Optical lens, imaging module and electronic device

Abstract

The present invention discloses an optical lens, an imaging module, and an electronic device. The optical lens sequentially includes, from the object side to the image side along the optical axis: a prism having a reflecting surface; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a refractive power; a fourth lens having a refractive power; wherein the optical lens satisfies the following conditional formula: -4.5 < f12 / f234 < -2; f12 is the combined effective focal length of the first lens and the second lens, and f234 is the combined effective focal length of the second lens, the third lens, and the fourth lens. By effectively utilizing space, the axial length of the optical lens is shortened, the telephoto characteristic is achieved, and the occupied space of the optical lens is saved.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging technology, and in particular to an optical lens, an imaging module and an electronic device. Background Art

[0002] With the popularization of portable electronic devices (such as smartphones and cameras) and the popularity of social, video and live broadcast software, people are becoming more and more fond of photography. Camera lenses have become standard for portable electronic devices, and the performance of camera lenses has even become the primary consideration for consumers when purchasing portable electronic devices.

[0003] In the process of implementing the present application, the inventors found that there are at least the following problems in the prior art: in order to obtain the telephoto characteristics of the camera lens, the total length of the camera lens needs to be increased, resulting in an increase in the lateral distance of the camera lens, which does not meet the demand for lightweight electronic devices. Summary of the invention

[0004] In view of the above, it is necessary to propose an optical lens, an imaging module and an electronic device to solve the above problems.

[0005] An embodiment of the present application provides an optical lens, which includes, from the object side to the image side along the optical axis:

[0006] From the object side to the image side, it includes:

[0007] A prism having a reflecting surface;

[0008] a first lens having positive refractive power;

[0009] a second lens element having negative refractive power;

[0010] a third lens having refractive power;

[0011] a fourth lens having a refractive power;

[0012] The optical lens satisfies the following condition:

[0013] -4.5 <f12 / f234<-2;

[0014] f12 is the combined effective focal length of the first lens and the second lens, and f234 is the combined effective focal length of the second lens, the third lens and the fourth lens.

[0015] In this way, the ratio of the combined effective focal length of the first lens and the second lens to the combined effective focal length of the first lens and the second lens, the third lens and the fourth lens is reasonably configured, which helps to avoid the first two lenses from generating large spherical aberrations, and reasonably sets the effective focal lengths of each lens group, which shortens the total length of the optical lens, realizes the telephoto characteristic, improves the aberration correction capability, and enables the optical lens to obtain better imaging quality. The light is deflected by a right-angle prism, so that the optical lens has a periscope structure, thereby effectively utilizing space, shortening the axial length of the optical lens, realizing the telephoto characteristic, and saving the space occupied by the optical lens.

[0016] In some embodiments, the optical lens satisfies the following conditional formula:

[0017] 3.3° / mm <CRA1 / (2*SD42)<6.3° / mm;

[0018] Wherein, CRA1 is the incident angle of the chief ray of 1.0 field of view on the imaging plane of the optical lens, and SD42 is the maximum effective semi-aperture of the image side surface of the fourth lens.

[0019] When the above relationship is met, a reasonable setting of the ratio of the incident angle of the main light of 1.0 field of view on the imaging plane of the optical lens to the maximum effective semi-aperture of the image side of the fourth lens L4 is conducive to better matching the optical lens with the chip, and a reasonable configuration of the maximum effective semi-aperture of the image side of the fourth lens helps the edge field of view light to transition to the image plane with a larger illumination, thereby improving the imaging quality of the optical lens.

[0020] In some embodiments, the optical lens satisfies the following conditional formula:

[0021] 0.5 <ET3 / (|SAG31|+|SAG32|)<6;

[0022] Among them, ET3 is the edge thickness value of the third lens, SAG31 is the on-axis distance from the intersection of the object side surface of the third lens and the optical axis to the maximum effective radius of the object side surface of the third lens, and SAG32 is the on-axis distance from the intersection of the image side surface of the third lens and the optical axis to the maximum effective radius of the image side surface of the third lens.

[0023] When the above relationship is satisfied, reasonably controlling the ratio of the third lens and the absolute value of the sag heights on the object side surface and the image side surface of the third lens is beneficial to reducing the total length of the system, improving the processability of the third lens, and reducing molding sensitivity.

[0024] In some embodiments, the optical lens satisfies the following conditional formula:

[0025] SDmax / SDmin<1.45;

[0026] Wherein, SDmax is the maximum value of the maximum effective half-aperture of each object-side surface or image-side surface of the first lens, the second lens, the third lens and the fourth lens, and SDmin is the minimum value of the maximum effective half-aperture of each object-side surface or image-side surface of the first lens, the second lens, the third lens and the fourth lens.

