Optical imaging system and electronic device

Abstract

The present invention provides an optical imaging system comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, arranged sequentially from the object side toward the imaging plane, wherein the object-side surface of the sixth lens is convex, and wherein one of the first to sixth lenses is a variable focusing lens configured to have a variable focal length.

Description

Technical Field

[0001] This invention relates to an optical imaging system comprising a variable focusing lens configured to have an adjustable focal length. Prior Technology

[0002] Cross-reference of related inventions

[0003] This invention claims priority to Korean Patent No. 10-2021-0174344, filed with the Korean Intellectual Property Office on December 8, 2021. For all purposes, the entire invention described herein is incorporated by reference.

[0004] A camera module may include an optical imaging system. The optical imaging system of the camera module may have a predetermined focal length. For example, the focal length of the optical imaging system may be determined by the lenses constituting the optical imaging system. The camera module can be configured to adjust (autofocus; AF) the focal length of the optical imaging system for sharp image capture. For example, the camera module can adjust its focal length by moving the optical imaging system along the optical axis. However, a camera module with the structure described above can be configured to have a considerably large size to move the optical imaging system along the optical axis, and therefore it can be difficult to miniaturize the camera module and reduce its weight.

[0005] The above information is presented as background information only to aid in understanding the present invention. No determination or statement is made that any of the above applies to prior art related to the present invention. Summary of the Invention

[0006] This invention is provided to present, in a simplified form, the selection of concepts further described below in the embodiments. This invention is not intended to identify key or essential features of the claimed subject matter, nor is it intended to serve as an aid in determining the scope of the claimed subject matter.

[0007] In a general configuration, the optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially from the object side toward the imaging plane, wherein the object-side surface of the sixth lens is convex, and one of the first to sixth lenses is a variable focusing lens configured to have a variable focal length.

[0008] The image-side surface of the first lens can be convex.

[0009] The image-side surface of the second lens can be concave.

[0010] The third lens can be configured as a variable focusing lens.

[0011] The image-side surface of the fourth lens can be convex.

[0012] The object-side surface of the fifth lens can be convex.

[0013] The image-side surface of the sixth lens can be concave.

[0014] SD / TD can be greater than 0.8, where SD is the distance from the aperture stop to the image side surface of the sixth lens, and TD is the distance from the object side surface of the first lens to the image side surface of the sixth lens.

[0015] T1 / TTL can be greater than 0.07 and less than 0.20, where T1 is the thickness of the first lens and TTL is the distance from the object-side surface of the first lens to the imaging plane.

[0016] V1 - V2 can be greater than 25 and less than 45, where V1 is the Abbe number of the first lens and V2 is the Abbe number of the second lens.

[0017] LD / TD can be greater than 0.5, where LD is the distance from the object-side surface of the variable focusing lens to the image-side surface of the sixth lens, and TD is the distance from the object-side surface of the first lens to the image-side surface of the sixth lens.

[0018] fv can be greater than 500 mm and less than 50.0 mm, where fv is the focal length of the variable focusing lens.

[0019] L1S1E / T1 can be less than 2.0, where L1S1E is the effective diameter of the object-side surface of the first lens, and T1 is the thickness of the first lens.

[0020] D12 / f can be less than 0.2, where D12 is the distance from the image-side surface of the first lens to the object-side surface of the second lens, and f is the focal length of the optical imaging system.

[0021] L3S1ER can be less than 1.5 mm, where L3S1ER is the effective radius of the object-side surface of the third lens.

[0022] The electronic device may include a camera module containing an optical imaging system, wherein the optical imaging system may further include an image sensor having a surface on which an imaging plane is formed.

[0023] In another general form, the optical imaging system includes: a first lens having refractive power; a second lens having refractive power; a third lens having refractive power; a fourth lens having a convex object-side surface and a convex image-side surface; a fifth lens having a convex object-side surface; and a sixth lens having refractive power, wherein the first to sixth lenses are arranged sequentially from the object-side surface, and wherein 0.001 < f1 / f6 < 0.026, where f1 is the focal length of the first lens and f6 is the focal length of the sixth lens.

[0024] In another general form, the optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially from the object side toward the imaging plane, wherein the third lens is a variable focusing lens configured to have a variable focal length, and wherein 0.07 < T1 / TTL < 0.20, where T1 is the thickness of the first lens and TTL is the distance from the object-side surface of the first lens to the imaging plane.

[0025] Other features and characteristics will become apparent from the following embodiments, drawings, and the scope of the claims. Simple Explanation of the Diagram

[0026] Figure 1 is a view illustrating an optical imaging system according to a first exemplary embodiment of the present invention. Figure 2 presents a graph showing the aberration characteristics of the optical imaging system shown in Figure 1. Figure 3 is a view illustrating an optical imaging system according to a second exemplary embodiment of the present invention. Figure 4 presents a graph showing the aberration characteristics of the optical imaging system shown in Figure 3. Figure 5 is a view illustrating an optical imaging system according to a third example embodiment of the present invention. Figure 6 presents a graph showing the curves representing the aberration characteristics of the optical imaging system shown in Figure 5. Figure 7 is a view illustrating an optical imaging system according to a fourth exemplary embodiment of the present invention. Figure 8 presents a graph showing the aberration characteristics of the optical imaging system shown in Figure 7. Figure 9 is a view illustrating an optical imaging system according to a fifth exemplary embodiment of the present invention. Figure 10 presents a graph showing curves representing the aberration characteristics of the optical imaging system shown in Figure 9. Figure 11 is a view illustrating an optical imaging system according to a sixth exemplary embodiment of the present invention. Figure 12 presents a graph with curves representing the aberration characteristics of the optical imaging system shown in Figure 11. Figure 13 is a view illustrating an optical imaging system according to a seventh exemplary embodiment of the present invention. Figure 14 presents a graph with curves representing the aberration characteristics of the optical imaging system shown in Figure 13. Figure 15 is a view illustrating an optical imaging system according to an eighth exemplary embodiment of the present invention. Figure 16 presents a graph with curves representing the aberration characteristics of the optical imaging system shown in Figure 15. Figure 17 is a view illustrating an optical imaging system according to a ninth exemplary embodiment of the present invention. Figure 18 presents a graph with curves representing the aberration characteristics of the optical imaging system shown in Figure 17. Figure 19 is a view illustrating an optical imaging system according to a tenth exemplary embodiment of the present invention. Figure 20 presents a graph with curves representing the aberration characteristics of the optical imaging system shown in Figure 19. Figure 21 is a view showing one form of a variable focusing lens. Figure 22 is a view showing a camera module according to an example embodiment. Throughout the drawings and embodiments, the same reference numerals refer to the same components. The drawings may not be to scale, and for clarity and convenience, the relative size, scale, and description of the components in the drawings may be enlarged. Implementation

[0027] In the following, although exemplary embodiments of the invention will be described in detail with reference to the accompanying illustrative drawings, it should be noted that the examples are not limited to those described in the accompanying drawings.

[0028] The following detailed description is provided to assist the reader in gaining a full understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent after understanding the invention. For example, the sequence of operations described herein is merely an example and is not limited to the examples set forth herein, but the order of operations may be changed, as will become apparent after understanding the invention, except for operations that must occur in a certain order. Furthermore, for the sake of increased clarity and conciseness, descriptions of features known in the art may be omitted.

[0029] The features described herein may be implemented in various forms and should not be construed as being limited to the instances described herein. In fact, the instances described herein are provided merely to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein, as will become apparent upon understanding the invention.

[0030] In the following description of the invention, terms referring to components of the invention will be used in consideration of the function of the individual components, and therefore should not be construed as limiting the technical components of the invention.

[0031] Throughout this specification, when an element such as a layer, region, or substrate is described as being "on" another element, "connected" to another element, or "coupled to" another element, the element may be directly "on" another element, "connected" to another element, or "coupled to" another element, or there may be one or more other elements intervening between the element and the other element. Conversely, when an element is described as being "directly on" another element, "directly connected" to another element, or "directly coupled to" another element, there may be no other elements intervening between the element and the other element.

[0032] The terminology used herein is for the purpose of describing various instances only and is not intended to limit the invention. Unless the context clearly indicates otherwise, the articles "a," "an," and "described" are intended to include the plural form as well. The terms "comprising," "including," and "having" specify the presence of stated features, numbers, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0033] As used herein, the term "and / or" includes any two or more of the associated listed items and any combination thereof; similarly, "at least one of..." includes any two or more of the associated listed items and any combination thereof.

[0034] Although terms such as "first," "second," and "third" may be used herein to describe various components, assemblies, areas, layers, or sections, such components, assemblies, areas, layers, or sections are not limited to these terms. In fact, these terms are used only to distinguish one component, assembly, area, layer, or section from another. Therefore, without departing from the teaching of the examples described herein, the first component, assembly, area, layer, or section referred to as the second component, assembly, area, layer, or section may also be referred to as the second component, assembly, area, layer, or section.

[0035] For ease of description, spatial relative terms such as "above," "upper," "below," "lower," and similar terms are used herein to describe the relationship between one element and another as illustrated in the diagrams. In addition to the orientation depicted in the diagrams, such spatial relative terms are intended to cover different orientations of the device during use or operation. For example, if the device in the diagrams is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to that element. Thus, depending on the spatial orientation of the device, the term "above" encompasses both upper and lower orientations. The device may also be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative terms used herein will be interpreted accordingly.

[0036] Due to manufacturing techniques and / or limitations, the shapes depicted in the drawings may vary. Therefore, the examples described herein are not limited to the specific shapes depicted in the drawings, but include shape changes that occur during manufacturing.

[0037] In this document, it should be noted that, with regard to instances, such as what an instance may contain or implement, the term "may" means that there exists at least one instance that contains or implements this feature, but not all instances are limited to this.

[0038] As will be apparent upon understanding this invention, the features of the examples described herein can be combined in various ways. Furthermore, although the examples described herein have various configurations, other configurations are possible, as will be apparent upon understanding this invention.

[0039] The present invention provides an optical imaging system that can be configured to enable miniaturization and weight reduction of camera modules.

[0040] In this invention, the first lens refers to the lens closest to the object (or individual), and the sixth lens refers to the lens closest to the imaging plane (or image sensor). Furthermore, all radii of curvature, thickness, TTL (distance from the object-side surface of the first lens to the imaging plane), IMGHT (height of the imaging plane), and focal length of the lenses are expressed in millimeters (mm). The thickness of the lenses, the gaps between lenses, and the TTL are distances calculated based on the optical axis of the lenses. In the description of the lens shape, a convex surface means that the optical axis portion of the corresponding surface is convex, and a concave surface means that the optical axis portion of the corresponding surface is concave. Therefore, even when a lens is described as having one convex surface, the edge portion of the lens may be concave. Similarly, even when a lens is described as having one concave surface, the edge portion of the lens may be convex.

