140001.6376.E-025.9183.E-02C15000-2.0172.E-032.7498.E-02C16-3.3042.E+00-9.8246.E-01-3.3042.E+ 00-3.7195.E-02-1.2944.E-01C17-5.1383.E-01-2.8749.E-03-5.1383.E-01-5.9249.E-02-1.4878.E-02C180001.7881.E -023.6170.E-02C194.5025.E+00-1.2937.E-014.5025.E+001.4513.E-031.7915.E-01C20-7.2720.E-01-1.9694.E-01-7.2720.E-012.3748.E-02-9.6716.E-02C21000-8.6984.E-039.6143.E-02C220001.1636.E-022.8589.E-02C232.8048.E-02 -1.4183.E-012.8048.E-02-3.8325.E-02-1.0772.E-01C24-1.4381.E+00-1.5535.E-03-1.4381.E+00-1.7535.E-022.5299.E-03C252.5438.E+01-5.9710.E-012.5438.E+012.3216.E-021.5642.E-01C260001.4025.E-02-2.1469.E-02C27000-1.2119.E-035.9583.E-02C286.1896.E-011.3747.E-016.1896.E-01-5.6010.E-034.4266.E-02C296.7592.E-01-6.4062.E-026.7592.E-01-1.6187. E-04-4.1108.E-02C30000-1.2784.E-02-1.5017.E-03C310002.5998.E-029.2727.E-02C32-5.7321.E-013.1792.E-03-5.7321.E-01-1.7756.E-02- 1.3001.E-02C33-2.9162.E-01-1.2564.E-02-2.9162.E-01-4.1281.E-034.2830.E-02C34000-2.6147.E-022.6855.E-03C35-4.7345.E+00-4.2932. E-02-4.7345.E+00-3.6167.E-02-1.2701.E-01C36-2.3471.E+002.1212.E-01-2.3471.E+00-2.6202.E-03-1.8667.E-03C370002.0611.E-02-2.490 3.E-02C38000-1.7973.E-033.3566.E-03C396.0789.E-019.6865.E-036. 0789.E-01-1.7238.E-021.0972.E-02C40-4.3219.E-013.6471.E-03-4.32 19.E-012.1919.E-03-5.0792.E-02C41000-5.1081.E-03-1.1879.E-02C4 20001.0440.E-025.1593.E-02C43-3.9586.E-012.8814.E-04-3.9586.E-0 14.2621.E-048.9022.E-03C44-1.4002.E-018.5697.E-03-1.4002.E-01-2.3983.E-038.6987.E-03C458.7649.E+01-4.3871.E-018.7649.E+01-2.8 938.E-03-7.9846.E-02C460001.7386.E-02-5.2754.E-02C470009.3146.E-03-7.6573.E-03C48-3.1509.E+00-6.8128.E-02-3.1509.E+00-2.3501.E-024.5736.E-02C49-2.2868.E-02-2.5667.E-02-2.2868.E-02-2.1448.E-02-5.9339.E-03C500001.7314.E-025.9723.E-03C510008.0878.E-035 .7701.E-04C524.2643.E-019.2272.E-034.2643.E-01-3.6534.E-032.07 88.E-02C53-4.9538.E-011.5189.E-03-4.9538.E-01-5.5265.E-04-1.229 8.E-02C540006.1038.E-03-2.6441.E-02C55000-6.7876.E-03-1.3873.E-03C56-2.2904.E-01-9.2484.E-03-2.2904.E-01-8.9217.E-032.1964.E- 02C57-6.7306.E-021.0114.E-03-6.7306.E-02-6.1395.E-03-2.8289.E-02C580003.3074.E-02-1.4652.E-01C598.2471.E+012.6473.E-018.2471. E+01-8.6245.E-021.9259.E-02C604.2091.E+01-5.0133.E-024.2091.E+01-7.4261.E-051.0471.E-01C610001.4434.E-03-1.1200.E-02C620003.5 501.E-031.9424.E-02C63-5.6402.E+00-1.1923.E-02-5.6402.E+00-2.0926.E-021.7210.E-02C645.2721.E-011.3959.E-025.2721.E-018.4829.E -03-6.8781.E-03C65000-7.9314.E-032.4077.E-03C66000-1.8448.E-031.1512.E-02C673.4734.E-01-7.5204.E-033.4734.E-01-8.4540.E-049.8 659.E-03C68-3.7043.E-014.9002.E-03-3.7043.E-01-1.0382.E-03-1.0420.E-03C69000-1.8347.E-03-2.0839.E-02C70000-1.1399.E-033.1638.E-02C71-8.7916.E-028.2028.E-03-8.7916.E-022.0737.E-03-3.7088.E-03C724.3074.E-02-4.2997.E-034.3074.E-021.4637.E-03-1.8598.E-02C737.7257.E-021.5182.E-037. 7257.E-02-2.3457.E-043.2840.E-02C745.4147.E-023.1658.E-035.4147.E-022.1688.E-042.5172.E-02C752.7082.E-02-4.4030.E-032.7082.E-02-1.5858.E-045.6239.E-05C7 6-5.6418.E-032.4929.E-04-5.6418.E-039.1177.E-05-3.3566.E-03C77-2.7813.E-023.5790.E-03-2.7813.E-024.4612.E-05-1.1780.E-03C78-3.1138.E-02-4.0002.E-03-3.11 38.E-02-1.9930.E-04-8.1150.E-03C79-1.7553.E-022.1745.E-03-1.7553.E-021.0831.E-042.4319.E-03C809.1209.E-03-5.7553.E-049.1209.E-03-3.6897.E-05-4.5687.E-03.

[0233] S19(F-FFS)S20(F-FFS)S21(F-FFS)R-29.446621.07688070.292Nradius14.84010.79731.847K000ω000X Offset-2.2050.E-01-3.5056.E-014.1263.E-01Y Offset9.9430.E+006.0806.E-01-6.9396.E-01C10-5.8715.E-01-1.6779.E-01-2.7768.E-01C11-3.2624.E-011.0887.E-01-5.5654.E-02C13-2.0551.E-01-5.7246.E-02-1.2379.E-01C141.0127.E-011.1144.E-017.7383.E-02C157.2207.E-029.9680.E-02 -2.5855.E-01C168.6714.E-013.2168.E-022.0530.E-01C175.3280.E-01-5.8510.E-03-1.8291.E-01C183.7155.E-029.4544.E-021.4714.E-02C19-1.1477.E-018.4026.E-021.4056.E-01C20-3.5221.E-01-2.4373.E-022.9573.E-02C21-8.9321.E-032.145 6.E-02-1.5498.E-01C22-6.5633.E-027.3654.E-03-8.3824.E-01C231.1287.E-011.2706.E-031.2780.E-01C24-3.2004.E-023.6867.E-03-2.5695.E-01C251.8369.E-027.4554.E-035.3066.E-02C26-1.7574.E-025.7356.E-03-1.2948.E-01C27-1.3614.E- 023.6380.E-02-5.5537.E-01C281.7986.E-013.7244.E-022.6750.E-02C29-6.3952.E-02-1.4793.E-032.3811.E-01C308.9712 .E-03-1.3492.E-023.9170.E-01C31-6.2427.E-02-6.5904.E-032.1087.E+00C32-4.0663.E-026.2499.E-03-2.2354.E-02C336.2723.E-028.7441.E-03-1.1328.E-02C34-8.3090.E-03-2.4336.E-02-3.9549.E-01C35-2.3383.E-028.8558.E-021.7493.E-01C361.4052.E-01-1 .4048.E-027.2208.E-02C37-4.3932.E-04-5.0586.E-036.8951.E-01C38-5.9811.E-03-1.5252.E-039.5691.E-02C397.2285.E-021.3484.E-02-1. 0373.E-01C40-8.2128.E-031.0073.E-03-1.7402.E-02C412.1829.E-02-1.0631.E-02-1.2217.E+00C421.0754.E-021.9537.E-062.2053.E-01C431 .5246.E-027.7601.E-039.3662.E-02C444.4808.E-039.0457.E-04-3.6355.E-01C45-6.3708.E-028.1624.E-025.8096.E-01C464.2390.E-033.748 3.E-027.1379.E-01C47-5.6523.E-03-1.8367.E-026.2632.E-01C484.4353.E-022.9851.E-02-1.0220.E-01C491.1550.E-011.9011.E-03-2.4111. E-02C501.9921.E-03-9.2390.E-031.7698.E-01C51-1.3820.E-04-6.071 0.E-03-6.0532.E-01C521.5396.E-033.7405.E-034.7962.E-02C536.9061 .E-03-8.5764.E-03-4.7625.E-02C54-7.6574.E-047.4129.E-03-2.6698.E-01C55-1.6412.E-023.3449.E-03-6.2129.E-01C567.8404.E-036.4571 .E-05-1.1038.E-01C57-8.3527.E-03-3.6833.E-036.6169.E-03C584.12 20.E-03-1.1949.E-021.0141.E+00C598.5198.E-021.6054.E-02-1.1766.E+00C60-1.2502.E-01-3.4160.E-02-8.9746.E-02C614.3345.E-031.2134.E-02-4.2819.E-01C62-6.4750.E-033.3309.E-033.8911.E-01C63-9.2503.E-02-6.5170.E-03-3.0517.E-02C642.3835.E-02-3.6099.E-031.2367.E-01C659. 0821.E-035.9588.E-034.9091.E-01C663.7283.E-031.1223.E-031.2796.E-02C67-1.2326.E-02-2.4374.E-03-1.1822.E-01C681.3351.E-062.2397.E-03-1.0695.E-02C691.6902.E-03-4.2668.E-04-3.6776.E-01C70-2.7062.E-03-1 .4874.E-03-3.3972.E-01C71-1.2945.E-03-8.8939.E-04-3.1575.E-02C722.6361.E-044.3533.E-031.3733.E-02C734.6570.E-04-2.6060.E-031.0686.E-01C74-1.1130.E-047.5276.E-04-6.3993.E-02C751.5442.E-057.1127.E-05- 9.5439.E-02C764.5400.E-06-7.2355.E-04-2.9186.E-02C77-4.1536.E-061.0717.E-03-5.8034.E-03C781.5236.E- 06-8.2256.E-044.1720.E-02C79-2.3310.E-072.9119.E-041.8290.E-02C80-2.0162.E-073.5460.E-051.4605.E-02.

[0234] S22(F-FFS)S23(F-FFS)S24(F-FFS)R621.07676.563170.810Nradius10.7978.2608.180K0.0000.0000.000꺰0.0000.0000.000X Offset-3.5056.E-01-1.4141.E-01-3.5273.E-01Y Offset6.0806.E-016.9029.E-01-2.6083.E-01C10-1.6779.E-01-3.0899.E-01-9.1120.E-01C111.0887.E-012.2129.E-01- 4.4487.E-01C13-5.7246.E-026.0905.E-01-4.1979.E-01C141.1144.E-01-8.4207.E-012.0502.E-02C159.9680.E-02-5.590 0.E-01-5.3006.E-01C163.2168.E-023.9334.E-01-2.5089.E-03C17-5.8510.E-031.3781.E+002.7960.E-01C189.4544.E-02-6.4548.E-013.4766.E-01C198.4026.E-02-4.8213.E-016.2594.E-01C20-2.4373.E-028.4020.E-018.0994.E-01C212.1456 .E-022.1762.E-011.9066.E-01C227.3654.E-03-2.9850.E-016.2096.E-01C231.2706.E-034.3846.E-01-8.9276.E-01C243.6867.E-03-8.3557.E-02-2.4152.E-01C257.4554.E-03-5.6090.E-02-1.9361.E+00C265.7356.E-03-9.3578.E-01-3.5338.E -01C273.6380.E-022.6572.E-01-1.0346.E+00C283.7244.E-02-7.2490.E-01-5.5741.E-01C29-1.4793.E-039.4337.E-017. 1985.E-01C30-1.3492.E-022.3635.E-01-4.6467.E-02C31-6.5904.E-035.7772.E-012.4509.E-01C326.2499.E-03-5.0283.E-01-1.8675.E+00C338.7441.E-03-1.2778.E+00-1.1460.E+00C34-2.4336.E-02-4.0310.E-01-2.7286.E-01C358.8558.E-025.6733.E-01-1.816 6.E-01C36-1.4048.E-02-1.2342.E+002.0728.E+00C37-5.0586.E-035.7062.E-011.0292.E+00C38-1.5252.E-03-3.8668.E-015.4559.E-01C391. 3484.E-02-1.6534.E-02-1.1236.E+00C401.0073.E-03-2.0720.E-01-1.8369.E+00C41-1.0631.E-02-4.0587.E-01-3.2249.E-01C421.9537.E-06 5.8850.E-01-5.4137.E-01C437.7601.E-03-9.3465.E-01-3.0847.E-01C449.0457.E-041.5411.E-011.0552.E+00C458.1624.E-021.7189.E+00-5 .2361.E-01C463.7483.E-02-7.3863.E-017.3029.E-02C47-1.8367.E-02-4.1617.E-015.2435.E-02C482.9851.E-02-8.4092.E-01-1.0658.E+00C 491.9011.E-034.6279.E-01-5.6470.E-02C50-9.2390.E-03-1.5976.E-01-7.6869.E-01C51-6.0710.E-031.2531.E-01-5.8113.E-02C523.7405.E -035.5053.E-011.4666.E+00C53-8.5764.E-03-9.4323.E-017.8343.E-01C547.4129.E-03-1.2908.E-013.4396.E-01C553.3449.E-03-9.5017.E- 014.5236.E-01C566.4571.E-05-1.3351.E-01-1.8319.E+00C57-3.6833.E-03-2.0886.E-01-1.2255.E-01C58-1.1949.E-02-4.4410.E-01-2.5351.E-01C591.6054.E-02-1.1105.E+004.2857.E-01C60-3.4160.E-02-1.0620.E-02-1.8047.E-01C611.2134.E-024.0986.E-01-8.4109.E-02C623.3309.E-031.5531.E-022.4535.E-02C63-6.5170.E-031.3896.E-01-2.2699.E-02C64-3.6099.E-03 -4.1246.E-01-5.0463.E-01C655.9588.E-031.7429.E-013.3680.E-01C661.1223.E-032.7446.E-015.6181.E-02C67-2.4 374.E-03-7.1745.E-01-2.1397.E+00C682.2397.E-03-4.8409.E-02-6.6408.E-01C69-4.2668.E-044.1256.E-01-2.3238 .E-01C70-1.4874.E-036.7041.E-012.7614.E-01C71-8.8939.E-04-9.6007.E-011.2209.E-02C724.3533.E-03-2.7388.E-01-9.6587.E-01C73-2.6060.E-032.9069.E-021.1480.E+00C747.5276.E-04-3.8895.E-019.9860.E-02C757.1127.E-05 5.1766.E-012.1833.E-01C76-7.2355.E-042.0070.E-024.5552.E-02C771.0717.E-031.1912.E-01-6.4790.E-01C78-8.2256.E-042.0130.E-017.4508.E-01C792.9119.E-041.2656.E-025.6091.E-03C803.5460.E-051.6472.E-01-3.2963.E-01.

[0235]

[0236] FIGS. 22 to 29 are drawings explaining an optical system and a camera module according to a fourth embodiment of the invention. In the configuration of the fourth embodiment, the prisms and lenses of the first embodiment and their configuration will refer to the configuration and description of the first embodiment, and the first-first lens (L1-1) and the first-second lens (L1-2) are arranged between the first and second prisms (P1, P2), and the second lens (L2-1) is arranged between the second prism (P2) and the third prism (P3). In the fourth embodiment, the basic configuration of the first embodiment will refer to the configuration and description of the first embodiment, and the single first lens is changed to a two-lens configuration of the first-first lens and the first-second lens, and the third prism with two reflections including total reflection (TS3) is changed to a third prism with one reflection that does not use total reflection.

[0237] Referring to FIGS. 22 to 28, an optical system (100B) or a camera module according to a fourth embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) having an incident side adjacent to the first prism (P1) and an exit side adjacent to the third prism (P3) and having a long length in the second direction (Y). A plurality of lenses (L1-1, L1-2) may be included between the incident sides of the first prism (P1) and the second prism (P2). At least one second lens (L2-1) may be included between the incident sides of the second prism (P2) and the third prism (P3), or no lens may be present. A third lens may be provided between the third prism (P3) and the image sensor (10), or no third lens may be present. The plurality of lenses include an object-side first-first lens (L1-1) and a sensor-side twelfth lens (L1-2). In addition, at least one or all of the lens surfaces of each of the first prism (P1), the first-first lens (L1-1), the first-second lens (L1-2), the second prism (P2), the second lens (L2-1), and the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface of a non-rotationally symmetric shape, for example, may have a Full-FFS (Freeform surface).

[0238] The second prism (P2) includes an incident-side transmission / total reflection surface, a plurality of reflection surfaces, and an exit-side transmission / total reflection surface, and the optical surfaces (S11-S18) of the second prism (P2) are free-form surfaces having a non-rotationally symmetric shape, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). At least one or all of the incident surface (S21), the reflection surface (S22), and the exit-side surface (S23) of the third prism (P3) may have a non-rotationally symmetric free-form surface. At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface). Accordingly, since each of the second and third prisms (P2, P3) has at least one non-rotationally symmetric free-form surface among the plurality of optical surfaces, the degradation of optical performance due to the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has at least one non-rotationally symmetric full free-form surface without a symmetry axis, the resolution and optical performance in the horizontal plane direction can be increased. As another example, the third prism (P3) can reflect incident light toward an object, and the image sensor (10) arranged on the exit side of the third prism (P3) can be arranged closer to the object than the third prism (P3).

[0239]

[0240] At least one or both of the lens surfaces (S7 to S9) of the first-first lens (L1-1) and the first-second lens (L1-2) may have a free-form surface of a non-rotationally symmetrical shape. At least one or both of the free-form surfaces of the first-first lens (L1-1) and the first-second lens (L1-2) may have a Full-FFS (Freeform surface). At least one or both of the incident-side surface (S19) and the exit-side surface (S20) of the second lens (L2-1) may have a free-form surface of a non-rotationally symmetrical shape. At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). The resolution and optical performance in the horizontal plane direction can be improved by the first-first, first-second, and second lenses (L1-1, L1-2, L2-1). In addition, the non-rotational symmetry of the CRA can be removed by the second lens (L2-1) placed between the second and third prisms (P2, P3), and the CRA distribution can be corrected to be the same as that of a general optical system, and the non-rotational symmetric light quantity can also be reduced.

[0241] As shown in FIGS. 22 to 26 and FIG. 27(b), at least one or both of the incident side surface (S9) and the exit side surface (S10) of the first-second lens (L1-2) may have a free-form surface of a non-rotationally symmetrical shape. The resolution and optical performance may be improved by the free-form surface of the first-second lens (L1-2). At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). FIG. 27(a) illustrates the first-first lens (L1-1), FIG. 27(c) illustrates the second lens (L2-1), and FIG. 27(d) illustrates the third prism (P3). The third prism (P3) may be provided without the total reflection surface or the transmission / total reflection surface disclosed in the first, second, and third embodiments.

[0242] As in the lens data of Fig. 28, the incident light passes through the third surface (S3) to the twenty-third surface (S23) and is incident on the image sensor (10). From the fourth surface (S4) to the twenty-third surface (S23), the fifth surface (S5) around the center of each surface, i.e., in the paraxial region, may have the maximum absolute value of the radius of curvature, and the sixth surface (S6) may have the minimum radius of curvature. The radius of curvature of the sixth and seventh surfaces (S6, S7) may be 100 mm or less, for example, 80 mm or less. The radius of curvature of the eighth and ninth surfaces (S8, S9) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. In the second prism (P2), the surface having the maximum radius of curvature (absolute value) may be the second transmission / total reflection surface (TS2: S16, S18). In the third prism (P3), the surface having the maximum radius of curvature may be the incident surface (S21), and may be larger than the absolute value of the radius of curvature of the second transmission / total reflection surface (TS2). The exit-side surface (S20) of the second lens (L2-1) may be at least 10 times larger than the absolute value of the radius of curvature of the incident-side surface (S19). It can be seen that the radii of curvature (local-rx, ry) in the first and second directions in the local paraxial regions of the fourth surface (S4) to the twenty-third surface (S23) are different from each other. It can be seen that the local focal lengths (Local-fx, fy) in the first and second directions (x, y) in the local paraxial regions of the fourth surface (S4) to the twenty-third surface (S22) are different from each other.

