Imaging optical lens assembly, image capturing device and electronic device

Abstract

The invention provides an optical lens assembly for imaging, an image capturing device and an electronic device. The optical lens group for imaging comprises six lens elements which are a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element in sequence from the object side to the image side of an optical path. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. The first lens element has an object-side surface being convex in a paraxial region thereof. The fourth lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The optical effective region of at least one of the second to sixth lenses includes at least one inflection point. When specific conditions are satisfied, balance among volume distribution, imaging quality and field of view is facilitated.

Description

Technical Field

[0001] The present disclosure relates to an optical lens group for imaging and an imaging device, and particularly to a miniaturized optical lens group for imaging and an imaging device applied to an electronic device. Background Art

[0002] With the continuous improvement of semiconductor process technology, the performance of electronic photosensitive elements has been enhanced, and pixels can reach a smaller size. Therefore, an optical lens with high imaging quality has become an essential part. With the rapid development of technology, the application scope of electronic devices equipped with optical lenses is more extensive, and the requirements for optical lenses are also more diverse. Since it was relatively difficult for conventional optical lenses to balance the requirements in terms of imaging quality, sensitivity, aperture size, volume, or viewing angle, the present invention provides an optical lens group for imaging to meet the requirements. Summary of the Invention

[0003] The optical lens group for imaging, imaging device, and electronic device provided by the present disclosure help to achieve a balance among volume distribution, imaging quality, and field of view by adjusting the lens configuration of the optical lens group for imaging.

[0004] An optical lens group for imaging according to the present disclosure includes six lenses. The six lenses are, in order from the object side to the image side of an optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the object-side surface of the first lens near the optical axis is convex. Preferably, the second lens has a positive refractive power. Preferably, the image-side surface of the third lens near the optical axis is concave. Preferably, the object-side surface of the fourth lens near the optical axis is convex, and the image-side surface of the fourth lens near the optical axis is concave. Preferably, at least one of the second lens to the sixth lens includes at least one inflection point in the optical effective area. The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the focal length of the optical lens group for imaging is f, and the radius of curvature of the image-side surface of the third lens is R6, which preferably satisfies the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 6.5 < Dr1r4 / CT3; and 4.4 < f / R6.

[0005] According to the present disclosure, an optical lens group for imaging is provided, which includes six lenses. The six lenses are, in order from the object side to the image side of an optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the object-side surface of the first lens is convex near the optical axis. Preferably, the object-side surface of the second lens is convex near the optical axis. Preferably, the image-side surface of the third lens is concave near the optical axis. Preferably, the object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis. Preferably, at least one of the second lens to the sixth lens includes at least one inflection point in the optical effective area. The spacing distance between the third lens and the fourth lens on the optical axis is T34, the spacing distance between the fourth lens and the fifth lens on the optical axis is T45, the spacing distance between the fifth lens and the sixth lens on the optical axis is T56, the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the focal length of the optical lens group for imaging is f, and the radius of curvature of the image-side surface of the third lens is R6, which preferably satisfies the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 6.5 < Dr1r4 / CT3; and 4.4 < f / R6.

[0006] According to the present disclosure, an optical lens group for imaging is provided, which includes six lenses. The six lenses are, in order from the object side to the image side of an optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each lens has an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the object-side surface of the first lens is convex near the optical axis. Preferably, the object-side surface of the second lens is convex near the optical axis. Preferably, the third lens has a negative refractive power. Preferably, the object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis. Preferably, at least one of the second lens to the sixth lens includes at least one inflection point in the optical effective area. The spacing distance between the third lens and the fourth lens on the optical axis is T34, the spacing distance between the fourth lens and the fifth lens on the optical axis is T45, the spacing distance between the fifth lens and the sixth lens on the optical axis is T56, the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, which preferably satisfies the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 11 < Dr1r4 / CT3 < 45; and 0.10 < CT4 / CT3 < 1.7.

[0007] According to the present disclosure, an image pickup device is provided, which includes the aforementioned optical lens group for imaging and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the optical lens group for imaging.

[0008] According to the present disclosure, an electronic device is provided, comprising the aforementioned imaging device.

[0009] When (T34+T45) / T56 meets the above conditions, the lens configuration can be adjusted to help achieve a balance between volume distribution and imaging quality.

[0010] When Dr1r4 / CT3 meets the above conditions, the lens configuration at the object side of the imaging optical lens assembly can be adjusted to help achieve a balance between field of view and volume distribution, and also help with the setting of the reflective surface.

[0011] When f / R6 meets the above conditions, it helps to adjust the surface shape and refractive power of the third lens, which helps to adjust the field of view and correct aberrations.

[0012] When CT4 / CT3 meets the above conditions, the third lens and the fourth lens can cooperate with each other, which helps to balance the volume distribution of the object side end and the image side end of the imaging optical lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram illustrating an imaging device in a first state according to a first embodiment of the present disclosure is shown;

[0014] Figure 2A From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment in the first state;

[0015] Figure 2B From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment in the second state;

[0016] Figure 3 A schematic diagram illustrating an imaging device in a first state according to a second embodiment of the present disclosure is shown;

[0017] Figure 4A From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment in the first state;

[0018] Figure 4B From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment in the second state;

[0019] Figure 5 A schematic diagram illustrating an imaging device in a first state according to a third embodiment of the present disclosure;

[0020] Figure 6A From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment in the first state;

[0021] Figure 6BFrom left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment in the second state;

[0022] Figure 7 A schematic diagram illustrating an imaging device in a first state according to a fourth embodiment of the present disclosure is shown;

[0023] Figure 8A From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment in the first state;

[0024] Figure 8B From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment in the second state;

[0025] Figure 9 A schematic diagram illustrating an imaging device in a first state according to a fifth embodiment of the present disclosure is shown;

[0026] Figure 10A From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment in the first state;

[0027] Figure 10B From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment in the second state;

[0028] Figure 11 A schematic diagram illustrating an imaging device in a first state according to a sixth embodiment of the present disclosure is shown;

[0029] Figure 12A From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment in the first state;

[0030] Figure 12B From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment in the second state;

[0031] Figure 13 A schematic diagram illustrating a deflected optical path of an imaging device according to a first embodiment of the present disclosure is shown;

[0032] Figure 14 Schematic diagrams illustrating an imaging device configured with different types of optical path deflection elements according to a first embodiment of the present disclosure;

[0033] Figure 15A Drawing in accordance with Figure 1 A schematic diagram of the second lens in the first embodiment;

[0034] Figure 15B Drawing in accordance with Figure 1 A schematic diagram of the optically effective area and parameters of the object-side surface of the second lens in the first embodiment;

[0035] Figure 16 Drawing in accordance with Figure 1Schematic diagram of the aperture and parameters in the first embodiment;

[0036] Figure 17 A schematic diagram illustrating a deflected optical path of an imaging device according to a sixth embodiment of the present disclosure is shown;

[0037] Figure 18A A schematic diagram illustrating one side of an electronic device according to a seventh embodiment of the present disclosure;

[0038] Figure 18B Drawing in accordance with Figure 18A A schematic diagram of the other side of the electronic device;

[0039] Figure 18C Drawing in accordance with Figure 18A A schematic cross-sectional view of an electronic device;

[0040] Figure 19 A schematic diagram illustrating one side of an electronic device according to an eighth embodiment of the present disclosure;

[0041] Figure 20A A schematic diagram illustrating a configuration relationship of an optical path deflection element in an imaging optical lens assembly according to the present disclosure is shown;

[0042] Figure 20B A schematic diagram illustrating another configuration relationship of the optical path deflection element in an imaging optical lens assembly according to the present disclosure; and

[0043] Figure 20C A schematic diagram illustrating a configuration relationship of two optical path turning elements in an imaging optical lens assembly according to the present disclosure is shown.

[0044]

Explanation of symbols

[0045] 100,200: Electronic devices

[0046] 1,2,3,4,5,6,110,120,130,140,150,160,210,220,230,240,250,260,270,280,290: Imaging device

[0047] 101,201: Flash module

[0048] 102: User Interface

[0049] S1, S2, S3: aperture

[0050] E1: First lens

[0051] E2: Second lens

[0052] E3: The third lens

[0053] E4: The fourth lens

[0054] E5: Fifth lens

[0055] E6: Sixth lens

[0056] E7: Filter element

[0057] E8: Optical path turning element

[0058] IMG: Imaging surface

[0059] IS: Electronic photosensitive element

[0060] IP: Inflection Point

[0061] OA1: first optical axis

[0062] OA2: Second optical axis

[0063] OA3: Third optical axis

[0064] LF, LF1, LF2: Optical path turning element

[0065] LG: Lens group

[0066] E21: Optically effective area

[0067] Y21: The maximum distance between the optically effective area of ​​the object-side surface of the second lens and the optical axis

[0068] YS: The maximum distance between the optically effective area of ​​the aperture and the optical axis

[0069] Dr1r4: The distance between the object side surface of the first lens and the image side surface of the second lens on the optical axis

[0070] Dr1r4_1,Dr1r4_2: Segment distance

[0071] Dr5r12: The distance between the object-side surface of the third lens and the image-side surface of the sixth lens on the optical axis DETAILED DESCRIPTION

[0072] The present disclosure provides an optical lens assembly for imaging, comprising six lenses, the six lenses being, from the object side to the image side of an optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0073] The first lens element may have positive refractive power, which helps reduce the size of the object-side end of the imaging optical lens assembly. The first lens element's object-side surface near the optical axis is convex, which helps reduce the outer diameter of the object-side end of the imaging optical lens assembly. Furthermore, if the imaging optical lens assembly includes a reflective surface that can rotate relative to the electronic photosensitive element, this also helps enhance image compensation capabilities.