[0027] When the above relationship is met, the ratio of the maximum value to the minimum value of the maximum effective semi-aperture of the first lens, the second lens, the third lens and the fourth lens is reasonably configured to avoid excessive difference in the apertures of the first lens, the second lens, the third lens and the fourth lens of the optical lens, thereby increasing the molding sensitivity of the optical lens and reducing the stability.

[0028] In some embodiments, the optical lens satisfies the following conditional formula:

[0029] 0.5 <R22 / (CT2+AT23)<3.5;

[0030] Wherein, R22 is the curvature radius of the image side surface of the second lens at the optical axis, CT2 is the thickness of the second lens on the optical axis, and AT23 is the air gap between the second lens and the third lens on the optical axis.

[0031] When the above relationship is met, a reasonable configuration of the ratio of the radius of curvature of the image side surface of the second lens to the sum of the thickness of the second lens and the distance to the next lens is beneficial to shortening the total length of the optical lens.

[0032] In some embodiments, the optical lens satisfies the following conditional formula:

[0033] 0.5mm -1 <f1 / (R11*CT1)<2.5mm -1 ;

[0034] Wherein, f1 is the effective focal length of the first lens, R11 is the curvature radius of the object side surface of the first lens, and CT1 is the thickness of the first lens on the optical axis.

[0035] When the above relationship is met, the relationship between the effective focal length of the first lens and the curvature radius and thickness of the object side of the first lens is reasonably set, which is beneficial to reducing the pressure of balancing the spherical aberration of the subsequent lens group and improving the resolution; in addition, the reasonable setting of the curvature radius and thickness can also help reduce the molding sensitivity of the optical lens, reduce molding difficulties, and reduce processing costs.

[0036] In some embodiments, the optical lens satisfies the following conditional formula:

[0037] 1mm -1 <FNO / SD11<3mm -1 ;

[0038] Wherein, FNO is the aperture number of the optical lens, and SD11 is the maximum effective semi-aperture of the object side of the first lens.

[0039] When the above relationship is satisfied, a reasonable configuration of the ratio of the aperture number of the optical lens to the maximum effective semi-aperture of the object side of the first lens is conducive to obtaining sufficient light transmission in a dark environment, reducing the size of the Airy spot, and improving the shooting effect in a dark environment such as cloudy and rainy days. In addition, a reasonable setting of the value of the maximum effective semi-aperture of the object side of the first lens helps sufficient light to smoothly enter the optical lens and reach the imaging surface, and can also avoid dark corners at the four corners of the electronic photosensitive element.

[0040] In some embodiments, the optical lens satisfies the following conditional formula:

[0041] 0.65 <SD42 / ImgH<0.95;

[0042] Wherein, SD42 is the maximum effective semi-aperture of the image side surface of the fourth lens, and ImgH is half of the diagonal length of the effective photosensitive area of ​​the imaging surface.

[0043] When the above relationship is met, a reasonable configuration of the ratio of the maximum effective semi-aperture and the half-image height of the image side of the fourth lens is beneficial to controlling the chief ray angle of the edge field of view within a reasonable range, and can make the chief ray angle of the inner field of view better match the chip; in addition, it is also beneficial to reduce the overall size of the optical lens, save materials in the manufacturing process, and save space for the equipment equipped with the lens.

[0044] The embodiment of the present application further provides an imaging module, including:

[0045] The above-mentioned optical lens; and

[0046] A photosensitive element is arranged on the image side of the optical lens.

[0047] The optical lens in the imaging module of the embodiment of the present invention helps to avoid large spherical aberrations in the first two lenses through the reasonable design of the effective focal lengths of the four lenses as mentioned above. Reasonable setting of the effective focal lengths of each lens group can shorten the overall length of the optical lens, realize the telephoto characteristic, improve the aberration correction capability, and enable the optical lens to obtain better imaging quality.

[0048] The present application also provides an electronic device, including:

[0049] housing; and

[0050] The above-mentioned imaging module is installed on the shell.