[0243]

[0244] As shown in Table 20, the local focal lengths (local_fx, local_fy) of the first prism (P1), the first-first lens (L1-1), the first-second lens (L1-2), the third prism (P3), and the second lens (L2-1) in the first direction (X) and the second direction (Y) are as follows. In the first prism (P1), the focal length in the first direction (X) is greater than the local focal length in the second direction (Y). In the first-first lens (L1-1), the local focal length in the first direction (X) and the local focal length in the second direction (Y) have opposite signs. In the first-second lens (L1-2), the local focal length in the first direction (X) and the local focal length in the second direction (Y) have opposite signs. In the second lens (L2-1), the local focal length in the first direction (X) has an opposite sign to the local focal length in the second direction (Y) and is smaller than the absolute value of the local focal length in the second direction (Y). In the third prism (P3), the local focal length in the first direction (X) may be larger than the absolute value of the local focal length in the second direction (Y).

[0245] P1L1-1L1-2local_fxlocal_fylocal_fxlocal_fylocal_fxlocal_fy12.6769.618154.71822.2 28113.017-440.4L2-1P3local_fxlocal_fylocal_fxlocal_fy24.762184.874-12.664-24.272

[0246] For lenses or prisms other than the second prism (P2), the focal length can be calculated as shown in Table 20 because the image-forming surface is formed outside the lens or prism. However, since the second prism has the strongest power and has the image-forming surface inside the prism, the focal length cannot be calculated, and therefore, it is not listed in Table 20.

[0247] The power from the first prism (P1) to the second lens (L2-1) is the largest at the second prism (P2), and the composite local focal distance (F(S3:S10)) from the first prism (P1) to the first-second lens (L1-2) has the same sign as the local focal distances in the first direction (X) and the second direction (Y), thereby canceling out the aberration occurring at the second prism (P2). In addition, since the composite local focal distances in the first and second directions from the first prism (P1) to the first-second lens (L1-2) have positive values, the second prism (P2) can be miniaturized.

[0248] As shown in Table 21, the first and second direction composite local focal lengths (F(S19:S23)) from the second lens (L2-1) to the third prism (P3) have the same sign, thereby canceling out aberrations occurring in the second prism (P2). Here, F(S3:S10) is the composite local focal length of the object-side lens of the second prism (P2) and the first prism, and F(S19:S23) is the composite local focal length of the sensor-side third lens of the second prism (P2) and the prism.

[0249] F(S3:S10)F(S19:S23)local_fxlocal_fylocal_fxlocal_fy7.55212.777-97.854-29.351

[0250] When the refractive indices of the first prism (P1), the first-first lens (L1-1), the first-second lens (L1-2), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Nd1, Nd2, Nd3, Nd4, Nd5, and Nd6, the following conditions can be satisfied.

[0251] Condition 1: Nd1,Nd2 < Nd3 Condition 2: Nd3 < Nd4

[0252] Condition 3: Nd5 < Nd3 Condition 4: Nd6 < Nd3

[0253] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second lens (L1-2), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Vd1, Vd2, Vd3, Vd4, Vd5, and Vd6, the following conditions can be satisfied.

[0254] Condition 1: Vd2 < Vd1 Condition 2: Vd3,Vd4 < Vd2

[0255] Condition 3: Vd4 < Vd5 Condition 4: Vd4 < Vd6

[0256] By arranging first to third prisms (P3) that provide a light reflection path between the object and the image sensor (10), the thickness (T) of the optical system in the third direction (Z) can be reduced. The optical system according to the fourth embodiment can satisfy conditional expressions 1 to 3 of the first embodiment.

[0257] Fig. 29 is a spot diagram of an optical system according to the fourth embodiment, and it can be seen that the optical performance for, for example, nine fields is improved. The distortion in the optical system is less than 3%, and the rotational symmetry of the incident CRA of the imaging surface is less than ±3 degrees.

[0258]

[0259] Tables 22 to 25 below show the radius of curvature (R) of the conic axis of the fourth to twenty-fourth surfaces (S24), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80), and the dimensions (uk, m). The FFS (C10-C80) and the dimensions (uk, m) are shown in Fig. 36.

[0260] S4(F-FFS)S5(F-FFS)S6(F-FFS)S7(F-FFS)S8(F-FFS)R15.343-1300.3717.28260.97421.552Nradius3.6094. 4314.2714.9604.806K-3.569649.44970.042919.76772.7663ω19.6174-3.0240-307.9240533.899821.0804X Offset3.5084.E-020-2.1283.E-02-1.1026.E-02-3.5974.E-03Y Offset1.8513.E-01-1.1512.E+005.4124.E-01-1.2101.E-01-7.1998.E-02C10-9.4537.E-02-4.1394.E-026.8 090.E-026.6088.E-021.3919.E-01C111.3619.E-01-2.5046.E-02-3.8191.E-011.4012.E-01-1.7662.E-01C13- 3.5366.E-01-2.0107.E-02-2.1614.E-01-1.5301.E-01-6.9269.E-02C149.9262.E-03-6.4663.E-035.2914.E-0 29.0698.E-02-7.1384.E-02C15-2.7326.E-02-9.0772.E-031.0767.E-011.0252.E-015.5307.E-02C16-3.4163. E-03-1.5273.E-024.1554.E-01-8.8268.E-023.4287.E-01C178.1487.E-021.0132.E-02-1.0274.E-011.3513. E-015.4023.E-02C185.3164.E-031.4342.E-036.7468.E-02-7.8594.E-023.6237.E-02C191.2881.E-021.1781. E-02-8.6198.E-03-1.2794.E-01-8.6492.E-02C205.7076.E-02-6.5229.E-03-8.1871.E-02-1.8460.E-01-1.50 14.E-01C21-1.9063.E-02-3.8294.E-03-1.9004.E-033.2513.E-031.2994.E-03C222.3912.E-027.7230.E-042.5962.E-02-3.0813.E-032.3397.E-02C23-5.1117.E-03-3.0861.E-038.4 509.E-02-1.4418.E-021.7743.E-02C24-2.3663.E-034.8122.E-041.5263 .E-021.0203.E-023.6876.E-02C25-4.4296.E-02-1.0430.E-025.2607.E -02-7.3293.E-02-4.2186.E-02C267.3652.E-03-1.2617.E-02-1.2442.E- 01-6.0969.E-026.5494.E-03C27-1.7644.E-02-5.2130.E-03-7.0778.E-02-6.1382.E-02-5.5559.E-02C28-1.1378.E-02-1.0259.E-03-2.6584.E- 022.4945.E-02-1.4191.E-01C29-2.0447.E-037.1038.E-043.2696.E-02-7.9274.E-02-1.7820.E-01C30-1.5797.E-03-1.5580.E-04-9.1172.E-03 -2.9113.E-02-7.4568.E-03C31-8.7452.E-035.3167.E-041.9832.E-025.1434.E-03-3.9232.E-02C321.0674.E-036.8517.E-04-1.5627.E-021.49 81.E-024.3934.E-02C33-1.8650.E-03-2.1670.E-032.6868.E-02-7.615 3.E-03-1.5002.E-02C341.3431.E-022.2401.E-042.6091.E-02-3.9127.E -02-9.0140.E-02C35-3.5452.E-037.4864.E-049.5270.E-02-1.0769.E- 01-6.3198.E-02C363.5700.E-035.8651.E-03-9.9615.E-02-3.1645.E-02 1.5412.E-01C374.6743.E-031.5767.E-032.4070.E-022.4596.E-03-1.4469.E-01C385.7552.E-032.9893.E-03-2.8210.E-02-3.9672.E-021.6280.E-03C39-1.2507.E-03-1.4969.E-04-2.4251.E-024.9855.E-03-5.0881.E-02C40-8.5848.E-042.7560.E-03-1.2450.E-02-3.0232.E-02-7.5874.E -02C414.7362.E-042.0978.E-04-2.0198.E-02-1.4996.E-02-2.0652.E-02C421.9540.E-03-2.0146.E-04-1.2784.E-03-1.8523.E-033.5047.E-04 C431.4499.E-04-3.4880.E-04-2.3212.E-023.4578.E-033.0775.E-02C445.1969.E-041.2138.E-03-2.2503.E-02-5.3875.E-034.1302.E-03C45-2 .3773.E-031.4158.E-03-7.0252.E-021.0926.E-012.4326.E-01C46-4.5 808.E-033.0447.E-03-4.2817.E-0200C47-5.7198.E-031.2301.E-03-1.2 031.E-02-8.7298.E-022.5873.E-02C482.4148.E-039.1079.E-04-1.658 5.E-022.1420.E-024.8240.E-02C491.8506.E-03-2.9858.E-041.0512.E- 026.5650.E-02-3.3575.E-02C50-3.3464.E-044.9227.E-04-1.8360.E-03-4.9826.E-023.8931.E-03C51-1.0065.E-03-1.2238.E-03-3.4706.E-03 -3.7837.E-038.4106.E-03C525.6680.E-045.7739.E-04-1.5390.E-03-2.9879.E-023.2566.E-02C53-8.3863.E-05-1.7553.E-03-2.2971.E-02-7. 8981.E-032.6514.E-02C548.7865.E-05-6.6076.E-057.9316.E-03-6.47 90.E-031.9419.E-02C55-4.2076.E-042.9492.E-05-2.2311.E-037.1317.E-038.1337.E-03C562.2507.E-046.2959.E-04-1.1452.E-031.8150.E-02-1.6272.E-02C57-1.5579.E-04-2.9819.E-04-2.2750.E-039.2453.E-0 32.4808.E-02C581.5433.E-031.7432.E-032.5180.E-0200C597.1051.E-048.7343.E-049.1176.E-02-2.1385.E-01-6.2382.E-01C60-2.9087.E-04 -8.4994.E-047.0966.E-04-1.9445.E-01-9.3977.E-02C611.8115.E-03-2.7683.E-041.9624.E-022.0664.E-03-8.1895.E-03C625.1088.E-04-7.9 820.E-05-7.1699.E-031.2343.E-021.7347.E-02C63-2.4293.E-048.4822.E-06-1.9052.E-035.1962.E-027.8805.E-03C64-2.9271.E-04-4.4563. E-041.4984.E-023.0145.E-03-2.0191.E-02C65-1.5431.E-04-2.1577.E-044.3704.E-042.1882.E-035.4689.E-03C662.1088.E-043.3552.E-04- 3.5084.E-032.3956.E-022.0588.E-02C67-5.8332.E-05-7.5895.E-05-8 .5296.E-037.7017.E-03-1.6482.E-02C681.0763.E-042.6440.E-041.330 7.E-029.5326.E-03-6.5306.E-03C69-7.6843.E-05-6.7194.E-06-2.8965.E-036.2231.E-031.3101.E-03C709.5819.E-05-1.1438.E-061.3796.E- 03-1.5933.E-03-3.9765.E-03C71-1.1341.E-04-2.2555.E-045.0557.E-04-4.0929.E-034.8486.E-03C722.4423.E-041.7978.E-043.9364.E-038.5945.E-037.4097.E-03C73-2.4881.E-04-6.8680.E-051.1678.E-03-7.63 43.E-04-1.1123.E-02C743.6348.E-04-1.9580.E-04-3.0648.E-03-1.375 0.E-031.5793.E-03C75-5.1330.E-043.7611.E-042.5927.E-039.7451.E-045.0486.E-03C765.8180.E-04-2.4098.E-04-1.0830.E-03-3.1657.E-04- 4.4115.E-03C77-5.3905.E-04-7.6447.E-05-1.4901.E-042.0992.E-048.4513.E-04C783.8025.E-042.4902.E-047.2703.E-04-8.2818.E-051.3842 .E-03C79-1.9007.E-04-1.7121.E-04-6.5013.E-04-8.8766.E-05-1.3655.E-03C807.1078.E-054.6247.E-052.5136.E-045.5074.E-054.7426.E-04.

[0261] S9(F-FFS)S10(F-FFS)S11(H-FFS)S12(H-FFS)S13(H-FFS)R15.513-23.96454.08315.13254.083Nradius11.87712 .41113.1688.93613.168K-1.4067-0.34400.01300.07530.0130ω-29.692526.5744-109.0282-31.3246-109.0282X Offset3.1287.E-02-2.7027.E-02000Y Offset1.9442.E+003.2228.E+00-3.9361.E-01-1.4137.E+00-3.9361.E-01C101.3127.E-012.7959.E-02000C11-2.7481.E-011.7917.E-012.2769.E+00-2.4771.E-012.2769.E+00C13-7.6279.E-017.1988.E-016.2836.E-02-7. 2532.E-016.2836.E-02C14-8.4792.E-037.8679.E-02000C151.5700.E-01-2.7111.E-02000C162.8604.E-011.2500.E+001.3461.E+00-3.0000.E-011.3461.E+00C17-7.1972.E-011.5421.E+00-1.0553.E+003.1217.E-01-1.055 3.E+00C184.1135.E-031.1638.E-02000C19-1.2561.E-01-1.5836.E+001.4861.E-01-5.3126.E-011.4861.E-01C 20-5.2344.E-015.8843.E-014.7940.E-011.1408.E-014.7940.E-01C21-6.9108.E-03-3.3352.E-02000C221.778 1.E-02-6.1224.E-02000C23-7.8875.E-046.8189.E-012.3867.E-01-5.4269.E-022.3867.E-01C24-1.5046.E-01 9.3849.E-025.2670.E-016.6488.E-025.2670.E-01C25-5.3870.E-011.0495.E-01-1.7666.E+003.8662.E-01-1.7666.E+00C268.0522.E-012.0467.E-02000C27-2.0689.E-02-7.8107.E- 04000C28-1.1838.E-01-7.0699.E-01-2.7323.E-012.1457.E-01-2.7323 .E-01C29-2.6833.E-012.5956.E-01-1.0808.E-018.5590.E-02-1.0808.E-01C30-1.2967.E-026.3671.E-02000C31-2.9029.E-027.9611.E-03000C 324.9482.E-021.6059.E-012.8969.E-015.1519.E-022.8969.E-01C337.1777.E-03-2.5067.E-01-1.3374.E-012.2305.E-02-1.3374.E-01C349.08 68.E-012.9771.E-02000C35-1.4223.E+002.7766.E+001.7100.E-01-5.2181.E-031.7100.E-01C366.0500.E-022.5035.E-016.8427.E-01-5.0899. E-026.8427.E-01C375.8250.E-022.3801.E-02000C38-1.6583.E-024.6516.E-02000C39-9.6558.E-02-3.6325.E-01-4.6073.E-014.9196.E-02-4. 6073.E-01C40-2.0580.E-01-1.3654.E-021.0413.E-01-7.1531.E-031.0413.E-01C41-2.3688.E-03-1.4098.E-03000C42-4.8384.E-023.8247.E-0 3000C434.2420.E-03-7.8060.E-026.8834.E-021.1424.E-026.8834.E-02C441.1685.E-01-2.2865.E-01-2.8287.E-01-1.4848.E-02-2.8287.E-01 C452.5073.E+01-5.5233.E-011.1623.E+002.9164.E-011.1623.E+00C46 6.7556.E-011.2362.E-01000C474.2184.E-013.9840.E-02000C484.8187.E-017.8006.E-01-1.1147.E-013.0103.E-02-1.1147.E-01C492.0097.E- 012.9075.E-01-1.6974.E-011.1137.E-02-1.6974.E-01C50-4.4875.E-0 21.2158.E-02000C517.8123.E-036.9354.E-02000C52-1.0566.E-01-1.9363.E-01-2.2300.E-01-2.8397.E-02-2.2300.E-01C53-2.0763.E-01-1.8 309.E-01-6.6472.E-027.7238.E-03-6.6472.E-02C54-2.2830.E-02-1.2 269.E-01000C556.2346.E-031.0011.E-01000C567.4499.E-02-9.3880.E -028.4492.E-02-1.1275.E-028.4492.E-02C571.0374.E-01-2.2952.E-0 1-1.6175.E-01-1.7970.E-02-1.6175.E-01C583.2011.E+006.2661.E-010 00C59-1.1650.E+029.1770.E+001.0211.E+00-2.7115.E-011.0211.E+00C604.5890.E+001.6598.E+003.0891.E-018.9274.E-023.0891.E-01C61- 1.1238.E+00-1.2125.E-01000C624.5471.E-025.9392.E-02000C635.0864.E-01-2.3494.E-011.3455.E-01-1.5054.E-021.3455.E-01C642.0372.E -013.9417.E-011.6117.E-01-1.3419.E-021.6117.E-01C65-1.2274.E-011.1711.E-01000C66-1.5611.E-017.7782.E-02000C67-3.9705.E-01-1.2 898.E-01-7.9862.E-031.0815.E-02-7.9862.E-03C68-1.5923.E-01-2.1849.E-012.9064.E-022.0707.E-032.9064.E-02C695.4890.E-02-3.2565.E-02000C705.6926.E-022.4075.E-03000C711.1735.E-01-5.3789.E-031.7578.E-011.6849.E-031.7578.E-01C725.7194.E-02-1.3195.E-011.9684.E-031.8366.E-021.9684.E-03C739.3 760.E-03-1.6319.E-024.2234.E-022.2762.E-034.2234.E-02C74-1.8125.E-021.9396.E-02-5.1395.E-02-1.1602.E-02-5.1395.E-02C75-2.7305.E-021.9903.E-024.1074.E-026.0731. E-034.1074.E-02C76-2.0658.E-02-3.2484.E-025.0170.E-023.9815.E-035.0170.E-02C77- 3.1475.E-03-5.3817.E-02-3.3681.E-02-8.4459.E-03-3.3681.E-02C788.1892.E-031.6256. E-028.0879.E-026.3897.E-038.0879.E-02C79-7.1175.E-034.8059.E-02-5.7899.E-02-2.4 794.E-03-5.7899.E-02C801.3069.E-02-3.8182.E-024.6856.E-023.4684.E-044.6856.E-02.