[0041] The optical imaging system described herein can be configured for installation in mobile electronic devices. For example, it can be installed in smartphones, laptops, augmented reality devices, virtual reality devices (VR), portable racing machines, or the like. However, the applications and examples of the optical imaging system described herein are not limited to the electronic devices described above. For instance, the optical imaging system can be applied to electronic devices requiring high-resolution image capture within narrow installation spaces.

[0042] The optical imaging system according to the first aspect of the present invention may include a plurality of lenses arranged sequentially from the object side. For example, the optical imaging system according to the first aspect may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially from the object side toward the imaging plane.

[0043] The optical imaging system according to the first configuration may include a variable focusing lens configured to have a variable focal length. For example, one of the first to sixth lenses may be a variable focusing lens. The variable focusing lens may have a focal length within a predetermined range. For example, the variable focusing lens may have a focal length from -1100 mm to 60 mm. The variable focusing lens may be configured such that its focal length changes continuously. For example, since the radius of curvature of the image-side surface of the variable focusing lens can be arbitrarily changed within the range of 600 mm to -50 mm, the variable focusing lens may have any focal length within the range described above. As a specific example, the focal length of the variable focusing lens may be changed to any value within the range described above, such as -980 mm, -870 mm, 10 mm, or 32 mm.

[0044] The optical imaging system according to the first state may include a lens, one surface of which is convex. For example, the optical imaging system according to the first state may include a sixth lens, the object-side surface of which is convex.

[0045] The optical imaging system of the first configuration described above can have multiple focal lengths via a variable focusing lens. For example, the focal length of the optical imaging system can be changed by altering the focal length of the variable focusing lens. As an example, when the variable focusing lens has its maximum focal length, the optical imaging system can have a maximum first focal length. As another example, when the variable focusing lens has its normal focal length, the optical imaging system can also have a normal second focal length. As yet another example, when the variable focusing lens has its minimum focal length, the optical imaging system can have a minimum third focal length. The optical imaging system of the first configuration can capture images of individuals located at different distances or perform automatic focusing (AF) of the camera module via focal lengths from the first to the third focal length.

[0046] A variable focusing lens may have a predetermined Abbe number. As an example, the Abbe number of a variable focusing lens may be less than 40. As a specific example, the Abbe number of a variable focusing lens may be greater than 20 and less than 40. A variable focusing lens may have a predetermined refractive index. As an example, the refractive index of a variable focusing lens may be less than 1.6. As a specific example, the refractive index of a variable focusing lens may be greater than 1.5 and less than 1.6.

[0047] The optical imaging system according to the second aspect of the present invention may include a plurality of lenses arranged sequentially from the object side. For example, the optical imaging system according to the second aspect may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially from the object side toward the imaging plane.

[0048] The optical imaging system according to the second state may include two or more lenses, at least one of which has a convex surface. For example, the optical imaging system according to the second state may include a fourth lens and a fifth lens, wherein the object-side surface of the fourth lens is convex and the image-side surface is convex, and the object-side surface of the fifth lens is convex.

[0049] The optical imaging system according to the second state can satisfy a predetermined conditional expression. For example, the optical imaging system according to the second state can satisfy the conditional expression: 0.001 < |f1 / f6| < 0.026, where f1 is the focal length of the first lens and f6 is the focal length of the sixth lens.

[0050] The optical imaging system of the third state according to the present invention can be configured to satisfy one or more of the following conditional expressions. As an example, the optical imaging system of the third state can include six lenses and can satisfy two or more of the following conditional expressions. As another example, the optical imaging system of the third state can include six lenses and can be configured to satisfy all of the following conditional expressions. 0.9 < SD / TD 0.07 < T1 / TTL < 0.20 25 < V1 - V2 < 45 0.5 < LD / TD < 0.8 -500 mm < fv < 50.0 mm L1S1E / T1 < 2.0 D12 / f < 0.2 L3S1ER < 1.5 mm

[0051] Here, SD is the distance from the aperture stop to the image-side surface of the sixth lens, TD is the distance from the object-side surface of the first lens to the image-side surface of the sixth lens, T1 is the thickness of the first lens, TTL is the distance from the object-side surface of the first lens to the imaging plane, V1 is the Abbe number of the first lens, V2 is the Abbe number of the second lens, LD is the distance from the object-side surface of the variable focusing lens to the image-side surface of the sixth lens, fv is the focal length of the variable focusing lens, L1S1E is the effective diameter of the object-side surface of the first lens, D12 is the distance from the image-side surface of the first lens to the object-side surface of the second lens, f is the focal length of the optical imaging system, and L3S1ER is the effective radius of the object-side surface of the third lens.

[0052] Optical imaging systems can satisfy some of the conditional expressions described above in a more limited form, as follows. 1.7 < L1S1E / T1 < 2.0 0.005 < D12 / f < 0.01 1.0 mm < L3S1ER < 1.4 mm

[0053] The optical imaging system of the fourth state according to the present invention can be configured to satisfy one or more of the following conditional expressions. As an example, the optical imaging system of the fourth state can include six lenses and can satisfy two or more of the following conditional expressions. As another example, the optical imaging system of the fourth state can include six lenses and can be configured to satisfy all of the following conditional expressions. -1.2 < f2 / f4 < -0.4 0.7 < f2 / f5 < 1.2 -1.2 < (R1+R2) / (R1-R2) < -0.4 0.01 < R1 / (R9+R10) < 0.12 0.6 < R1 / (R11+R12) < 1.2 8.0 < (R9+R10) / (R11+R12) < 12.0 1.6 < R1 / R11 < 2.0

[0054] Here, f2 is the focal length of the second lens, f4 is the focal length of the fourth lens, f5 is the focal length of the fifth lens, R1 is the radius of curvature of the object-side surface of the first lens, R2 is the radius of curvature of the image-side surface of the first lens, R9 is the radius of curvature of the object-side surface of the fifth lens, R10 is the radius of curvature of the image-side surface of the fifth lens, R11 is the radius of curvature of the object-side surface of the sixth lens, and R12 is the radius of curvature of the image-side surface of the sixth lens.

[0055] If necessary, the optical imaging system according to the first to fourth states may include one or more lenses having the following characteristics. As an example, the optical imaging system according to the first state may include one of the first to sixth lenses with the following characteristics. As another example, the optical imaging system according to the second state may include two or more of the first to sixth lenses with the following characteristics. However, the optical imaging system according to the states described above need not include lenses with the following characteristics.

[0056] The characteristics of the first through sixth lenses will be described below.

[0057] The first lens may have a predetermined refractive power. For example, the first lens may have positive refractive power. One surface of the first lens may be convex. For example, the image-side surface of the first lens may be convex. The first lens may have an aspherical surface. For example, both surfaces of the first lens may be aspherical. The first lens may be formed of a material with high light transmittance and excellent processability. For example, the first lens may be formed of plastic. However, the material of the first lens is not limited to plastic. For example, the first lens may be formed of glass. The first lens may have a predetermined refractive index. For example, the refractive index of the first lens may be greater than 1.5 and less than 1.6. The first lens may have a predetermined Abbe number. For example, the Abbe number of the first lens may be greater than 50 and less than 60.

[0058] The second lens may have refractive power. For example, the second lens may have negative refractive power. One surface of the second lens may be concave. For example, the image-side surface of the second lens may be concave. The second lens may have an aspherical surface. For example, both surfaces of the second lens may be aspherical. The second lens may be formed of a material with high light transmittance and excellent processability. For example, the second lens may be formed of plastic. However, the material of the second lens is not limited to plastic. For example, the second lens may be formed of glass. The second lens may have a predetermined refractive index. For example, the refractive index of the second lens may be greater than 1.6 and less than 1.7. The second lens may have a predetermined Abbe number. For example, the Abbe number of the second lens may be greater than 18 and less than 24.

[0059] The third lens may have refractive power. For example, the third lens may have positive or negative refractive power. The third lens may be configured to enable the optical imaging system to autofocus. For example, the third lens may be configured as a variable focusing lens with a variable focal length.

[0060] The fourth lens may have refractive power. For example, the fourth lens may have positive refractive power. One surface of the fourth lens may be convex. For example, the image-side surface of the fourth lens may be convex. The fourth lens may have an aspherical surface. For example, the object-side surface or the image-side surface of the fourth lens may be aspherical. The fourth lens may be formed of a material with high light transmittance and excellent processability. For example, the fourth lens may be formed of plastic. However, the material of the fourth lens is not limited to plastic. The fourth lens may have a predetermined refractive index. For example, the refractive index of the fourth lens may be greater than 1.5 and less than 1.6. The fourth lens may have a predetermined Abbe number. For example, the Abbe number of the fourth lens may be greater than 50 and less than 60.

[0061] The fifth lens may have refractive power. For example, the fifth lens may have negative refractive power. One surface of the fifth lens may be convex. For example, the object-side surface of the fifth lens may be convex. The fifth lens may have an aspherical surface. For example, either the object-side surface or the image-side surface of the fifth lens may be aspherical. The fifth lens may include a curvature point. For example, the curvature point may be formed on at least one of the object-side surface and the image-side surface of the fifth lens. The fifth lens may be formed of a material with high light transmittance and excellent processability. For example, the fifth lens may be formed of plastic. However, the material of the fifth lens is not limited to plastic. The fifth lens may have a predetermined refractive index. For example, the refractive index of the fifth lens may be greater than 1.6 and less than 1.7. The fifth lens may have a predetermined Abbe number. For example, the Abbe number of the fifth lens may be greater than 18 and less than 24.

[0062] The sixth lens may have refractive power. For example, the sixth lens may have positive or negative refractive power. One surface of the sixth lens may be convex. For example, the object-side surface of the sixth lens may be convex. The sixth lens may have an aspherical surface. For example, the object-side surface or the image-side surface of the sixth lens may be aspherical. The sixth lens may include a curvature point. For example, the curvature point may be formed on at least one of the object-side surface and the image-side surface of the sixth lens. The sixth lens may be formed of a material with high light transmittance and excellent processability. For example, the sixth lens may be formed of plastic. However, the material of the sixth lens is not limited to plastic. The sixth lens may have a predetermined refractive index. For example, the refractive index of the sixth lens may be greater than 1.5 and less than 1.6. The sixth lens may have a predetermined Abbe number. For example, the Abbe number of the sixth lens may be greater than 50 and less than 60.

[0063] The aspherical surfaces of the first to sixth lenses can be represented by the following Equation 1: Equation 1 .

[0064] Here, c is the reciprocal of the radius of curvature of the lens, k is the conic constant, r is the distance from a point on the aspherical surface of the lens to the optical axis, A to H and J are aspherical constants, and Z (or SAG) is the distance between a point at a distance r on the aspherical surface of the lens and the tangential plane intersecting the vertex of the aspherical surface of the lens.