[0074] The second lens element may have positive refractive power, which helps to reduce the volume of the object side end of the imaging optical lens assembly. The object side surface of the second lens element may be convex near the optical axis, which helps to reduce the outer diameter of the object side end of the imaging optical lens assembly.

[0075] The third lens element can have negative refractive power to help balance the refractive power at the object-side end of the imaging optical lens assembly, thereby reducing aberrations such as spherical aberration. The image-side surface of the third lens element can be concave near the optical axis to adjust the angle of incidence of light on the fourth lens element, helping to reduce surface reflections.

[0076] The object-side surface of the fourth lens element is convex near the optical axis, which adjusts the direction of light travel and helps compress the outer diameter of the image-side end of the imaging optical lens assembly. The image-side surface of the fourth lens element is concave near the optical axis, which adjusts the surface shape of the fourth lens element and helps correct aberrations such as astigmatism.

[0077] The fifth lens element may have positive refractive power, which helps to compress the image-side volume of the optical lens assembly for imaging.

[0078] At least one of the second through sixth lenses includes at least one inflection point within its optically effective area. This increases the degree of lens surface variation, helping to reduce lens volume and improve imaging quality. Specifically, at least one of the second through sixth lenses includes at least one inflection point within its optically effective area, meaning that at least one of the object-side surface and image-side surface of at least one of the second through sixth lenses includes at least one inflection point within its optically effective area. Furthermore, at least two of the second through sixth lenses may also include at least one inflection point within their optically effective areas.

[0079] The optically effective area of ​​at least one surface of at least one of the six lenses can be non-circular. This helps reduce the size of the imaging optical lens assembly and expand its application range. Specifically, the at least one surface of at least one of the six lenses refers to at least one of the object-side surface and the image-side surface of at least one of the six lenses.

[0080] The imaging optical lens assembly may further include an aperture whose optically effective area is non-circular, thereby helping to compress the volume of the imaging optical lens assembly and expand its application range.

[0081] The imaging optical lens assembly may further include at least one reflective surface located along an optical axis between the object-side surface of the first lens and the object-side surface of the second lens. This allows for adjustable spatial configuration to reduce design constraints. Furthermore, the at least one reflective surface may be provided by a prism, which helps improve assembly yield. Furthermore, when the imaging optical lens assembly is used in an imaging device, the reflective surface may rotate (e.g., in roll, pitch, or yaw) relative to the electronic photosensitive element of the imaging device. This can be used to compensate for relative changes in the position of the image and the electronic photosensitive element, achieving effects such as optical image stabilization.

[0082] Specifically, the reflecting surface of the present disclosure can be disposed on the optical path turning element. Further, it can be provided by elements such as a prism or a mirror. The surface of the prism or the reflecting surface of the mirror can be a plane or a non-plane, such as a spherical surface, an aspherical surface, or a free-form surface, etc., but the present disclosure is not limited thereto.

[0083] The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the distance between the fifth lens and the sixth lens on the optical axis is T56, which satisfy the following conditions: 0.10 < (T34 + T45) / T56 < 1.6. Thereby, the lens configuration can be adjusted, which helps to balance the volume distribution and the imaging quality. In addition, it can satisfy the following conditions: 0.30 < (T34 + T45) / T56 < 1.4. In addition, it can satisfy the following conditions: 0.47 ≤ (T34 + T45) / T56 ≤ 1.24.

[0084] The distance between the object side surface of the first lens and the image side surface of the second lens on the optical axis is Dr1r4, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: 6.5 < Dr1r4 / CT3 or Dr1r4 / CT3 < 45. Thereby, the lens configuration at the object side end of the imaging optical lens group can be adjusted, which helps to balance the field of view and the volume distribution, and also helps to match the setting of the reflecting surface. In addition, it can satisfy the following conditions: 9.0 < Dr1r4 / CT3, 11 < Dr1r4 / CT3, Dr1r4 / CT3 < 37 or Dr1r4 / CT3 < 30. In addition, it can satisfy the following conditions: 9.0 < Dr1r4 / CT3 < 45. In addition, it can satisfy the following conditions: 11 < Dr1r4 / CT3 < 45. In addition, it can satisfy the following conditions: 13.80 ≤ Dr1r4 / CT3 ≤ 24.06.

[0085] The focal length of the imaging optical lens group is f, and the radius of curvature of the image side surface of the third lens is R6, which satisfy the following conditions: 4.4 < f / R6 or f / R6 < 8.0. Thereby, it helps to adjust the surface shape and refractive power of the third lens, and helps to adjust the field of view and correct the aberration. In addition, it can satisfy the following conditions: 4.9 < f / R6, f / R6 < 7.4 or f / R6 < 6.8. In addition, it can satisfy the following conditions: 4.9 < f / R6 < 8.0. In addition, it can satisfy the following conditions: 5.42 ≤ f / R6 ≤ 6.25.

[0086] The thickness of the third lens on the optical axis is CT3, and the thickness of the fourth lens on the optical axis is CT4, which satisfy the following condition: 0.10 < CT4 / CT3 < 1.7. Thereby, the third lens and the fourth lens can cooperate with each other, which helps to balance the volume distribution of the object side end and the image side end of the imaging optical lens group. In addition, it can satisfy the following condition: 0.40 < CT4 / CT3 < 1.4. In addition, it can satisfy the following condition: 0.68 ≤ CT4 / CT3 ≤ 1.16.

[0087] The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which satisfy the following condition: 1.95 < V2 / V3 < 3.50. Thereby, the materials of the second lens and the third lens can cooperate with each other, which helps to correct aberrations such as chromatic aberration.

[0088] The distance between the object side surface of the first lens and the image side surface of the second lens on the optical axis is Dr1r4, and the distance between the object side surface of the third lens and the image side surface of the sixth lens on the optical axis is Dr5r12, which satisfy the following condition: 1.6 < Dr1r4 / Dr5r12 < 2.3. Thereby, the lens arrangement of the imaging optical lens group can be adjusted, which helps to balance between the field of view and the volume distribution.

[0089] The radius of curvature of the object side surface of the fourth lens is R7, and the focal length of the fourth lens is f4, which satisfy the following condition: 0 < R7 / |f4| < 0.55. Thereby, the surface shape and refractive power of the fourth lens can be adjusted, which helps to correct aberrations. In addition, it can satisfy the following condition: 0 < R7 / |f4| < 0.40.

[0090] The focal length of the imaging optical lens group is f, and the radius of curvature of the object side surface of the third lens is R5, which satisfy the following condition: |f / R5| < 0.60. Thereby, it helps to adjust the surface shape and refractive power of the third lens, which helps to correct aberrations. In addition, it can satisfy the following condition: |f / R5| < 0.45.

[0091] The aperture value of the imaging optical lens group is Fno, which satisfy the following condition: 2.0 < Fno < 3.3. Thereby, a balance can be achieved between the depth of field and the illuminance.

[0092] The maximum distance between the optical effective area of the object side surface of the second lens and an optical axis is Y21, and the maximum image height of the imaging optical lens group is ImgH (which can be half of the total length of the diagonal of the effective sensing area of the electronic photosensitive element), which satisfy the following condition: 0.60 < Y21 / ImgH < 1.0. Thereby, a balance can be achieved between reducing the outer diameter of the lens and increasing the imaging surface area.

[0093] The focal length of the optical lens group for imaging is f, and the radius of curvature of the image-side surface of the fourth lens is R8, which satisfies the following condition: 1.1 < f / R8 < 4.5. Thereby, the surface shape and refractive power of the fourth lens can be adjusted, which helps to adjust the field of view within an appropriate range. In addition, it can satisfy the following condition: 1.4 < f / R8 < 4.0.

[0094] The focal length of the second lens is f2, and the radius of curvature of the object-side surface of the second lens is R3, which satisfies the following condition: 1.3 < f2 / R3 < 3.0. Thereby, the surface shape and refractive power of the second lens can be adjusted, which helps to compress the volume of the object-side end of the optical lens group for imaging.