[0262] S14(H-FFS)S15(H-FFS)S16(H-FFS)S17(H-FFS)S18(H-FFS)R29.375-38.700-125.692-18.064-125.692Nradius15.9778.46032.45110.15132.451K-0.0188-10.2789-33.6380-0.9084-33.6380ω-32.5640-0.6153-3.492813.7860-3.4928X Offset00000Y Offset-2.4855.E+008.1409.E-011.7000.E+003.9280.E-011.7000.E+00C1000000C11-1.3605.E+00-2.0176.E+001.2838.E+00-8.0542.E-011.2838.E+00C13-4.5936.E-011.6856.E-02-1.2072.E+00-4.9870.E-01-1.2072.E+00C1400000C1500000C162.3644.E-012.8500.E-01-2.7474.E+00-9.2045.E-01-2.7474.E+00C17-5.3373.E-01-3.8453.E-01-5.9902.E-01-4.3983.E-02-5.9902.E-01C1800000C19-2.4691.E+00-5.9742.E-014.7769.E+00-8.4532.E-024.7769.E+00C20-1.2112.E-01-4.6709.E-02-8.1646.E-01-1.3131.E-01-8.1646.E-01C2100000C2200000C232.8642.E-014.2732.E-021.7054.E-01-1.1416.E-011.7054.E-01C24-3.4731.E-017.9190.E-03-1.4677.E+00-1.1360.E-02-1.4677.E+00C254.3518.E-01-2.2179.E-012.7271.E+01-6.4520.E-012.7271.E+01C2600000C2700000C28-7.5346.E-011.1815.E-017.7052.E-011.4851.E-017.7052.E-01C296.7418.E-027.8407.E-025.7663.E-01-5.8583.E-025.7663.E-01C3000000C3100000C321.1655.E-014.3026.E-03-5.489 5.E-012.3251.E-02-5.4895.E-01C33-6.0665.E-02-3.1050.E-02-3.1284 .E-01-8.7853.E-03-3.1284.E-01C3400000C354.0930.E+00-5.3976.E-0 28.8222.E+017.5959.E-028.8222.E+01C362.3800.E-017.4444.E-02-1.8 669.E+001.8158.E-01-1.8669.E+00C3700000C3800000C39-3.0470.E-011.4707.E-025.7479.E-01-5.2588.E-035.7479.E-01C403.6552.E-01-8.1 773.E-03-5.2131.E-01-3.5070.E-03-5.2131.E-01C4100000C4200000C4 37.4047.E-03-5.2214.E-03-3.9259.E-017.5051.E-03-3.9259.E-01C44- 4.2406.E-028.2913.E-05-1.6012.E-011.1962.E-02-1.6012.E-01C45-1 .9972.E+001.9606.E-01-1.5417.E+02-3.1823.E-01-1.5417.E+02C46000 00C4700000C487.5264.E-012.5918.E-02-3.4356.E+00-5.0957.E-02-3.4356.E+00C499.6814.E-02-7.3406.E-031.8483.E-01-3.0174.E-021.848 3.E-01C5000000C5100000C52-6.1524.E-028.4421.E-034.4065.E-01-8.3198.E-034.4065.E-01C531.0260.E-01-1.6739.E-02-5.1216.E-011.874 9.E-03-5.1216.E-01C5400000C5500000C56-4.7624.E-03-5.0183.E-03-2.2890.E-01-1.1903.E-02-2.2890.E-01C571.3990.E-022.0459.E-02-4.4364.E-021.3827.E-03-4.4364.E-02C5800000C59-4.2271.E+004.5423. E-022.1214.E+01-4.8628.E-022.1214.E+01C60-1.6798.E+00-6.3306.E- 023.3286.E+017.7618.E-023.3286.E+01C6100000C6200000C63-5.3247.E-02-1.0647.E-03-5.3437.E+002.2108.E-02-5.3437.E+00C644.4651.E- 023.4028.E-035.5069.E-01-2.5631.E-035.5069.E-01C6500000C6600000C671.3853.E-01-5.6825.E-033.7532.E-012.0488.E-033.7532.E-01C68 -4.3220.E-024.1290.E-03-4.0784.E-01-3.2488.E-04-4.0784.E-01C6900000C7000000C713.0871.E-022.3990.E-03-9.4954.E-022.8755.E-03-9 .4954.E-02C722.2085.E-029.4576.E-031.5242.E-02-7.1650.E-031.52 42.E-02C739.3362.E-03-1.1077.E-023.4485.E-022.2084.E-033.4485.E -02C74-6.8313.E-03-1.1384.E-021.9376.E-024.6704.E-031.9376.E-02C75-1.3087.E-025.5074.E-03-2.1530.E-03-4.7481.E-03-2.1530.E-03 C76-6.1230.E-031.0222.E-02-1.8983.E-023.8436.E-04-1.8983.E-02C 776.9014.E-03-3.3820.E-03-2.1830.E-022.7195.E-03-2.1830.E-02C78 6.9149.E-03-9.6160.E-03-1.4680.E-02-2.9235.E-03-1.4680.E-02C79-4.9184.E-039.0104.E-03-4.0565.E-031.5523.E-03-4.0565.E-03C80-8.2644.E-04-2.5299.E-031.4704.E-03-4.1079.E-041.4704.E-03.

[0263] S19(F-FFS)S20(F-FFS)S21(F-FFS)S22(F-FFS)S23(F-FFS)R-22.380617.605693.052-187.775-186.512Nradius14. 4866.5605.17610.70655.075K3.9658-5.9800-25.17606.69180.7243ω-178.8120-4.61648.4008-8.1827-61.8036X Offset-2.7876.E-013.1261.E-012.5930.E-01-1.0914.E-01-1.2254.E+01Y Offset9.7439.E+00-1.2067.E+00-1.0481.E+00-1.2546.E+002.1720.E+01C102.5123.E-01-2.2879.E-026.0202.E-012.4356.E-01-9.2393.E-01C11-6.9439.E-01-3.8369.E-01-4.4461.E-02-6.7893.E-02-1.0650. E-01C13-6.9958.E-01-1.7862.E-01-2.7046.E-01-9.6511.E-01-1.1128.E-01C14-2.4657.E-01-7.3748.E-01-1.5694.E-013.6400.E-01-9.8077.E-02C15-3.5593.E-01-4.6475.E-028.6277.E-022.8809.E-013.260 6.E+00C164.7277.E-01-4.3584.E-012.0669.E-01-1.6746.E-01-1.1653.E+00C172.7334.E-014.9829.E-03-9.0557.E-02-2.3465.E-011.3568.E+00C18-3.0221.E-01-3.6106.E-02-4.9809.E-021.8552.E-01-1.472 3.E+00C197.7268.E-012.3630.E-017.6965.E-02-6.3128.E-022.1080.E-01C20-4.5320.E-01-9.3999.E-02-1.3155.E-01-1.3158.E-01-9.0993.E-01C211.0938.E-011.5483.E-01-2.3732.E-02-1.2987.E-011.0267.E+00C22-2.3703.E-01-3.4770.E-021.9933.E-02-1.7545.E-022.8178.E+00C23-4.3836.E-04-4.8342.E-042.0023.E-02-2.2744.E-012.6803.E- 01C243.9569.E-024.0818.E-031.0192.E-02-2.9173.E-021.5519.E+00C 257.5759.E-01-2.4816.E-019.4531.E-02-1.0461.E-017.6610.E-01C266 .3978.E-02-1.1050.E-015.3617.E-024.3883.E-012.6305.E+00C277.2822.E-02-1.1465.E-02-4.4626.E-02-1.4814.E-011.0581.E+00C282.3985 .E-011.2403.E-035.1909.E-02-3.4613.E-011.4492.E+00C29-4.7745.E-023.3130.E-024.3281.E-033.9975.E-02-2.5626.E+00C304.5950.E-023 .2003.E-029.8524.E-036.4388.E-02-1.1063.E+01C311.4619.E-02-2.5760.E-03-6.7563.E-035.8430.E-02-1.0427.E+00C32-5.2266.E-021.31 26.E-021.6089.E-03-3.1643.E-031.2341.E+00C339.6717.E-025.0450.E-03-3.9100.E-06-7.7973.E-02-2.2154.E+00C341.8297.E-021.7650.E- 011.3032.E-01-9.4007.E-025.8784.E+00C35-5.1505.E-016.9143.E-024.2315.E-02-4.4821.E-014.2027.E+00C361.5665.E-01-4.2207.E-027.5 604.E-032.0865.E-011.4570.E+00C37-4.9289.E-02-5.6920.E-02-3.9825.E-034.1988.E-01-1.9370.E+00C381.6284.E-02-1.4954.E-023.1141.E-044.1712.E-03-8.9897.E+00C397.1645.E-021.0148.E-024.4628.E-05-4.8164.E-024.3751.E+00C40-2.7812.E-023.9474.E-031.5943.E-032 .6992.E-022.4570.E+00C415.1890.E-03-4.2058.E-038.0990.E-042.4444.E-02-7.0979.E+00C421.7962.E-024.4629.E-03-1.5061.E-03-4.3768 .E-026.3574.E+01C432.5647.E-02-2.4029.E-03-1.1732.E-04-6.7191. E-03-6.0771.E+00C44-9.4527.E-043.4400.E-03-1.9837.E-04-8.1766.E -025.1914.E-02C45-2.5178.E-01-1.1058.E-012.7256.E-02-1.4735.E-011.9511.E+01C461.2903.E-021.6308.E-02-8.3447.E-03-3.2732.E-02- 6.6833.E+00C47-2.0947.E-022.0786.E-028.3401.E-03-2.1475.E-01-2 .7982.E+00C48-6.7280.E-021.5676.E-022.9760.E-034.1441.E-013.90 97.E+00C499.8561.E-023.0318.E-04-2.2476.E-032.3720.E-013.3599. E+00C50-9.7202.E-03-1.3374.E-024.3669.E-05-1.8950.E-014.5485.E+ 00C513.5759.E-03-9.8350.E-047.0854.E-04-1.0162.E-01-1.3342.E+01C524.1081.E-031.2178.E-02-3.5791.E-041.2230.E-01-5.0910.E+00C5 36.3182.E-03-3.6770.E-031.1879.E-049.8075.E-033.3172.E-01C54-4.4692.E-03-9.7958.E-04-1.4578.E-043.8295.E-02-1.6419.E+01C55-2.0152.E-038.7582.E-04-3.8817.E-04-6.6202.E-03-1.0422.E+02C564.2945.E-031.0761.E-04-8.3269.E-057.5422.E-029.1002.E-01C57-5.901 6.E-033.9948.E-058.3136.E-066.8159.E-02-1.6379.E+00C584.8560.E -021.7858.E-022.1242.E-023.0151.E-01-9.2589.E+00C592.1770.E-03- 6.3280.E-021.0259.E-022.4243.E-011.6407.E+01C60-1.0339.E-019.7478.E-03-9.6663.E-04-8.4478.E-02-8.2504.E+00C61-4.2231.E-032.8 687.E-024.6489.E-03-2.2449.E-016.4793.E+00C62-8.9519.E-033.0161.E-043.0682.E-04-4.9162.E-04-4.8205.E+00C63-8.8630.E-02-1.2216 .E-03-4.1075.E-04-3.3606.E-021.7462.E+01C648.1380.E-03-6.0923.E-03-6.7082.E-04-8.7088.E-02-2.1406.E+01C65-5.8138.E-04-3.7632 .E-032.9930.E-04-7.3844.E-031.9998.E+01C66-7.2950.E-042.4149.E -041.5280.E-041.4256.E-024.8655.E+00C67-7.2420.E-032.1632.E-03- 4.3078.E-06-2.0205.E-02-1.2458.E+00C684.8019.E-04-3.6093.E-04- 1.8736.E-05-2.2688.E-023.0076.E+00C69-4.7901.E-04-4.2389.E-04-1 .9233.E-05-2.6409.E-021.1002.E+00C70-2.2147.E-03-7.3242.E-051.3847.E-05-4.9236.E-03-2.9155.E+01C71-1.3744.E-03-1.0582.E-04-3.0360.E-06-2.8382.E-02-2.8316.E+00C727.1507.E-047.2037.E-061.5798.E-06-4.8294.E-031.4581.E+01C731.8089.E-048.4637.E-051.9580.E-077.7240.E-03-1.56 05.E+01C74-8.6749.E-055.1570.E-06-3.7414.E-08-1.5102.E-02-8.4179.E+00C751.7130.E-05-2.5713.E-062.5272.E-095.5376.E-032.0631.E+01C76-7.7693.E-074 .4839.E-073.4932.E-105.7833.E-03-1.0544.E+01C77-7.9756.E-078.4911.E-09-1.4890.E-10-3.0815.E-032.1279.E+01C784.0660.E-07-3.2376.E-082.8868.E-11-3 .1352.E-03-2.7944.E+01C79-7.5039.E-087.3053.E-09-1.9514.E-121.8895.E-03-1.9811.E+00C80-3.4384.E-081.7979.E-09-7.9458.E-135.0394.E-04-1.8069.E+01.

[0264]

[0265] FIGS. 30 to 33 are drawings showing other examples of the fifth embodiment. In the description of the fifth embodiment, the same configuration and description as the fourth embodiment will be referred to the drawings and description of the fourth embodiment. The description of FIGS. 30 to 33 will also refer to the drawings of FIGS. 22 to 25. An optical system or camera module according to the fifth embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) having a long length in the second direction (Y). The second prism (P2) has an incident side adjacent to the first prism (P1) and an exit side adjacent to the third prism (P3). A plurality of object-side lenses (L1-1, L1-2) may be included between the incident sides of the first prism (P1) and the second prism (P2). At least one lens (L2-1) may be included between the incident sides of the second prism (P2) and the third prism (P3), or the third prism (P3) may be arranged without a lens. A lens may be provided between the third prism (P3) and the image sensor (10), or the third prism (P3) may be arranged without a lens. A cover glass (11) is arranged between the third prism (P3) and the image sensor (10), and the cover glass (11) has both side surfaces (S24, S25) of FIG. 31(a). The plurality of object-side lenses include an object-side first lens (L1-1) and a sensor-side second lens (L1-2). In addition, at least one or all of the lens surfaces of each of the first prism (P1), the first lens (L1-1), the second lens (L2-1), the second prism (P2), the third lens (L2-1), and the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface of a non-rotationally symmetric shape, for example, a Full-FFS (Freeform surface).The first lens (L1-1) may have a meniscus shape that is convex toward the object or sensor on the paraxial region. The second lens (L1-2) may have a biconvex shape or a biconcave shape on the paraxial region. The third lens (L2-1) may have a biconvex shape or a biconcave shape on the paraxial region.

[0266]

[0267] The second prism (P2) includes an incident-side transmission / total reflection surface, a plurality of reflection surfaces, and an exit-side transmission / total reflection surface, and the optical surfaces (S11-S18) of the second prism (P2) are free-form surfaces having a non-rotationally symmetric shape, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). At least one or all of the incident surface (S21), the reflection surface (S22), and the exit-side surface (S23) of the third prism (P3) may have free-form surfaces having a non-rotationally symmetric shape. At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface). The third prism (P2) may be provided without an incident-side transmission / total reflection surface. Accordingly, since each of the second and third prisms (P2, P3) has at least one non-rotationally symmetric free-form surface among the plurality of optical surfaces, the degradation of optical performance caused by the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has at least one non-rotationally symmetric full free-form surface that has no axis of symmetry at all within the lens plane, the resolution and optical performance in the horizontal plane direction can be improved.

[0268]

[0269] At least one or both of the incident side surface (S7) and the exit side surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the first lens (L1-1) may have a Full-FFS (Freeform surface). At least one or both of the incident side surface (S9) and the exit side surface (S10) of the second lens (L1-2) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the second lens (L1-2) may have a Full-FFS (Freeform surface). At least one or both of the incident side surface (S19) and the exit side surface (S20) of the third lens (L2-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface). The resolution and optical performance in the horizontal plane direction can be improved by the first, second, and third lenses (L1-1, L1-2, L2-1). In addition, the non-rotational symmetry of the CRA can be removed by the third lens (L2-1) placed between the second and third prisms (P2, P3), and the CRA distribution can be corrected to be the same as that of a general optical system, and the non-rotationally symmetric light quantity can also be reduced.

[0270] At least one or both of the incident surface (S7) and the exit surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetrical shape. The resolution and optical performance can be improved by the free-form surface of the first lens (L1-1). At least one or both of the free-form surfaces of the first lens (L2-1) may have a Full-FFS (Freeform surface). At least one or both of the incident surface (S9) and the exit surface (S10) of the second lens (L1-2) may have a free-form surface of a non-rotationally symmetrical shape. The resolution and optical performance can be improved by the free-form surface of the second lens (L1-2). At least one or both of the free-form surfaces of the second lens (L1-2) may have a Full-FFS (Freeform surface).

[0271] The second lens (L1-2) adjacent to the object side of the prism (P2) may have different thicknesses at the top (end in the +Y direction) and the bottom (end in the -Y direction) in the second direction (Y) based on the center. That is, the top of the second lens (L1-2) in the second direction (Y) may be thicker than the bottom. The second lens (L1-2) may have a wedge-shaped side cross-section. The top and bottom of the second lens (L1-2) are thicknesses of both edges of the effective area in the second direction passing through the center.

[0272] When the upper thickness of the second lens (L1-2) is L2_ET1 and the lower thickness is L2_ET2, the following conditions can be satisfied.

[0273] Condition: L2_ET1 / L2_ET2 > 1.5

[0274] That is, the thickness ratio of the upper / lower portions of the second lens (L1-2) may be greater than 1.5, for example, in the range of 2 to 3.5 or in the range of 2.5 to 3. Accordingly, aberration correction may be possible by providing different powers due to the thickness difference at the two edges in the second direction of the second lens (L1-2). Since the upper thickness of the second lens (L1-2) is provided to be thicker than the lower thickness, light refracted through the second lens (L1-2) may be incident on the entire area of ​​the incident surface (S7) of the prism (P2).

[0275] The first prism (P1) may provide a plurality of refractive surfaces and a total reflection surface or a transmission / total reflection surface, as in the first embodiment. At least one or both of the 19th surface (S19) on the incident side and the 20th surface (S20) on the exit side of the third lens (L2-1) may have a free-form surface of a non-rotationally symmetric shape. The resolution and optical performance may be improved by the free-form surface of the third lens (L2-1). At least one or both of the free-form surfaces of the second lens (L2-1) may have a Full-FFS (Freeform surface).

[0276]

[0277] The center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) may be greater than the center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2), and may be, for example, 1.5 times or more greater. The center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2) may be 2.5 mm or less, for example, in the range of 0.5 mm to 2.5 mm, and the center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) may be 2 mm or more, for example, in the range of 2 mm to 5 mm. In this way, by setting the distance between two adjacent prisms within the above range, the width of the optical system can be reduced.

[0278] Here, when the center distance between the exit side surface of the first prism (P1) and the incident side surface of the second prism (P2) is PL1, and the center distance between the exit side surface of the second prism (P2) and the incident side surface of the third prism (P3) is PL2, the following condition can be satisfied. In the following, D is the diagonal length of the image sensor.

[0279] Condition 1: 0 < PL1 / D < 0.5

[0280] Condition 2: 0 < PL2 / D < 0.5

[0281] Condition 3: PL1 / D < PL2 / D

[0282]

[0283] As in the lens data of Fig. 31, the incident light passes through the third surface (S3) to the twenty-third surface (S23) and is incident on the image sensor (10). Among the fourth surface (S4) to the twenty-third surface (S23), the fifth surface (S5) around the center of each surface, i.e., in the paraxial region, may have a maximum absolute value of curvature radius, and the sixth surface (S6) may have a minimum radius of curvature. The radius of curvature of the seventh to tenth surfaces (S7-S10) may be 100 mm or less, for example, 80 mm or less. The radius of curvature of the eighth and ninth surfaces (S8, S9) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. The surface having the maximum radius of curvature (absolute value) in the second prism (P2) may be the second transmission / total reflection surface (TS2: S16, S18). The surface having the maximum radius of curvature in the third prism (P3) may be the exit surface (S23), and may be larger than the absolute value of the radius of curvature of the second transmission / total reflection surface (TS2). The exit-side surface (S20) of the third lens (L2-1) may be at least four times larger than the absolute value of the radius of curvature of the entrance-side surface (S19).

[0284] In the lens data of Fig. 31, it can be seen that the radii of curvature (local-rx, ry) in the first and second directions in the paraxial regions of the fourth surface (S4) to the twenty-third surface (S22) are different from each other. It can be seen that the focal lengths (Local-fx, fy) in the first and second directions (x, y) in the paraxial regions of the fourth surface (S4) to the twenty-third surface (S22) are different from each other.