[0065] The optical imaging system may further include a cover glass. As an example, the optical imaging system may include a cover glass disposed on the object-side surface or image-side surface of the variable focusing lens. The optical imaging system may further include a filter. The filter may be disposed between the sixth lens and the imaging plane. The filter may be configured to block light of a specific wavelength. For example, the filter may be configured to block infrared light. The optical imaging system may include an imaging plane. The imaging plane may be formed on the surface of the image sensor or inside the image sensor.

[0066] Next, an optical imaging system according to an example embodiment will be described with reference to the figures.

[0067] An optical imaging system according to a first exemplary embodiment is described below with reference to FIG1.

[0068] The optical imaging system 100 according to the first embodiment may include a plurality of lenses. For example, the optical imaging system 100 may include a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, and a sixth lens 160.

[0069] The optical imaging system 100 may include a variable focusing lens. For example, one of the first lens 110 to the sixth lens 160 may be a variable focusing lens.

[0070] The first lens 110 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 120 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 130 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 140 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 150 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 150 may have a point of inflection. The sixth lens 160 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 160 may have a point of inflection.

[0071] The optical imaging system 100 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 100 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 110. The optical imaging system 100 may include a filter IF. The filter IF may be disposed between the sixth lens 160 and the imaging plane IP.

[0072] Tables 1 and 2 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 2 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0073] Table 1 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7461 0.8000 1.543 56.0 0.725 S2 -37.0464 0.0238 0.772 S3 Second lens 12.4311 0.2300 1.657 20.4 0.797 S4 3.7397 0.2237 0.837 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 58.4652 0.3671 1.534 55.7 1.260 S10 -9.2419 0.1400 1.432 S11 Fifth lens 14.1905 0.4500 1.647 21.5 1.760 S12 4.5126 0.2731 2.180 S13 Sixth lens 1.0064 0.5273 1.534 55.7 2.460 S14 0.8104 0.5288 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2004 S17 Imaging plane -0.0142

[0074] Table 2 Surface number S1 S2 S3 S4 S9 K -4.4324E-01 9.9000E+01 -9.9000E+01 9.0145E+00 9.9000E+01 A -3.6340E-02 -2.4231E-01 -2.0389E-01 -1.0594E-01 2.5905E-02 B -1.4126E+00 -1.5267E+00 1.4421E+00 3.5022E+00 -2.7251E-01 C 6.9935E+01 3.9611E+01 -4.0407E+01 -5.4949E+01 1.2755E+00 D -1.4017E+03 -4.7144E+02 7.9271E+02 5.6219E+02 -6.8610E+00 E 1.6495E+04 3.7130E+03 -9.2009E+03 -3.9369E+03 2.9589E+01 F -1.2738E+05 -2.1234E+04 6.8777E+04 1.9602E+04 -8.3432E+01 G 6.7928E+05 9.2300E+04 -3.4939E+05 -7.1001E+04 1.5115E+02 H -2.5647E+06 -3.0987E+05 1.2418E+06 1.8911E+05 -1.7625E+02 J 6.9138E+06 7.9614E+05 -3.1243E+06 -3.7023E+05 1.2680E+02 L -1.3227E+07 -1.5225E+06 5.5435E+06 5.2632E+05 -4.5987E+01 M 1.7541E+07 2.0759E+06 -6.7880E+06 -5.2830E+05 -3.2030E+00 N -1.53​​33E+07 -1.8913E+06 5.4614E+06 3.5472E+05 1.0797E+01 O 7.9447E+06 1.0258E+06 -2.5991E+06 -1.4285E+05 -4.2367E+00 P -1.8482E+06 -2.4950E+05 5.5459E+05 2.6070E+04 5.7960E-01 Surface number S10 S11 S12 S13 S14 K -5.3006E+01 6.0508E+01 -7.0390E+00 -2.5565E+00 -9.6103E-01 A 2.2552E-01 3.1755E-01 -2.8524E-01 -7.2886E-01 -8.3591E-01 B 4.4258E-01 2.5092E-01 1.6724E+00 1.2687E+00 1.1088E+00 C -6.5908E+00 -3.2956E+00 -4.0000E+00 -1.5483E+00 -1.2029E+00 D 2.5873E+01 9.3938E+00 5.6633E+00 1.2315E+00 9.6210E-01 E -6.2403E+01 -1.6550E+01 -5.4012E+00 -6.3044E-01 -5.6639E-01 F 1.0713E+02 2.0630E+01 3.6597E+00 1.8061E-01 2.4756E-01 G -1.3745E+02 -1.8886E+01 -1.8090E+00 -4.0425E-03 -8.1046E-02 H 1.3318E+02 1.2781E+01 6.5995E-01 -1.9833E-02 1.9932E-02 J -9.6641E+01 -6.3480E+00 -1.7773E-01 8.9985E-03 -3.6606E-03 L 5.1435E+01 2.2732E+00 3.4917E-02 -2.1660E-03 4.9365E-04 M -1.9398E+01 -5.6880E-01 -4.8674E-03 3.2396E-04 -4.7364E-05 N 4.8912E+00 9.4089E-02 4.5613E-04 -3.0211E-05 3.0559E-06 O -7.3779E-01 -9.2266E-03 -2.5759E-05 1.6168E-06 -1.1871E-07 P 5.0255E-02 4.0566E-04 6.6213E-07 -3.8058E-08 2.0961E-09

[0075] The optical imaging system according to the second embodiment will be described with reference to Figure 3.

[0076] The optical imaging system 200 according to the second embodiment may include a plurality of lenses. For example, the optical imaging system 200 may include a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, and a sixth lens 260.

[0077] The optical imaging system 200 may include a variable focusing lens. For example, one of the first lens 210 to the sixth lens 260 may be a variable focusing lens.

[0078] The first lens 210 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 220 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 230 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 240 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 250 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 250 may have a point of inflection. The sixth lens 260 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 260 may have a point of inflection.

[0079] The optical imaging system 200 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 200 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 210. The optical imaging system 200 may include a filter IF. The filter IF may be disposed between the sixth lens 260 and the imaging plane IP.

[0080] Tables 3 and 4 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 4 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0081] Table 3 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7458 0.8000 1.543 56.0 0.725 S2 -50.5255 0.0238 0.772 S3 Second lens 11.4592 0.2300 1.657 20.4 0.798 S4 3.7218 0.2244 0.837 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.6929 0.3674 1.534 55.7 1.260 S10 -9.2481 0.1400 1.432 S11 Fifth lens 14.2607 0.4500 1.647 21.5 1.760 S12 4.2986 0.2672 2.180 S13 Sixth lens 0.9949 0.5322 1.534 55.7 2.460 S14 0.8126 0.5288 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2033 S17 Imaging plane -0.0171

[0082] Table 4 Surface number S1 S2 S3 S4 S9 K -4.5052E-01 9.9000E+01 -9.9000E+01 9.0139E+00 9.9000E+01 A -4.1776E-02 -2.6519E-01 -1.9069E-01 -1.1172E-01 2.0910E-02 B -1.5395E+00 -6.0826E-01 1.1161E+00 3.7605E+00 -2.1760E-01 C 7.8909E+01 1.7192E+01 -3.5488E+01 -5.9815E+01 1.1567E+00 D -1.5931E+03 -1.5393E+02 7.3466E+02 6.1656E+02 -7.5206E+00 E 1.8767E+04 7.8922E+02 -8.6782E+03 -4.3331E+03 3.4455E+01 F -1.4474E+05 -2.5998E+03 6.5336E+04 2.1573E+04 -9.7580E+01 G 7.7010E+05 7.2537E+03 -3.3308E+05 -7.7860E+04 1.7418E+02 H -2.9002E+06 -2.7314E+04 1.1863E+06 2.0591E+05 -1.9745E+02 J 7.7992E+06 1.1084E+05 -2.9890E+06 -3.9898E+05 1.3446E+02 L -1.4887E+07 -3.2165E+05 5.3093E+06 5.5976E+05 -4.0660E+01 M 1.9704E+07 5.9579E+05 -6.5075E+06 -5.5314E+05 -1.1514E+01 N -1.7195E+07 -6.7462E+05 5.2403E+06 3.6488E+05 1.5428E+01 O 8.8975E+06 4.2737E+05 -2.4959E+06 -1.4412E+05 -5.5109E+00 P -2.0677E+06 -1.1635E+05 5.3298E+05 2.5761E+04 7.2319E-01 Surface number S10 S11 S12 S13 S14 K -6.6948E+01 6.0232E+01 -7.8317E+00 -2.5742E+00 -9.6125E-01 A 2.0117E-01 2.9361E-01 -3.1513E-01 -7.3728E-01 -8.2851E-01 B 7.0064E-01 4.8478E-01 1.8347E+00 1.3438E+00 1.1017E+00 C -7.6739E+00 -4.2751E+00 -4.4829E+00 -1.7680E+00 -1.2051E+00 D 2.8145E+01 1.1849E+01 6.5534E+00 1.5908E+00 9.6895E-01 E -6.4260E+01 -2.0709E+01 -6.4902E+00 -9.9818E-01 -5.6783E-01 F 1.0490E+02 2.5703E+01 4.5874E+00 4.3151E-01 2.4409E-01 G -1.2909E+02 -2.3485E+01 -2.3759E+00 -1.2275E-01 -7.7689E-02 H 1.2150E+02 1.5909E+01 9.1217E-01 1.9976E-02 1.8405E-02 J -8.6725E+01 -7.9341E+00 -2.5960E-01 -5.3786E-04 -3.2359E-03 L 4.5859E+01 2.8618E+00 5.4099E-02 -5.4393E-04 4.1651E-04 M -1.7299E+01 -7.2332E-01 -8.0248E-03 1.3253E-04 -3.8133E-05 N 4.3799E+00 1.2116E-01 8.0225E-04 -1.5304E-05 2.3521E-06 O -6.6460E-01 -1.2059E-02 -4.8430E-05 9.2774E-07 -8.7658E-08 P 4.5559E-02 5.3907E-04 1.3328E-06 -2.3738E-08 1.4919E-09

[0083] The optical imaging system according to the third example embodiment will be described with reference to FIG5.

[0084] The optical imaging system 300 according to the third embodiment may include a plurality of lenses. For example, the optical imaging system 300 may include a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, and a sixth lens 360.

[0085] The optical imaging system 300 may include a variable focusing lens. For example, one of the first lens 310 to the sixth lens 360 may be a variable focusing lens.

[0086] The first lens 310 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 320 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 330 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 340 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 350 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 350 may have a point of inflection. The sixth lens 360 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 360 may have a point of inflection.

[0087] The optical imaging system 300 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 300 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 310. The optical imaging system 300 may include a filter IF. The filter IF may be disposed between the sixth lens 360 and the imaging plane IP.