[0051] The optical lens in the electronic device of the embodiment of the present invention helps to avoid the first two lenses from generating large spherical aberration by reasonably configuring the ratio of the combined effective focal length of the first lens and the second lens to the combined effective focal length of the first lens and the second lens, the third lens and the fourth lens. The effective focal length of each lens group is reasonably set, which can shorten the total length of the optical lens, realize the telephoto characteristic, improve the aberration correction capability, and enable the optical lens to obtain better imaging quality. The light is deflected by a right-angle prism, so that the optical lens has a periscope structure, thereby effectively utilizing space, shortening the lateral thickness of the optical lens, realizing the telephoto characteristic, and saving the space occupied by the optical lens.

[0052] Additional aspects and advantages of the embodiments of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The above technical contents and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0054] Figure 1 Schematic diagram of the structure of the optical lens of the first embodiment of the present invention.

[0055] Figure 2 Schematic diagram of spherical aberration, astigmatism and distortion according to the first embodiment of the present invention.

[0056] Figure 3 2 is a schematic structural diagram of an optical lens according to a second embodiment of the present invention.

[0057] Figure 4 Schematic diagram of spherical aberration, astigmatism and distortion according to the second embodiment of the present invention.

[0058] Figure 5 2 is a schematic structural diagram of an optical lens according to a third embodiment of the present invention.

[0059] Figure 6 Schematic diagram of spherical aberration, astigmatism and distortion according to the third embodiment of the present invention.

[0060] Figure 7 4 is a schematic structural diagram of an optical lens according to a fourth embodiment of the present invention.

[0061] Figure 8 Schematic diagram of spherical aberration, astigmatism and distortion according to the fourth embodiment of the present invention.

[0062] Fig. 9 2 is a schematic structural diagram of an optical lens according to a fifth embodiment of the present invention.

[0063] Fig.10 Schematic diagram of spherical aberration, astigmatism and distortion of the fifth embodiment of the present invention.

[0064] Fig.11 2 is a schematic structural diagram of an optical lens according to a sixth embodiment of the present invention.

[0065] Fig.12 Schematic diagram of spherical aberration, astigmatism and distortion of the sixth embodiment of the present invention.

[0066] Fig.13 2 is a schematic structural diagram of an optical lens according to a seventh embodiment of the present invention.

[0067] Fig.14 Schematic diagram of spherical aberration, astigmatism and distortion of the seventh embodiment of the present invention.

[0068] Fig.15 It is a structural schematic diagram of an imaging module according to an embodiment of the present invention.

[0069] Fig.16 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

[0070] Main component symbols

[0071] Electronic device 1000

[0072] Image acquisition module 100

[0073] Optical lens 10

[0074] First lens L1

[0075] Second lens L2

[0076] The third lens L3

[0077] The fourth lens L4

[0078] Right angle prism L5

[0079] Filter L6

[0080] Aperture STO

[0081] Object side S1, S3, S5, S7, S12

[0082] Like side S2, S4, S6, S8, S13

[0083] Incident surface S9

[0084] Reflective surface S10

[0085] Exit surface S11

[0086] Imaging surface S14

[0087] Photosensitive element 20

[0088] Housing 200 DETAILED DESCRIPTION

[0089] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0090] See also Figure 1 The optical lens 10 of the embodiment of the present invention includes, from the object side to the image side along the optical axis, a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with refractive power, and a fourth lens L4 with refractive power.

[0091] The first lens L1 has an object-side surface S1 and an image-side surface S2, the second lens L2 has an object-side surface S3 and an image-side surface S4, the third lens L3 has an object-side surface S5 and an image-side surface S6, the fourth lens L4 has an object-side surface S7 and an image-side surface S8, and the right-angle prism L5 has an incident surface S9, a reflection surface S10, and an exit surface S11. The object-side surface and the image-side surface of the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical surfaces.

[0092] The optical lens meets the following conditions:

[0093] -4.5 <f12 / f234<-2;

[0094] Wherein, f12 is the combined effective focal length of the first lens L1 and the second lens L2, and f234 is the combined effective focal length of the second lens L2, the third lens L3 and the fourth lens L4.

[0095] When the above relationship is satisfied, a reasonable configuration of the ratio of the combined effective focal length of the first lens L1 and the second lens L2 to the combined effective focal length of the first lens L1 and the second lens L2, the third lens L3 and the fourth lens L4 can help avoid the first two lenses from producing a large spherical aberration, and reasonably set the effective focal length of each lens group, that is, shorten the overall length of the optical lens 10, achieve a telephoto characteristic, improve the aberration correction capability, and enable the optical lens 10 to obtain better imaging quality.

[0096] The prism L5 is used to deflect the light, so that the optical lens 10 has a periscope structure, thereby effectively utilizing the space, shortening the lateral thickness of the optical lens 10, achieving a telephoto characteristic, and saving the space occupied by the optical lens 10.