[0285]

[0286] As shown in Table 26, the focal lengths (local_fx, local_fy) of the first prism (P1), the first lens (L1-1), the second lens (L1-2), the third prism (P3), and the third lens (L2-1) in the first direction (X) and the second direction (Y) are as follows. In the first prism (P1), the focal length in the first direction (X) is greater than the focal length in the second direction (Y). In the first prism (P1), the focal length in the first direction (X) and the focal length in the second direction (Y) have the same positive (+) value. In the first lens (L1-1), the focal length in the first direction (X) and the focal length in the second direction (Y) have opposite signs. In the second lens (L1-2), the focal length in the first direction (X) and the focal length in the second direction (Y) have opposite signs. In the third lens (L2-1), the focal length in the first direction (X) has the same sign as the focal length in the second direction (Y), and may be smaller than the focal length in the second direction (Y). In the third prism (P3), the focal length in the first direction (X) has the opposite sign as the focal length in the second direction (Y), and may be smaller than the absolute value of the focal length in the second direction (Y).

[0287] P1L1-1L1-2local_fxlocal_fylocal_fxlocal_fylocal_fxlocal_fy11.0257.963-263.11242.52221.795-12.522L2-1P3local_fxlocal_fylocal_fxlocal_fy20.3785.409-15.05649.539

[0288] When the refractive indices of the first prism (P1), the first lens (L1-1), the second lens (L1-2), the second prism (P2), the third lens (L2-1), and the third prism (P3) are defined as Nd1, Nd2, Nd3, Nd4, Nd5, and Nd6, the following conditions can be satisfied.

[0289] Condition 1: Nd1,Nd2 < Nd3 Condition 2: Nd3 < Nd4

[0290] Condition 3: Nd5 < Nd4 Condition 4: Nd6 < Nd4

[0291] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second lens (L1-2), the second prism (P2), the second lens (L2-1), and the third prism (P3) are defined as Vd1, Vd2, Vd3, Vd4, Vd5, and Vd6, the following conditions can be satisfied.

[0292] Condition 1: Vd3 < Vd1,Vd2 Condition 2: Vd4 < Vd2

[0293] Condition 3: Vd4 < Vd1,Vd6 Condition 4: Vd4 < Vd6 < Vd1

[0294] The first to third lenses may be made of glass or plastic, and may be injection-molded.

[0295]

[0296] The optical system may have an intermediate imaging plane (M1) within the second prism (P2), as shown in Fig. 10a. The intermediate imaging plane (M1) is positioned on the optical path between the 12th surface (S12) and the 14th surface (S14), and reference will be made to the description of the first embodiment. As shown in Fig. 30, the incidence angle (R2) of the reference ray (L100) at the 14th surface (S14) in the second prism (P2) may be less than 45 degrees with respect to a straight line perpendicular to the tangent line of the 14th surface (S14), and the following conditions may be satisfied.

[0297] Condition: 0 < R2 < 45 degrees

[0298] By suppressing the incidence angle of the reference ray (L100) according to the above conditions, the eccentric aberration can be reduced and the deterioration of the optical performance can be prevented. Preferably, 20 degrees < R2 < 40 degrees can be satisfied. The effective area of ​​the fourteenth surface (S14) within the second prism (P2) can be smaller than the effective areas of each of the incidence surface (S11) and the emission surface (S18). Accordingly, the size of the third direction of the second prism (P2) can be reduced. In addition, the fourteenth surface (S14) within the second prism (P2) can have an effective area smaller than the effective areas of the other reflective surfaces.

[0299]

[0300] Fig. 33 is a spot diagram of an optical system according to the fifth embodiment, and it can be seen that the optical performance for nine fields is improved. The distortion in the optical system is 3% or less, and the rotational symmetry of the incident CRA of the imaging surface is ±3 degrees or less. The invention can reduce the thickness (T) of the optical system in the third direction (Z) by arranging first to third prisms (P3) that provide a light reflection path between an object and an image sensor (10). The optical system according to the fifth embodiment can satisfy conditional expressions 1 and 2 of the first embodiment.

[0301] Tables 27 to 30 below show the radius of curvature (R) of the conic axis of the fourth to twenty-third surfaces (S23), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80) and the dimensions (uk, m). The FFS coefficients (C10-C80) and the dimensions (uk, m) are shown in Fig. 50. In the following tables, Full FFS is abbreviated as F-FFS, and Half FFS is abbreviated as H-FFS.

[0302] S4(F-FFS)S5(F-FFS)S6(F-FFS)S7(F-FFS)S8(F-FFS)R15.5803-372.24356.978966.238721.9259Nradius3.52834.29944.24064.95974.8056K-3.2587.E+004.9450.E+01-1.4238.E-021.9768.E+012.7663.E+00ω1.9617.E+01-2.3206.E+00-3.2153.E+025.3390.E+022.1080.E+01X Offset00-4.7262.E-03-1.1026.E-02-2.7709.E-02Y Offset6.9330.E-02-1.2000.E+005.5618.E-01-1.2101.E-01-7.1998.E-02C10-6.7069.E-02-3.8490.E- 023.0273.E-026.6088.E-021.3919.E-01C111.5709.E-01-4.5637.E-02-3.6606.E-011.4012.E-01-1.766 2.E-01C13-4.2468.E-01-2.6206.E-02-2.2770.E-01-1.5301.E-01-6.9269.E-02C14-3.8702.E-02-7.42 05.E-038.5726.E-029.0698.E-02-7.1384.E-02C15-4.1160.E-02-1.2527.E-027.1504.E-031.7012.E-02 5.3737.E-02C16-2.2218.E-02-1.0062.E-024.3132.E-01-6.4496.E-023.4287.E-01C173.4299.E-023.6 217.E-03-2.5555.E-021.3513.E-015.4023.E-02C182.5731.E-025.8317.E-03-2.4308.E-02-7.8594.E-0 23.6237.E-02C198.5831.E-031.5310.E-03-8.3946.E-03-1.2794.E-01-8.6492.E-02C203.9684.E-02-8. 8791.E-03-9.7434.E-02-1.1847.E-01-1.4982.E-01C21-5.9140.E-03-4.6659.E-032.5087.E-021.0174.E-021.7385.E-02C222.0194.E-026.2632.E-04-8.5797.E-036.8280.E-031.0455.E-02C23-2.5256.E-032.2018.E-038.8691.E-02-1.5952.E-025 .8563.E-02C242.4428.E-037.6768.E-045.1542.E-023.6254.E-02-9.55 83.E-03C25-2.3492.E-02-1.4379.E-027.0887.E-02-7.3293.E-02-4.218 6.E-02C263.9546.E-03-1.1058.E-02-7.4261.E-02-6.0969.E-026.5494 .E-03C27-1.4954.E-02-8.0390.E-03-2.5856.E-02-3.2443.E-02-1.450 5.E-02C28-1.1709.E-025.7478.E-04-4.2635.E-021.0308.E-03-8.8097 .E-02C295.0840.E-033.2424.E-041.0888.E-02-4.1721.E-02-1.2065.E- 01C306.2185.E-04-6.2732.E-04-3.8644.E-03-1.0738.E-021.1599.E-02C31-5.1766.E-03-1.7762.E-04-8.7765.E-03-4.3135.E-03-4.9412.E- 03C322.1285.E-044.1892.E-046.9503.E-032.5498.E-02-2.8554.E-03C 33-2.9260.E-03-1.4238.E-033.3548.E-022.8223.E-03-2.4067.E-02C34 7.0325.E-03-2.2892.E-03-1.0830.E-02-3.9127.E-02-9.0140.E-02C352.3647.E-035.3709.E-047.8077.E-02-1.0769.E-01-6.3198.E-02C36-9. 6429.E-048.0113.E-03-9.2729.E-02-1.3978.E-027.6596.E-02C376.06 79.E-042.3921.E-031.1444.E-03-7.2701.E-03-5.7083.E-02C383.6030.E-033.4481.E-03-8.1544.E-03-4.3353.E-03-8.6080.E-03C39-1.2260.E-038.3359.E-04-2.0395.E-022.0068.E-02-2.0310.E-02C40-2.5205.E- 031.9485.E-039.0623.E-04-9.6640.E-03-4.4335.E-02C41-3.4110.E-044.0336.E-04-1.3140.E-02-8.7228.E-03-4.3518.E-03C421.3016.E-035 .1825.E-04-9.8052.E-03-1.5601.E-025.9316.E-03C434.9015.E-04-5.7458.E-04-1.8870.E-02-3.5209.E-037.7003.E-03C441.0075.E-037.682 9.E-04-2.3518.E-02-5.3324.E-03-5.6277.E-03C459.6875.E-045.4689.E-03-6.3370.E-021.0926.E-012.4326.E-01C46-1.4735.E-034.5205.E- 03-4.2817.E-0200C47-2.1184.E-031.9737.E-033.2138.E-023.9129.E- 033.9644.E-02C481.7904.E-031.7152.E-03-1.1622.E-026.2644.E-029. 3964.E-02C492.1422.E-03-7.0972.E-04-1.7694.E-022.8919.E-021.76 55.E-02C508.4630.E-052.4228.E-041.5397.E-02-2.1131.E-03-1.1193. E-02C51-1.0774.E-03-8.7894.E-041.1836.E-034.3643.E-036.4018.E-03C524.0587.E-04-1.8401.E-045.8615.E-03-7.8352.E-034.5220.E-02C 535.8267.E-04-9.7943.E-04-2.1498.E-02-1.0964.E-022.2350.E-02C541.1970.E-04-1.5075.E-055.2211.E-03-1.1309.E-027.1337.E-03C55-2.1567.E-04-3.2052.E-04-2.8846.E-03-4.0295.E-03-3.8230.E-03C565.8379.E-052.8645.E-041.0163.E-02-4.7439.E-032.1101.E-03C57-3.88 64.E-04-5.2831.E-043.4143.E-031.0159.E-045.4114.E-03C582.9177.E-04-8.5173.E-051.3593.E-0200C59-1.6895.E-03-1.9733.E-047.4976. E-02-2.1385.E-01-6.2382.E-01C60-6.8025.E-04-1.9992.E-031.2553.E-04-1.9597.E-01-9.8138.E-02C614.1216.E-04-1.1126.E-031.8574.E- 022.0664.E-03-1.0158.E-02C622.3487.E-04-1.7788.E-04-1.5976.E-0 25.6202.E-031.3665.E-02C63-1.7194.E-04-3.7954.E-04-6.5693.E-031 .8205.E-02-1.2477.E-02C64-4.5724.E-04-3.7877.E-041.9831.E-023.2125.E-02-2.3020.E-03C65-6.1476.E-05-1.7223.E-04-4.4729.E-03-5 .5084.E-041.0058.E-02C662.2371.E-041.6578.E-045.2666.E-042.9973.E-031.0454.E-04C67-7.8436.E-05-2.0036.E-05-8.1796.E-031.9677. E-029.5906.E-04C68-1.6423.E-044.8606.E-056.4213.E-034.6880.E-0 34.2914.E-04C69-5.1010.E-05-3.3848.E-051.2515.E-039.9434.E-036. 3688.E-03C70-2.0422.E-058.3353.E-05-8.2739.E-041.7590.E-036.5158.E-03C711.8381.E-05-8.6371.E-05-5.6593.E-035.9894.E-039.0832.E-03C723.0035.E-045.1866.E-045.4958.E-03-1.1378.E-03-8.8517.E-04C73-1.8458.E-04-2.4280.E-04-1.8470.E-03-2.8486.E-03-3.8235.E-03C747.9164. E-05-5.2365.E-05-2.5235.E-032.3691.E-033.3639.E-03C75-1.4059.E-052.1074.E-043.4161.E-031.5269.E-031.5639.E-03C76-4.9802.E-05-1.8541.E-04- 2.1630.E-03-2.8274.E-03-3.2073.E-03C775.9859.E-056.6968.E-055.2184.E-048.1284.E-041.2827.E-03C78-3.4513.E-056.4898.E-065.5950.E-041.2394. E-037.9983.E-04C793.5778.E-05-6.3089.E-06-6.4142.E-04-1.5407.E-03-1.1847.E-03C80-2.1767.E-05-6.1890.E-062.5038.E-046.3034.E-045.0467.E-04.

[0303] S9(F-FFS)S10(F-FFS)S11(H-FFS)S12(H-FFS)S13(H-FFS)R14.9640-21.264955.472715.243055.4727Nradius11.877012.410813.16818.935813. 1681K-1.4067.E+00-3.4396.E-011.1749.E-022.0518.E-021.1749.E-0 2ω-2.9693.E+012.6574.E+01-1.0903.E+02-3.1325.E+01-1.0903.E+02X Offset 1.9156.E-02-2.7027.E-02000Y Offset 1.9442.E+003.2228.E+00-3.9361.E-01-1.4137.E+00-3.9361.E-01C101.3127.E-012.7959.E-02000C11-2.7481.E-011.7917.E-012.2812.E+00-3.1439.E-012.2812.E+00C13-7.6279.E-017.1988.E-01 5.0754.E-02-7.1357.E-015.0754.E-02C14-8.4792.E-037.8679.E-02000C151.5700.E-01-2.7111.E-02000C162.8604.E-011.2500.E+001.3439.E+00-3.4205.E-011.3439.E+00C17-7.1972.E-011.5421.E+00- 1.0553.E+003.2598.E-01-1.0553.E+00C184.1135.E-031.1638.E-02000C19-1.2561.E-01-1.5836.E+00 1.4861.E-01-6.9502.E-011.4861.E-01C20-5.2344.E-015.8843.E-014.2917.E-011.2120.E-014.2917. E-01C21-6.9108.E-03-3.3352.E-02000C221.7781.E-02-6.1224.E-02000C23-7.8875.E-046.8189.E-012.2352.E-01-7.5936.E-022.2352.E-01C24-1.5046.E-019.3849.E-024.1335.E-017.4075.E-024.1335.E-01C25-5.3870.E-011.0495.E-01-1.7666.E+004.8390.E-01-1.7666.E +00C268.0522.E-012.0467.E-02000C27-2.0689.E-02-7.8107.E-04000C 28-1.1838.E-01-7.0699.E-01-2.4017.E-011.6908.E-01-2.4017.E-01C29-2.6833.E-012.5956.E-01-1.7355.E-017.3115.E-02-1.7355.E-01C30 -1.2967.E-026.3671.E-02000C31-1.7737.E-027.9611.E-03000C324.9482.E-021.6059.E-011.7578.E-013.8658.E-021.7578.E-01C33-8.5201.E -03-2.5067.E-01-1.6289.E-012.4384.E-02-1.6289.E-01C349.0868.E-012.9771.E-02000C35-1.4223.E+002.7766.E+001.7100.E-012.0424.E-0 21.7100.E-01C366.0500.E-022.5035.E-016.8427.E-01-7.7483.E-026.8427.E-01C375.8250.E-022.3801.E-02000C38-1.6583.E-024.6516.E-0 2000C39-9.6558.E-02-3.6325.E-01-3.3723.E-015.2123.E-02-3.3723. E-01C40-1.7583.E-01-1.3654.E-024.4209.E-02-2.8422.E-024.4209.E- 02C41-1.8761.E-024.2958.E-02000C42-2.7304.E-023.8247.E-03000C432.7156.E-02-3.9476.E-021.3410.E-021.3551.E-021.3410.E-02C444.3 936.E-02-1.4431.E-01-2.7711.E-01-1.8788.E-02-2.7711.E-01C452.5073.E+01-5.5233.E-011.1623.E+002.9164.E-011.1623.E+00C466.7556.E-011.2362.E-01000C474.2184.E-013.9840.E-02000C484.8187.E-017.8006.E-01-1.1147.E-01-4.4761.E-02-1.1147.E-01C492.0097.E-012.9 075.E-01-7.3012.E-02-2.5275.E-02-7.3012.E-02C50-4.4875.E-021.2158.E-02000C51-8.0220.E-032.3664.E-02000C52-1.6928.E-01-1.5983. E-01-1.9744.E-01-1.8177.E-02-1.9744.E-01C53-1.3441.E-01-1.7584 .E-01-5.5920.E-02-4.5624.E-03-5.5920.E-02C54-2.0454.E-021.7883. E-03000C55-1.5504.E-02-1.5197.E-02000C566.2929.E-02-6.2375.E-0 23.4896.E-022.3151.E-033.4896.E-02C575.3234.E-02-9.0908.E-02-1. 3107.E-01-2.0350.E-02-1.3107.E-01C583.2011.E+006.2661.E-01000C59-1.1650.E+029.1770.E+001.0211.E+00-2.7115.E-011.0211.E+00C60 4.5890.E+001.6598.E+003.0891.E-019.8788.E-023.0891.E-01C61-1.1238.E+00-1.2125.E-01000C624.5471.E-025.9392.E-02000C635.0864.E- 01-2.3494.E-011.0741.E-011.9620.E-021.0741.E-01C642.0372.E-014.1248.E-016.7876.E-02-1.9685.E-036.7876.E-02C65-1.2274.E-019.75 55.E-03000C66-6.2227.E-02-1.7338.E-02000C67-2.4714.E-01-7.0740 .E-02-4.9383.E-021.4967.E-02-4.9383.E-02C68-1.2136.E-01-1.9179.E-011.3849.E-011.7197.E-021.3849.E-01C69-1.4790.E-025.7759.E-03000C703.8384.E-031.7305.E-02000C718.9722.E-02-6.6575.E-031.2797.E-016.3167.E-031.2797.E-01C722.7316.E-02-7.4244. E-02-1.0272.E-021.7416.E-02-1.0272.E-02C73-3.5841.E-03-4.2172.E-02-3.1075.E-022.6029.E-04-3.1075.E-02C74-1.8794.E-02-1.5368.E-02-3.0770.E-02-1.2138.E-02-3.0770.E-02C75-2.0929. E-021.1782.E-022.5850.E-027.4117.E-032.5850.E-02C76-1.4325.E-02-6.5743.E-032.8517.E-023 .1048.E-032.8517.E-02C77-9.6992.E-04-3.1462.E-02-2.5602.E-02-9.3369.E-03-2.5602.E-02C785 .1315.E-038.9496.E-034.2856.E-028.1108.E-034.2856.E-02C79-1.0335.E-024.5133.E-02-4.6471. E-02-3.8122.E-03-4.6471.E-02C801.8062.E-02-3.8697.E-023.4779.E-028.5127.E-043.4779.E-02.