[0088] Tables 5 and 6 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 6 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0089] Table 5 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7437 0.8000 1.543 56.0 0.725 S2 -102.4008 0.0238 0.772 S3 Second lens 10.2829 0.2300 1.667 19.2 0.798 S4 3.7195 0.2217 0.836 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 59.4471 0.3688 1.534 55.7 1.260 S10 -9.2225 0.1400 1.432 S11 Fifth lens 14.3214 0.4500 1.647 21.5 1.760 S12 4.3088 0.2674 2.180 S13 Sixth lens 0.9944 0.5333 1.534 55.7 2.460 S14 0.8118 0.5286 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2040 S17 Imaging plane -0.0176

[0090] Table 6 Surface number S1 S2 S3 S4 S9 K -4.3852E-01 9.9000E+01 -8.1945E+01 8.9767E+00 9.9000E+01 A -3.5617E-02 -2.5793E-01 -1.8439E-01 -1.1568E-01 2.9454E-03 B -1.7255E+00 -9.5577E-01 9.7642E-01 3.8557E+00 6.2932E-02 C 8.2096E+01 2.3033E+01 -3.3310E+01 -6.1235E+01 -1.4242E+00 D -1.6320E+03 -2.1567E+02 7.0956E+02 6.2905E+02 7.4182E+00 E 1.9164E+04 1.2357E+03 -8.4748E+03 -4.4014E+03 -2.3086E+01 F -1.4815E+05 -4.9321E+03 6.4195E+04 2.1798E+04 5.6011E+01 G 7.9274E+05 1.6490E+04 -3.2865E+05 -7.8191E+04 -1.1754E+02 H -3.0093E+06 -5.6058E+04 1.1744E+06 2.0534E+05 2.0254E+02 J 8.1706E+06 1.8190E+05 -2.9675E+06 -3.9474E+05 -2.6268E+02 L -1.5766E+07 -4.5810E+05 5.2848E+06 5.4893E+05 2.4225E+02 M 2.1114E+07 7.8907E+05 -6.4931E+06 -5.3716E+05 -1.5250E+02 N -1.8658E+07 -8.6141E+05 5.2407E+06 3.5057E+05 6.2102E+01 O 9.7820E+06 5.3592E+05 -2.5017E+06 -1.3686E+05 -1.4734E+01 P -2.3044E+06 -1.4473E+05 5.3538E+05 2.4158E+04 1.5465E+00 Surface number S10 S11 S12 S13 S14 K -6.4886E+01 6.0458E+01 -8.0160E+00 -2.5738E+00 -9.6133E-01 A 1.9823E-01 2.9754E-01 -3.1630E-01 -7.3204E-01 -8.2226E-01 B 7.3243E-01 4.4039E-01 1.8297E+00 1.3049E+00 1.0655E+00 C -7.9286E+00 -4.0448E+00 -4.4538E+00 -1.6592E+00 -1.1217E+00 D 2.9344E+01 1.1116E+01 6.5000E+00 1.4277E+00 8.6214E-01 E -6.7713E+01 -1.9116E+01 -6.4388E+00 -8.4679E-01 -4.8070E-01 F 1.1138E+02 2.3254E+01 4.5601E+00 3.3782E-01 1.9561E-01 G -1.3738E+02 -2.0792E+01 -2.3698E+00 -8.2491E-02 -5.8632E-02 H 1.2885E+02 1.3783E+01 9.1393E-01 7.7137E-03 1.3022E-02 J -9.1255E+01 -6.7315E+00 -2.6144E-01 2.1239E-03 -2.1396E-03 L 4.7770E+01 2.3801E+00 5.4772E-02 -9.5203E-04 2.5705E-04 M -1.7827E+01 -5.9027E-01 -8.1658E-03 1.7556E-04 -2.1984E-05 N 4.4668E+00 9.7096E-02 8.1997E-04 -1.8257E-05 1.2709E-06 O -6.7125E-01 -9.4950E-03 -4.9677E-05 1.0457E-06 -4.4649E-08 P 4.5612E-02 4.1727E-04 1.3706E-06 -2.5794E-08 7.2246E-10

[0091] The optical imaging system according to the fourth example embodiment will be described with reference to FIG7.

[0092] The optical imaging system 400 according to the fourth embodiment may include a plurality of lenses. For example, the optical imaging system 400 may include a first lens 410, a second lens 420, a third lens 430, a fourth lens 440, a fifth lens 450, and a sixth lens 460.

[0093] The optical imaging system 400 may include a variable focusing lens. For example, one of the first lens 410 to the sixth lens 460 may be a variable focusing lens.

[0094] The first lens 410 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The second lens 420 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 430 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 440 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 450 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 450 may have a point of inflection. The sixth lens 460 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 460 may have a point of inflection.

[0095] The optical imaging system 400 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 400 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 410. The optical imaging system 400 may include a filter IF. The filter IF may be disposed between the sixth lens 460 and the imaging plane IP.

[0096] Tables 7 and 8 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 8 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0097] Table 7 Surface number Components radius of curvature Thickness / Distance Refractive index Abbe number Effective radius S1 First lens 1.7466 0.8150 1.543 56.0 0.725 S2 61.5649 0.0238 0.772 S3 Second lens 8.1279 0.2300 1.667 19.2 0.800 S4 3.6934 0.2263 0.837 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 66.8001 0.3687 1.534 55.7 1.260 S10 -9.1120 0.1400 1.432 S11 Fifth lens 14.6828 0.4500 1.647 21.5 1.760 S12 4.3259 0.2560 2.180 S13 Sixth lens 0.9923 0.5252 1.534 55.7 2.460 S14 0.8100 0.5285 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2024 S17 Imaging plane -0.0159

[0098] Table 8 Surface number S1 S2 S3 S4 S9 K -4.2423E-01 -9.9000E+01 -7.1418E+01 9.1132E+00 9.9000E+01 A -3.1219E-02 -2.1145E-01 -1.5126E-01 -1.0288E-01 1.1837E-02 B -1.7981E+00 -3.2869E+00 -1.7140E-01 3.4558E+00 3.2438E-03 C 8.0593E+01 7.8574E+01 -8.4556E+00 -5.3204E+01 -6.8871E-01 D -1.5667E+03 -1.0648E+03 3.3589E+02 5.2467E+02 2.0331E+00 E 1.8151E+04 9.8637E+03 -4.6480E+03 -3.4935E+03 1.4844E+00 F -1.3891E+05 -6.5086E+04 3.7161E+04 1.6315E+04 -1.8600E+01 G 7.3701E+05 3.1128E+05 -1.9446E+05 -5.4631E+04 4.0098E+01 H -2.7756E+06 -1.0860E+06 7.0049E+05 1.3245E+05 -3.5195E+01 J 7.4772E+06 2.7569E+06 -1.7720E+06 -2.3221E+05 -4.2851E+00 L -1.4314E+07 -5.0276E+06 3.1479E+06 2.9036E+05 4.0970E+01 M 1.9018E+07 6.4064E+06 -3.8504E+06 -2.5123E+05 -4.2755E+01 N -1.6668E+07 -5.4084E+06 3.0905E+06 1.4193E+05 2.2309E+01 O 8.6666E+06 2.7154E+06 -1.4662E+06 -4.6611E+04 -6.1141E+00 P -2.0244E+06 -6.1336E+05 3.1175E+05 6.6368E+03 7.0287E-01 Surface number S10 S11 S12 S13 S14 K -8.1215E+01 6.1847E+01 -8.3624E+00 -2.5798E+00 -9.6148E-01 A 1.8258E-01 2.8599E-01 -3.2009E-01 -7.5268E-01 -8.3773E-01 B 8.1576E-01 5.0723E-01 1.8765E+00 1.4101E+00 1.1226E+00 C -8.1492E+00 -4.3279E+00 -4.6019E+00 -1.9079E+00 -1.2360E+00 D 2.9508E+01 1.1919E+01 6.7279E+00 1.7847E+00 9.9799E-01 E -6.6752E+01 -2.0765E+01 -6.6391E+00 -1.1800E+00 -5.8482E-01 F 1.0760E+02 2.5771E+01 4.6603E+00 5.4847E-01 2.5020E-01 G -1.3021E+02 -2.3607E+01 -2.3901E+00 -1.7528E-01 -7.8962E-02 H 1.2010E+02 1.6059E+01 9.0645E-01 3.6666E-02 1.8509E-02 J -8.3838E+01 -8.0473E+00 -2.5432E-01 -4.3042E-03 -3.2191E-03 L 4.3326E+01 2.9160E+00 5.2165E-02 5.5368E-05 4.1047E-04 M -1.5970E+01 -7.3996E-01 -7.6076E-03 6.6877E-05 -3.7328E-05 N 3.9516E+00 1.2434E-01 7.4716E-04 -1.0598E-05 2.2946E-06 O -5.8605E-01 -1.2403E-02 -4.4291E-05 7.2941E-07 -8.5520E-08 P 3.9268E-02 5.5514E-04 1.1967E-06 -2.0021E-08 1.4603E-09

[0099] The optical imaging system according to the fifth embodiment will be described with reference to Figure 9.

[0100] The optical imaging system 500 according to the fifth embodiment may include a plurality of lenses. For example, the optical imaging system 500 may include a first lens 510, a second lens 520, a third lens 530, a fourth lens 540, a fifth lens 550, and a sixth lens 560.

[0101] The optical imaging system 500 may include a variable focusing lens. For example, one of the first lens 510 to the sixth lens 560 may be a variable focusing lens.

[0102] The first lens 510 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The second lens 520 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 530 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 540 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 550 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 550 may have a point of inflection. The sixth lens 560 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 560 may have a point of inflection.

[0103] The optical imaging system 500 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 500 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 510. The optical imaging system 500 may include a filter IF. The filter IF may be disposed between the sixth lens 560 and the imaging plane IP.