[0095] The focal length of the optical lens group for imaging is f, and the focal length of the sixth lens is f6, which satisfies the following condition: |f / f6| < 1.1. Thereby, the refractive power of the sixth lens can be adjusted to correct aberration.

[0096] The radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6, which satisfies the following condition: |R6 / R5| < 0.16. Thereby, the surface shape of the third lens can be adjusted to compress the outer diameter of the lens and correct aberration. In addition, it can satisfy the following condition: |R6 / R5| < 0.12.

[0097] The radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the image-side surface of the fourth lens is R8, which satisfies the following condition: 0.85 < R8 / R7 < 3.0. Thereby, the traveling direction of light can be adjusted, which helps to compress the outer diameter of the image-side end of the optical lens group for imaging.

[0098] Half of the maximum viewing angle in the optical lens group for imaging is HFOV, which satisfies the following condition: 5.0 degrees < HFOV < 20.0 degrees. Thereby, the viewing angle can be adjusted to fit the application. In addition, it can satisfy the following condition: 8.0 degrees < HFOV < 16.0 degrees.

[0099] The maximum distance between the optical effective area of the object-side surface of the second lens and the optical axis is Y21, and the maximum distance between the optical effective area of the image-side surface of the sixth lens and the optical axis is Y62, which satisfies the following condition: 1.1 < Y21 / Y62 < 1.5. Thereby, the traveling direction of light can be adjusted, which helps to compress the outer diameter of the lens.

[0100] The focal length of the first lens is f1, and the focal length of the third lens is f3, which satisfies the following condition: -16 < f1 / f3 < -5.0. Thereby, the refractive power distribution of the object-side end of the optical lens group for imaging can be adjusted, which helps to correct aberration.

[0101] The focal length of the fifth lens is f5, and the thickness of the fifth lens on the optical axis is CT5, which satisfies the following conditions: 6.0 < f5 / CT5 < 90. Thereby, the surface shape and refractive power of the fifth lens can be adjusted, which helps to compress the volume of the image side end of the imaging optical lens group. In addition, it can satisfy the following conditions: 9.0 < f5 / CT5 < 75. In addition, it can satisfy the following conditions: 11 < f5 / CT5 < 60.

[0102] The focal length of the third lens is f3, and the focal length of the fifth lens is f5, which satisfies the following conditions: -15 < f5 / f3 < -1.2. Thereby, the refractive power distribution of the imaging optical lens group can be adjusted, which helps to correct aberration. In addition, it can satisfy the following conditions: -12 < f5 / f3 < -1.6. In addition, it can satisfy the following conditions: -10 < f5 / f3 < -2.0.

[0103] All the technical features in the imaging optical lens group of the above disclosure can be combined and configured to achieve the corresponding effects.

[0104] In the imaging optical lens group provided by the present disclosure, the material of the lens can be glass or plastic. If the material of the lens is glass, the freedom degree of the refractive power configuration of the imaging optical lens group can be increased, and the glass lens can be made by means of grinding or molding and other techniques. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical surface or an aspherical surface (ASP) can be provided on the lens surface. The spherical lens can reduce the manufacturing difficulty. If an aspherical surface is provided on the lens surface, more control variables can be obtained thereby to reduce aberration, reduce the number of lenses, and effectively reduce the total length of the imaging optical lens group of the present disclosure. The aspherical surface can be made by means of plastic injection molding or molding of glass lenses and other methods.

[0105] In the imaging optical lens group provided by the present disclosure, additives can be selectively added to any (or more) lens materials to produce light absorption or light interference effects, so as to change the transmittance of the lens for light in a specific wavelength band, thereby reducing stray light and color deviation. For example: the additive can have the function of filtering light in the wavelength band of 600nm - 800nm in the system to reduce excess red light or infrared light; or can filter light in the wavelength band of 350nm - 450nm to reduce blue light or ultraviolet light in the system. Therefore, the additive can avoid interference of light in a specific wavelength band on imaging. In addition, the additive can be uniformly mixed in the plastic and made into a lens by injection molding technology. In addition, the additive can also be configured on the coating on the lens surface to provide the above effects.

[0106] In the imaging optical lens group provided by the present disclosure, if the lens surface is an aspherical surface, it means that the entire or a part of the optically effective area of the lens surface is an aspherical surface.

[0107] In the imaging optical lens system provided herein, if a lens surface is convex and the position of the convex surface is undefined, it means that the lens surface may be convex at the near optical axis; if a lens surface is concave and the position of the concave surface is undefined, it means that the lens surface may be concave at the near optical axis. In the imaging optical lens system provided herein, if a lens has positive or negative refractive power, or if the lens has a focal length, it refers to the refractive power or focal length at the near optical axis.

[0108] In the imaging optical lens assembly provided by the present disclosure, the critical point is the point on the lens surface that is tangent to a tangent plane perpendicular to the optical axis, excluding the intersection with the optical axis; the inflection point is the intersection point where the curvature of the lens surface changes positively and negatively.

[0109] The imaging surface of the imaging optical lens assembly provided herein can be a flat surface or a curved surface with any curvature, depending on the corresponding electronic photosensitive element, particularly a surface with a concave surface facing the object side. Furthermore, the imaging optical lens assembly disclosed herein can optionally include one or more imaging correction elements (such as field flattening elements) between the lens closest to the imaging surface and the imaging surface in the imaging optical path to achieve image correction effects (such as image curvature). The optical properties of these imaging correction elements, such as curvature, thickness, refractive index, position, and surface shape (convex or concave, spherical or aspherical, diffractive, Fresnel, etc.), can be adjusted to suit the requirements of the imaging device. Generally speaking, a preferred imaging correction element configuration is a thin, plano-concave element with a concave surface facing the object side, positioned near the imaging surface.

[0110] In the imaging optical lens assembly provided by the present disclosure, at least one element having the function of deflecting the optical path, such as a prism or a reflector, can be selectively arranged on the optical path between the object and the imaging surface. The prism surface or the reflector surface can be a flat surface, a spherical surface, an aspherical surface, or a free-form surface, so as to provide a more flexible spatial configuration of the imaging optical lens assembly, so that the electronic device can be made thinner and lighter without being restricted by the total optical length of the imaging optical lens assembly. For further explanation, please refer to Figure 20A as well as Figure 20B ,in Figure 20A A schematic diagram illustrating a configuration relationship of an optical path turning element LF in an imaging optical lens assembly according to the present disclosure is shown. Figure 20B FIG. 1 is a schematic diagram showing another configuration relationship of the light path turning element LF in the imaging optical lens assembly according to the present disclosure. Figure 20A as well as Figure 20B As shown, the imaging optical lens assembly can be arranged along an optical path from the object (not shown) to the imaging surface IMG, and sequentially has a first optical axis OA1, an optical path turning element LF and a second optical axis OA2, wherein the optical path turning element LF can be as shown in FIG. Figure 20A The lens group LG is arranged between the object and the imaging optical lens group, or as shown in FIG. Figure 20B The figure shows the lens group LG and the imaging surface IMG of the imaging optical lens group. Figure 20C , which illustrates a schematic diagram of a configuration relationship of two optical path turning elements LF1 and LF2 in an imaging optical lens assembly according to the present disclosure. Figure 20C As shown, the imaging optical lens assembly can also have a first optical axis OA1, an optical path deflection element LF1, a second optical axis OA2, an optical path deflection element LF2, and a third optical axis OA3 along an optical path from an object (not shown) to an imaging plane IMG. The optical path deflection element LF1 is disposed between the object and the lens group LG of the imaging optical lens assembly, and the optical path deflection element LF2 is disposed between the lens group LG of the imaging optical lens assembly and the imaging plane IMG. The imaging optical lens assembly can optionally be equipped with three or more optical path deflection elements. This disclosure is not limited to the type, number, and position of the optical path deflection elements shown in the drawings.

[0111] In addition, the imaging optical lens assembly provided by the present disclosure may be provided with at least one aperture stop, such as an aperture stop, a glare stop, or a field stop, as required, to help reduce stray light and improve image quality.

[0112] In the imaging optical lens assembly provided herein, the aperture configuration can be either a front aperture or a center aperture. A front aperture means the aperture is positioned between the subject and the first lens element, while a center aperture means the aperture is positioned between the first lens element and the imaging plane. A front aperture can create a longer distance between the exit pupil and the imaging plane of the imaging optical lens assembly, creating a telecentric effect and increasing the efficiency of the image reception by the CCD or CMOS electronic sensor. A center aperture can help expand the field of view of the imaging optical lens assembly, giving it the advantages of a wide-angle lens.

[0113] The present disclosure may appropriately provide a variable aperture element, which may be a mechanical component or a light control element that can control the size and shape of the aperture electrically or with electrical signals. The mechanical component may include movable parts such as a blade assembly and a shielding plate; the light control element may include a filter element, an electrochromic material, a liquid crystal layer and other shielding materials. The variable aperture element can enhance the image adjustment capability by controlling the amount of light entering the image or the exposure time. In addition, the variable aperture element may also be the aperture of the present disclosure, which can adjust the image quality, such as the depth of field or the exposure speed, by changing the aperture value.