[0304] S14((H-FFS)S15(H-FFS)S16(H-FFS)S17(H-FFS)S18(H-FFS)R29.2048-42.2734-221.9199-18.6623-221.9199Nradius15.97758.460432.504710.110832.5047K-9.6831.E-03-1.0279.E+01-2.1173.E+01-1.2720.E+00-2.1173.E+01ω-3.2564.E+01-6.1526.E-01-3.2112.E+001.6136.E+01-3.2112.E+00X Offset00000Y Offset-2.4855.E+008.1865.E-011.8525.E+003.1605.E-011.8525.E+00C1000000C11-1.3361.E+00-2.0961.E+001.3356.E+00-8.8506.E-011.3356.E+00C13-4.5936.E-01-4.7499.E-02-1.0541.E+00-5.2248.E-01-1.0541.E+00C1400000C1500000C162.8277.E-013.0982.E-01-2.7099.E+00-9.2796.E-01-2.7099.E+00C17-5.3373.E-01-3.8872.E-01-6.4575.E-01-3.8385.E-03-6.4575.E-01C1800000C19-2.4691.E+00-5.5696.E-014.7213.E+00-1.0408.E-014.7213.E+00C20-2.6074.E-01-6.0902.E-02-7.4159.E-01-1.4292.E-01-7.4159.E-01C2100000C2200000C233.1198.E-015.2106.E-021.9153.E-01-1.1835.E-011.9153.E-01C24-3.8082.E-01-1.2817.E-03-1.4826.E+004.0887.E-03-1.4826.E+00C254.3518.E-01-2.2179.E-012.4990.E+01-6.5348.E-012.4990.E+01C2600000C2700000C28-7.5346.E-011.0770.E-017.7494.E-011.4016.E-017.7494.E-01C29-2.9818.E-028.5847.E-026.4640.E-01-5.8880.E-026.4640.E-01C3000000C3100000C321.2498.E-016.6517.E-03-5.3789.E-011. 8340.E-02-5.3789.E-01C33-8.0488.E-02-4.2308.E-02-3.1011.E-01-4.9789.E-03-3.1011.E-01C3400000C354.0930.E+00-5.3976.E-029.0620. E+013.7933.E-029.0620.E+01C362.3800.E-016.7836.E-02-2.5605.E+0 01.8869.E-01-2.5605.E+00C3700000C3800000C39-2.7579.E-013.9760.E -035.9587.E-01-2.7996.E-035.9587.E-01C403.5600.E-01-4.9555.E-03-4.7225.E-011.6930.E-03-4.7225.E-01C4100000C4200000C431.1822.E -02-6.2170.E-03-3.7966.E-015.3556.E-03-3.7966.E-01C44-4.2559.E -02-4.6754.E-03-1.4539.E-019.3497.E-03-1.4539.E-01C45-1.9972.E+ 001.9606.E-01-1.8447.E+02-4.2733.E-01-1.8447.E+02C4600000C4700000C487.5264.E-012.5872.E-02-2.6922.E+00-5.6092.E-02-2.6922.E+0 0C491.5760.E-01-1.7966.E-02-7.7884.E-02-2.8190.E-02-7.7884.E-0 2C5000000C5100000C52-1.0290.E-011.2733.E-024.7494.E-014.0302.E- 064.7494.E-01C539.9267.E-02-2.3293.E-02-4.8698.E-013.7820.E-03 -4.8698.E-01C5400000C5500000C56-8.7332.E-04-6.0706.E-03-2.1084.E-01-1.0743.E-02-2.1084.E-01C571.5801.E-022.1424.E-02-2.8292.E -02-2.1760.E-03-2.8292.E-02C5800000C59-4.2271.E+004.5423.E-027 .3999.E+019.7317.E-027.3999.E+01C60-1.6798.E+00-6.3306.E-022.6545.E+015.3103.E-022.6545.E+01C6100000C6200000C63-5.3247.E-02-4 .5287.E-03-5.0370.E+009.6749.E-03-5.0370.E+00C645.6514.E-037.3879.E-033.9215.E-01-4.1672.E-043.9215.E-01C6500000C6600000C671 .4303.E-01-6.0729.E-034.2415.E-01-4.2631.E-044.2415.E-01C68-4.2462.E-026.5549.E-03-4.0409.E-01-1.9736.E-03-4.0409.E-01C690000 0C7000000C713.1693.E-022.2151.E-03-6.8766.E-02-1.8416.E-04-6.8766.E-02C722.4099.E-021.3581.E-022.2246.E-02-6.7865.E-032.2246 .E-02C731.0998.E-02-7.8884.E-033.5610.E-024.1805.E-033.5610.E- 02C74-6.8821.E-03-1.2738.E-021.8671.E-024.6348.E-031.8671.E-02C 75-1.4187.E-021.3250.E-03-1.2968.E-03-5.8084.E-03-1.2968.E-03C 76-6.4638.E-039.1898.E-03-1.3705.E-027.6065.E-04-1.3705.E-02C77 7.5035.E-036.3289.E-04-1.0612.E-023.5357.E-03-1.0612.E-02C787.4133.E-03-7.5087.E-03-1.0488.E-04-3.5766.E-03-1.0488.E-04C79-5.6437.E-033.9764.E-033.4981.E-031.6875.E-033.4981.E-03C802.6160.E-04-5.4159.E-04-1.7108.E-02-4.0678.E-04-1.7108.E-02.

[0305] S19(F-FFS)S20(F-FFS)S21(F-FFS)S22(F-FFS)S23(F-FFS)R-22.3996113. 2482127.0774-186.9539-283.6529Nradius14.45957.19366.068710.2847 65.2112K3.9799.E+00-1.3301.E+00-2.6417.E+013.0428.E+014.8345.E- 01ω-1.7889.E+02-7.6755.E+008.0402.E+00-4.0659.E+00-4.5545.E+01X Offset-3.6711.E-012.1885.E-017.5937.E-02-4.4418.E-02-1.3226.E+00Y Offset9.7347.E+00-1.0288.E+00-6.9889.E-01-1.5720.E+003.3571.E+01C109.8477.E-01-2.418 4.E-017.6135.E-021.7720.E-01-2.6108.E+00C11-9.8295.E-01-2.3317.E-013.8029.E-01-1.2538 .E-01-2.1780.E-01C13-8.2529.E-01-1.5920.E-01-2.8771.E-02-5.5861.E-01-1.6084.E-01C14-1.1932.E-01-1.6708.E-01-1.0733.E-01-4.7641.E-021.6410.E+00C155.8582.E-02-8.0851.E-021. 6369.E-016.8854.E-02-2.1935.E+00C166.3427.E-01-2.0415.E-017.2260.E-02-1.1158.E-01-9.0498.E-01C172.7716.E-016.6508.E-027.1097.E-02-1.1505.E-011.1390.E+00C18-2.0840.E-016.3 334.E-02-4.7406.E-02-2.8325.E-014.2700.E-01C197.9014.E-013.6014.E-022.8971.E-02-1.1400.E-01-2.1835.E-02C20-4.1436.E-011.7416.E-02-2.9020.E-02-1.9037.E-01-4.9286.E-01C213.0134.E-038.6299.E-024.8413.E-026.5352.E-022.3596.E+00C22-9.5676.E-02-2.2338.E-02-2.0664.E-026.1403.E-025.7471.E+00C233.3640. E-028.8430.E-037.7887.E-03-4.4100.E-033.6497.E-01C242.8992.E-0 21.4513.E-021.3479.E-02-3.5136.E-022.3419.E+00C257.4301.E-01-1. 2489.E-011.0393.E-01-4.2820.E-02-6.1250.E-01C26-6.9784.E-03-8. 6781.E-026.4399.E-021.0112.E-016.6498.E-01C274.0132.E-02-4.893 8.E-03-1.2193.E-02-1.6245.E-021.7417.E+00C282.3835.E-01-2.6931.E-022.5263.E-02-1.0591.E-014.9384.E-01C29-2.7955.E-02-5.7155.E -044.6032.E-032.5894.E-031.1600.E+00C301.1811.E-032.6406.E-021.4190.E-02-2.8865.E-02-2.4190.E+01C311.1212.E-02-1.6829.E-03-1 .2565.E-026.4763.E-022.5845.E+00C32-5.3203.E-021.4601.E-024.12 97.E-043.8919.E-039.2048.E-01C339.5567.E-025.4554.E-031.0347.E- 035.2975.E-02-5.4149.E-01C34-4.0331.E-023.5043.E-026.3468.E-02-2.1871.E-012.9828.E+00C35-5.0109.E-012.8046.E-02-3.5549.E-03-4 .5117.E-011.7968.E+00C361.6665.E-01-3.7860.E-023.3579.E-022.7641.E-013.5547.E-01C37-4.2176.E-02-3.8130.E-027.7151.E-031.8491.E-01-1.4981.E+00C381.8205.E-035.2214.E-03-1.2304.E-036.5080.E-03-1.6314.E+00C396.0367.E-02-2.5842.E-03-8.8750.E-046.2805.E-0 3-2.4718.E+00C40-2.7270.E-021.5033.E-039.5658.E-042.0327.E-025.6364.E-01C41-2.2056.E-04-4.0801.E-031.9225.E-03-4.9425.E-03-3. 0248.E+00C426.0426.E-033.4285.E-03-6.4589.E-04-6.9758.E-024.5829.E+01C432.5079.E-02-1.3351.E-034.1868.E-051.1086.E-021.8510. E+00C44-4.8085.E-043.6574.E-03-1.0311.E-04-4.7541.E-02-2.1196.E+00C45-2.5580.E-01-6.0601.E-028.0546.E-034.2116.E-013.9080.E+0 0C465.7857.E-023.3401.E-02-3.0375.E-031.3884.E-02-5.1294.E+00C47-2.9101.E-021.7163.E-027.6041.E-03-2.4069.E-01-1.5591.E-01C4 8-7.2796.E-023.4542.E-02-2.1303.E-031.8595.E-01-3.8196.E-01C49 9.4362.E-022.9440.E-032.1317.E-035.7688.E-02-2.0124.E+00C50-1.1 497.E-03-8.1205.E-031.5780.E-03-6.6227.E-023.9758.E+00C512.226 0.E-032.5677.E-033.3529.E-042.4952.E-02-4.2669.E+00C522.8449.E- 037.8758.E-03-4.4801.E-045.7847.E-02-1.1179.E+00C535.8121.E-03-5.1491.E-041.2923.E-041.5565.E-031.8733.E-02C54-2.5763.E-03-1.6873.E-034.7145.E-053.2688.E-02-6.9308.E+00C55-1.3277.E-031.63 61.E-03-2.0571.E-04-1.0818.E-02-5.1766.E+00C564.5264.E-03-2.46 24.E-04-5.8938.E-05-1.3820.E-02-7.4119.E-01C57-6.0614.E-032.9572.E-041.0617.E-051.7902.E-027.0417.E-01C587.3136.E-021.4476.E- 029.1475.E-03-1.7550.E-01-1.1648.E+01C593.2740.E-02-2.0014.E-02-1.0194.E-021.1180.E-01-7.8012.E+00C60-9.5689.E-021.3719.E-02- 1.1902.E-03-7.6098.E-02-5.6172.E-01C611.6027.E-022.0939.E-021.8110.E-03-1.2305.E-011.9984.E-02C62-9.0713.E-04-5.0730.E-037.67 68.E-044.8648.E-021.9291.E+00C63-9.0152.E-02-1.4124.E-03-1.8525.E-038.7459.E-031.5411.E+00C646.4290.E-03-1.4327.E-03-5.4697.E -04-1.8649.E-02-4.7544.E+00C65-1.3092.E-03-1.6398.E-032.4754.E-04-1.1490.E-023.1644.E-01C66-7.3697.E-048.6950.E-048.8002.E-05 -2.8546.E-02-8.7768.E+00C67-6.7796.E-032.5991.E-032.4827.E-06-1.2212.E-028.8796.E+00C686.2754.E-04-1.6137.E-04-1.0885.E-054.4 375.E-033.0799.E+00C69-2.6047.E-04-3.8999.E-044.8692.E-06-1.82 86.E-02-1.8456.E+01C70-1.7819.E-033.1627.E-042.6927.E-051.5707.E-023.1180.E+01C71-1.4216.E-03-5.9546.E-05-3.2956.E-072.1694.E-02-1.4094.E+00 C727.3028.E-041.3730.E-05-1.0354.E-06-6.8607.E-031.1861.E+01C731.8833.E-043.45 60.E-056.0088.E-071.1834.E-02-8.1657.E+00C74-9.0647.E-059.7609.E-06-9.0740.E-0 8-1.9723.E-03-3.1135.E+00C751.8224.E-05-1.4329.E-069.2390.E-09-8.3476.E-035.59 83.E+00C76-9.9839.E-071.0713.E-07-2.4100.E-101.1799.E-022.8303.E-01C77-7.6509. E-074.5463.E-08-1.3600.E-10-1.0238.E-021.3128.E+01C784.0376.E-07-2.6438.E-083. 9000.E-117.7763.E-03-1.0006.E+01C79-7.5074.E-084.2080.E-09-5.0000.E-12-5.4625. E-03-6.4072.E+00C80-3.4418.E-081.8350.E-09-2.1410.E-132.2416.E-03-7.4495.E+00.

[0306]

[0307] FIGS. 34 to 39 are drawings illustrating an optical system and a camera module according to a sixth embodiment of the invention. In the configuration of the sixth embodiment, the same basic configuration as that of the first embodiment will be referred to in the configuration and description of the first embodiment, and a first lens (L1-1) is arranged between the first and second prisms P1, P2, and an area between the second prism (P2) and the third prism (P3) is arranged without a lens. The third prism, like the fourth embodiment, is a single-reflection prism without a total reflection surface.

[0308] Referring to FIGS. 34 to 38, an optical system (100C) or a camera module according to the sixth embodiment may include a first prism (P1) adjacent to an object, a third prism (P3) adjacent to an image sensor (10), and a second prism (P2) having a long length in the second direction (Y). The second prism (P2) has an incident side adjacent to the first prism (P1) and an exit side adjacent to the third prism (P3). At least one lens (L1-1) may be included between the incident sides of the first prism (P1) and the second prism (P2). A lens may be disposed between the incident sides of the second prism (P2) and the third prism (P3). A lens may be provided between the third prism (P3) and the image sensor (10), or the third prism (P3) may be disposed without a lens.

[0309] At least one or all of the lens surfaces of each of the first prism (P1), the first lens (L1-1), the second prism (P2), and the third prism (P3) may have a free-form surface of a non-rotationally symmetric shape. At least one or all of the fourth to sixth surfaces (S4-S6) of the first prism (P1) may have a free-form surface of a non-rotationally symmetric shape, for example, may have a Full-FFS (Freeform surface).

[0310] The second prism (P2) includes an incident-side transmission / total reflection surface, a plurality of reflection surfaces, and an exit-side transmission / total reflection surface, and the optical surface (S9-S16) of the second prism (P2) is a free-form surface having a non-rotationally symmetric shape, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). At least one or all of the incident surface (S17), the reflection surface (S18), and the exit-side surface (S19) of the third prism (P3) may have a free-form surface having a non-rotationally symmetric shape. At least one or all of the free-form surfaces of the third prism (P3) may have a Full-FFS (Freeform surface). Accordingly, since each of the second and third prisms (P2, P3) has at least one non-rotationally symmetric free surface among the plurality of optical surfaces, the degradation of optical performance caused by the second and third prisms (P2, P3) can be prevented. Since the third prism (P3) has at least one non-rotationally symmetric full free surface without a symmetry axis, the resolution and optical performance in the horizontal plane direction can be improved.

[0311] At least one or both of the incident side surface (S7) and the exit side surface (S8) of the first lens (L1-1) may have a free-form surface of a non-rotationally symmetric shape. At least one or both of the free-form surfaces of the first lens (L1-1) may have a Full-FFS (Freeform surface). The resolution and optical performance in the horizontal plane direction can be improved by the first lens (L1-1).

[0312]

[0313] As in the lens data of Fig. 38, the incident light passes from the third surface (S3) of the first prism (P1) to the nineteenth surface (S19) of the third prism (P3) and is incident on the image sensor (10). From the fourth surface (S4) to the nineteenth surface (S19), the fifth surface (S5) around the center of each surface, i.e., in the paraxial region, may have the absolute value of the maximum radius of curvature, and the sixth surface (S6) may have the minimum radius of curvature. The radius of curvature of the sixth and seventh surfaces (S6, S7) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. The surface having the maximum radius of curvature (absolute value) of the second prism (P2) may be the second transmission / total reflection surface (TS2: S14, S16). In the third prism (P3), the surface having the maximum radius of curvature may be a reflective surface (S18), and may be larger than the absolute value of the radius of curvature of the second transmission / total reflection surface (TS2). It can be seen that the local radii of curvature (local-rx, ry) in the first and second directions in the local paraxial regions of the fourth surface (S4) to the nineteenth surface (S19) are different from each other. It can be seen that the local focal lengths (Local-fx, fy) in the first and second directions (x, y) in the local paraxial regions of the fourth surface (S4) to the nineteenth surface (S19) are different from each other.

[0314]

[0315] As shown in Table 31, the local focal lengths (local_fx, local_fy) of the first prism (P1), the first lens (L1-1), and the third prism (P3) in the first direction (X) and the second direction (Y) are as follows. In the first prism (P1), the local focal length in the first direction (X) is greater than the local focal length in the second direction (Y). In the first lens (L1-1), the local focal length in the first direction (X) and the local focal length in the second direction (Y) have opposite signs. In the third prism (P3), the local focal length in the first direction (X) may be smaller than the absolute value of the local focal length in the second direction (Y).

[0316] P1L1-1P3local_fxlocal_fylocal_fxlocal_fylocal_fxlocal_fy11.3157.04671.692-17.5821.40446.241

[0317] For lenses or prisms other than the second prism (P2), the focal length can be calculated as shown in Table 31 above because the image-forming surface is formed outside the lens or prism. However, since the second prism has the strongest power and has the image-forming surface inside the prism, calculation of the focal length is impossible, and therefore it is not listed in Table 31 above.

[0318] The power from the first prism (P1) to the third prism (P3) is the largest at the second prism (P2), and the composite local focal distance (F(S3:S8)) from the first prism (P1) to the first lens (L1-1) has the same sign as the local focal distances in the first direction (X) and the second direction (Y), thereby canceling out the aberration occurring at the second prism (P2). In addition, since the composite local focal distances in the first and second directions from the first prism (P1) to the first lens (L1-1) have positive values, the second prism (P2) can be miniaturized.

[0319] As shown in Table 32, the first and second direction composite local focal lengths (F(S17:S19)) of the third prism (P3) can be made to have the same sign to cancel out aberrations occurring in the second prism (P2). Here, F(S3:S8) is the composite local focal length of the object-side lens and prism of the second prism (P2), and F(S17:S19) is the composite local focal length of the sensor-side prism of the second prism (P2).

[0320] F(S3:S8)F(S17:S19)local_fxlocal_fylocal_fxlocal_fy10.25410.10721.40446.241

[0321] When the refractive indices of the first prism (P1), the first lens (L1-1), the second prism (P2), and the third prism (P3) are defined as Nd1, Nd2, Nd3, and Nd4, the following conditions can be satisfied.

[0322] Condition 1: Nd1,Nd2 < Nd3 Condition 2: Nd1 < Nd2

[0323] Condition 3: Nd4 < Nd3

[0324] When the Abbe numbers of the first prism (P1), the first lens (L1-1), the second prism (P2), and the third prism (P3) are defined as Vd1, Vd2, Vd3, and Vd4, the following conditions can be satisfied.

[0325] Condition 1: Vd2 < Vd1 Condition 2: Vd3 < Vd1

[0326] Condition 3: Vd4 < Vd1

[0327]

[0328] Fig. 39 is a spot diagram of an optical system according to the sixth embodiment, showing improved optical performance for nine fields. Distortion in the optical system is less than 3%, and the rotational symmetry of the incident CRA of the imaging surface is less than ±3 degrees.

[0329] The invention can reduce the thickness (T) of the third direction (Z) of the optical system by arranging first to third prisms (P3) that provide a light reflection path between the object and the image sensor (10). The optical system according to the fifth embodiment can satisfy conditional expressions 1 to 3 of the first embodiment.

[0330] Tables 33 to 36 below show the radius of curvature (R) of the conic axis of the fourth to nineteenth surfaces (S19), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80), and the dimensions (uk, m). The FFS (C10-C80) and the dimensions (uk, m) are shown in Fig. 50.