[0104] Tables 9 and 10 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 10 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0105] Table 9 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7453 0.8098 1.543 56.0 0.725 S2 53.6261 0.0238 0.772 S3 Second lens 7.9790 0.2300 1.667 19.2 0.800 S4 3.6929 0.2251 0.837 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 67.4453 0.3706 1.534 55.7 1.197 S10 -9.0930 0.1416 1.432 S11 Fifth lens 14.7817 0.4498 1.647 21.5 1.722 S12 4.2730 0.2593 2.152 S13 Sixth lens 0.9904 0.5250 1.534 55.7 2.405 S14 0.8116 0.5285 2.723 S15 Filter infinity 0.2100 S16 infinity 0.2013 S17 Imaging plane -0.0149

[0106] Table 10 Surface number S1 S2 S3 S4 S9 K -4.2279E-01 -9.9000E+01 -7.0102E+01 9.0907E+00 9.9000E+01 A -3.0686E-02 -2.4155E-01 -1.6929E-01 -1.0360E-01 7.0233E-03 B -1.7409E+00 -1.9268E+00 5.3730E-01 3.5492E+00 5.6768E-02 C 7.9169E+01 4.8169E+01 -2.2277E+01 -5.5853E+01 -1.2913E+00 D -1.5540E+03 -6.5208E+02 5.0738E+02 5.6445E+02 6.5214E+00 E 1.8138E+04 6.1662E+03 -6.1098E+03 -3.8617E+03 -2.0150E+01 F -1.3967E+05 -4.2207E+04 4.6046E+04 1.8565E+04 5.1557E+01 G 7.4487E+05 2.1086E+05 -2.3371E+05 -6.4077E+04 -1.1811E+02 H -2.8181E+06 -7.6893E+05 8.2745E+05 1.6025E+05 2.1766E+02 J 7.6242E+06 2.0350E+06 -2.0719E+06 -2.8993E+05 -2.9244E+02 L -1.4655E+07 -3.8533E+06 3.6585E+06 3.7431E+05 2.7342E+02 M 1.9547E+07 5.0762E+06 -4.4592E+06 -3.3462E+05 -1.7235E+02 N -1.7200E+07 -4.4123E+06 3.5723E+06 1.9558E+05 6.9776E+01 O 8.9786E+06 2.2725E+06 -1.6933E+06 -6.6640E+04 -1.6385E+01 P -2.1058E+06 -5.2491E+05 3.5995E+05 9.9010E+03 1.6971E+00 Surface number S10 S11 S12 S13 S14 K -8.5573E+01 6.1117E+01 -8.3877E+00 -2.5894E+00 -9.6203E-01 A 1.8934E-01 2.9297E-01 -3.1946E-01 -7.5341E-01 -8.4420E-01 B 7.2600E-01 4.3549E-01 1.8612E+00 1.4187E+00 1.1546E+00 C -7.5919E+00 -3.9280E+00 -4.5279E+00 -1.9393E+00 -1.3056E+00 D 2.7534E+01 1.0628E+01 6.5468E+00 1.8455E+00 1.0850E+00 E -6.2310E+01 -1.8069E+01 -6.3676E+00 -1.2521E+00 -6.5500E-01 F 1.0093E+02 2.1890E+01 4.3890E+00 6.0524E-01 2.8894E-01 G -1.2344E+02 -1.9626E+01 -2.2011E+00 -2.0615E-01 -9.4091E-02 H 1.1557E+02 1.3100E+01 8.1254E-01 4.8525E-02 2.2758E-02 J -8.2037E+01 -6.4496E+00 -2.2083E-01 -7.5491E-03 -4.0804E-03 L 4.3098E+01 2.2958E+00 4.3654E-02 6.8385E-04 5.3526E-04 M -1.6127E+01 -5.7144E-01 -6.1033E-03 -1.7307E-05 -4.9924E-05 N 4.0437E+00 9.3954E-02 5.7147E-04 -3.1812E-06 3.1355E-06 O -6.0674E-01 -9.1385E-03 -3.2106E-05 3.4287E-07 -1.1887E-07 P 4.1074E-02 3.9724E-04 8.1671E-07 -1.0994E-08 2.0550E-09

[0107] An optical imaging system according to a sixth exemplary embodiment will be described with reference to FIG11.

[0108] The optical imaging system 600 according to the sixth embodiment may include a plurality of lenses. For example, the optical imaging system 600 may include a first lens 610, a second lens 620, a third lens 630, a fourth lens 640, a fifth lens 650, and a sixth lens 660.

[0109] The optical imaging system 600 may include a variable focusing lens. For example, one of the first lens 610 to the sixth lens 660 may be a variable focusing lens.

[0110] The first lens 610 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 620 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 630 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface of the variable focusing lens VL (the object-side surface in this example embodiment), and the shape-changing component LQ may change the second surface of the variable focusing lens VL (the image-side surface in this example embodiment) into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 640 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 650 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 650 may have a point of inflection. The sixth lens 660 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 660 may have a point of inflection.

[0111] The optical imaging system 600 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 600 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 610. The optical imaging system 600 may include a filter IF. The filter IF may be disposed between the sixth lens 660 and the imaging plane IP.

[0112] Tables 11 and 12 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 12 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0113] Table 11 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7669 0.8000 1.543 56.0 0.725 S2 -72.0404 0.0238 0.772 S3 Second lens 10.6926 0.2300 1.657 20.4 0.800 S4 3.8053 0.2224 0.845 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.0419 0.4169 1.534 55.7 1.198 S10 -9.2670 0.1413 1.432 S11 Fifth lens 14.1090 0.4500 1.647 21.5 1.726 S12 4.1534 0.2858 2.150 S13 Sixth lens 1.0041 0.5499 1.534 55.7 2.416 S14 0.8212 0.4950 2.738 S15 Filter infinity 0.2100 S16 infinity 0.2000 S17 Imaging plane 0.0200

[0114] Table 12 Surface number S1 S2 S3 S4 S9 K -4.6168E-01 9.9000E+01 -9.9000E+01 8.6845E+00 9.9000E+01 A -1.1951E-01 -2.7965E-01 -2.4215E-01 -2.9438E-02 6.6661E-03 B 1.9707E+00 4.7911E-01 3.1987E+00 9.9716E-01 -9.7632E-02 C -5.1576E+00 -1.8487E+00 -7.4205E+01 -8.4642E+00 -2.6906E-01 D -3.6416E+02 3.1371E+01 1.1795E+03 1.5265E+01 1.9467E+00 E 6.9255E+03 -2.9391E+02 -1.2096E+04 3.8025E+02 -3.4160E+00 F -6.5844E+04 1.0084E+03 8.3589E+04 -4.1846E+03 -7.5999E-03 G 3.9593E+05 3.0177E+03 -4.0241E+05 2.2770E+04 6.1659E+00 H -1.6176E+06 -4.4446E+04 1.3758E+06 -7.8764E+04 -2.2642E+00 J 4.6117E+06 2.0531E+05 -3.3623E+06 1.8514E+05 -1.5037E+01 L -9.1983E+06 -5.4227E+05 5.8340E+06 -3.0069E+05 2.8529E+01 M 1.2599E+07 8.9444E+05 -7.0195E+06 3.3327E+05 -2.4848E+01 N -1.1300E+07 -9.1377E+05 5.5691E+06 -2.4112E+05 1.2077E+01 O 5.9803E+06 5.3090E+05 -2.6206E+06 1.0277E+05 -3.1767E+00 P -1.4162E+06 -1.3444E+05 5.5400E+05 -1.9590E+04 3.5449E-01 Surface number S10 S11 S12 S13 S14 K -5.1889E+01 6.0172E+01 -7.2268E+00 -2.5650E+00 -9.6135E-01 A 2.4732E-01 3.1989E-01 -3.1618E-01 -7.3359E-01 -8.3040E-01 B 1.0720E-01 1.5952E-01 1.7861E+00 1.4062E+00 1.1839E+00 C -4.0867E+00 -2.5729E+00 -4.2923E+00 -2.0231E+00 -1.4180E+00 D 1.4986E+01 6.7367E+00 6.2020E+00 2.0688E+00 1.2509E+00 E -3.1369E+01 -1.0543E+01 -6.0834E+00 -1.53​​85E+00 -8.0164E-01 F 4.5283E+01 1.1494E+01 4.2604E+00 8.3752E-01 3.7542E-01 G -4.8524E+01 -9.1478E+00 -2.1839E+00 -3.3497E-01 -1.2964E-01 H 3.9803E+01 5.3651E+00 8.2787E-01 9.8795E-02 3.3137E-02 J -2.5072E+01 -2.2931E+00 -2.3183E-01 -2.1462E-02 -6.2424E-03 L 1.1906E+01 6.9492E-01 4.7336E-02 3.3964E-03 8.5396E-04 M -4.1030E+00 -1.4231E-01 -6.8466E-03 -3.8128E-04 -8.2366E-05 N 9.6289E-01 1.8086E-02 6.6401E-04 2.8793E-05 5.3029E-06 O -1.3700E-01 -1.1987E-03 -3.8685E-05 -1.3123E-06 -2.0432E-07 P 8.8872E-03 2.5104E-05 1.0221E-06 2.7278E-08 3.5604E-09

[0115] The optical imaging system according to the seventh example embodiment will be described with reference to FIG13.

[0116] The optical imaging system 700 according to the seventh embodiment may include a plurality of lenses. For example, the optical imaging system 700 may include a first lens 710, a second lens 720, a third lens 730, a fourth lens 740, a fifth lens 750, and a sixth lens 760.

[0117] The optical imaging system 700 may include a variable focusing lens. For example, one of the first lens 710 to the sixth lens 760 may be a variable focusing lens.

[0118] The first lens 710 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 720 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 730 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 740 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 750 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 750 may have a point of inflection. The sixth lens 760 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 760 may have a point of inflection.

[0119] The optical imaging system 700 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 700 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 710. The optical imaging system 700 may include a filter IF. The filter IF may be disposed between the sixth lens 760 and the imaging plane IP.

[0120] Tables 13 and 14 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 14 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0121] Table 13 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7526 0.8000 1.543 56.0 0.725 S2 -46.3907 0.0238 0.772 S3 Second lens 11.6472 0.2300 1.657 20.4 0.798 S4 3.7555 0.2227 0.838 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.3964 0.3884 1.534 55.7 1.260 S10 -9.2470 0.1422 1.432 S11 Fifth lens 14.1780 0.4500 1.647 21.5 1.760 S12 4.3684 0.2809 2.180 S13 Sixth lens 1.0053 0.5370 1.534 55.7 2.460 S14 0.8126 0.5103 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2000 S17 Imaging plane 0.0047