[0114] The present disclosure may employ one or more optical elements to restrict the pattern of light passing through an imaging optical lens assembly. These optical elements may be, but are not limited to, filters, polarizers, and other optical elements. These optical elements may be monolithic, composite, or thin-film, but are not limited to these. These optical elements may be positioned between the object and image ends of an imaging optical lens assembly, or between lenses, to control the pattern of light passing through, thereby meeting application requirements.

[0115] The imaging optical lens assembly disclosed herein may include at least one optical lens, optical element, or carrier, at least one surface of which has a low-reflection layer. The low-reflection layer can effectively reduce stray light generated by light reflection at an interface. The low-reflection layer can be disposed on an inactive area of ​​the object-side surface or image-side surface of the optical lens, or on the connecting surface between the object-side and image-side surfaces. The optical element can be a light-shielding element, an annular spacer, a lens barrel element, flat glass (cover glass), blue glass, a filter (color filter), an optical path deflection element, a prism, or a mirror. The carrier can be a lens assembly mount, a microlens disposed on a photosensitive element, the periphery of a photosensitive element substrate, or a glass sheet used to protect the photosensitive element.

[0116] In the imaging optical lens assembly disclosed herein, the object side and the image side are determined according to the direction of the optical axis, and the data on the optical axis is calculated along the optical axis.

[0117] The imaging optical lens assembly provided by the present disclosure can also be widely applied to electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile products, digital tablets, smart TVs, network monitoring equipment, motion-sensing game consoles, driving recorders, reversing imaging devices, wearable products, and drones.

[0118] The present disclosure provides an imaging device comprising the aforementioned imaging optical lens assembly and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the imaging optical lens assembly. Adjusting the lens configuration of the imaging optical lens assembly facilitates achieving a balance between volume distribution, image quality, and field of view, and also facilitates coordination of the reflective surface configuration. Preferably, the imaging device further comprises a lens barrel, a support device, or a combination thereof.

[0119] In the imaging device disclosed herein, at least one of the six lenses can be moved relative to the electronic photosensitive element along the optical axis. This allows for zooming or focusing effects, helping to expand the application range of imaging optical lens systems. Furthermore, in the imaging device, at least two, three, four, or five of the six lenses can be moved relative to the electronic photosensitive element along the optical axis. Furthermore, these lenses can be moved in response to changes in object distance to achieve focusing.

[0120] The present disclosure provides an electronic device comprising the aforementioned imaging device, thereby improving imaging quality. Preferably, the aforementioned electronic device may further comprise a control unit, a display unit, a storage unit, a random access memory, or a combination thereof.

[0121] Based on the above implementation manner, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0122] <First embodiment>

[0123] Please refer to Figure 1 、 Figure 2A as well as Figure 2B ,in Figure 1 FIG. 1 is a schematic diagram illustrating an imaging device 1 in a first state according to a first embodiment of the present disclosure. Figure 2A From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment in the first state. Figure 2B From left to right are the spherical aberration, astigmatism and distortion curves of the second state of the first embodiment. Figure 1 As can be seen, the imaging device 1 of the first embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an optical path deflection element E8, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0124] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0125] The second lens E2 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis, and both are aspherical. Figure 15A , which is drawn according to Figure 1 Schematic diagram of the second lens E2 in the first embodiment. Figure 15A It can be seen that the optically effective area of ​​the second lens element E2 includes at least one inflection point IP. Specifically, in both the first and second states, the optically effective area of ​​the object-side surface of the second lens element E2 includes an inflection point IP. In each embodiment, only the inflection points within the optically effective area of ​​certain lenses in certain states are used as examples, but this is not limiting. In each embodiment of the present disclosure, both the object-side and image-side surfaces of each lens element may include at least one inflection point within their optically effective area in each state.

[0126] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point (not otherwise indicated).

[0127] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point (not otherwise indicated).

[0128] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fifth lens element E5 includes at least one inflection point (not otherwise indicated).

[0129] The sixth lens element E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0130] The optical path turning element E8 is disposed between the first lens E1 and the second lens E2 along the optical axis. The optical path turning element E8 is a prism made of glass and has a reflective surface. The optical path turning element E8 is rotatable relative to the electronic photosensitive element IS.

[0131] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0132] At least one reflective surface may be included along the optical axis between the object side surface of the first lens E1 and the object side surface of the second lens E2. In the first embodiment, the reflective surface is provided on the optical path turning element E8. In the present disclosure, the types and configurations of the reflective surface and the optical path turning element E8 are not limited to the disclosed state. For example, the reflective surface may be provided by a prism or a reflector, and the prism surface or the reflector surface may be a plane or a non-plane, such as a spherical surface, an aspherical surface or a free-form surface, but the present disclosure is not limited thereto. Please refer to Figure 13 , which is a schematic diagram showing the optical path of the imaging device 1 according to the first embodiment of the present disclosure. Figure 13 It can be seen that the optical path is turned by the reflective surface of the optical path turning element E8. Figure 1 In the present disclosure, the light path turning method can be similar to Figure 13 The disclosed form is not described here in detail. Figure 14 , which illustrates a schematic diagram of an imaging device 1 configured with different types of optical path deflection elements E8 according to the first embodiment of the present disclosure, Figure 14It can be seen that the light path turning element E8 can also be configured as a reflecting mirror that can turn the light path.

[0133] The reflective surface rotates relative to the electronic photosensitive element IS (e.g., in roll, pitch, or yaw) to compensate for variations in the relative positions of the image and the electronic photosensitive element IS. The rotational mechanism can be adjusted based on actual needs. For example, the first lens E1 and the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS in conjunction with each other, or only the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS. This disclosure is not limited to this.

[0134] The optically effective area of ​​each lens surface can be non-circular in all states. Please refer to Figure 15B , which is drawn according to Figure 1 Schematic diagram of the optically effective area E21 and parameters of the object-side surface of the second lens E2 in the first embodiment. Figure 15B It can be seen that in the first embodiment, in the first state and the second state, the optically effective area E21 of the object-side surface of the second lens E2 is non-circular. Figure 15B The shape disclosed in the figure is not limited thereto and may be other types of non-circular shapes according to actual needs.

[0135] The optically effective area of ​​each aperture can be non-circular in all states. Please refer to Figure 16 , which is drawn according to Figure 1 Schematic diagram of the aperture S1 and its parameters in the first embodiment. Figure 16 It can be seen that in the first embodiment, in both the first state and the second state, the optically effective area of ​​the aperture S1 is non-circular, and the maximum distance between the optically effective area of ​​the aperture S1 and the optical axis is YS. Figure 16 The shape disclosed in the figure is not limited thereto and may be other types of non-circular shapes according to actual needs.

[0136] The curve equations of the aspheric surfaces of the above lenses are expressed as follows:

[0137]

[0138] ;in:

[0139] X: The displacement parallel to the optical axis from the intersection of the aspheric surface and the optical axis to the point on the aspheric surface that is Y away from the optical axis;

[0140] Y: The vertical distance between the point on the aspheric curve and the optical axis;

[0141] R: radius of curvature;

[0142] k: cone coefficient; and

[0143] Ai: i-th order aspheric coefficient.

[0144] Please refer to Table 1A and Table 1B below.

[0145]

[0146]

[0147]

[0148] Table 1A is Figure 1 Detailed structural data for the first embodiment is provided, with the units of curvature radius, thickness, and focal length in mm. Surfaces 0-20 represent the surfaces from the object side to the image side, respectively, and the refractive index is measured at a reference wavelength. Table 1B presents the aspheric surface data for the first embodiment, where k represents the conic coefficient in the aspheric curve equation, and A4-A20 represent the 4th-20th order aspheric coefficients for each surface. Furthermore, the tables below correspond to the schematic diagrams and aberration curves for each embodiment. The definitions of the data in the tables are the same as those in Tables 1A and 1B of the first embodiment and are not further elaborated here.

[0149] Please refer to Table 1C below and Figure 1 、 Figure 2A as well as Figure 2B , wherein Table 1C discloses the imaging optical lens assembly of the first embodiment. Figure 1 and Figure 2A The first state disclosed and the imaging optical lens assembly of the first embodiment are Figure 2B In the disclosed second state, the values ​​of parameters f, Fno, HFOV, D0, D4, and D17, where the focal length of the imaging optical lens assembly is f, the aperture value (f-number) of the imaging optical lens assembly is Fno, and half of the maximum viewing angle of the imaging optical lens assembly is HFOV, and the definitions of D0, D4, and D17 can be referred to in Table 1A, where the thickness of surface 0 on the optical axis is D0, the thickness of surface 4 on the optical axis is D4, and the thickness of surface 17 on the optical axis is D17. In this disclosure, the states disclosed in various embodiments are merely illustrative and not limiting. For example, each embodiment may include other states, or may include only one state, such as the first state or the second state. The data for each state in various embodiments in this disclosure are merely illustrative and not limiting. For example, in other states, D0, D4, or D17 may be between the first and second states, or may be greater than or less than the first or second states.