[0331] S4(F-FFS)S5(F-FFS)S6(F-FFS)S7(F-FFS)S8(F-FFS)R14.093-38011.8755.3128.086-134.744Nradius3.3084.4864.1369.47111.651K00000ω0002.612.E-140X Offset1.030.E-024.958.E-01-5.807.E-03-9.938.E-03-9.964.E-03Y Offset1.466.E-016.549.E-017.373.E-01-9.538.E-022.798.E+00C10-9.545.E-02-5.649.E-021.031.E-02-1.826.E -02-1.117.E-01C111.214.E-01-3.966.E-025.729.E-02-1.342.E-012.735.E-01C13-3.423.E-01-5.417.E-04-1.909 .E-01-3.637.E-011.127.E+00C14-2.131.E-023.622.E-032.243.E-021.540.E-02-9.382.E-02C153.271.E-032.634. E-033.439.E-048.482.E-03-1.024.E-01C161.172.E-02-2.843.E-033.593.E-016.159.E-011.357.E+00C173.536.E-0 2-4.240.E-03-2.094.E-01-5.816.E-011.656.E+00C189.487.E-04-5.442.E-033.660.E-044.563.E-02-1.581.E-01C 191.139.E-03-8.426.E-045.375.E-026.782.E-01-2.501.E+00C206.509.E-02-2.073.E-03-1.723.E-01-1.699.E-01 7.459.E-01C211.095.E-035.667.E-041.702.E-035.874.E-03-6.056.E-02C224.844.E-03-1.443.E-03-6.212.E-032 .226.E-02-2.437.E-02C237.729.E-03-1.036.E-035.135.E-021.276.E-017.921.E-01C24-3.639.E-032.089.E-04-2.618.E-03-8.978.E-022.692.E-01C25-4.382.E-026.051.E-031.209.E-0 12.898.E-013.462.E-02C26-5.101.E-033.732.E-03-1.581.E-022.583.E -011.888.E-01C271.558.E-031.585.E-03-7.796.E-04-6.727.E-03-7.1 23.E-02C28-1.172.E-027.189.E-046.664.E-022.957.E-01-9.895.E-01C 299,209.E-043,922.E-041,597.E-02-6,254.E-023,848.E-01C30-2,917.E-041,539.E-04-8,123.E-034,317.E-04-2,268.E-02C31-5,289.E-04-3 .492.E-04-1.115.E-021.416.E-021.028.E-02C32-2.174.E-033.551.E- 052.217.E-026.110.E-022.416.E-01C33-3.569.E-059.953.E-052.670.E -026,611.E-02-1,228.E-01C34-6,787.E-031,928.E-033,949.E-034,034.E-011,374.E-01C354,407.E-036,699.E-03-1,145.E-01-1,106.E-019. 145.E-01C367.922.E-03-7.142.E-04-2.379.E-021.683.E-012.855.E-01C375.350.E-04-3.191.E-03-9.518.E-036.753.E-024.216.E-02C38-2.1 17.E-03-6.267.E-04-4.254.E-03-6.739.E-03-2.492.E-02C393.446.E- 03-1.154.E-03-6.816.E-021.246.E-01-4.662.E-01C40-6.201.E-032.59 4.E-041.047.E-02-2.699.E-021.280.E-01C411.049.E-04-4.952.E-04-1.103.E-03-3.653.E-03-1.462.E-02C42-5.435.E-042.625.E-04-1.741.E-038.708.E-033.518.E-02C436.012.E-04-5.849.E-06-1.375.E-032.6 87.E-023.635.E-02C446.093.E-04-5.074.E-043.872.E-031.089.E-01-3 .728.E-02C457.875.E-04-7.243.E-031.696.E-021.128.E+01-5.959.E- 01C46-3.454.E-03-1.323.E-02-3.653.E-02-1.163.E-021.639.E-01C473 .497.E-03-2.659.E-036.514.E-032.154.E-022.277.E-02C481.850.E-0 3-5.921.E-043.342.E-024.596.E-01-1.603.E-01C49-1.581.E-031.189. E-04-7.715.E-022.015.E-013.449.E-01C505.294.E-04-2.555.E-04-4.243.E-031.563.E-026.089.E-03C511.002.E-03-5.867.E-05-2.316.E-03 -6.874.E-03-1.546.E-02C52-2.100.E-042.881.E-042.341.E-021.043. E-01-2.370.E-01C533.271.E-03-1.199.E-04-8.893.E-03-3.804.E-02-3 .557.E-02C543.986.E-06-9.723.E-05-3.231.E-03-5.866.E-03-1.855.E-02C553.654.E-04-1.628.E-04-4.629.E-056.315.E-035.642.E-02C56- 3.729.E-045.186.E-06-1.254.E-021.091.E-022.169.E-02C57-2.523.E-046.654.E-051.776.E-021.023.E-017.571.E-03C58-4.608.E-039.310. E-041.058.E-022.845.E-027.666.E-01C592.368.E-03-3.465.E-03-4.10 0.E-032.743.E+019.978.E-01C60-3.056.E-03-3.456.E-046.578.E-031.623.E-018.191.E-01C617.251.E-042.142.E-03-1.538.E-034.586.E-015.994.E-02C62-1.073.E-031.102.E-034.121.E-03-3.060.E-02-8.625.E -03C63-3.262.E-045.343.E-04-3.667.E-02-2.187.E-02-6.411.E-01C64-1.108.E-05-3.256.E-043.726.E-021.913.E-014.301.E-01C65-3.539. E-041.070.E-04-4.877.E-054.203.E-03-4.777.E-03C66-2.681.E-041. 103.E-042.246.E-04-6.353.E-03-2.165.E-02C67-5.537.E-047.275.E-0 5-3.977.E-047.569.E-02-1.274.E-01C68-1.189.E-03-1.298.E-04-1.525.E-02-5.721.E-02-2.305.E-02C69-3.165.E-052.049.E-043.909.E-04 -4.851.E-03-1.590.E-02C70-2.932.E-041.776.E-048.350.E-045.587. E-038.166.E-02C713.533.E-051.098.E-046.879.E-032.471.E-036.752. E-02C725.516.E-052.159.E-04-1.192.E-025.469.E-022.542.E-02C73- 4.922.E-04-2.090.E-041.188.E-025.318.E-03-3.402.E-03C743.341.E- 041.774.E-05-8.502.E-03-1.353.E-02-3.494.E-02C75-4.430.E-055.002.E-046.096.E-03-1.181.E-02-1.581.E-02C76-2.043.E-04-6.075.E-0 4-2.984.E-03-6.073.E-033.353.E-03C771.720.E-041.356.E-045.899.E-04-5.819.E-03-1.327.E-03C78-1.211.E-042.868.E-045.355.E-04-1.935.E-022.796.E-02C79-8.609.E-05-1.870.E-04-3.831.E-04-4.003.E-025.842.E-02C80-3.820.E-061.963.E-051.656.E-042.914.E-02-7.255.E-02.

[0332] S9(H-FFS)S10(H-FFS)S11(H-FFS)S12(H-FFS)S13(H-FFS)R76.42818.51276 .42829.427-53.135Nradius12.5598.41812.55915.7438.038K00000ω00000X Offset00000Y Offset-3.222.E-01-1.424.E+00-3.222.E-01-2.504.E+007.169.E-01C1000000C112.291.E+00-3.032.E-012.291.E+00-1.306.E+00-2.035.E+00C13-1.496.E-01-8.790.E-01-1.496.E-01-7.257.E-01-1.644.E-01C1400000C1500000C161.334.E+00-2. 923.E-011.334.E+005.151.E-012.203.E-01C17-1.378.E+002.290.E-01-1.378.E+00-4.518.E-01-4.096.E-01C1800000C193 .977.E-01-7.781.E-013.977.E-01-2.104.E+00-3.253.E-01C202.195.E-014.734.E-022.195.E-01-4.481.E-01-1.175.E-01 C2100000C2200000C231.900.E-01-6.829.E-021.900.E-013.688.E-013.150.E-02C243.482.E-017.166.E-023.482.E-01-3.2 92.E-01-7.479.E-03C25-1.708.E+002.582.E-01-1.708.E+001.114.E+00-3.154.E-01C2600000C2700000C288.354.E-029.55 0.E-028.354.E-02-6.521.E-011.453.E-01C29-3.054.E-017.772.E-02-3.054.E-01-2.105.E-016.477.E-02C3000000C31000 00C321.229.E-014.065.E-021.229.E-011.489.E-012.909.E-03C33-1.974.E-014.395.E-02-1.974.E-013.463.E-02-4.727.E-02C3400000C354.735.E-011.770.E-024.735.E-013.711.E+005.678.E-01C369.441.E-01-1.236.E-019.441.E-014.382.E-019.370.E-02C37000 00C3800000C39-1.568.E-013.517.E-02-1.568.E-01-2.439.E-01-1.499 .E-02C401.208.E-02-1.005.E-021.208.E-022.838.E-01-3.501.E-03C41 00000C4200000C43-1.902.E-021.463.E-02-1.902.E-022.337.E-02-5.718.E-03C44-3.804.E-01-5.830.E-03-3.804.E-013.029.E-02-9.790.E-0 3C451.589.E+004.595.E-011.589.E+004.409.E+00-4.806.E-01C4600000C4700000C48-1.893.E-012.552.E-02-1.893.E-017.769.E-013.542.E-0 2C492.917.E-02-5.557.E-022.917.E-021.538.E-01-1.813.E-03C50000 00C5100000C52-1.873.E-01-1.073.E-03-1.873.E-01-1.180.E-01-1.604 .E-02C53-5.833.E-02-2.642.E-02-5.833.E-021.282.E-01-1.641.E-02 C5400000C5500000C56-2.899.E-03-7.464.E-03-2.899.E-03-6.770.E-03 -7.433.E-03C57-1.945.E-01-2.373.E-02-1.945.E-012.970.E-021.808 .E-02C5800000C591.391.E+00-2.309.E-011.391.E+008.370.E+001.405. E-01C603.436.E-01-7.435.E-023.436.E-013.805.E-011.067.E-01C6100000C6200000C633.160.E-01-2.766.E-023.160.E-011.428.E-02-3.849.E-02C644.236.E-021.334.E-024.236.E-02-6.038.E-029.953.E-04C6500000C6600000C67-3.781.E-037.900.E-03-3.781.E-034.356.E-027.900.E-03C682.017.E-012.174.E-032.017.E-01-2.360.E-023.964.E-03C69000 00C7000000C716.517.E-021.225.E-026.517.E-02-9.339.E-032.329.E-03C72-8.715.E-027.287.E-03-8.715.E-022.567.E-021.395.E-02C73-2.974.E-018.554.E-03-2.974.E-017.435.E-03-4.680.E-03C74-4.315.E-02 -7.861.E-03-4.315.E-02-1.503.E-02-1.099.E-02C75-3.524.E-03-8.562.E-04-3.524.E-03-2.072.E-02-8.809.E-04C76-2.522.E-044.573.E-03-2.522.E-04-4.900.E-036.555.E-03C773.503.E-02-2.565.E-033.503.E -021.276.E-022.816.E-03C788.795.E-03-9.791.E-048.795.E-039.084.E-03-4.089.E-03C79-4.647.E-028.627.E-04-4.647.E-02-1.058.E-02-9.929.E-04C804.123.E-021.977.E-044.123.E-028.492.E-041.256.E-03.

[0333] S14(H-FFS)S15(H-FFS)S16(H-FFS)R1122.996-18.6161122.996Nradius32.6789.75132.678K000ω000X Offset000Y Offset1.834.E+004.106.E-011.834.E+00C10000C116.142.E-01-1.117.E+006.142.E-01C13-8.862.E-01-6.139.E-01-8.862.E-01C14000C15000C16-3.122.E+00-9.304.E-01-3.122.E+00C17-1.911.E-012.761.E-02-1.911.E-01C18000C194.786.E+00-1.653.E-014.786.E+00C20-5.888.E-01-2.041.E-01-5.888.E-01C21000C22000C231.470.E-01-1.335.E-011.470.E-01C24-1.308.E+002.771.E-02-1.308.E+00C252.745.E+01-5.632.E-012.745.E+01C26000C27000C287.304.E-011.200.E-017.304.E-01C297.922.E-01-6.106.E-027.922.E-01C30000C31000C32-5.195.E-01-4.387.E-03-5.195.E-01C33-1.875.E-012.262.E-03-1.875.E-01C34000C358.268.E+01-6.484.E-028.268.E+01C36-1.986.E+002.187.E-01-1.986.E+00C37000C38000C396.067.E-017.455.E-036.067.E-01C40-3.095.E-011.371.E-02-3.095.E-01C41000C42000C43-3.745.E-011.226.E-03-3.745.E-01C44-5.486.E-021.059.E-02-5.486.E-02C45-1.597.E+02-3.915.E-01-1.597.E+02C46000C47000C48-6.894.E+00-9.262.E-02-6.894.E+00C497.832.E-02-2.942.E-027.832.E-02C50000C51000C524.048.E-011.306.E-024.048.E-01C53-3.394.E-014.294.E-03-3.394.E-01C54000C550 00C56-2.234.E-01-3.762.E-03-2.234.E-01C575.812.E-029.959.E-045.812.E-02C58000C597.134.E+012.627 .E-017.134.E+01C603.456.E+01-5.168.E-023.456.E+01C61000C62000C63-6.515.E+00-3.916.E-02-6.515.E+00C644.903.E-011.220.E-024.903.E-01C65000C66000C673.072.E-01-1.267.E-023.072.E-01C68-3.247.E-0 17.428.E-04-3.247.E-01C69000C70000C71-9.235.E-021.566.E-03-9.235.E-02C721.130.E-01-7.595.E-031.130.E-01C731.229.E-013.756.E-041.229.E-01C749.704.E-024.595.E-039.704.E-02C755.918.E-02-3.383. E-035.918.E-02C761.838.E-022.051.E-041.838.E-02C77-1.328.E-021.831.E-03-1.328.E-02C78-3.187.E-0 2-2.909.E-03-3.187.E-02C79-3.655.E-022.572.E-03-3.655.E-02C80-2.985.E-02-1.157.E-03-2.985.E-02.

[0334] S17(F-FFS)S18(F-FFS)S19(F-FFS)R-29.8772653.718-233.483Nradius13.15810.57268.955K000ω000X Offset-1.712.E-01-7.953.E-01-1.937.E+00Y Offset 1,025.E+011,531.E-013,367.E+01C 101,013.E+00-3,162.E-02-1,419.E+00C 112,905.E-01-1,714.E-02-2,188.E-01C 13-1,064.E+00-1,228.E-01-1,961.E-01C 14-2,406.E-017,480.E-028,232.E-01C 15-8,953.E-02-8,107.E-02-1,973.E-01C 16 1,277.E+004,288.E-02-4,075.E-01C17-2,399.E-01-8,248.E-025,544.E-01C18-4,804.E-024,560.E-027,883.E-01C191,031.E+002,079.E-025,640.E-02C20-3,052.E-01-3,540.E-02-2,565.E-01C211,422.E-026,589.E-028,069.E-01C222,284.E-03- 7,013,E-021,043,E+00C23-2,775,E-02-5,207,E-034,577,E-01C24-8,337,E-03-1,640,E-024,651,E-01C258,262,E-016,752,E-02-2,689,E-01C261,989,E-021,933,E-03-1,097,E+00C271,905,E-022,679,E-02-3,583,E-01C283,508,E-01-2,857,E-0 21,741.E-01C29-4,363.E-02-5,974.E-022,752.E-01C30-2,459.E-032,620.E-02-1,310.E-01C316,688.E-03-3,161.E-02-1,321.E+00C32-8,814.E-025,625.E-033,881.E-01C331,317.E-01-8,614.E-03-6,792.E-01C34-4,927.E-036,611.E-02-6,842.E-01C35-4,878.E-01-1,128.E-016,329.E-01C363,170.E-01-1,684.E-022,343.E-02C37-1,524.E-021,432.E-021,001.E+00C382,066.E-03-1,4 70.E-031.067.E+00C398.153.E-022.993.E-02-3.818.E-01C40-4.878.E-02-6.827.E-032.831.E-01C41-3.034.E-03-1.070.E-025.479.E-01C42- 8,514.E-046,768.E-03-1,536.E+00C433,572.E-02-5,511.E-04-4,788.E-01C44-3,965.E-035,570.E-036,959.E-01C45-2,712.E-01-1,275.E-01 5,788,E-01C461,389,E-02-8,343,E-021,393,E+00C47-9,884,E-033,860,E-021,334,E+00C48-1,697,E-01-1,174,E-022,160,E-01C491,358,E-0 13.941.E-02-2.288.E-01C50-2.405.E-031.648.E-02-2.470.E+00C51-1 .087.E-03-1.627.E-02-9.388.E-02C521.308.E-02-2.155.E-02-4.929.E -02C539.017.E-03-4.505.E-03-6.039.E-02C54-2.516.E-04-6.971.E-0 3-1.486.E+00C55-1.055.E-039.094.E-03-8.007.E-01C564.824.E-034.5 33.E-031.221.E+00C57-7.489.E-031.349.E-03-7.154.E-01C581.705.E -02-2.047.E-014.236.E-02C591.400.E-011.433.E-016.956.E-01C60-1. 009.E-01-4.087.E-025.510.E-01C615.363.E-03-4.821.E-02-1.422.E+ 00C62-2.003.E-031.635.E-022.567.E-01C63-1.453.E-01-1.920.E-024.736.E-01C649.350.E-03-6.694.E-035.043.E-01C655.034.E-041.502.E-02-3.889.E -01C66-1.553.E-04-4.485.E-031.926.E+00C67-6.626.E-03-1.269.E-02-7.233.E-01 C681.777.E-033.492.E-038.934.E-01C693.281.E-046.560.E-041.477.E+00C704.660 .E-048.373.E-03-9.436.E-01C71-2.369.E-031.632.E-031.815.E-02C721.603.E-03- 8.528.E-044.463.E-01C73-6.520.E-05-2.539.E-044.670.E+00C74-5.782.E-053.806 .E-05-2.077.E+00C752.419.E-05-1.450.E-052.306.E+00C76-5.997.E-064.600.E-06 3.115.E+00C778.304.E-07-1.494.E-06-2.229.E+00C788.278.E-084.543.E-073.677. E+00C79-9.492.E-08-1.346.E-07-5.884.E+00C801.206.E-082.071.E-083.018.E+00.

[0335]

[0336] FIGS. 42 to 49 are drawings showing an optical system and a camera module according to the seventh embodiment. In the configuration of the seventh embodiment, the configuration of the second prism (hereinafter defined as a prism) of the first embodiment will refer to the configuration and description of the first embodiment, and is a configuration in which the first and third prisms are removed based on the first embodiment, and may include a plurality of lenses on the incident side of the prism and a plurality of lenses on the output side. The plurality of lenses arranged on the incident side of the prism (P2) may include first and second lenses (L1-1, L1-2). The plurality of lenses arranged on the output side of the prism (P2) may include third and fourth lenses (L2-1, L2-2).

[0337] The incident side of the prism (P2) and the first and second lenses (L1-1, L1-2) may be arranged in a first direction, and the exit side of the prism (P2) and the third and fourth lenses (L2-1, L2-2) may be arranged in the first direction. The incident side surface (S7) and the exit side surface (S14) of the prism (P2) may be spaced apart in a second direction. The first lens (L1-1) may have a shape in which both sides are convex or concave on the paraxial region. The second lens (L1-2) may have a shape in which both sides are convex or concave on the paraxial region. The third lens (L2-1) may have a meniscus shape convex toward an object or a sensor on the paraxial region. The third lens (L2-2) may have a meniscus shape convex toward an object or a sensor on the paraxial region. At least one or all of the lens surfaces of each of the first lens (L1-1), the second lens (L2-1), the prism (P2), the third lens (L2-1), and the fourth lens (L2-2) may have a free-form surface of a non-rotationally symmetric shape.

[0338] As shown in (a) of FIGS. 41, 42, and 43, at least one or both of the incident side surface (S3) and the exit side surface (S4) of the first lens (L1-1) may have a freeform surface of a non-rotationally symmetric shape. The first surface (S3) of the first lens (L1-1) may have a Half-FFS (Freeform surface), and the second surface (S4) may have a Full-FFS (Freeform surface). As shown in (b) of FIGS. 41, 42, and 43, at least one or both of the incident side surface (S5) and the exit side surface (S6) of the second lens (L1-2) may have a freeform surface of a non-rotationally symmetric shape. At least one or both of the freeform surfaces of the second lens (L1-2) may have a Full-FFS (Freeform surface).

[0339] The second lens (L1-2) adjacent to the object side of the prism (P2) may have different thicknesses at the top (end in the +Y direction) and the bottom (end in the -Y direction) in the second direction (Y) based on the center. That is, the top of the second lens (L1-2) in the second direction (Y) may be thicker than the bottom. The second lens (L1-2) may have a wedge-shaped side cross-section. The top and bottom of the second lens (L1-2) are thicknesses of both edges of the effective area in the second direction passing through the center.