[0097] It can be understood that the prism L5 can be a right-angle prism, a regular prism, or other types of prisms, as long as it can deflect the light.

[0098] In some embodiments, the optical lens satisfies the following condition:

[0099] 3.3° / mm <CRA1 / (2*SD42)<6.3° / mm;

[0100] Wherein, CRA1 is the incident angle of the chief ray of 1.0 field of view on the imaging plane of the optical lens 10, and SD42 is the maximum effective semi-aperture of the image side surface S8 of the fourth lens L4.

[0101] When the above relationship is satisfied, the ratio of the incident angle of the main light of the 1.0 field of view on the imaging plane of the optical lens 10 to the maximum effective semi-aperture of the image side S8 of the fourth lens L4 is reasonably set, which is conducive to better matching the chip of the optical lens 10, and the reasonable configuration of the maximum effective semi-aperture of the image side S8 of the fourth lens L4 is conducive to the edge field of view light to transition to the image plane with a larger illumination, thereby providing effective help for improving the imaging quality. When CRA1 / (2*SD42)>=6.3° / mm, the incident angle of the main light of the 1.0 field of view on the imaging plane is too large, which is easy to cause dark corners and uneven imaging effects in various fields of view; when CRA1 / (2*SD42)<=3.3° / mm, the incident angle of the main light of the 1.0 field of view on the imaging plane is too small, which is not easy to match high-pixel chips, and thus cannot achieve high-pixel shooting effects.

[0102] In some embodiments, the optical lens satisfies the following condition:

[0103] 0.5 <ET3 / (|SAG31|+|SAG32|)<6;

[0104] Among them, ET3 is the edge thickness value of the third lens L3, SAG31 is the on-axis distance from the intersection of the object side surface S5 of the third lens L3 and the optical axis to the maximum effective radius of the object side surface S5 of the third lens L3, and SAG32 is the on-axis distance from the intersection of the image side surface S6 of the third lens L3 and the optical axis to the maximum effective radius of the image side surface S6 of the third lens L3.

[0105] Thus, when the above relationship is satisfied, the ratio of the absolute value of the sum of the sag heights of the third lens L3 and the object side S5 and the image side S6 of the third lens L3 is reasonably controlled, which is beneficial to reducing the total length of the system, improving the processability of the third lens L3, and reducing the molding sensitivity. When ET3 / (|SAG31|+|SAG32|)<=0.5, the edge thickness of the third lens L3 is too small, and the sag heights of the object side and the image side of the third lens L3 are too large, resulting in a large thickness difference between the center and the edge of the lens, which is easy to wear during the lens molding and assembly process, and increases the manufacturing cost; when ET3 / (|SAG31|+|SAG32|)>=6, the edge thickness of the third lens L3 is too large, which increases the material input cost and is easy to increase the weight of the final lens, which is not conducive to achieving a light and thin design of the lens.

[0106] In some embodiments, the optical lens 10 satisfies the following conditional formula:

[0107] SDmax / SDmin<1.45;

[0108] Wherein, SDmax is the maximum value of the maximum effective half-aperture of each object-side surface or image-side surface of the first lens, the second lens, the third lens and the fourth lens, and SDmin is the minimum value of the maximum effective half-aperture of each object-side surface or image-side surface of the first lens, the second lens, the third lens and the fourth lens.

[0109] When the above relationship is satisfied, the ratio of the maximum value to the minimum value of the maximum effective semi-aperture of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4 is reasonably configured to avoid the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4 of the optical lens 10 having too large a difference in aperture, thereby increasing the molding sensitivity of the optical lens 10 and reducing the stability. When SDmax / SDmin>=1.45, the maximum value and the minimum value of the maximum effective semi-aperture of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4 differ too much, the uniformity of the maximum effective semi-aperture of the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4 of the optical lens 10 is reduced, the size difference is too large, resulting in a large light deflection angle, and it will also increase the molding difficulty and processing cost.

[0110] In some embodiments, the optical lens 10 satisfies the following conditional formula:

[0111] 0.5 <R22 / (CT2+AT23)<3.5;

[0112] Wherein, R22 is the curvature radius of the image-side surface S4 of the second lens L2 at the optical axis, CT2 is the thickness of the second lens L2 on the optical axis, and AT23 is the air gap between the second lens L2 and the third lens L3 on the optical axis.