[0150]

[0151] In the first embodiment, the second through sixth lenses E2 through E6 are moved relative to the electronic light-sensing element IS along the optical axis to achieve focusing in response to changes in object distance. This is merely an example and is not intended to be limiting. For example, depending on actual needs, any one, two, three, or all of the six lenses may be moved relative to the electronic light-sensing element IS along the optical axis.

[0152] In the imaging optical lens assembly of the first embodiment, the Abbe number of the second lens element E2 is V2, and the Abbe number of the third lens element E3 is V3. In the first state, the Abbe number V2 / V3=2.16 is satisfied, and in the second state, the Abbe number V2 / V3=2.16 is satisfied.

[0153] In the imaging optical lens assembly of the first embodiment, the distance on the optical axis between the third lens E3 and the fourth lens E4 is T34, the distance on the optical axis between the fourth lens E4 and the fifth lens E5 is T45, and the distance on the optical axis between the fifth lens E5 and the sixth lens E6 is T56. In the first state, the following condition is satisfied: (T34 + T45) / T56 = 0.54; in the second state, the following condition is satisfied: (T34 + T45) / T56 = 0.54. In the first embodiment, the distance on the optical axis between two adjacent lenses refers to the distance on the optical axis between two adjacent mirror surfaces of the two adjacent lenses.

[0154] In the imaging optical lens assembly of the first embodiment, the thickness of the third lens element E3 on the optical axis is CT3, and the thickness of the fourth lens element E4 on the optical axis is CT4. In the first state, the thickness of the third lens element E3 on the optical axis is CT3, and in the second state, the thickness of the fourth lens element E4 on the optical axis is CT4. The following condition is satisfied: CT4 / CT3=1.16.

[0155] In the imaging optical lens assembly of the first embodiment, the distance on the optical axis between the object-side surface of the first lens E1 and the image-side surface of the second lens E2 is Dr1r4, and the thickness on the optical axis of the third lens E3 is CT3. In the first state, the following conditions are satisfied: Dr1r4 / CT3=17.18; and in the second state, the following conditions are satisfied: Dr1r4 / CT3=16.50. In addition, referring to Figure 13 , corresponding to the optical path turning, Dr1r4 can be the sum of the segment distance Dr1r4_1 and the segment distance Dr1r4_2.

[0156] In the imaging optical lens assembly of the first embodiment, the distance on the optical axis between the object-side surface of the first lens E1 and the image-side surface of the second lens E2 is Dr1-4, and the distance on the optical axis between the object-side surface of the third lens E3 and the image-side surface of the sixth lens E6 is Dr5-12 (indicated on Figure 13), which satisfies the following conditions in the first state: Dr1r4 / Dr5r12=1.84; and which satisfies the following conditions in the second state: Dr1r4 / Dr5r12=1.77.

[0157] In the imaging optical lens assembly of the first embodiment, the object-side surface of the third lens element E3 has a curvature radius of R5, and the image-side surface of the third lens element E3 has a curvature radius of R6. In the first state, the curvature radius of R5 satisfies the following condition: |R6 / R5|=0.06; and in the second state, the curvature radius of R6 / R5|=0.06.

[0158] In the imaging optical lens assembly of the first embodiment, the radius of curvature of the object-side surface of the fourth lens element E4 is R7, and the focal length of the fourth lens element E4 is f4. In the first state, the fourth lens element E4 satisfies the following condition: R7 / |f4|=0.12; and in the second state, the fourth lens element E4 satisfies the following condition: R7 / |f4|=0.12.

[0159] In the imaging optical lens assembly of the first embodiment, the object-side surface of the fourth lens element E4 has a curvature radius of R7, and the image-side surface of the fourth lens element E4 has a curvature radius of R8. In the first state, the curvature radius of R7 satisfies the following condition: R8 / R7=1.16; and in the second state, the curvature radius of R8 / R7=1.16.

[0160] In the imaging optical lens assembly of the first embodiment, the focal length of the imaging optical lens assembly is f, the focal length of the sixth lens element E6 is f6, and in the first state, the following condition is satisfied: |f / f6|=0.07; and in the second state, the following condition is satisfied: |f / f6|=0.07.

[0161] In the imaging optical lens assembly of the first embodiment, the focal length of the imaging optical lens assembly is f, the radius of curvature of the object-side surface of the third lens element E3 is R5, and in the first state, the following condition is satisfied: |f / R5|=0.33; and in the second state, the following condition is satisfied: |f / R5|=0.32.

[0162] In the imaging optical lens assembly of the first embodiment, the focal length of the imaging optical lens assembly is f, the radius of curvature of the image-side surface of the third lens element E3 is R6, and in the first state, the following condition is satisfied: f / R6=5.46; and in the second state, the following condition is satisfied: f / R6=5.44.

[0163] In the imaging optical lens assembly of the first embodiment, the focal length of the imaging optical lens assembly is f, the radius of curvature of the image-side surface of the fourth lens element E4 is R8, and in the first state, the following condition is satisfied: f / R8=3.15; and in the second state, the following condition is satisfied: f / R8=3.14.

[0164] In the imaging optical lens assembly of the first embodiment, the focal length of the first lens element E1 is f1, and the focal length of the third lens element E3 is f3. In the first state, the following condition is satisfied: f1 / f3=-13.04; and in the second state, the following condition is satisfied: f1 / f3=-13.04.

[0165] In the imaging optical lens assembly of the first embodiment, the focal length of the second lens element E2 is f2, and the radius of curvature of the object-side surface of the second lens element E2 is R3. In the first state, the second lens element E2 satisfies the following condition: f2 / R3=1.54; and in the second state, the second lens element E2 satisfies the following condition: f2 / R3=1.54.

[0166] In the imaging optical lens assembly of the first embodiment, the focal length of the fifth lens element E5 is f5, and the thickness of the fifth lens element E5 on the optical axis is CT5. In the first state, the fifth lens element E5 satisfies the following condition: f5 / CT5=51.75; and in the second state, the fifth lens element E5 satisfies the following condition: f5 / CT5=51.75.

[0167] In the imaging optical lens assembly of the first embodiment, the focal length of the third lens element E3 is f3, and the focal length of the fifth lens element E5 is f5. In the first state, the following condition is satisfied: f5 / f3=-8.08; and in the second state, the following condition is satisfied: f5 / f3=-8.08.

[0168] Depend on Figure 15B It can be seen that in the imaging optical lens assembly of the first embodiment, the maximum distance between the optically effective area E21 of the object-side surface of the second lens element E2 and the optical axis is Y21, and the maximum image height of the imaging optical lens assembly is ImgH. In the first state, the following condition is satisfied: Y21 / ImgH=0.78; and in the second state, the following condition is satisfied: Y21 / ImgH=0.78.

[0169] In the imaging optical lens assembly of the first embodiment, the maximum distance between the optically effective area E21 of the object-side surface of the second lens element E2 and the optical axis is Y21, and the maximum distance between the optically effective area of ​​the image-side surface of the sixth lens element E6 and the optical axis is Y62. In the first state, the maximum distance Y21 / Y62 satisfies the following condition: Y21 / Y62=1.29; and in the second state, the maximum distance Y21 / Y62=1.29.

[0170] <Second embodiment>

[0171] Please refer to Figure 3 、 Figure 4A as well as Figure 4B ,in Figure 3 FIG2 is a schematic diagram showing an imaging device 2 in a first state according to a second embodiment of the present disclosure. Figure 4A From left to right are the spherical aberration, astigmatism and distortion curves of the first state of the second embodiment. Figure 4BFrom left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment in the second state. Figure 3 As can be seen, the imaging device 2 of the second embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an optical path deflection element E8, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0172] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0173] The second lens element E2 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the second lens element E2 includes at least one inflection point.

[0174] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is also concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point.

[0175] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point.

[0176] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fifth lens element E5 includes at least one inflection point.

[0177] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the sixth lens element E6 includes at least one inflection point.

[0178] The optical path turning element E8 is disposed between the first lens E1 and the second lens E2 along the optical axis. The optical path turning element E8 is a prism made of glass and has a reflective surface. The optical path turning element E8 can rotate relative to the electronic photosensitive element IS.

[0179] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0180] At least one reflective surface may be included between the object-side surface of the first lens E1 and the object-side surface of the second lens E2 along the optical axis, which may be similar to that disclosed in the first embodiment and will not be described in detail herein. In the second embodiment, the reflective surface is disposed on the optical path turning element E8.