[0340] When the upper thickness of the second lens (L1-2) is L2_ET1 and the lower thickness is L2_ET2, the following conditions can be satisfied.

[0341] Condition: L2_ET1 / L2_ET2 > 1.5

[0342] The thickness ratio of the upper / lower portions of the second lens (L1-2) may be greater than 1.5, for example, in the range of 2 to 3.5 or in the range of 2.5 to 3. Accordingly, aberration correction may be possible by providing different powers due to the thickness difference at the two edges in the second direction of the second lens (L1-2). Since the upper thickness of the second lens (L1-2) is provided to be thicker than the lower thickness, light refracted through the second lens (L1-2) may be incident on the entire area of ​​the incident surface (S7) of the prism (P2).

[0343]

[0344] As shown in FIGS. 40 to 42 and 44, the prism (P2) includes an incident-side transmission / total reflection surface (TS1), a plurality of reflection surfaces, and an exit-side transmission / total reflection surface (TS2), and the optical surfaces (S7 to S14) of the second prism (P2) are free-form surfaces having a non-rotationally symmetric shape, and at least one or both of the free-form surfaces may have a Half-FFS (Freeform surface). As shown in FIGS. 40 to 42 and (a) of FIG. 45, at least one or both of the incident-side surface (S15) and the exit-side surface (S16) of the third lens (L2-1) may have a non-rotationally symmetric free-form surface, for example, may have a Full-FFS (Freeform surface). As shown in FIGS. 40 to 42 and (b) of FIG. 45, at least one or both of the incident side surface (S17) and the exit side surface (S18) of the fourth lens (L2-2) may have a free-form surface of a non-rotationally symmetric shape, for example, a Full-FFS (Freeform surface).

[0345] The above prism (P2) may include a transmission / total reflection surface (TS1, TS2) on each of the incident side and the output side. The transmission / total reflection surface (TS1, TS2) transmits light traveling along the incident side or the output side path, and reflects light reflected by another reflective surface along another path. The first transmission / total reflection surface (TS1) includes a seventh surface (S7) that transmits light incident through the second lens (L1-2), and a ninth surface (S9) that transmits light transmitted through the seventh surface (S7) and reflected by the reflective surface (S8). The second transmission / total reflection surface (TS2) includes a twelfth surface (S12) that totally reflects light reflected by the eleventh surface (S11), and a fourteenth surface (S14) that transmits light totally reflected by the twelfth surface (S12) and then reflected by the thirteenth surface (S13). The first transmission / total reflection surface (TS1) on the incident side and the second transmission / total reflection surface (TS2) on the exit side of the prism (P2) include transmission surfaces (S7, S14) and total reflection surfaces (S9, S12).

[0346] Since the above-mentioned transmission / total reflection surfaces (TS1, TS2) are arranged on the incident side and the exit side of the prism (P2), the size of the prism (P2) in the second direction can be reduced. Since the first transmission / total reflection surface (TS1) on the incident side and the second transmission / total reflection surface (TS2) on the exit side of the prism (P2) are arranged as free-form surfaces having a non-rotationally symmetric shape, the incident light can be dispersed and aberration correction can be efficiently performed. The first transmission / total reflection surface (TS1) or the incident surface (S9) of the prism (P2) can have a concave shape in the cross-sections (XY cross-sections) in the first and second directions. Accordingly, the light incident through the incident surface (S9) can be dispersed.

[0347] The incident-side transmission / total reflection surface, the plurality of reflection surfaces, and the exit-side transmission / total reflection surface of the prism (P2) have free-form surfaces of non-rotationally symmetrical shapes, and at least one or all of the free-form surfaces may have a Half-FFS (Freeform surface). The coefficient of the Half-FFS is smaller than that of the Full-FFS, and 70 or more are required. At least one, two, or all of the seventh to fourteenth surfaces (S7) to fourteenth surfaces (S14) of the second prism (P2) may be provided as free-form surfaces having non-rotationally symmetrical shapes. Accordingly, deterioration of the optical performance of a high-resolution optical system can be prevented.

[0348] As in the lens data of Fig. 46, the incident light passes through the second surface (S2) to the eighteenth surface (S18) and is incident on the image sensor (10). From the third surface (S3) to the eighteenth surface (S18), the sixteenth surface (S16) around the center of each surface, i.e., in the paraxial region, may have an absolute value of the maximum radius of curvature, and the eighth surface (S8) may have a minimum radius of curvature. The radius of curvature of the third and fourth surfaces (S3, S4) of the first lens (L1-1) may be 100 mm or less, for example, 80 mm or less or 50 mm or less. The radius of curvature of the fifth and sixth surfaces (S5, S6) of the second lens (L1-2) may be 150 mm or less, for example, in the range of 10 mm to 150 mm. The surface having the maximum radius of curvature (absolute value) of the prism (P2) may be the second transmission / total reflection surface (TS2: S12, S14). The exit-side surface (S16) of the third lens (L2-1) may have a radius of curvature that is at least five times larger than the radius of curvature of the entrance-side surface (S15). The exit-side surface (S16) of the fourth lens (L2-2) may have a radius of curvature that is at least five times larger than the radius of curvature of the entrance-side surface (S18).

[0349] In the lens data of Fig. 46, it can be seen that the radii of curvature (local-rx, ry) in the first and second directions in the paraxial regions of the third surface (S3) to the eighteenth surface (S18) are different from each other. It can be seen that the focal lengths (Local-fx, fy) in the first and second directions (x, y) in the paraxial regions of the third surface (S3) to the eighteenth surface (S18) are different from each other.

[0350]

[0351] As shown in Table 37, the focal lengths (local_fx, local_fy) of the first lens (L1-1), the second lens (L1-2), the third lens (L2-1), and the third lens (L2-2) in the first direction (X) and the second direction (Y) are as follows. In the first lens (L1-1), the focal length in the first direction (X) is greater than the focal length in the second direction (Y). In the first lens (L1-1), the focal length in the first direction (X) and the focal length in the second direction (Y) have the same positive value. In the second lens (L1-2), the focal length in the first direction (X) and the focal length in the second direction (Y) have the same negative value. In the third lens (L2-1), the focal length in the first direction (X) has the same positive value as the focal length in the second direction (Y), and is smaller than the absolute value of the focal length in the second direction (Y). In the third lens (L2-2), the focal length in the first direction (X) has a different sign from the focal length in the second direction (Y) and is greater than the absolute value of the focal length in the second direction (Y).

[0352] L1-1L1-2local_fxlocal_fylocal_fxlocal_fy24.02319.78-76.197-23.56L2-1L2-2local_fxlocal_fylocal_fxlocal_fy8.80519.982250.62-44.762

[0353] When the refractive indices of the first lens (L1-1), second lens (L1-2), prism (P2), third lens (L2-1), and fourth lens (L2-2) are defined as Nd1, Nd2, Nd3, Nd4, and Nd5, the following conditions can be satisfied.

[0354] Condition 1: Nd1,Nd2 < Nd3 Condition 2: Nd4 < Nd3

[0355] Condition 3: Nd4 < Nd5 Condition 4: Nd3 < Nd5

[0356] When the Abbe numbers of the first lens (L1-1), second lens (L1-2), prism (P2), third lens (L2-1), and fourth lens (L2-2) are defined as Vd1, Vd2, Vd3, Vd4, and Vd5, the following conditions can be satisfied.

[0357] Condition 1: Vd2 < Vd1 Condition 2: Vd2,Vd3 < Vd1

[0358] Condition 3: Vd1,Vd2,Vd3 < Vd4 Condition 4: Vd5 < Vd4

[0359]

[0360] As shown in Fig. 47, the optical system, i.e., the prism (P2), may have an intermediate imaging plane (M1). The intermediate imaging plane (M1) may be arranged on an optical path within the prism (P2). Within the prism (P2), the intermediate imaging plane (M1) may be arranged on an optical path between the eighth surface (S8), which is a first reflective surface facing the incident surface (S7), and the tenth surface (S10), which is a second reflective surface adjacent thereto. Here, the ninth surface (S9) between the eighth surface (S8) and the tenth surface (S10) is a total reflective surface and may face parts of the first and second reflective surfaces (S8, S10). The tenth surface (S10), which is a second reflective surface, is a subsequent reflective surface of the intermediate imaging plane (M1), and the intermediate imaging plane (M1) may have different imaging positions between the reference ray and the sub-rays.

[0361] As shown in Fig. 48, the incident angle (R4) of the reference ray (L100) on the 10th surface (S10), which is the second reflective surface, may be less than 45 degrees with respect to a straight line perpendicular to the tangent line of the 10th surface (S10), and may satisfy the following conditions.

[0362] Condition: 0 < R4 < 45 degrees

[0363] By suppressing the incidence angle of the reference ray (L100) according to the above conditions, the eccentric aberration can be reduced and the deterioration of the optical performance can be prevented. Preferably, 20 degrees < R4 < 40 degrees can be satisfied. The effective area of ​​the tenth surface (S10) within the prism (P2) can be smaller than the effective areas of each of the incidence surface (S7) and the emission surface (S18). Accordingly, the size of the prism (P2) in the third direction can be reduced. In addition, the tenth surface (S10) can have an effective area smaller than the areas of other reflective surfaces within the prism.

[0364] Fig. 49 is a spot diagram of an optical system according to the seventh embodiment, showing improved optical performance for nine fields. Distortion in the optical system is less than 3%, and the rotational symmetry of the incident CRA of the imaging surface is less than ±3 degrees.

[0365] The invention can reduce the thickness (T) of the third direction (Z) of the optical system by arranging a prism (P2) that provides a light reflection path between the object and the image sensor (10). Here, when the effective diagonal length of the image sensor (10) is D, the following conditional expression 1 can be satisfied. In FIG. 52, the diagonal length (Img2H) of the image sensor (10) is equal to the effective diagonal length (D).

[0366] Condition 1: T / D < 0.70

[0367] Condition 1 preferably satisfies 0.45 < T / D < 0.70. Accordingly, it is possible to provide a configuration of an optical system having a high resolution (e.g., 50M or more) of a large sensor of 1 inch or more by minimizing the configuration thereof.

[0368] The invention can reduce the thickness (T) of the third direction (Z) of the optical system by arranging first to third prisms (P3) that provide a light reflection path between the object and the image sensor (10). The optical system according to the seventh embodiment can satisfy condition 2 of the first embodiment.

[0369]

[0370] Tables 38 to 41 below show the radius of curvature (R) of the conic axis of the third to eighteenth surfaces (S3-S18), the normal radius (Nradius: Normal radius), the conic constant (k), the angle (ω) between the normal of the surface at the off-axis point and the conic axis, the X, Y offsets from the conic axis, the FFS coefficients (C10-C80) and the dimensions (uk, m). The FFS coefficients (C10-C80) and the dimensions (uk, m) are shown in Fig. 50. In the following tables, Full FFS is abbreviated as F-FFS, and Half FFS is abbreviated as H-FFS.

[0371] S3(H-FFS)S4(F-FFS)S5(F-FFS)S6(F-FFS)S7(H-FFS)R20.3581-23.3492-30.653999.9063-54.2830Nradius3.58143.44218.816913.150112.6363K00000ω00000X Offset1.6327.E+00-1.4294.E-021.2477.E+002.4301.E-020Y Offset03.3641.E-019.9743.E-032.4268.E+00-1.0306.E-01C10-3.1069.E-02-1.0270.E-02-7.4437.E-01-7.4004.E -020C110-3.3171.E-011.9379.E-012.0719.E-02-1.7634.E+00C1309.6910.E-027.7775.E-02-8.6421.E-011.0609.E- 01C142.0973.E-031.1700.E-03-1.8159.E-022.5111.E-020C154.4551.E-03-2.3868.E-03-4.7841.E-015.4822.E-020 C160-9.5581.E-021.6742.E-012.0864.E-01-9.3805.E-01C1704.6450.E-02-8.7003.E-02-8.4789.E-014.9302.E-01C 185.7383.E-024.1634.E-024.0465.E-01-2.8185.E-010C190-4.7612.E-022.1028.E-011.0789.E+00-1.8394.E-01C2 00-9.4176.E-031.6649.E-02-3.0388.E-01-2.4995.E-01C21-5.5209.E-03-1.1085.E-024.6952.E-028.0743.E-030C2 22.1856.E-035.2061.E-03-1.8878.E-014.1043.E-020C230-1.5153.E-034.9017.E-021.2938.E-011.1938.E-02C2408 .7263.E-03-4.6645.E-02-3.0090.E-01-6.6307.E-01C2503.1687.E-022.0944.E-01-1.2845.E+002.3715.E+00C26-1.0020.E-02-1.3903.E-025.4449.E-01-2.4298.E-010C276.9046.E-03-1.1101.E-021.0435.E-01-8.8306.E-020C280-3.7124.E-033.5878.E-024.0 832.E-011.0201.E-01C290-1.8926.E-02-1.9474.E-021.2124.E-022.9439.E-01C30-3.2311.E-031.0998.E-032.6137.E-024.6363.E-030C311.79 42.E-03-2.5703.E-03-1.5511.E-011.2952.E-020C3203.8935.E-037.1432.E-032.7837.E-025.5352.E-02C330-2.5185.E-04-1.5598.E-02-1.831 4.E-011.2426.E-02C34-2.6332.E-02-1.0829.E-031.5814.E-01-1.5246 .E+000C350-1.1371.E-031.4838.E+00-2.9843.E+003.5987.E-03C360-7. 1001.E-031.2278.E-01-2.6490.E-01-4.5366.E-01C37-6.9712.E-04-4. 3831.E-031.4378.E-01-6.1446.E-020C383.4140.E-031.4729.E-035.240 1.E-03-2.2903.E-020C390-9.8773.E-047.9306.E-032.2148.E-015.783 5.E-02C4001.3105.E-03-2.1802.E-021.1085.E-011.6335.E-02C411.004 4.E-041.4128.E-03-2.6665.E-028.0983.E-030C426.3127.E-048.7402.E-04-1.1530.E-01-1.9554.E-020C4301.0401.E-031.4927.E-03-3.2636. E-026.0140.E-02C440-1.2353.E-04-8.5550.E-03-3.5404.E-022.9550.E -03C450-8.5837.E-03-9.7649.E-021.6778.E+006.7440.E-01C465.4371.E-03-6.2488.E-041.9638.E-016.1925.E-010C47-6.5184.E-041.1333.E-031.5189.E-01-8.6759.E-020C4803.4819.E-03-1.0171.E-01-1.0657. E+00-1.9758.E-02C490-1.1306.E-03-2.3013.E-02-4.0158.E-022.6074.E-02C509.1589.E-041.5969.E-037.0340.E-04-1.3439.E-020C517.5230 .E-04-1.1561.E-03-2.7041.E-022.5262.E-030C520-3.9200.E-04-5.49 31.E-031.7881.E-012.0860.E-02C530-1.3036.E-03-1.7801.E-027.929 9.E-024.6148.E-02C546.7519.E-05-6.5324.E-04-4.1832.E-021.1414.E-020C551.3906.E-04-4.2930.E-04-4.7949.E-02-2.9555.E-020C560-5. 3931.E-04-4.5502.E-03-1.0687.E-01-1.0875.E-04C570-1.8184.E-04- 2.4542.E-034.9827.E-021.1812.E-02C584.6713.E-033.0170.E-03-2.2 576.E-01-1.2810.E-020C5905.6127.E-031.7186.E-01-7.5446.E-026.5800.E-01C6002.0387.E-03-1.2617.E-016.5489.E-016.7081.E-03C611.3 411.E-031.9690.E-04-4.8309.E-02-4.2048.E-010C625.2521.E-057.7588.E-042.0310.E-011.1095.E-010C630-8.3819.E-04-1.1634.E-03-3.54 98.E-01-1.4598.E-02C6401.2683.E-04-6.2436.E-034.1946.E-02-1.6416.E-03C65-1.4317.E-04-1.0738.E-04-6.7794.E-028.5888.E-030C665.7713.E-052.1688.E-04-4.2204.E-021.6004.E-020C670-1.2706.E-045.7405.E-032.1745.E-01-6.9933.E-03C6805.2703.E-04-7.1896.E-03-3.4529.E-028.7453.E-03C694.4017.E-051.7971.E-05-3.4639.E-032.3 257.E-030C701.6135.E-051.0243.E-046.5418.E-032.1794.E-020C710-4.0798.E-05-9.4220.E-03-1.5895.E-01-4.4244.E-03C7201.1212.E-041.0805.E-038.2285.E-02-3.5976.E-03C730-3.4880.E-051.6868.E-0 38.4024.E-02-7.0791.E-03C7404.4227.E-069.8229.E-044.9090.E-022.9180.E-03C7507.0202.E-066.014 9.E-044.3196.E-047.2889.E-03C7606.9296.E-064.8724.E-04-3.2691.E-029.8155.E-03C7706.8924.E-06 1.7005.E-04-3.3441.E-02-4.9520.E-04C780-1.5144.E-05-3.2477.E-05-8.0319.E-03-7.9900.E-03C7905.7368.E-064.2297.E-042.2367.E-025.8333.E-03C8006.0842.E-06-2.0930.E-043.7103.E-033.5528.E-04.

[0372] S8(H-FFS)S9(H-FFS)S10(H-FFS)S11(H-FFS)S12(H-FFS)R-18.3507-54.2830-39.7 03726.3813113.3481Nradius8.945312.636312.69307.536638.5208K00000ω00000X Offset00000Y Offset-4.2695.E-01-1.0306.E-01-3.3265.E+003.7744.E-013.2894.E-01C1000000C115.8944.E-01-1.7634.E+001.4841.E+002.1603.E+00-8.8517.E-01C133.9479.E-011.0609.E-018.9129.E-015.8085.E-011.8535.E+00C1400000C1500000C161. 7441.E-01-9.3805.E-012.6803.E-01-2.3755.E-012.6465.E+00C17-4.7516.E-024.9302.E-016.1970.E-013.1427.E-016. 4914.E-02C1800000C193.5437.E-01-1.8394.E-011.2052.E+005.2786.E-01-1.4196.E+00C20-5.8581.E-03-2.4995.E-016. 1746.E-012.2830.E-011.0724.E+00C2100000C2200000C231.4279.E-021.1938.E-021.9826.E-02-5.0386.E-025.0069.E-0 2C24-2.2443.E-02-6.6307.E-014.0467.E-01-4.4766.E-021.2394.E+00C25-2.5715.E-012.3715.E+00-1.8678.E-012.8063 .E-01-5.2943.E+00C2600000C2700000C28-1.1545.E-021.0201.E-013.6912.E-01-2.1358.E-01-5.3936.E-01C29-4.6935.E -032.9439.E-014.1342.E-01-6.0344.E-03-5.3517.E-01C3000000C3100000C32-1.8390.E-025.5352.E-02-1.3882.E-01-1.3548.E-021.1223.E+00C33-2.7681.E-031.2426.E-026.7362.E-027.020 5.E-031.2504.E-01C3400000C35-4.5175.E-023.5987.E-03-6.7860.E-0 1-1.3641.E-01-1.1013.E+01C361.6175.E-02-4.5366.E-01-1.1607.E-0 1-5.6989.E-021.0163.E+01C3700000C3800000C393.2519.E-025.7835.E- 029.7920.E-027.4224.E-03-1.0232.E+00C407.3231.E-031.6335.E-02- 4.9175.E-02-2.5086.E-024.4511.E-01C4100000C4200000C43-1.0885.E -026.0140.E-02-7.3266.E-02-3.8547.E-038.4315.E-01C443.0264.E-0 32.9550.E-033.2508.E-029.4376.E-032.1559.E-02C455.6583.E-036.74 40.E-012.5614.E+004.1437.E-023.7983.E+02C4600000C4700000C481.2 616.E-01-1.9758.E-02-3.4236.E-012.0078.E-025.0178.E-03C49-3.97 53.E-032.6074.E-02-6.8184.E-02-1.7227.E-04-2.5934.E+00C5000000C5100000C52-1.1155.E-032.0860.E-021.6310.E-022.9880.E-04-1.0919 .E+00C539.9417.E-034.6148.E-02-3.3659.E-02-5.1320.E-033.8956.E-01C5400000C5500000C568.0467.E-03-1.0875.E-04-4.4778.E-028.7622 .E-034.1931.E-01C571.1830.E-031.1812.E-025.7586.E-03-2.5902.E-03-5.3507.E-02C5800000C59-1.2486.E-016.5800.E-01-8.9505.E-01-5.1103.E-024.3484.E-07C602.1142.E-026.7081.E-03-7.5172.E-01-1.7934.E-02-2.9500.E-04C6100000C6200000C63-2.3303.E-02-1.4598.E-0 2-2.6532.E-02-1.3685.E-03-6.7764.E-01C648.6212.E-03-1.6416.E-03-7.5522.E-02-5.2868.E-04-5.1331.E+00C6500000C6600000C67-3.309 5.E-03-6.9933.E-03-4.0719.E-036.0243.E-03-1.1017.E+00C68-4.9774.E-038.7453.E-03-1.2718.E-024.9394.E-033.2560.E-01C6900000C7 000000C71-3.1713.E-03-4.4244.E-03-3.4300.E-02-1.2937.E-036.496 2.E-02C72-2.6079.E-03-3.5976.E-03-8.8138.E-03-1.9515.E-04-9.53 20.E-02C73-1.6925.E-04-7.0791.E-03-1.2003.E-026.9773.E-04-1.1840.E-01C741.7364.E-032.9180.E-03-5.6035.E-03-2.8852.E-04-1.08 56.E-01C75-1.0752.E-037.2889.E-033.2346.E-04-4.5706.E-04-7.7780.E-02C76-5.7991.E-049.8155.E-031.0799.E-037.4010.E-05-2.9099. E-02C779.5167.E-04-4.9520.E-04-2.8188.E-031.8210.E-041.8986.E-02C78-1.0655.E-03-7.9900.E-03-5.0682.E-03-1.1037.E-044.9005.E -02C795.5796.E-045.8333.E-03-2.4648.E-031.9339.E-054.3590.E-02 C80-2.0520.E-043.5528.E-042.9099.E-03-2.5331.E-05-1.2864.E-02.