[0113] When the above relationship is satisfied, the ratio of the curvature radius of the image side surface S4 of the second lens L2 at the optical axis to the sum of the thickness of the second lens L2 and the air space to the next lens on the optical axis is reasonably configured, which is beneficial to shortening the total length of the optical lens 10. When R22<=2.4, the image side surface S4 of the second lens L2 will be too curved, increasing the difficulty of molding and assembly; and when R22>=4, the image side surface S4 of the second lens L2 will be too flat, which is not conducive to correcting aberrations such as spherical aberration and chromatic aberration generated by the front and rear lenses. In addition, the reasonable configuration of the distance between the image side surface S4 of the second lens L2 and the upper surface and the rear surface is also beneficial to lens assembly and reduces the difficulty of molding.

[0114] In some embodiments, the optical lens 10 satisfies the following conditional formula:

[0115] 0.5mm -1 <f1 / (R11*CT1)<2.5mm -1 ;

[0116] Wherein, f1 is the effective focal length of the first lens L1, R11 is the curvature radius of the object-side surface S1 of the first lens L1, and CT1 is the thickness of the first lens L1 on the optical axis.

[0117] When the above relationship is satisfied, the relationship between the effective focal length of the first lens L1 and the curvature radius and thickness of the object side S1 of the first lens L1 is reasonably set, which is conducive to reducing the pressure of balancing spherical aberration of the subsequent lens group and improving the resolution; in addition, the reasonable setting of the curvature radius and thickness is also helpful to reduce sensitivity, reduce molding difficulties, and reduce processing costs. When f1 / (R11*CT1)<=0.5mm -1 When f1 / (R11*CT1)>=2.5mm, the radius of curvature of the object side S1 of the first lens L1 is too large, which is not conducive to aberration correction, and the thickness is too large, which is not conducive to saving materials and increases the cost; when f1 / (R11*CT1)>=2.5mm -1 When the positive refractive power provided by the first lens L1 is too large, it is not conducive to the balanced distribution of the refractive power of the optical lens 10, thereby causing unnecessary aberrations and reducing the imaging quality.

[0118] In some embodiments, the optical lens 10 satisfies the following conditional formula:

[0119] 1mm -1 <FNO / SD11<3mm -1 ;

[0120] Wherein, FNO is the aperture number of the optical lens, and SD11 is the maximum effective semi-aperture of the object-side surface S1 of the first lens L1.

[0121] When the above relationship is satisfied, a reasonable configuration of the ratio of the aperture number of the optical lens and the maximum effective semi-aperture of the object side S1 of the first lens L1 is conducive to obtaining sufficient light transmission in a dark environment, reducing the size of the Airy disk, and improving the shooting effect in a dark environment such as cloudy and rainy days. In addition, a reasonable setting of the maximum effective semi-aperture value of the object side S1 of the first lens L1 helps sufficient light to smoothly enter the optical lens 10 and reach the imaging surface, avoiding dark corners at the four corners of the electronic photosensitive element.

[0122] In some embodiments, the optical lens 10 satisfies the following conditional formula:

[0123] 0.65 <SD42 / ImgH<0.95;

[0124] SD42 is the maximum effective semi-aperture of the image-side surface S8 of the fourth lens L4, and ImgH is half the diagonal length of the effective photosensitive area of ​​the imaging surface, that is, the half image height.

[0125] When the above relationship is satisfied, the ratio of the maximum effective semi-aperture and the half-image height of the image side S8 of the fourth lens L4 is reasonably configured, which is conducive to controlling the chief ray angle of the edge field of view within a reasonable range, and can make the chief ray angle of the inner field of view better match the chip; in addition, it is also conducive to reducing the overall size of the optical lens, saving materials during manufacturing, and saving space for the equipment equipped with the lens. When SD42 / ImgH<=0.65, the maximum effective semi-aperture of the image side S8 of the fourth lens L4 is too small relative to the image plane size, which is not conducive to reducing the total optical length and easily causes the edge field of view light deflection angle to be too large; when SD42 / ImgH>=0.95, the maximum effective semi-aperture of the image side S8 of the fourth lens L4 is too large, which easily causes the unreasonable distribution of the middle thickness and edge thickness of the fourth lens L4 and the lens radius, increases the difficulty of processing, and makes manufacturing and molding difficult.

[0126] In some embodiments, the optical lens 10 further includes a stop STO. The stop STO is disposed before the first lens L1. The stop STO is used to reduce stray light and help improve image quality.

[0127] In some embodiments, the optical lens 10 further includes a filter L6, and the filter L6 has an object side surface S12 and an image side surface S13. The filter L6 is disposed on the image side surface S8 of the fourth lens L4 to filter out light of other wavelengths such as visible light and only allow infrared light to pass, so that the optical lens 10 can also form an image in a dim environment and other special application scenarios.