[0181] The reflective surface rotates relative to the electronic photosensitive element IS (e.g., in roll, pitch, or yaw) to compensate for variations in the relative positions of the image and the electronic photosensitive element IS. The rotational mechanism can be adjusted based on actual needs. For example, the first lens E1 and the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS in conjunction with each other, or only the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS. This disclosure is not limited to this.

[0182] The optically effective area of ​​each lens surface can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the second embodiment, in the first and second states, the optically effective area of ​​the object-side surface of the second lens E2 is non-circular.

[0183] The optically effective area of ​​each aperture can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the second embodiment, the optically effective area of ​​the aperture S1 is non-circular in both the first and second states.

[0184] Please refer to Table 2A and Table 2B below.

[0185]

[0186]

[0187]

[0188]

[0189] Referring to Table 2A above, the values ​​of the parameters f, Fno, HFOV, D0, D4, and D17 corresponding to the imaging optical lens assembly of the second embodiment in the first state and the second state are disclosed in Table 2C below.

[0190]

[0191] In the second embodiment, the second lens E2 to the sixth lens E6 are moved relative to the electronic photosensitive element IS along the optical axis to focus in response to changes in object distance. This is merely an example and is not intended to be limiting. The method may be similar to that disclosed in the first embodiment and will not be further described herein.

[0192] In the second embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0193] The following data in Table 2D can be derived by combining Table 2A, Table 2B, and Table 2C:

[0194]

[0195] <Third embodiment>

[0196] Please refer to Figure 5 、 Figure 6A as well as Figure 6B ,in Figure 5 FIG. 1 is a schematic diagram illustrating an imaging device 3 in a first state according to a third embodiment of the present disclosure. Figure 6A From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment in the first state. Figure 6B From left to right are the spherical aberration, astigmatism and distortion curves of the second state of the third embodiment. Figure 5 As can be seen, the imaging device 3 of the third embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an optical path deflection element E8, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0197] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0198] The second lens element E2 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the second lens element E2 includes at least one inflection point.

[0199] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point.

[0200] The fourth lens element E4 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point.

[0201] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fifth lens element E5 includes at least one inflection point.

[0202] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the sixth lens element E6 includes at least one inflection point.

[0203] The optical path turning element E8 is disposed between the first lens E1 and the second lens E2 along the optical axis. The optical path turning element E8 is a prism made of glass and has a reflective surface. The optical path turning element E8 can rotate relative to the electronic photosensitive element IS.

[0204] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0205] At least one reflective surface may be included along the optical axis between the object-side surface of the first lens E1 and the object-side surface of the second lens E2, which may be similar to that disclosed in the first embodiment and will not be described in detail herein. In the third embodiment, the reflective surface is disposed on the optical path turning element E8.

[0206] The reflective surface rotates relative to the electronic photosensitive element IS (e.g., in roll, pitch, or yaw) to compensate for variations in the relative positions of the image and the electronic photosensitive element IS. The rotational mechanism can be adjusted based on actual needs. For example, the first lens E1 and the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS in conjunction with each other, or only the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS. This disclosure is not limited to this.

[0207] The optically effective area of ​​each lens surface can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the third embodiment, in the first and second states, the optically effective area of ​​the object-side surface of the second lens E2 is non-circular.

[0208] The optically effective area of ​​each aperture can be non-circular in each state, which is similar to that disclosed in the first embodiment and will not be described in detail. In the third embodiment, in both the first and second states, the optically effective area of ​​the aperture S1 is non-circular.

[0209] Please refer to Table 3A and Table 3B below.

[0210]

[0211]

[0212]

[0213] Referring to Table 3A above, the values ​​of the parameters f, Fno, HFOV, D0, D4, and D17 corresponding to the imaging optical lens assembly of the third embodiment in the first state and the second state are disclosed in Table 3C below.

[0214]

[0215] In the third embodiment, the second lens E2 to the sixth lens E6 are moved relative to the electronic photosensitive element IS along the optical axis to focus in response to changes in object distance. This is merely an example and is not intended to be limiting. The method may be similar to that disclosed in the first embodiment and will not be further described herein.

[0216] In the third embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0217] The following data in Table 3D can be derived by combining Table 3A, Table 3B, and Table 3C:

[0218]

[0219] <Fourth embodiment>

[0220] Please refer to Figure 7 、 Figure 8A as well as Figure 8B ,in Figure 7 FIG. 1 is a schematic diagram illustrating an imaging device 4 in a first state according to a fourth embodiment of the present disclosure. Figure 8A From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment in the first state. Figure 8B From left to right are the spherical aberration, astigmatism and distortion curves of the second state of the fourth embodiment. Figure 7 As can be seen, the imaging device 4 of the fourth embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an optical path deflection element E8, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0221] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0222] The second lens element E2 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the second lens element E2 includes at least one inflection point.

[0223] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point.

[0224] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point.

[0225] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0226] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0227] The optical path turning element E8 is disposed between the first lens E1 and the second lens E2 along the optical axis. The optical path turning element E8 is a prism made of glass and has a reflective surface. The optical path turning element E8 can rotate relative to the electronic photosensitive element IS.

[0228] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0229] At least one reflective surface may be included along the optical axis between the object-side surface of the first lens E1 and the object-side surface of the second lens E2, which may be similar to that disclosed in the first embodiment and will not be described in detail herein. In the fourth embodiment, the reflective surface is disposed on the optical path turning element E8.

[0230] The reflective surface rotates relative to the electronic photosensitive element IS (e.g., in roll, pitch, or yaw) to compensate for variations in the relative positions of the image and the electronic photosensitive element IS. The rotational mechanism can be adjusted based on actual needs. For example, the first lens E1 and the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS in conjunction with each other, or only the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS. This disclosure is not limited to this.

[0231] The optically effective area of ​​each lens surface can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the fourth embodiment, in the first and second states, the optically effective area of ​​the object-side surface of the second lens E2 is non-circular.

[0232] The optically effective area of ​​each aperture can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the fourth embodiment, the optically effective area of ​​the aperture S1 is non-circular in both the first and second states.

[0233] Please refer to Table 4A and Table 4B below.

[0234]

[0235]

[0236]

[0237]

[0238] Referring to Table 4A above, the values ​​of the corresponding parameters f, Fno, HFOV, D0, D4, and D17 of the imaging optical lens assembly of the fourth embodiment in the first state and the second state are disclosed in Table 4C below.

[0239]

[0240] In the fourth embodiment, the second lens E2 to the sixth lens E6 are moved relative to the electronic photosensitive element IS along the optical axis to focus in response to changes in object distance. This is merely an example and is not intended to be limiting. The method may be similar to that disclosed in the first embodiment and will not be described in detail herein.

[0241] In the fourth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0242] The following data in Table 4D can be derived by combining Table 4A, Table 4B, and Table 4C:

[0243]

[0244]

[0245] <Fifth embodiment>

[0246] Please refer to Figure 9 、 Figure 10A as well as Figure 10B ,in Figure 9FIG. 1 is a schematic diagram illustrating an imaging device 5 in a first state according to a fifth embodiment of the present disclosure. Figure 10A From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment in the first state. Figure 10B From left to right are the spherical aberration, astigmatism and distortion curves of the second state of the fifth embodiment. Figure 9 As can be seen, the imaging device 5 of the fifth embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an optical path deflection element E8, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0247] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0248] The second lens element E2 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the second lens element E2 includes at least one inflection point.

[0249] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point.

[0250] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point.

[0251] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is also convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fifth lens element E5 includes at least one inflection point.

[0252] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is also concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the sixth lens element E6 includes at least one inflection point.

[0253] The optical path turning element E8 is disposed between the first lens E1 and the second lens E2 along the optical axis. The optical path turning element E8 is a prism made of glass and has a reflective surface. The optical path turning element E8 can rotate relative to the electronic photosensitive element IS.

[0254] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0255] At least one reflective surface may be included along the optical axis between the object-side surface of the first lens E1 and the object-side surface of the second lens E2, which may be similar to that disclosed in the first embodiment and will not be described in detail. In the fifth embodiment, the reflective surface is disposed on the optical path turning element E8.

[0256] The reflective surface rotates relative to the electronic photosensitive element IS (e.g., in roll, pitch, or yaw) to compensate for variations in the relative positions of the image and the electronic photosensitive element IS. The rotational mechanism can be adjusted based on actual needs. For example, the first lens E1 and the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS in conjunction with each other, or only the optical path deflection element E8 may rotate relative to the electronic photosensitive element IS. This disclosure is not limited to this.

[0257] The optically effective area of ​​each lens surface can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the fifth embodiment, in the first state and the second state, the optically effective area of ​​the object-side surface of the second lens E2 is non-circular.

[0258] The optically effective area of ​​each aperture can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the fifth embodiment, the optically effective area of ​​the aperture S1 is non-circular in both the first and second states.

[0259] Please refer to Table 5A and Table 5B below.