[0122] Table 14 Surface number S1 S2 S3 S4 S9 K -4.4955E-01 -3.1007E+01 -9.9000E+01 8.9530E+00 9.9000E+01 A -6.6593E-02 -2.5123E-01 -2.3753E-01 -6.3115E-02 3.4175E-02 B -4.3861E-01 -4.8023E-01 2.9966E+00 2.0688E+00 -4.1885E-01 C 5.2571E+01 9.4595E+00 -7.4907E+01 -2.8283E+01 2.5020E+00 D -1.2057E+03 -4.1833E+00 1.2504E+03 2.4996E+02 -1.3731E+01 E 1.5000E+04 -8.6941E+02 -1.3184E+04 -1.4873E+03 5.6006E+01 F -1.1939E+05 9.3047E+03 9.2722E+04 6.1939E+03 -1.5468E+02 G 6.4871E+05 -5.1180E+04 -4.5181E+05 -1.8501E+04 2.8810E+02 H -2.4804E+06 1.7406E+05 1.5582E+06 4.0145E+04 -3.6545E+02 J 6.7480E+06 -3.8095E+05 -3.8320E+06 -6.3400E+04 3.1461E+02 L -1.2999E+07 5.2473E+05 6.6791E+06 7.2192E+04 -1.7844E+02 M 1.7335E+07 -4.0725E+05 -8.0622E+06 -5.7796E+04 6.1386E+01 N -1.5223E+07 1.0369E+05 6.4105E+06 3.0894E+04 -9.8469E+00 O 7.9199E+06 7.1847E+04 -3.0207E+06 -9.8947E+03 -3.5900E-01 P -1.8492E+06 -4.3990E+04 6.3909E+05 1.4322E+03 2.5647E-01 Surface number S10 S11 S12 S13 S14 K -5.2072E+01 5.9962E+01 -7.1919E+00 -2.5706E+00 -9.6123E-01 A 2.3200E-01 3.0403E-01 -3.0742E-01 -7.3736E-01 -8.4241E-01 B 3.4161E-01 3.4949E-01 1.7875E+00 1.3525E+00 1.1634E+00 C -5.7029E+00 -3.6233E+00 -4.3450E+00 -1.7996E+00 -1.3293E+00 D 2.1391E+01 1.0068E+01 6.3131E+00 1.6389E+00 1.1176E+00 E -4.8098E+01 -1.7472E+01 -6.2083E+00 -1.0444E+00 -6.8547E-01 F 7.6326E+01 2.1524E+01 4.3509E+00 4.6397E-01 3.0879E-01 G -9.0972E+01 -1.9545E+01 -2.2300E+00 -1.4002E-01 -1.0309E-01 H 8.3089E+01 1.3174E+01 8.4551E-01 2.6866E-02 2.5609E-02 J -5.7844E+01 -6.5413E+00 -2.3713E-01 -2.5482E-03 -4.7127E-03 L 3.0001E+01 2.3489E+00 4.8607E-02 -1.2597E-04 6.3296E-04 M -1.1154E+01 -5.9074E-01 -7.0810E-03 7.2625E-05 -6.0221E-05 N 2.7936E+00 9.8386E-02 6.9439E-04 -9.6969E-06 3.8413E-06 O -4.2042E-01 -9.7261E-03 -4.1086E-05 6.1976E-07 -1.4723E-07 P 2.8640E-02 4.3148E-04 1.1077E-06 -1.6214E-08 2.5619E-09

[0123] The optical imaging system according to the eighth embodiment will be described with reference to Figure 15.

[0124] The optical imaging system 800 according to the eighth embodiment may include a plurality of lenses. For example, the optical imaging system 800 may include a first lens 810, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, and a sixth lens 860.

[0125] The optical imaging system 800 may include a variable focusing lens. For example, one of the first lens 810 to the sixth lens 860 may be a variable focusing lens.

[0126] The first lens 810 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The second lens 820 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 830 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface of the variable focusing lens VL (the object-side surface in this example embodiment), and the shape-changing component LQ may change the second surface of the variable focusing lens VL (the image-side surface in this example embodiment) into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 840 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 850 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 850 may have a point of inflection. The sixth lens 860 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 860 may have a point of inflection.

[0127] The optical imaging system 800 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 800 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 810. The optical imaging system 800 may include a filter IF. The filter IF may be disposed between the sixth lens 860 and the imaging plane IP.

[0128] Tables 15 and 16 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 16 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0129] Table 15 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7297 0.8000 1.543 56.0 0.725 S2 -135.7814 0.0238 0.772 S3 Second lens 10.1288 0.2300 1.657 20.4 0.797 S4 3.6614 0.2275 0.836 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.7271 0.3657 1.534 55.7 1.260 S10 -9.2491 0.1400 1.432 S11 Fifth lens 14.3492 0.4500 1.647 21.5 1.760 S12 4.2353 0.2578 2.180 S13 Sixth lens 0.9869 0.5201 1.534 55.7 2.460 S14 0.8100 0.5288 2.780 S15 Filter infinity 0.2100 S16 infinity 0.2062 S17 Imaging plane -0.0200

[0130] Table 16 Surface number S1 S2 S3 S4 S9 K -4.3782E-01 9.9000E+01 -9.9000E+01 9.1955E+00 9.9000E+01 A -1.9657E-02 -2.3076E-01 -1.7874E-01 -1.1543E-01 3.0322E-02 B -2.3463E+00 -2.5501E+00 5.7308E-01 3.8999E+00 -3.0846E-01 C 9.4107E+01 6.2305E+01 -2.4623E+01 -6.1802E+01 2.1044E+00 D -1.7621E+03 -8.1317E+02 5.8823E+02 6.3162E+02 -1.3280E+01 E 1.9934E+04 7.2304E+03 -7.3171E+03 -4.3844E+03 5.6951E+01 F -1.4964E+05 -4.6230E+04 5.6487E+04 2.1488E+04 -1.5810E+02 G 7.8029E+05 2.1697E+05 -2.9226E+05 -7.6110E+04 2.9094E+02 H -2.8912E+06 -7.5176E+05 1.0515E+06 1.9701E+05 -3.6249E+02 J 7.6686E+06 1.9136E+06 -2.6696E+06 -3.7283E+05 3.0639E+02 L -1.4462E+07 -3.5235E+06 4.7719E+06 5.0990E+05 -1.7145E+02 M 1.8933E+07 4.5542E+06 -5.8807E+06 -4.9045E+05 5.9173E+01 N -1.6357E+07 -3.9106E+06 4.7588E+06 3.1450E+05 -1.0263E+01 O 8.3845E+06 1.9998E+06 -2.2768E+06 -1.2061E+05 1.1137E-01 P -1.9311E+06 -4.6024E+05 4.8822E+05 2.0908E+04 1.6443E-01 Surface number S10 S11 S12 S13 S14 K -9.6433E+01 6.0358E+01 -8.0517E+00 -2.5763E+00 -9.6132E-01 A 1.9732E-01 2.9341E-01 -3.1146E-01 -7.4702E-01 -8.3995E-01 B 6.7725E-01 4.8772E-01 1.8438E+00 1.3979E+00 1.1334E+00 C -7.1254E+00 -4.2429E+00 -4.5184E+00 -1.8939E+00 -1.2618E+00 D 2.4931E+01 1.1617E+01 6.5693E+00 1.7700E+00 1.0308E+00 E -5.3766E+01 -2.0113E+01 -6.4281E+00 -1.1669E+00 -6.1158E-01 F 8.2624E+01 2.4853E+01 4.4649E+00 5.4126E-01 2.6520E-01 G -9.6281E+01 -2.2710E+01 -2.2617E+00 -1.7349E-01 -8.4911E-02 H 8.6879E+01 1.5430E+01 8.4570E-01 3.6912E-02 2.0198E-02 J -6.0273E+01 -7.7282E+00 -2.3353E-01 -4.6384E-03 -3.5626E-03 L 3.1312E+01 2.7992E+00 4.7066E-02 1.7054E-04 4.6000E-04 M -1.1681E+01 -7.0998E-01 -6.7326E-03 4.5119E-05 -4.2270E-05 N 2.9332E+00 1.1921E-01 6.4750E-04 -8.1709E-06 2.6189E-06 O -4.4173E-01 -1.1878E-02 -3.7528E-05 5.7897E-07 -9.8122E-08 P 3.0034E-02 5.3091E-04 9.8987E-07 -1.6007E-08 1.6801E-09

[0131] The optical imaging system according to the ninth example embodiment will be described with reference to FIG17.

[0132] The optical imaging system 900 according to the ninth embodiment may include a plurality of lenses. For example, the optical imaging system 900 may include a first lens 910, a second lens 920, a third lens 930, a fourth lens 940, a fifth lens 950, and a sixth lens 960.

[0133] The optical imaging system 900 may include a variable focusing lens. For example, one of the first lens 910 to the sixth lens 960 may be a variable focusing lens.

[0134] The first lens 910 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The second lens 920 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 930 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (the object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (the image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 940 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 950 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 950 may have a point of inflection. The sixth lens 960 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 960 may have a point of inflection.

[0135] The optical imaging system 900 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 900 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 910. The optical imaging system 900 may include a filter IF. The filter IF may be disposed between the sixth lens 960 and the imaging plane IP.

[0136] Tables 17 and 18 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 18 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0137] Table 17 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.7146 0.8000 1.543 56.0 0.725 S2 895.3855 0.0238 0.772 S3 Second lens 9.3151 0.2300 1.657 20.4 0.797 S4 3.6048 0.2294 0.834 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.2654 0.3636 1.534 55.7 1.204 S10 -9.2625 0.1400 1.432 S11 Fifth lens 14.3082 0.4374 1.647 21.5 1.722 S12 4.1496 0.2575 2.142 S13 Sixth lens 0.9826 0.5133 1.534 55.7 2.411 S14 0.8094 0.5288 2.727 S15 Filter infinity 0.2100 S16 infinity 0.2062 S17 Imaging plane -0.0200

[0138] Table 18 Surface number S1 S2 S3 S4 S9 K -4.3151E-01 -9.9000E+01 -9.3212E+01 9.2040E+00 9.9000E+01 A -2.5434E-02 -3.0657E-01 -2.3111E-01 -1.2018E-01 1.7540E-02 B -2.0056E+00 3.5241E-01 2.6608E+00 4.1952E+00 -7.6591E-02 C 8.5850E+01 2.7770E+00 -6.7544E+01 -6.8828E+01 -2.4685E-01 D -1.6501E+03 -6.3057E+01 1.1451E+03 7.2949E+02 1.7138E+00 E 1.8985E+04 1.0214E+03 -1.2184E+04 -5.2674E+03 -6.5745E+00 F -1.4439E+05 -1.1045E+04 8.6293E+04 2.6918E+04 2.8052E+01 G 7.6124E+05 7.6953E+04 -4.2345E+05 -9.9564E+04 -9.6501E+01 H -2.8491E+06 -3.5551E+05 1.4718E+06 2.6928E+05 2.1826E+02 J 7.6297E+06 1.1158E+06 -3.6508E+06 -5.3228E+05 -3.2204E+02 L -1.4526E+07 -2.3960E+06 6.4231E+06 7.5981E+05 3.1473E+02 M 1.9202E+07 3.4700E+06 -7.8306E+06 -7.6192E+05 -2.0294E+02 N -1.6754E+07 -3.2439E+06 6.2910E+06 5.0879E+05 8.3244E+01 O 8.6767E+06 1.7686E+06 -2.9958E+06 -2.0300E+05 -1.9722E+01 P -2.0199E+06 -4.2734E+05 6.4060E+05 3.6586E+04 2.0578E+00 Surface number S10 S11 S12 S13 S14 K -9.8944E+01 6.0361E+01 -8.2267E+00 -2.5540E+00 -9.6139E-01 A 1.9353E-01 3.1008E-01 -3.1147E-01 -7.7863E-01 -8.6577E-01 B 7.7656E-01 3.5802E-01 1.8781E+00 1.5673E+00 1.2468E+00 C -8.1304E+00 -3.6166E+00 -4.6699E+00 -2.4162E+00 -1.5251E+00 D 3.0306E+01 9.6399E+00 6.9120E+00 2.7363E+00 1.3905E+00 E -7.1273E+01 -1.5873E+01 -6.9292E+00 -2.3066E+00 -9.2713E-01 F 1.2037E+02 1.8456E+01 4.9682E+00 1.4399E+00 4.5311E-01 G -1.5272E+02 -1.5783E+01 -2.6175E+00 -6.6322E-01 -1.6343E-01 H 1.4678E+02 1.0008E+01 1.0251E+00 2.2516E-01 4.3624E-02 J -1.0578E+02 -4.6654E+00 -2.9827E-01 -5.6069E-02 -8.5761E-03 L 5.5913E+01 1.5670E+00 6.3657E-02 1.0100E-02 1.2231E-03 M -2.0925E+01 -3.6630E-01 -9.6809E-03 -1.2792E-03 -1.2285E-04 N 5.2307E+00 5.6176E-02 9.9279E-04 1.0793E-04 8.2266E-06 O -7.8148E-01 -5.0477E-03 -6.1489E-05 -5.4418E-06 -3.2926E-07 P 5.2683E-02 1.9998E-04 1.7360E-06 1.2395E-07 5.9530E-09

[0139] The optical imaging system according to the tenth example embodiment will be described with reference to FIG19.