[0128] When the optical lens 10 is used for imaging, the light emitted or reflected by the subject enters the optical lens 10 from the object side, is deflected by the prism L5, and passes through the first lens L1, the second lens L2, the third lens L3, the fourth lens L4 and the filter L6 in sequence, and finally converges on the image plane S14.

[0129] In some embodiments, the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all made of plastic. In this case, the plastic lens can reduce the weight of the optical lens 10 and reduce the production cost. In other embodiments, each lens can also be made of glass, or any combination of plastic and glass.

[0130] First embodiment

[0131] Please continue to see Figure 1In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0132] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0133] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is concave at the near optical axis; the object-side surface S3 of the second lens L2 is convex at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is concave at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is convex at the near optical axis.

[0134] The object-side surface S1 of the first lens L1 is convex at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is concave at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is convex at the circumference, and the image-side surface S6 is concave at the circumference; the object-side surface S7 of the fourth lens L4 is convex at the circumference, and the image-side surface S8 is convex at the circumference.

[0135] See also Figure 2 , Figure 2 The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm are shown in the first embodiment, wherein Figure 2 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the first embodiment satisfies the conditions of the following table.

[0136] Table 1

[0137]

[0138]

[0139] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 1 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0140] Table 2

[0141]

[0142] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0143]

[0144] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order aspherical surface, and Table 2 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for each spherical mirror surface 9, 10 in Example 1.

[0145] Second embodiment

[0146] See also Figure 3 In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0147] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0148] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is convex at the near optical axis; the object-side surface S3 of the second lens L2 is concave at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is concave at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is convex at the near optical axis.

[0149] The object-side surface S1 of the first lens L1 is convex at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is concave at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is concave at the circumference, and the image-side surface S6 is convex at the circumference; the object-side surface S7 of the fourth lens L4 is concave at the circumference, and the image-side surface S8 is concave at the circumference.

[0150] See also Figure 4 , Figure 4The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the second embodiment are shown. Figure 4 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the second embodiment satisfies the conditions in the following table.

[0151] Table 3

[0152]

[0153]

[0154] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 3 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0155] Table 4

[0156]

[0157]

[0158] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0159]

[0160] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order of the aspherical surface, and Table 5 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for each spherical mirror surface 9, 10 in Example 2.

[0161] Third embodiment

[0162] See also Figure 5 In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with positive refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0163] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0164] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is convex at the near optical axis; the object-side surface S3 of the second lens L2 is concave at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is concave at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is convex at the near optical axis.

[0165] The object-side surface S1 of the first lens L1 is concave at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is concave at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is concave at the circumference, and the image-side surface S6 is convex at the circumference; the object-side surface S7 of the fourth lens L4 is convex at the circumference, and the image-side surface S8 is concave at the circumference.

[0166] See also Figure 6 , Figure 6 The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the third embodiment are shown. Figure 6 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the third embodiment satisfies the conditions in the following table.

[0167] Table 5

[0168]

[0169]

[0170] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 5 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0171] Table 6

[0172]

[0173] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0174]

[0175] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order of the aspherical surface, and Table 8 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for each spherical mirror surface 9, 10 in Example 3.

[0176] Fourth embodiment

[0177] See also Figure 7 In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with negative refractive power, a fourth lens L4 with positive refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0178] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0179] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is concave at the near optical axis; the object-side surface S3 of the second lens L2 is convex at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is concave at the near optical axis; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis, and the image-side surface S8 is concave at the near optical axis.

[0180] The object-side surface S1 of the first lens L1 is convex at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is concave at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is concave at the circumference, and the image-side surface S6 is convex at the circumference; the object-side surface S7 of the fourth lens L4 is convex at the circumference, and the image-side surface S8 is concave at the circumference.

[0181] See also Figure 8 , Figure 8 The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the fourth embodiment are shown. Figure 8 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the fourth embodiment satisfies the conditions of the following table.

[0182] Table 7

[0183]

[0184]

[0185] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 7 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0186] Table 8

[0187]

[0188]

[0189] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0190]

[0191] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order aspherical surface, and Table 11 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for each spherical mirror surface 9, 10 in Example 4.

[0192] Fifth embodiment

[0193] See also Fig. 9 In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0194] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0195] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is convex at the near optical axis; the object-side surface S3 of the second lens L2 is concave at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is convex at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is convex at the optical axis.