[0260]

[0261]

[0262]

[0263]

[0264] Referring to Table 5A above, the values ​​of the corresponding parameters f, Fno, HFOV, D0, D4, and D17 of the imaging optical lens assembly of the fifth embodiment in the first state and the second state are disclosed in Table 5C below.

[0265]

[0266]

[0267] In the fifth embodiment, the second lens E2 to the sixth lens E6 are moved relative to the electronic photosensitive element IS along the optical axis to focus in response to changes in object distance. This is merely an example and is not intended to be limiting. The method may be similar to that disclosed in the first embodiment and will not be described in detail herein.

[0268] In the fifth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0269] The following data in Table 5D can be derived by combining Table 5A, Table 5B, and Table 5C:

[0270]

[0271] <Sixth embodiment>

[0272] Please refer to Figure 11 、 Figure 12A as well as Figure 12B ,in Figure 11 FIG. 1 is a schematic diagram illustrating an imaging device 6 in a first state according to a sixth embodiment of the present disclosure. Figure 12A From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment in the first state. Figure 12B From left to right are the spherical aberration, astigmatism and distortion curves of the second state of the sixth embodiment. Figure 11 As can be seen, the imaging device 6 of the sixth embodiment includes an imaging optical lens assembly (not separately labeled) and an electronic photosensitive element IS. The imaging optical lens assembly includes, from the object side to the image side of the optical path, a first lens E1, an aperture S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, an aperture S2, a sixth lens E6, an aperture S3, a filter element E7, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG of the imaging optical lens assembly. The imaging optical lens assembly includes six lenses (E1, E2, E3, E4, E5, E6), with no other lenses interposed between the six lenses.

[0273] The first lens E1 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is flat near the optical axis. Furthermore, the first lens E1 is a non-planar prism, acting as an optical deflection element. It has a reflective surface located along the optical axis between the object-side and image-side surfaces of the first lens. The first lens E1 is rotatable relative to the electronic sensor IS.

[0274] The second lens element E2 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the second lens element E2 includes at least one inflection point.

[0275] The third lens element E3 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the third lens element E3 includes at least one inflection point.

[0276] The fourth lens element E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fourth lens element E4 includes at least one inflection point.

[0277] The fifth lens element E5 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the fifth lens element E5 includes at least one inflection point.

[0278] The sixth lens element E6 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Furthermore, the optically effective area of ​​the sixth lens element E6 includes at least one inflection point.

[0279] The filter element E7 is made of glass and is disposed between the sixth lens element E6 and the imaging plane IMG without affecting the focal length of the imaging optical lens assembly.

[0280] At least one reflective surface may be included between the object-side surface of the first lens E1 and the object-side surface of the second lens E2 along the optical axis. The reflective surface may be similar to that disclosed in the first embodiment and will not be described in detail here. In the sixth embodiment, the reflective surface is provided on the first lens E1. Figure 17 , which illustrates a schematic diagram of the optical path of the imaging device 6 according to the sixth embodiment of the present disclosure. Figure 17 It can be seen that the light path is turned by the reflection surface of the first lens E1. Figure 11 This is the state where the light path has not turned.

[0281] The reflective surface rotates relative to the electronic photosensitive element IS (eg, roll, pitch, or yaw) to compensate for the relative position change between the image and the electronic photosensitive element IS. The rotation method can be adjusted according to actual needs, and the present disclosure is not limited thereto.

[0282] The optically effective area of ​​each lens surface can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the sixth embodiment, in the first and second states, the optically effective area of ​​the object-side surface of the second lens E2 is non-circular.

[0283] The optically effective area of ​​each aperture can be non-circular in each state, which is similar to that disclosed in the first embodiment and is not described in detail here. In the sixth embodiment, in both the first and second states, the optically effective area of ​​the aperture S1 is non-circular.

[0284] Please refer to Table 6A and Table 6B below.

[0285]

[0286]

[0287]

[0288]

[0289] Referring to Table 6A above, the corresponding values ​​of the parameters f, Fno, HFOV, D0, D2, and D15 of the imaging optical lens assembly of the sixth embodiment in the first and second states are disclosed in Table 6C below, where the thickness of surface 2 along the optical axis is D2, and the thickness of surface 15 along the optical axis is D15.

[0290]

[0291] In the sixth embodiment, the second lens E2 to the sixth lens E6 are moved relative to the electronic photosensitive element IS along the optical axis to focus in response to changes in object distance. This is merely an example and is not intended to be limiting. The method may be similar to that disclosed in the first embodiment and will not be further described herein.

[0292] In the sixth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as in the first embodiment and are not repeated here.

[0293] The following data in Table 6D can be derived by combining Table 6A, Table 6B, and Table 6C:

[0294]

[0295]

[0296] <Seventh embodiment>

[0297] Please refer to Figure 18A 、 Figure 18B and Figure 18C ,in Figure 18A A schematic diagram illustrating one side of an electronic device 100 according to a seventh embodiment of the present disclosure is shown. Figure 18B Drawing in accordance with Figure 18A A schematic diagram of the other side of the electronic device 100, Figure 18C Drawing in accordance with Figure 18A Schematic cross-sectional view of the electronic device 100. Figure 18A 、 Figure 18B and Figure 18C It can be seen that the electronic device 100 of the seventh embodiment is a smart phone, which includes imaging devices 110, 120, 130, 140, 150, 160, a flash module 101, a focus assist module, an image signal processor (ISP), a user interface 102, and an image software processor, wherein the imaging devices 140, 150, 160 are front lenses.

[0298] The imaging device 110 includes an imaging lens, a drive assembly, an electronic photosensitive element IS, and an image stabilization module. The imaging lens comprises the imaging optical lens assembly disclosed herein, a lens barrel supporting the imaging optical lens assembly, and a supporting device. Specifically, the imaging optical lens assembly includes an optical path deflection element E8 having a reflective surface, which may be a prism, but is not limited thereto. The imaging device 110 uses the imaging lens to focus light and capture an image of the subject, and cooperates with the drive assembly to focus the image. The image is then formed on the electronic photosensitive element and output as image data.

[0299] The drive assembly can have functions such as focus adjustment and can be driven by a screw, a voice coil motor (VCM) such as a spring-type or ball-type, a micro-electromechanical system (MEMS), a piezoelectric system, or a shape memory alloy. The drive assembly allows the imaging optical lens assembly to achieve an optimal imaging position, providing clear images of the subject at various object distances. Furthermore, the drive assembly can move at least one lens in the imaging optical lens assembly along the optical axis relative to the electronic photosensitive element IS, achieving effects such as zooming or focusing. The drive assembly can also rotate the reflective surface relative to the electronic photosensitive element (e.g., by roll, pitch, or yaw), compensating for changes in the relative position of the image and the electronic photosensitive element, achieving effects such as optical image stabilization.

[0300] The imaging device 110 can be equipped with an electronic photosensitive element (IS) with high sensitivity and low noise (such as a CMOS or CCD) positioned on the imaging surface of the imaging optical lens assembly, thereby effectively displaying the excellent imaging quality of the imaging optical lens assembly. Furthermore, the imaging device 110 can include an image stabilization module, which can be a motion sensor such as an accelerometer, gyroscope, or Hall Effect Sensor. By adjusting the different axial directions of the imaging optical lens assembly to compensate for image blur caused by shaking at the moment of shooting, the image quality of dynamic and low-light scenes can be further improved, and advanced image compensation functions such as optical image stabilization (OIS) and electronic image stabilization (EIS) can be provided.

[0301] When a user captures a subject through user interface 102, electronic device 100 utilizes image capture device 110, 120, 130, 140, 150, or 160 to focus light and capture the image. Flash module 101 is activated for fill light, and the focus assist module provides object distance information for rapid focusing. Furthermore, the image signal processor and image software processor perform image optimization processing to further enhance the image quality produced by the lens. The focus assist module may utilize an infrared or laser focus assist system to achieve rapid focusing. User interface 102 may utilize a touch screen or a physical capture button, in conjunction with the diverse functions of image processing software for image capture and processing.

[0302] The imaging devices 120, 130, 140, 150, and 160 may all include the imaging optical lens assembly disclosed herein, and may all have the same or similar structures as the imaging device 110, and will not be described in detail here. Specifically, the imaging devices 110, 120, and 130 may be a telephoto imaging device (including an optical path deflection element), a wide-angle imaging device, and an ultra-wide-angle imaging device, respectively, while the imaging devices 140, 150, and 160 may be a wide-angle imaging device, an ultra-wide-angle imaging device, and a TOF module (Time-Of-Flight) module, respectively, but are not limited to these configurations. In addition, Figure 18C Each element of the imaging device 110 in the embodiment may be the same as or similar to the element with the corresponding element number in any one of the first embodiment to the sixth embodiment, and will not be described in detail here.

[0303] <Eighth Embodiment>

[0304] Please refer to Figure 19, which is a schematic diagram illustrating a side of an electronic device 200 according to an eighth embodiment of the present disclosure. The electronic device 200 of the eighth embodiment is a smartphone, and includes imaging devices 210 , 220 , 230 , 240 , 250 , 260 , 270 , 280 , 290 and a flash module 201 .