[0140] The optical imaging system 1000 according to the tenth embodiment may include a plurality of lenses. For example, the optical imaging system 1000 may include a first lens 1010, a second lens 1020, a third lens 1030, a fourth lens 1040, a fifth lens 1050, and a sixth lens 1060.

[0141] The optical imaging system 1000 may include a variable focusing lens. For example, one of the first lens 1010 to the sixth lens 1060 may be a variable focusing lens.

[0142] The first lens 1010 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The second lens 1020 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The third lens 1030 may be configured as a variable focusing lens VL. The variable focusing lens VL may include a cover glass CG and a shape-changing component LQ. The cover glass CG may constantly maintain the shape of the first surface (object-side surface in this example embodiment) of the variable focusing lens VL, and the shape-changing component LQ may change the second surface (image-side surface in this example embodiment) of the variable focusing lens VL into a convex or concave shape. Therefore, depending on the shape of the shape-changing component LQ, the variable focusing lens VL may have positive or negative refractive power. In addition, the shape-changing component LQ may change the focal length of the variable focusing lens VL by changing the radius of curvature of the variable focusing lens VL. For example, the shape-changing component LQ can change the focal length of the variable-focusing lens VL by increasing or decreasing the radius of curvature of the second surface of the variable-focusing lens VL. The fourth lens 1040 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may also be convex. The fifth lens 1050 may have negative refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The fifth lens 1050 may have a point of inflection. The sixth lens 1060 may have positive refractive power, and its object-side surface may be convex, while its image-side surface may be concave. The sixth lens 1060 may have a point of inflection.

[0143] The optical imaging system 1000 may include an imaging plane IP. In this example embodiment, the imaging plane IP may be formed on the surface of the image sensor IS. The optical imaging system 1000 may include an aperture ST. For example, the aperture ST may be disposed on the object-side surface of the first lens 1010. The optical imaging system 1000 may include a filter IF. The filter IF may be disposed between the sixth lens 1060 and the imaging plane IP.

[0144] Tables 19 and 20 respectively show the characteristics and aspherical coefficients of the lens of the optical imaging system according to the present example embodiment, and Figure 20 presents a graph with curves representing the aberration characteristics of the optical imaging system according to the present example embodiment.

[0145] Table 19 Surface number Components radius of curvature thickness / distance Refractive index Abbe number Effective radius S1 First lens 1.6992 0.8000 1.543 56.0 0.725 S2 119.6704 0.0238 0.772 S3 Second lens 8.7145 0.2300 1.657 20.4 0.797 S4 3.5443 0.2317 0.833 S5 Third lens infinity 0.1000 1.516 64.2 1.100 S6 infinity 0.2800 1.548 30.0 1.100 S7 infinity 0.0200 1.529 65.4 1.100 S8 infinity 0.2000 1.100 S9 Fourth lens 57.1728 0.3594 1.534 55.7 1.204 S10 -9.2674 0.1400 1.432 S11 Fifth lens 14.2907 0.4297 1.647 21.5 1.722 S12 4.1342 0.2551 2.142 S13 Sixth lens 0.9806 0.5053 1.534 55.7 2.411 S14 0.8068 0.5288 2.727 S15 Filter infinity 0.2100 S16 infinity 0.2062 S17 Imaging plane -0.0200

[0146] Table 20 Surface number S1 S2 S3 S4 S9 K -4.2633E-01 -9.9000E+01 -9.1381E+01 9.2176E+00 9.9000E+01 A -3.6745E-02 -3.0778E-01 -2.2035E-01 -1.1016E-01 3.0790E-02 B -1.5228E+00 -3.8680E-01 1.9114E+00 4.1226E+00 -3.5019E-01 C 7.6228E+01 2.7951E+01 -4.8364E+01 -7.1118E+01 2.9534E+00 D -1.5345E+03 -5.0822E+02 8.6952E+02 7.9246E+02 -2.0387E+01 E 1.8062E+04 5.9808E+03 -9.6208E+03 -6.0137E+03 9.1947E+01 F -1.3927E+05 -4.8330E+04 6.9947E+04 3.2279E+04 -2.7117E+02 G 7.4120E+05 2.7284E+05 -3.4980E+05 -1.2529E+05 5.4277E+02 H -2.7939E+06 -1.0881E+06 1.2337E+06 3.5526E+05 -7.5885E+02 J 7.5262E+06 3.0770E+06 -3.0968E+06 -7.3535E+05 7.5104E+02 L -1.4403E+07 -6.1248E+06 5.5026E+06 1.0979E+06 -5.2481E+02 M 1.9129E+07 8.3853E+06 -6.7651E+06 -1.1503E+06 2.5346E+02 N -1.6764E+07 -7.5128E+06 5.4748E+06 8.0176E+05 -8.0528E+01 O 8.7181E+06 3.9647E+06 -2.6240E+06 -3.3366E+05 1.5142E+01 P -2.0377E+06 -9.3416E+05 5.6434E+05 6.2696E+04 -1.2762E+00 Surface number S10 S11 S12 S13 S14 K -9.9000E+01 6.0483E+01 -7.7735E+00 -2.5181E+00 -9.6110E-01 A 1.8823E-01 3.0572E-01 -3.1859E-01 -8.0995E-01 -8.8791E-01 B 8.2100E-01 4.7390E-01 2.0074E+00 1.6979E+00 1.3117E+00 C -7.9680E+00 -4.2003E+00 -5.1940E+00 -2.7527E+00 -1.6501E+00 D 2.7438E+01 1.1115E+01 8.0246E+00 3.2904E+00 1.5445E+00 E -5.7448E+01 -1.8190E+01 -8.4315E+00 -2.9105E+00 -1.0522E+00 F 8.3396E+01 2.0916E+01 6.3581E+00 1.8880E+00 5.2195E-01 G -8.9114E+01 -1.7638E+01 -3.5309E+00 -8.9477E-01 -1.8965E-01 H 7.2201E+01 1.1034E+01 1.4587E+00 3.0975E-01 5.0587E-02 J -4.4757E+01 -5.0953E+00 -4.4748E-01 -7.8024E-02 -9.8567E-03 L 2.1014E+01 1.7053E+00 1.0052E-01 1.4120E-02 1.3820E-03 M -7.2424E+00 -4.0006E-01 -1.6052E-02 -1.7863E-03 -1.3539E-04 N 1.7247E+00 6.2053E-02 1.7232E-03 1.4983E-04 8.7741E-06 O -2.5255E-01 -5.6879E-03 -1.1136E-04 -7.4811E-06 -3.3724E-07 P 1.7062E-02 2.3223E-04 3.2689E-06 1.6823E-07 5.8099E-09

[0147] Tables 21 and 22 respectively represent the optical characteristic values ​​and the values ​​of the conditional expressions of the optical imaging systems according to the first embodiment to the tenth embodiment.

[0148] Table 21 Remark First Example Implementation Second Example Implementation Third Example Implementation Fourth Example Implementation Fifth Example Implementation f1 3.0776 3.1087 3.1498 3.2778 3.2871 f2 -8.1108 -8.3693 -8.7320 -10.2143 -10.3803 f3(fv) -500~50 -500~50 -500~50 -500~50 -500~50 f4 14.9004 14.8820 14.9065 14.9681 14.9577 f5 -10.2800 -9.5550 -9.5691 -9.5164 -9.3241 f6 -128.7626 431.9236 418.6342 1331.4658 331.6131 TTL 4.5600 4.5600 4.5600 4.5600 4.5600 f 3.6070 3.6070 3.6070 3.6070 3.6070 ImgH 3.2840 3.2840 3.2840 3.2840 3.2840 FOV 82.9528 82.9776 82.9720 82.9755 83.0550 L1S1E 1.4500 1.4500 1.4500 1.4500 1.4500 L3S1E 1.1000 1.1000 1.1000 1.1000 1.1000 Remarks Sixth Example Implementation Seventh Example Implementation Eighth Example Implementation Ninth Example Implementation Tenth Example Implementation f1 3.1720 3.1125 3.1357 3.1465 3.1506 f2 -8.9835 -8.4140 -8.7274 -8.9671 -9.1255 f3(fv) -500~50 -500~50 -500~50 -500~50 -500~50 f4 14.8889 14.8717 14.8845 14.8865 14.8896 f5 -9.1402 -9.8067 -9.3279 -9.0678 -9.0222 f6 167.8589 -295.3601 316.2784 246.4371 569.8565 TTL 4.6450 4.6000 4.5400 4.5200 4.5000 f 3.6070 3.6070 3.6070 3.6070 3.6070 ImgH 3.2840 3.2840 3.2840 3.2840 3.2840 FOV 82.7264 82.7280 83.0455 83.1804 83.2476 L1S1E 1.4500 1.4500 1.4500 1.4500 1.4500 L3S1ER 1.1000 1.1000 1.1000 1.1000 1.1000