[0196] The object-side surface S1 of the first lens L1 is convex at the circumference, and the image-side surface S2 is concave at the circumference; the object-side surface S3 of the second lens L2 is convex at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is convex at the circumference, and the image-side surface S6 is convex at the circumference; the object-side surface S7 of the fourth lens L4 is concave at the circumference, and the image-side surface S8 is convex at the circumference.

[0197] See also Fig.10 , Fig.10 The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the fifth embodiment are shown. Fig.10 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the fifth embodiment satisfies the conditions of the following table.

[0198] Form 9

[0199]

[0200]

[0201] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 9 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0202] Table 10

[0203]

[0204] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0205]

[0206] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order aspherical surface, and Table 14 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for the spherical mirror surfaces 9 and 10 in Example 5.

[0207] Sixth embodiment

[0208] See also Fig.11In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0209] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0210] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is concave at the near optical axis; the object-side surface S3 of the second lens L2 is convex at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is concave at the near optical axis, and the image-side surface S6 is convex at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is concave at the near optical axis.

[0211] The object-side surface S1 of the first lens L1 is concave at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is convex at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is convex at the circumference, and the image-side surface S6 is convex at the circumference; the object-side surface S7 of the fourth lens L4 is concave at the circumference, and the image-side surface S8 is convex at the circumference.

[0212] See also Fig.12 , Fig.12 The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the sixth embodiment are shown. Fig.12 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the sixth embodiment satisfies the conditions of the following table.

[0213] Table 11

[0214]

[0215]

[0216] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 11 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0217] Table 12

[0218]

[0219]

[0220] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0221]

[0222] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order aspherical surface, and Table 14 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for the spherical mirror surfaces 9 and 10 in Example 5.

[0223] Seventh embodiment

[0224] See also Fig.13 In the optical lens 10 in this embodiment, from the object side to the image side, it includes a prism L5, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with negative refractive power and an infrared filter L6 along the optical axis, wherein the aperture STO is located between the prism L5 and the first lens L1.

[0225] In this embodiment, the prism L5 may be a right-angle prism for deflecting the incident light by 90 degrees.

[0226] In this embodiment, the object-side surface S1 of the first lens L1 is convex at the near optical axis, and the image-side surface S2 is convex at the near optical axis; the object-side surface S3 of the second lens L2 is concave at the near optical axis, and the image-side surface S4 is concave at the near optical axis; the object-side surface S5 of the third lens L3 is convex at the near optical axis, and the image-side surface S6 is convex at the near optical axis; the object-side surface S7 of the fourth lens L4 is concave at the near optical axis, and the image-side surface S8 is convex at the near optical axis.

[0227] The object-side surface S1 of the first lens L1 is convex at the circumference, and the image-side surface S2 is convex at the circumference; the object-side surface S3 of the second lens L2 is convex at the circumference, and the image-side surface S4 is concave at the circumference; the object-side surface S5 of the third lens L3 is convex at the circumference, and the image-side surface S6 is concave at the circumference; the object-side surface S7 of the fourth lens L4 is concave at the circumference, and the image-side surface S8 is convex at the circumference.

[0228] See also Fig.14 , Fig.14The spherical aberration curves of the optical lens 10 at wavelengths of 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm, the astigmatism graph of the light at a wavelength of 555nm, and the distortion curve graph at a wavelength of 555nm in the seventh embodiment are shown. Fig.14 The reference wavelength of the focal length is 555 nm, and the optical lens 10 in the seventh embodiment satisfies the conditions in the following table.

[0229] Form 13

[0230]

[0231]

[0232] It should be noted that the reference wavelength of the refractive index and Abbe number in Table 13 is 586.7 nm. EF is the effective focal length of the optical lens, FNO is the aperture number of the optical lens 10, FOV is the field of view of the optical lens 10, and TTL is the distance from the object side surface S1 of the first lens L1 to the image surface S15 on the optical axis.

[0233] Table 14

[0234]

[0235] It should be noted that the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 are all aspherical lenses. The shape of the aspherical surface is determined by the following formula:

[0236]

[0237] Among them, Z is the longitudinal distance between any point on the aspherical surface and the surface vertex, r is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature), k is the cone constant, Ai is the correction coefficient of the i-th order aspherical surface, and Table 14 gives the high-order coefficients K, A4, A6, A8, A10... that can be used for the spherical mirror surfaces 9 and 10 in Example 5.