[0305] The electronic device 200 of the eighth embodiment may include the same or similar components as those of the seventh embodiment, and the connection between the imaging devices 210, 220, 230, 240, 250, 260, 270, 280, 290 and the flash module 201 and other components may also be the same or similar as those disclosed in the seventh embodiment, and are not further described here. The imaging devices 210, 220, 230, 240, 250, 260, 270, 280, 290 of the eighth embodiment may all include the imaging optical lens assembly of the present disclosure and may have the same or similar structures as the imaging device 110 of the seventh embodiment, and are not further described here.

[0306] In detail, the imaging devices 210 and 220 can be ultra-wide-angle imaging devices, respectively; the imaging devices 230 and 240 can be wide-angle imaging devices, respectively; the imaging devices 250 and 260 can be telephoto imaging devices, respectively; the imaging devices 270 and 280 can be telephoto imaging devices (which can include optical path turning elements), respectively; the imaging device 290 can be a TOF module, or can be another type of imaging device, and is not limited to this configuration.

[0307] Although the present disclosure has been disclosed above in the form of implementation methods, it is not intended to limit the present disclosure. Anyone skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the appended claims.

Claims

1. An optical lens assembly for imaging, characterized in that: It includes six lenses, and the six lenses are, in order from the object side to the image side of an optical path: A first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens; each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; Among them, the object-side surface of the first lens is convex near the optical axis; The second lens has a positive refractive power; The image-side surface of the third lens is concave near the optical axis; The object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis; At least one of the second lens to the sixth lens includes at least one inflection point in its optical effective area; Among them, the axial distance between the third lens and the fourth lens is T34, the axial distance between the fourth lens and the fifth lens is T45, the axial distance between the fifth lens and the sixth lens is T56, the axial distance between the object-side surface of the first lens and the image-side surface of the second lens is Dr1r4, the axial thickness of the third lens on the optical axis is CT3, the focal length of the imaging optical lens group is f, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 6.5 < Dr1r4 / CT3; and 4.4 < f / R6.

2. The imaging optical lens assembly according to claim 1, wherein: The axial distance between the third lens and the fourth lens is T34, the axial distance between the fourth lens and the fifth lens is T45, the axial distance between the fifth lens and the sixth lens is T56, which satisfy the following conditions: 0.30 < (T34 + T45) / T56 < 1.

4.

3. The imaging optical lens assembly according to claim 1, wherein: The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which satisfy the following conditions: 1.95 < V2 / V3 < 3.

50.

4. The imaging optical lens assembly according to claim 1, wherein: The axial distance between the object-side surface of the first lens and the image-side surface of the second lens is Dr1r4, and the axial distance between the object-side surface of the third lens and the image-side surface of the sixth lens is Dr5r12, which satisfy the following conditions: 1.6 < Dr1r4 / Dr5r12 < 2.

3.

5. The imaging optical lens assembly according to claim 1, wherein: The radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the object-side surface of the fourth lens is R7, the focal length of the imaging optical lens group is f, and the focal length of the fourth lens is f4, which satisfy the following conditions: 0 < R7 / |f4| < 0.55; and |f / R5| < 0.

60.

6. The imaging optical lens assembly according to claim 1, wherein: The F-number of the imaging optical lens group is Fno, the maximum distance between the optical effective area of the object-side surface of the second lens and an optical axis is Y21, and the maximum image height of the imaging optical lens group is ImgH, which satisfy the following conditions: 2.0 < Fno < 3.3; and 0.60 < Y21 / ImgH < 1.

0.

7. An imaging device, characterized in that: It includes: The imaging optical lens group according to claim 1; and An electronic photosensitive element disposed on an imaging surface of the imaging optical lens group.

8. The imaging device according to claim 7, wherein: At least one of the six lenses can move relative to the electronic photosensitive element along an optical axis direction.

9. An electronic device, characterized in that: Comprising: The imaging device according to claim 7.

10. An optical lens assembly for imaging, characterized in that: Comprising six lenses, which are, in order from the object side to the image side of an optical path: A first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens; each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; Wherein, the object-side surface of the first lens is convex near the optical axis; The object-side surface of the second lens is convex near the optical axis; The image-side surface of the third lens is concave near the optical axis; The object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis; At least one inflection point is included in the optical effective area of at least one of the second lens to the sixth lens; Wherein, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the focal length of the imaging optical lens group is f, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 6.5 < Dr1r4 / CT3; and 4.4 < f / R6.

11. The imaging optical lens assembly according to claim 10, wherein: The distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the focal length of the imaging optical lens group is f, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: 9.0 < Dr1r4 / CT3 < 45; and 4.9 < f / R6 < 8.

0.

12. The imaging optical lens assembly according to claim 11, wherein: The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4, the thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the focal length of the imaging optical lens group is f, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: 0.47 ≤ (T34 + T4) / T56 ≤ 1.24; 13.80 ≤ Dr1r4 / CT3 ≤ 24.06; 5.42 ≤ f / R6 ≤ 6.25; and 0.68 ≤ CT4 / CT3 ≤ 1.

16.

13. The imaging optical lens assembly according to claim 10, wherein: The focal length of the imaging optical lens group is f, and the radius of curvature of the image-side surface of the fourth lens is R8, which satisfy the following conditions: 1.1 < f / R8 < 4.

5.

14. The imaging optical lens assembly according to claim 10, wherein: The second lens has a positive refractive power; the focal length of the imaging optical lens group is f, the focal length of the second lens is f2, the focal length of the sixth lens is f6, and the radius of curvature of the object-side surface of the second lens is R3, which satisfies the following conditions: 1.3 < f2 / R3 < 3.0; and |f / f6| < 1.

1.

15. The imaging optical lens assembly according to claim 10, wherein: The optical effective area of at least one surface of at least one of the first lens to the sixth lens is non-circular; the imaging optical lens group further includes an aperture, and its optical effective area is non-circular.

16. An optical lens assembly for imaging, characterized in that: It includes six lenses, and the six lenses are arranged in sequence from the object side to the image side of an optical path as follows: A first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens; each of the lenses has an object-side surface facing the object side and an image-side surface facing the image side; Among them, the object-side surface of the first lens is convex near the optical axis; The object-side surface of the second lens is convex near the optical axis; The third lens has a negative refractive power; The object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis; At least one inflection point is included in the optical effective area of at least one of the second lens to the sixth lens; Among them, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the distance between the fifth lens and the sixth lens on the optical axis is T56, and the distance between the object-side surface of the first lens and the image-side surface of the second lens on the optical axis is Dr1r4. The thickness of the third lens on the optical axis is CT3, and the thickness of the fourth lens on the optical axis is CT4, which satisfy the following conditions: 0.10 < (T34 + T45) / T56 < 1.6; 11 < Dr1r4 / CT3 < 45; and 0.10 < CT4 / CT3 < 1.

7.

17. The imaging optical lens assembly according to claim 16, wherein: The thickness of the third lens on the optical axis is CT3, and the thickness of the fourth lens on the optical axis is CT4, which satisfy the following conditions: 0.40 < CT4 / CT3 < 1.

4.

18. The imaging optical lens assembly according to claim 16, wherein: The radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: |R6 / R5| < 0.

16.

19. The imaging optical lens assembly according to claim 16, wherein: The radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the image-side surface of the fourth lens is R8, which satisfy the following conditions: 0.85 < R8 / R7 < 3.

0.

20. The imaging optical lens assembly according to claim 16, wherein: Half of the maximum viewing angle in the imaging optical lens group is HFOV, the maximum distance between the optical effective area of the object-side surface of the second lens and an optical axis is Y21, and the maximum distance between the optical effective area of the image-side surface of the sixth lens and the optical axis is Y62, which satisfy the following conditions: 5.0 degrees < HFOV < 20.0 degrees; and 1.1 < Y21 / Y62 < 1.

5.

21. The imaging optical lens assembly according to claim 16, wherein: The first lens has a positive refractive power; the focal length of the first lens is f1, and the focal length of the third lens is f3, which satisfy the following conditions: -16 < f1 / f3 < -5.

0.

22. The imaging optical lens assembly according to claim 16, wherein: The fifth lens has positive refractive power; the focal length of the fifth lens is f5, and the thickness of the fifth lens on the optical axis is CT5, which meets the following conditions: 6.0 <f5 / CT5<90。 23. The imaging optical lens assembly according to claim 16, wherein: The fifth lens has positive refractive power; the focal length of the third lens is f3, and the focal length of the fifth lens is f5, which meets the following conditions: -15 <f5 / f3<-1.2。 24. The imaging optical lens assembly according to claim 16, wherein: Also includes: At least one reflective surface is located between the object-side surface of the first lens and the object-side surface of the second lens along an optical axis.

Images