[0149] Table 22 conditional expression First Example Implementation Second Example Implementation Third Example Implementation Fourth Example Implementation Fifth Example Implementation SD / TD 0.9594 0.9594 0.9593 0.9593 0.9592 T1 / TTL 0.1754 0.1754 0.1754 0.1787 0.1776 V1-V2 35.6130 35.6130 36.7520 36.7520 36.7520 LD / TD 0.6486 0.6484 0.6491 0.6437 0.6455 L1S1E / T1 1.8125 1.8125 1.8125 1.7791 1.7905 D12 / f 0.0066 0.0066 0.0066 0.0066 0.0066 |f1 / f6| 0.0239 0.0072 0.0075 0.0025 0.0099 L1S1E / T1 1.8125 1.8125 1.8125 1.7791 1.7905 D12 / f 0.0066 0.0066 0.0066 0.0066 0.0066 f2 / f4 -0.5443 -0.5624 -0.5858 -0.6824 -0.6940 f2 / f5 0.7890 0.8759 0.9125 1.0733 1.1133 (R1+R2) / (R1-R2) -0.9100 -0.9332 -0.9665 -1.0584 -1.0673 R1 / (R9+R10) 0.0934 0.0941 0.0936 0.0919 0.0916 R1 / (R11+R12) 0.9611 0.9659 0.9653 0.9691 0.9685 (R9+R10) / (R11+R12) 10.2947 10.2680 10.3142 10.5473 10.5744 R1 / R11 1.7350 1.7547 1.7534 1.7602 1.7622 conditional expression Sixth Example Implementation Seventh Example Implementation Eighth Example Implementation Ninth Example Implementation Tenth Example Implementation SD / TD 0.9609 0.9600 0.9587 0.9581 0.9574 T1 / TTL 0.1722 0.1739 0.1762 0.1770 0.1778 V1-V2 35.6130 35.6130 35.6130 35.6130 35.6130 LD / TD 0.6569 0.6527 0.6455 0.6431 0.6404 L1S1E / T1 1.8125 1.8125 1.8125 1.8125 1.8125 D12 / f 0.0066 0.0066 0.0066 0.0066 0.0066 |f1 / f6| 0.0189 0.0105 0.0099 0.0128 0.0055 L1S1E / T1 1.8125 1.8125 1.8125 1.8125 1.8125 D12 / f 0.0066 0.0066 0.0066 0.0066 0.0066 f2 / f4 -0.6034 -0.5658 -0.5863 -0.6024 -0.6129 f2 / f5 0.9829 0.8580 0.9356 0.9889 1.0114 (R1+R2) / (R1-R2) -0.9521 -0.9272 -0.9748 -1.0038 -1.0288 R1 / (R9+R10) 0.0967 0.0945 0.0931 0.0929 0.0922 R1 / (R11+R12) 0.9680 0.9641 0.9625 0.9568 0.9506 (R9+R10) / (R11+R12) 10.0055 10.2019 10.3421 10.3001 10.3082 R1 / R11 1.7597 1.7433 1.7525 1.7449 1.7327

[0150] Next, the configuration of the variable focusing lens will be described with reference to Figure 21.

[0151] A variable focusing lens VL can be configured to have a predetermined refractive power. For example, the variable focusing lens VL can have positive refractive power. One surface of the variable focusing lens VL can be convex. For example, as shown in Figure 21, the image-side portions Sq4 and Sq5 of the variable focusing lens VL can be convex. One surface of the variable focusing lens VL can be flat. For example, as shown in Figure 21, the object-side surface Sq3 of the variable focusing lens VL can be flat. However, one surface of the variable focusing lens VL does not necessarily have to be flat. The radius of curvature of the convex surface or the image-side portions Sq4 and Sq5 of the variable focusing lens VL can be adjustable. For example, the volume or shape of the variable focusing lens VL can be changed by externally supplied energy to change the radius of curvature of the image-side portions Sq4 and Sq5. A cover glass CG can be mounted on one surface of the variable focusing lens VL. The cover glass CG can be positioned in close contact with one surface of the variable focusing lens VL to keep that surface of the variable focusing lens VL always flat (the radius of curvature of one surface of the variable focusing lens VL is close to infinity). Specifically, the radii of curvature of the first surface Sq1 and the second surface Sq2 of the cover glass CG can be approximately close to infinity.

[0152] A variable focusing lens (VL) may comprise multiple components. For example, a variable focusing lens (VL) may comprise a first component (LQ1) and a second component (LQ2). The first component (LQ1) may be configured to surround the surface of the second component (LQ2). For example, the first component (LQ1) may be configured to cover the object-side surface and the image-side surface of the second component (LQ2). The first component (LQ1) and the second component (LQ2) may be configured to have different refractive indices and Abbe numbers. For example, the refractive index of the second component (LQ2) may be greater than that of the first component (LQ1), and the Abbe number of the second component (LQ2) may be less than that of the first component (LQ1). The second component (LQ2) may be made of a readily deformable material. For example, the second component (LQ2) may be deformable to have the same or similar size as the first component (LQ1). Specifically, the image-side surface (Sq4) and the image-side surface (Sq5) of the second component (LQ2) may be deformable to have the same radius of curvature as the image-side surface (Sq4) of the first component (LQ1).

[0153] Next, a camera module comprising an optical imaging system according to an example embodiment will be described with reference to FIG22.

[0154] The camera module 10 according to an example embodiment may include a camera barrel 20 and an optical imaging system. The optical imaging system may be any of the optical imaging systems 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 described above. The camera module 10 may include components for supplying energy to a variable focusing lens VL. For example, the camera module 10 may include a device 30 for supplying current to the variable focusing lens VL. The device 30 may be configured to supply energy directly or indirectly to the variable focusing lens VL. As an example, the device 30 may be configured to directly generate thermal or vibrational energy. As another example, the device 30 may be in the form of a connection terminal configured to transfer external energy to the variable focusing lens VL. The device 30 can be configured to be placed outside the barrel 20 or in the space between the barrel 20 and any one of the optical imaging systems 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000.

[0155] The camera module 10 can be configured to enable autofocus (AF). For example, the camera module 10 can perform autofocus by supplying energy to a variable focusing lens VL included in any of the optical imaging systems 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000. Therefore, in the camera module 10 according to this embodiment, the drive device for driving any of the optical imaging systems 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 in the optical axis direction can be omitted, and the focal length can be adjusted precisely via the variable focusing lens VL.

[0156] The optical imaging system of the present invention, according to an example embodiment, can adjust the focal length to enable miniaturization and weight reduction of the camera module.

[0157] Furthermore, since the camera module of the optical imaging system including the example embodiments of the present invention can automatically focus by changing the shape of the variable focusing lens, the focus of the camera module can be quickly adjusted, and the drive current required for the automatic focusing of the camera module can be reduced.

[0158] Although specific examples have been illustrated and described above, it will be apparent upon understanding the invention that various changes in form and detail may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only and not for limiting purposes. The description of features or manner in each example should be regarded as applicable to similar features or manner in other examples. Suitable results may be achieved if the described techniques are performed in a different order and / or if the components in the described system, architecture, apparatus, or circuit are combined in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of the invention is not defined by the embodiments but by the claims and their equivalents, and all variations falling within the scope of the claims and their equivalents should be interpreted as included in the invention.

[0159] 10: Camera Module 20: barrel 30: Device 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000: Optical Imaging System 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010: First lens 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020: Second lens 130, 230, 330, 430, 530, 630, 730, 830, 930, 1030: Third lens 140, 240, 340, 440, 540, 640, 740, 840, 940, 1040: Fourth lens 150, 250, 350, 450, 550, 650, 750, 850, 950, 1050: Fifth Lens 160, 260, 360, 460, 560, 660, 760, 860, 960, 1060: Sixth Lens CG: Cover Glass IF: Filter IP: Imaging Plane IS: Image Sensor LQ: Shape-changing component LQ1: First component LQ2: Second component Sq1: First surface Sq2: Second surface Sq3: Side surface of the object Sq4, Sq5: Image side portion ST: Aperture VL: Variable focusing lens

Claims

1. An optical imaging system, comprising: A first lens, having positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having positive refractive power are arranged sequentially from the object side toward the imaging plane. The object-side surface of the sixth lens is convex. One of the first to the sixth lenses is a variable focusing lens configured to have a variable focal length. 0.07 < T1 / TTL < 0.20, where T1 is the thickness of the first lens and TTL is the distance from the object-side surface of the first lens to the imaging plane. 25 < V1 - V2 < 45, where V1 is the Abbe number of the first lens and V2 is the Abbe number of the second lens.

2. The optical imaging system as claimed in claim 1, wherein the image-side surface of the first lens is convex.

3. The optical imaging system as claimed in claim 1, wherein the image-side surface of the second lens is concave.

4. The optical imaging system as claimed in claim 1, wherein the third lens is configured as the variable focusing lens.

5. The optical imaging system as claimed in claim 1, wherein the image-side surface of the fourth lens is convex.

6. The optical imaging system as claimed in claim 1, wherein the object-side surface of the fifth lens is convex.

7. The optical imaging system of claim 1, wherein the image-side surface of the sixth lens is concave.

8. The optical imaging system as claimed in claim 1, further comprising: An aperture stop is disposed on the object-side surface of the first lens, wherein 0.8 < SD / TD, where SD is the distance from the aperture stop to the image-side surface of the sixth lens, and TD is the distance from the object-side surface of the first lens to the image-side surface of the sixth lens.

9. The optical imaging system of claim 1, wherein 0.5 < LD / TD, where LD is the distance from the object-side surface of the variable focusing lens to the image-side surface of the sixth lens, and TD is the distance from the object-side surface of the first lens to the image-side surface of the sixth lens.

10. The optical imaging system as claimed in claim 1, wherein -500 mm < fv < 50.0 mm, and fv is the focal length of the variable focusing lens.

11. The optical imaging system of claim 1, wherein L1S1E / T1 < 2.0, where L1S1E is the effective diameter of the object-side surface of the first lens, and T1 is the thickness of the first lens.

12. The optical imaging system of claim 1, wherein D12 / f < 0.2, where D12 is the distance from the image-side surface of the first lens to the object-side surface of the second lens, and f is the focal length of the optical imaging system.

13. The optical imaging system as claimed in claim 1, wherein L3S1ER < 1.5 mm, and L3S1ER is the effective radius of the object-side surface of the third lens.

14. An electronic device comprising: A camera module, including an optical imaging system as claimed in claim 1, wherein the optical imaging system further includes an image sensor having a surface on which the imaging plane is formed.

15. An optical imaging system, comprising: The first lens has positive refractive power; The second lens has refractive power; The third lens has refractive power; The fourth lens has a convex object side surface and a convex image side surface; A fifth lens has a convex object-side surface; and a sixth lens has positive refractive power, wherein the first lens to the sixth lens are arranged sequentially from the object-side surface, wherein 0.001 < |f1 / f6| < 0.026, where f1 is the focal length of the first lens and f6 is the focal length of the sixth lens, and wherein 0.07 < T1 / TTL < 0.20, where T1 is the thickness of the first lens and TTL is the distance from the object-side surface of the first lens to the imaging plane, and wherein 25 < V1 - V2 < 45, where V1 is the Abbe number of the first lens and V2 is the Abbe number of the second lens.

16. An electronic device comprising: A camera module including an optical imaging system as described in claim 15, wherein the optical imaging system further includes an image sensor having a surface on which an imaging plane of the optical imaging system is formed.

17. An optical imaging system, comprising: A first lens, having positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having positive refractive power are arranged sequentially from the object side toward the imaging plane. The third lens is a variable focusing lens configured to have a variable focal length, wherein 0.07 < T1 / TTL < 0.20, where T1 is the thickness of the first lens, TTL is the distance from the object-side surface of the first lens to the imaging plane, and 25 < V1 - V2 < 45, where V1 is the Abbe number of the first lens and V2 is the Abbe number of the second lens.

18. An electronic device comprising: A camera module, including an optical imaging system as described in claim 17, wherein the optical imaging system further includes an image sensor having a surface on which the imaging plane is formed.

Images