[0238] Table 15 shows the values ​​of f12 / f234, CRA1 / (2*SD42), ET3 / (|SAG31|+|SAG32|), SDmax / SDmin, R22 / (CT2+AT23), f1 / (R11*CT1), FNO / SD11 and SD42 / ImgH in the optical lenses of the first to seventh embodiments.

[0239] Form 15

[0240]

[0241]

[0242] See also Fig.15 The optical lens 10 of the embodiment of the present invention can be applied to the imaging module 100 of the embodiment of the present invention. The imaging module 100 includes a photosensitive element 20 and the optical lens 10 of any of the above embodiments. The photosensitive element 20 is arranged on the image side of the optical lens 10, such as Fig.15 As shown, the imaging module 100 is a periscope imaging module.

[0243] The photosensitive element 20 may be a complementary metal oxide semiconductor (CMOS) image sensor or a charge-coupled device (CCD).

[0244] Please continue to see Fig.16 The imaging module 100 of the embodiment of the present invention can be applied to the electronic device 1000 of the embodiment of the present invention. The electronic device 1000 includes a housing 200 and the imaging module 100 , and the imaging module 100 is mounted on the housing 200 .

[0245] The electronic device 1000 of the embodiment of the present invention can be applied to vehicle-mounted, automatic driving and monitoring devices, wherein the electronic device 1000 includes but is not limited to driving recorders, smart phones, tablet computers, laptop computers, e-book readers, portable multimedia players (PMPs), portable phones, video phones, digital still cameras, mobile medical devices, wearable devices and other electronic devices that support imaging.

[0246] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all variations that fall within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0247] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An optical lens, characterized in that: The optical lens is composed of four lenses with refractive power, which include: A prism having a reflecting surface; a first lens having positive refractive power; a second lens element having negative refractive power; a third lens having refractive power; a fourth lens having a refractive power, wherein the object side surface of the fourth lens is an aspherical surface; The optical lens satisfies the following condition: -4.5 <f12 / f234<-2,SDmax / SDmin<1.45; f12 is the combined effective focal length of the first lens and the second lens, f234 is the combined effective focal length of the second lens, the third lens and the fourth lens, SDmax is the maximum value of the maximum effective semi-aperture of each object side surface or image side surface of the first lens, the second lens, the third lens and the fourth lens, and SDmin is the minimum value of the maximum effective semi-aperture of each object side surface or image side surface of the first lens, the second lens, the third lens and the fourth lens.

2. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 3.3° / mm <CRA1 / (2*SD42)<6.3° / mm; Wherein, CRA1 is the incident angle of the chief ray of 1.0 field of view on the imaging plane of the optical lens, and SD42 is the maximum effective semi-aperture of the image side surface of the fourth lens.

3. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 0.5 <ET3 / (|SAG31|+|SAG32|)<6; Among them, ET3 is the edge thickness value of the third lens, SAG31 is the on-axis distance from the intersection of the object side surface of the third lens and the optical axis to the maximum effective radius of the object side surface of the third lens, and SAG32 is the on-axis distance from the intersection of the image side surface of the third lens and the optical axis to the maximum effective radius of the image side surface of the third lens.

4. The optical lens according to claim 1, wherein: The object side surface of the first lens is convex at the near optical axis, and the image side surface of the second lens is concave at the near optical axis.

5. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 0.5 <R22 / (CT2+AT23)<3.5; Wherein, R22 is the radius of curvature of the image side surface of the second lens at the optical axis, CT2 is the thickness of the second lens on the optical axis, and AT23 is the air gap between the second lens and the third lens on the optical axis.

6. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 0.5 mm -1 <f1 / (R11*CT1)< 2.5 mm -1 ; Wherein, f1 is the effective focal length of the first lens, R11 is the curvature radius of the object side surface of the first lens, and CT1 is the thickness of the first lens on the optical axis.

7. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 1 mm -1 <FNO / SD11<3 mm -1 ; Wherein, FNO is the aperture number of the optical lens, and SD11 is the maximum effective semi-aperture of the object side of the first lens.

8. The optical lens according to claim 1, wherein: The optical lens satisfies the following conditional formula: 0.65 <SD42 / ImgH<0.95; Wherein, SD42 is the maximum effective semi-aperture of the image side surface of the fourth lens, and ImgH is half of the diagonal length of the effective photosensitive area of ​​the imaging surface.

9. An imaging module, characterized in that: include: The optical lens according to any one of claims 1 to 8; and A photosensitive element is arranged on the image side of the optical lens.

10. An electronic device, characterized in that: include: case; and The imaging module as described in claim 9 is mounted on the housing.

Images