[0373] S13(H-FFS)S14(H-FFS)S15(F-FFS)R18.3633113.348189.8052Nradius8.960038.520816.4606K000ω000X Offset003.4317.E-02Y Offset5.9376.E-013.2894.E-011.4747.E+00C1000-1.2840.E-02C118.9593.E-01-8.8517.E-011.0426.E+00C134.7377.E-011.8535.E+001.1666.E+00C1400-1.0628.E-01C1500-2.0748.E-02C168.3597.E-012.6465.E+001.0533.E+00C171.4788.E-026.4914.E-024.0400.E+00C1800-5.4217.E-01C19-5.6999.E-02-1.4196.E+00-3.7904.E+00C201.5887.E-011.0724.E+003.7177.E-01C2100-4.0245.E-02C22003.1560.E-03C231.1753.E-015.0069.E-029.2076.E-01C242.0295.E-021.2394.E+006.2716.E-01C255.5430.E-01-5.2943.E+001.9940.E+00C26004.3107.E-01C2700-3.3524.E-02C28-2.4064.E-01-5.3936.E-01-5.6554.E-01C298.1290.E-02-5.3517.E-01-1.5250.E-02C30002.0976.E-02C31002.6475.E-02C325.9209.E-031.1223.E+004.0968.E-02C332.5381.E-021.2504.E-01-2.2246.E-01C34002.5473.E-03C35-9.1447.E-02-1.1013.E+016.6186.E+01C36-2.4599.E-011.0163.E+012.5830.E-01C3700-1.9723.E-01C38005.6596.E-02C39-2.6604.E-02-1.0232.E+00-2.5854.E-01C401.3287.E-024.4511.E-01-6.4937.E-01C41005.0095.E-02C42004.3505.E-02C431.4464.E-028.4315.E-01- 3.3128.E-01C441.2354.E-022.1559.E-02-1.7662.E-01C453.5716.E-013 .7983.E+02-7.2013.E-04C46002.7788.E-08C47003.3960.E-01C483.356 6.E-025.0178.E-03-1.2535.E+01C49-2.0704.E-02-2.5934.E+00-9.1595 .E-01C5000-5.8527.E-02C51003.3980.E-02C52-1.6910.E-02-1.0919.E +00-1.9941.E-01C53-1.1901.E-033.8956.E-01-3.3498.E-01C54003.794 6.E-02C55001.1165.E-02C569.7453.E-034.1931.E-01-3.6104.E-02C57 -6.0870.E-04-5.3507.E-02-6.9654.E-02C58007.9806.E-08C59-1.4219. E-014.3484.E-072.4045.E-06C60-1.4225.E-02-2.9500.E-04-4.3155.E+00C6100-2.3958.E-01C6200-1.6528.E-01C638.7627.E-03-6.7764.E-01 -4.9617.E+00C64-5.3457.E-03-5.1331.E+00-8.5920.E-01C6500 5.9733.E-02C6600-1.9941.E-02C675.1450.E-03-1.1017.E+00-5.9882.E-01C68 4.5105.E-043.2560.E-016.6064.E-01C6900-2.6426.E-02C7000-4.2917.E-02C716.2757.E-036.4962.E-024.7793.E-01C72-5.5118.E-03-9.5320 .E-024.9873.E-02C73-1.2487.E-03-1.1840.E-011.2148.E-01C74-5.8590.E-04-1.0856.E-011.3156.E-01C75-2.7004.E-04-7.7780.E-025.6164.E-02C76-1.0591.E-04-2.9099.E-02-1.4368.E-02C77-7.7969.E-051.8986.E-02-1.1506.E-02C78-2.5580.E-054.9005.E-022.0372.E-02C797.3769.E-064.3590.E-023.5885.E-02C806.4419.E-06-1.2864.E-02-3.8824.E-02.

[0374] S16(F-FFS)S17(F-FFS)S18(F-FFS)R755.214142.4641449.9836Nradius10.36608.56899.6578K000ω000X Offset7.2457.E-021.6295.E-01-1.9626.E-03Y Offset6.1106.E+00-8.8011.E-02-7.7642.E-01C101.5328.E-01-6.4511.E-02-1.6038.E-02C111.6909.E+00-8.2422.E-01-3.1174.E-01C13-8.2557.E-015.1382.E-016.5174.E-01C14-9.7640.E-023.2424.E-027.2824.E-03C15-4.7772.E-028.3918.E- 02-6.6893.E-02C16-2.2599.E+00-9.6349.E-01-3.0952.E-01C17-4.1982.E+004.8924.E-017.8314.E-01C181.9271.E-02-2.8 865.E-02-1.3798.E-01C19-7.5830.E-01-1.7951.E+008.6368.E-01C20-3.7004.E+006.2198.E-012.3250.E-01C218.9880.E-0 21.0280.E-02-7.0346.E-03C222.9643.E-02-5.0586.E-023.3723.E-02C23-1.6970.E+008.3955.E-01-1.4063.E+00C24-1.1325.E+004.8382.E-012.2458.E-01C25-3.0148.E+001.1359.E-011.5206.E-01C26-5.3623.E-02-3.2519.E-023.2825.E-01C277 .6128.E-024.0690.E-02-3.0114.E-02C281.0270.E-016.7748.E-01-8.9590.E-01C293.1555.E-01-4.1032.E-016.8789.E-01C 30-3.4363.E-02-3.6977.E-021.9800.E-02C31-6.2424.E-03-1.5600.E-02-2.7267.E-02C325.9733.E-018.2643.E-027.9811.E-02C334.2527.E-01-1.5547.E-013.0169.E-01C34-1.8623.E-03-1.1860.E-011.5563.E-01C35-7.9839.E-012.7969.E-014.5375.E-01C36-1.42 37.E+00-1.9452.E-013.1310.E-01C371.4499.E-025.1320.E-02-2.2979 .E-02C38-1.0894.E-02-3.8283.E-026.2008.E-02C39-8.2475.E-01-1.08 74.E-02-3.5975.E-01C401.3148.E+00-2.5940.E-01-4.5331.E-01C412.2160.E-037.1043.E-025.5583.E-03C42-1.2664.E-032.0142.E-02-4.185 2.E-02C431.4777.E-014.2090.E-011.2690.E-01C444.3552.E-01-2.6194.E-01-3.2194.E-01C452.2960.E-022.9950.E-014.4087.E+00C467.8617 .E-034.6214.E-026.8474.E-02C471.5377.E-014.7609.E-02-1.2652.E- 02C485.3710.E-013.9545.E-018.4120.E-01C49-5.0360.E-01-1.4147.E- 01-3.0506.E-01C50-2.7862.E-03-1.7540.E-02-3.7173.E-02C512.5152.E-022.8295.E-02-3.4798.E-02C52-5.2311.E-022.6629.E-011.8582.E- 01C532.0440.E-02-9.2530.E-01-1.0977.E+00C542.6831.E-04-1.9335. E-023.0495.E-02C55-2.3169.E-029.8182.E-034.5914.E-02C56-4.5253. E-02-4.0522.E-04-4.2363.E-01C572.2126.E-012.5739.E-01-2.6734.E-01C58-1.0191.E-01-2.1723.E-02-2.2886.E-03C591.8007.E+008.0601.E-013.9080.E+00C60-1.2040.E+001.7171.E+00-6.0273.E-01C611.1020.E-01-1.2366.E-02-5.6403.E-02C62-1.4742.E-03-9.9076.E-031.3793.E-03C63-7.1617.E-013.9498.E-01-1.8306.E-01C644.4600.E-01-1.1157.E-01-4.2790.E -01C651.1720.E-025.9857.E-032.0196.E-02C66-2.9297.E-03-8.6199.E-03-1.9532.E-03C677.2976.E-013.5577.E-01-4.3813.E-01C684.9827.E-02-2.6588.E-01-8.6834.E-01C69-6.8007.E-032.1031.E-03-1.0638.E-03C701.5846.E -02-2.2509.E-042.5029.E-03C71-3.1550.E-012.0040.E-01-2.0562.E-01C72-1.2714.E-02-3.5494.E-022.1906.E-01C73-5.6040.E-02-2.6080.E-02-1.0556.E-01C741.2731.E-019.6525.E-021.1856.E-01C753.9536.E-02-1.1374.E-0 1-1.8144.E-01C76-1.1944.E-01-4.0643.E-02-4.1179.E-02C772.4891.E-028.7294.E-022.5404.E-01C78-8.9002.E- 02-2.9999.E-02-5.2790.E-02C794.5866.E-03-3.3936.E-03-1.5513.E-01C80-5.2986.E-027.8169.E-037.1182.E-02.

[0375]

[0376] Table 42 below shows the angle of view, F number, entrance pupil size (EPD), thickness (T), diagonal length (D), length (H), width (W) of the image sensor, and BFL of the optical system according to the first to seventh embodiments. Here, the F number may be 1 or greater, and may range from 1 to 3. The unit of the angle of view is angle, and the units of D, H, W, and BFL are mm.

[0377] Distinction FOVFno (EPD)TDHWBFLExample 1882.31(3.58)7.7516.027.025.51.2Example 2882.31(3.58)7.8416.026.625.60.7Example 3882.31(3.58)7.4016.027.923.70.7Example 4882.31(3.58)7.7516.029.722.90.7Example 5882.31(3.58)7.7516.029.519.50.7Example 6882.31(3.58)7.7516.029.519.50.7Example 7882.31(3.58)10.416.0

[0378] Table 43 shows the values ​​of conditions 1 to 3.

[0379] Conditional Expression Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 T / D0.4840.4900.4630.4840.4740.4840.650 H / W1.0591.0391.1771.2971.513 T / BFL6.45811.20010.57111.07111.0714

[0380]

[0381] An optical system according to an embodiment(s) of the invention may have a first prism (P1) that reflects once in an up-and-down plane direction relative to the object-side coordinates, a second prism (P2) that reflects multiple times in a horizontal plane direction, and a third prism (P3) that reflects once or twice in an up-and-down plane direction. In this case, the image sensor (10) is arranged in a long length in the horizontal direction, and the thickness of the optical system can be made slim. In addition, a camera having the optical system may be provided as a camera having a large image sensor and a high resolution.

[0382] As another example, in the configuration of the first prism to the third prism according to the first to fifth embodiments, the first plane or horizontal plane direction can be changed to the second plane or vertical plane direction, and also the second plane or horizontal plane direction can be changed to the first plane or horizontal plane direction. That is, in the optical system of the first to fifth embodiments, the first direction can be changed to the second direction or the third direction.

[0383]

[0384] Referring to Figures 53 and 54, the mobile terminal is a portable device that performs various multimedia functions in addition to making phone calls. Beyond being primarily held in the user's hand, the device can be expanded to include a wearable device that can be worn on the body. Such wearable devices include smart watches, smart glasses, and head-mounted displays (HMDs).

[0385] As shown in Fig. 53, a wearable device can be configured to exchange (or link) data with other mobile terminals. The short-range communication module can detect (or recognize) a wearable device capable of communication around the mobile terminal. Furthermore, if the detected wearable device is a device authorized to communicate with the mobile terminal, the control unit can transmit at least a portion of the data processed in the mobile terminal to the wearable device through the short-range communication module. Accordingly, a user can utilize the data processed in the mobile terminal through the wearable device. For example, if a call is received on the mobile terminal, the user can make the call through the wearable device, or if a message is received on the mobile terminal, the user can check the received message through the wearable device.

[0386] Fig. 53 is a perspective view illustrating an example of a wearable device having an optical system and a camera module of the invention. The wearable device, such as Fig. 39, is composed of a frame (160) and a lens (168) having a shape similar to that of conventional eyeglasses, and an optical module (170) having an output unit, an input unit, a sensing unit, etc. is not exposed to the outside as much as possible, so that it has a shape similar to that of conventional eyeglasses or sunglasses. The frame (160) is composed of a front frame (161) positioned in front of the user's face and a side frame (162) including a bridge unit (162b) positioned on the side of the user's face and worn on the user's ear. The side frame (162) may be composed of a first side frame (162a) that is fixed to the front frame (161) so that its angle does not change, and a second side frame (162b) that is made of a material that is bendable or flexible through a hinge and worn above the user's ear. The front lens (168) is coupled to the frame (160) and positioned in front of the user's eyes when the wearable device (100) is worn by the user. The present invention configures the frame (160) and the front lens (168) to have a shape similar to that of conventional glasses, and the image projection device (151) and the wave guide (153) for providing images to the user are mounted on a separate optical module. In addition to the function of providing images, the optical module may be equipped with various components such as an audio output module, the camera module disclosed above, and a sensor unit. The optical module may be configured to be positioned in a direction close to the user when the user wears the wearable device (100) so that other people cannot recognize the optical module (170) from the front. The optical module (170) is configured to be coupled to the frame (160) and the wave guide (153) located at the rear of the front lens (168) (the direction close to the user when the wearable device (100) is referred to as the rear).

[0387]

[0388] As shown in FIG. 54, this is a drawing showing an application to a mobile terminal having an optical system and a camera module according to an embodiment. As shown in FIG. 54, the mobile terminal (1000) is a mobile phone and includes an imaging device (1010), and the imaging device (1010) includes at least one camera module (1011, 1012, 1013). For example, one of the camera modules (1011, 1012, 1013) can perform wide-angle photography, and the other can perform telephoto photography. One of the camera modules performing wide-angle photography can include a camera module having an optical system according to the first to fifth embodiments. The imaging device (1010) is shown as a rear camera of a smart phone, but the imaging device (1010) may also be a front camera of the smart phone. In addition, although the portable terminal (1000) is illustrated as a smart phone, it may be implemented in other devices than smart phones, such as mobile devices such as PDAs, netbooks, tablet computers, laptop computers, etc., wearable devices such as smart watches, smart bands, smart glasses, etc., computing devices such as desktops, servers, etc., home appliances such as televisions, smart televisions, refrigerators, etc., security devices such as door locks, CCTVs, etc., vehicles such as autonomous vehicles, smart vehicles, etc., cameras such as VR / AR cameras, 360-degree cameras, etc., drones, etc.

[0389] In addition, the mobile terminal (1000) may include a flash module (not shown) and an auto-focus device (not shown). Here, the auto-focus device (not shown) may include a surface-emitting laser element and a light receiving unit as a light-emitting layer. The flash module may include an emitter that emits light therein. The flash module may be operated by the camera operation of the electronic device or by the user's control. The auto-focus device may include an auto-focus function using a laser. The auto-focus device may be mainly used in conditions where the auto-focus function using the image of the camera module is degraded. In addition, although not shown in the drawing, at least one camera module may be further arranged on the front of the mobile terminal (1000). At least one of the camera modules within the mobile terminal may have a tele-type folded lens assembly as disclosed above.

[0390] The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to just one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified and implemented in other embodiments by a person having ordinary skill in the art to which the embodiments pertain. Therefore, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention. Although the embodiments have been described above, these are merely examples and do not limit the present invention. Those having ordinary skill in the art to which the present invention pertains will appreciate that various modifications and applications not illustrated above are possible without departing from the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments can be modified and implemented. In addition, differences related to such modifications and applications should be interpreted as being included in the scope of the present invention defined in the appended claims.

Claims

1. Includes a first prism, a second prism, and a third prism aligned toward the image sensor from the object side, The above first prism is adjacent to the object and reflects once in the horizontal plane direction, The second prism is positioned between the emission side of the first prism and the incidence side of the third prism and multiple-reflects in the vertical plane direction perpendicular to the horizontal plane direction, An optical system wherein the third prism is adjacent to the image sensor and reflects once or twice in the horizontal plane direction.

2. An optical system in the first paragraph, wherein each of the second prism and the third prism has at least one free-form surface of a non-rotationally symmetric shape among the optical surfaces arranged on the optical path.

3. In the second paragraph, the third prism is an optical system in which at least one of the optical surfaces arranged on the optical path has a full free surface (FFS) of a non-rotationally symmetric shape.

4. In the second paragraph, the first prism is an optical system in which at least one of the optical surfaces arranged on the optical path has a free-form surface of a non-rotationally symmetric shape.

5. An optical system in the third paragraph, wherein at least one of the optical surfaces of the first prism arranged on the optical path has a full free surface (FFS).

6. Includes a first prism, a second prism, and a third prism aligned toward the image sensor on the object side, The above first prism is adjacent to the object and reflects once in the vertical plane direction, The second prism is positioned between the emission side of the first prism and the incidence side of the third prism and multiple-reflects in a horizontal plane direction perpendicular to the vertical plane direction, An optical system in which the third prism is adjacent to the image sensor and reflects once or twice in the upper and lower plane directions.

7. An optical system in accordance with claim 6, wherein each of the second prism and the third prism has at least one free-form surface of a non-rotationally symmetric shape among the optical surfaces arranged on the optical path.

8. In the 7th paragraph, the optical system, wherein at least one of the optical surfaces arranged on the optical path of the third prism has a full free surface (FFS) of a non-rotationally symmetric shape.

9. In the 8th paragraph, the first prism is an optical system in which at least one of the optical surfaces arranged on the optical path has a free surface of a non-rotationally symmetric shape and at least one has a full free surface (FFS).

10. In any one of paragraphs 1 to 9, An optical system comprising at least one lens having a free-form surface of non-rotational symmetry in at least one or both of the regions between the first prism and the second prism and between the second prism and the third prism.

11. In paragraph 11, Includes an aperture positioned on the object side relative to the second prism, An optical system wherein at least one lens has a full free surface.

12. In any one of paragraphs 1 to 9, The thickness of the above optical system is T, The effective diagonal length of the above image sensor is D, Condition: T / D < 0.53 An optical system that satisfies .

Images