CN113759510A - Optical imaging system, get for instance module and electronic equipment - Google Patents
Optical imaging system, get for instance module and electronic equipment Download PDFInfo
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- CN113759510A CN113759510A CN202111079062.2A CN202111079062A CN113759510A CN 113759510 A CN113759510 A CN 113759510A CN 202111079062 A CN202111079062 A CN 202111079062A CN 113759510 A CN113759510 A CN 113759510A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/004—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having four lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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Abstract
The invention relates to the field of optical imaging, and discloses an optical imaging system, an image capturing module and electronic equipment, wherein the optical imaging system comprises: the image side of the object side comprises: a first lens element having a positive optical power, an object-side surface of the first lens element being convex at a paraxial region, an image-side surface of the first lens element being convex at a paraxial region; a second lens having a negative optical power, an image side surface of the second lens being concave at a paraxial region; a third lens having positive optical power, an object side surface of the third lens being convex at a paraxial region; a fourth lens having an optical power; the optical imaging system satisfies the following conditional expression: -5.0< L1R2/L1R1< -2.0; wherein L1R1 is a radius of curvature of the object-side surface of the first lens element at the optical axis, and L1R2 is a radius of curvature of the image-side surface of the first lens element at the optical axis. The method is favorable for improving the imaging quality of the optical imaging system.
Description
Technical Field
The present invention relates to the field of optical imaging technologies, and in particular, to an optical imaging system, an image capturing module and an electronic device.
Background
With the development of the photographic imaging technology, the imaging lens and the image sensor in the camera module are greatly improved, but the market demand for high shooting performance of the electronic equipment still only increases.
At present, the imaging lens can achieve a better balance in terms of preparation cost and imaging quality, but still has a further development space in the aspects of reducing preparation difficulty and cost, improving imaging quality and the like.
Disclosure of Invention
The invention discloses an optical imaging system, an image capturing module and electronic equipment, which have good imaging quality.
To achieve the above object, the present invention provides an optical imaging system comprising: the image side of the object side comprises:
a first lens element having a positive optical power, an object-side surface of the first lens element being convex at a paraxial region, an image-side surface of the first lens element being convex at a paraxial region;
a second lens having a negative optical power, an image side surface of the second lens being concave at a paraxial region;
a third lens having positive optical power, an object side surface of the third lens being convex at a paraxial region;
a fourth lens having an optical power;
the optical imaging system satisfies the following conditional expression:
-5.0<L1R2/L1R1<-2.0；
wherein L1R1 is a radius of curvature of the object-side surface of the first lens element at the optical axis, and L1R2 is a radius of curvature of the image-side surface of the first lens element at the optical axis.
In the optical imaging system, the first lens has positive focal power, the object side surface of the first lens is convex at a paraxial region, and the image side surface of the first lens is convex at a paraxial region; the second lens has negative focal power, and the image side surface of the second lens is concave at the paraxial region; the third lens has positive focal power, and the object side surface of the third lens is convex at a paraxial region; the fourth lens has optical power.
The first lens has positive focal power and is of a double-convex-surface structure, can generate strong positive refractive power, can inhibit the angle of marginal rays from being too large, and is beneficial to an optical imaging system to realize a long-focus function; the second lens with negative focal power can inhibit the first lens from generating huge aberration in the positive direction, and is favorable for improving the imaging quality of the optical imaging system; the third lens has stronger positive refractive power, acts with the first lens together, and is beneficial to shortening the total length of the optical imaging system; therefore, by reasonably configuring the refractive powers and the surface types of the first lens element to the fourth lens element, the aberration in the optical imaging lens is favorably eliminated, the mutual correction of the aberration among the lens elements is realized, the resolving power of the optical imaging lens is improved, the detailed characteristics of a shot object can be well captured, high-quality imaging is obtained, and the imaging definition is improved. Meanwhile, by controlling the curvature radius of the object side surface and the image side surface of the first lens at the optical axis, the first lens can generate strong positive refractive power, and large-angle light can smoothly enter an imaging surface after entering the optical imaging system, so that the optical imaging system has good imaging quality. When L1R2/L1R1 is less than or equal to-5 or L1R2/L1R1 is more than or equal to-2, the object side surface or the image side surface of the first lens is too smooth, the refractive power of the first lens is insufficient, the angle of marginal light rays entering the optical imaging system is easily reduced, and the relative illumination of the optical imaging system is not favorably improved.
Optionally, the optical imaging system satisfies the following conditional expression:
1.0<YI/L3R1YI<1.3；
wherein YI is half of the height of the maximum field angle corresponding image of the optical imaging system; L3R1YI is the maximum effective half aperture of the object side surface of the third lens.
Through the limitation of satisfying the conditional expression, the image height of the optical imaging system and the maximum effective semi-aperture of the object side surface of the third lens are reasonably configured, on one hand, the optical imaging system is favorable for matching a large-size photosensitive chip, on the other hand, the edge light smoothly enters an imaging surface, and the imaging quality of the optical imaging system is greatly improved under the combined action of the two. When YI/L3R1YI is less than or equal to 1.0, the image height of the optical imaging system is too small to be matched with a large-size photosensitive chip, and high-pixel imaging is difficult to realize; when YI/L3R1YI is more than or equal to 1.3, the maximum effective half aperture of the object side surface of the third lens is too large, so that edge light rays are not favorably and smoothly enter the fourth lens, aberration or dark angle is easy to generate, and the imaging quality of the optical imaging system is reduced.
Optionally, the optical imaging system satisfies the following conditional expression:
80.0<RI/BFL<220.0；
wherein, RI is a ratio of the illuminance of the edge field to the illuminance of the central field on the imaging plane, BFL is a back focus, i.e. a minimum distance from the image-side surface of the fourth lens to the imaging plane in the optical axis direction.
By satisfying the definition of the conditional expression, the periphery of the image forming surface can ensure sufficient light. When RI/BFL is less than or equal to 80.0, the periphery of an imaging surface can not ensure sufficient brightness, and the imaging quality of an optical imaging system in shooting under the dark light condition is poor; when RI/BFL is more than or equal to 220, the back focus of the optical imaging system is too small, which is not beneficial to the assembly of the lens.
Optionally, the optical imaging system satisfies the following conditional expression:
1.5441<nd<1.6632；
19.4<vd<56.1；
and nd is the refractive index of any lens in the optical imaging system, vd is the Abbe number of any lens in the optical imaging system, and the reference wavelengths of the refractive index and the Abbe number of the lens are 587.56 nm.
By satisfying the limitation of the conditional expression, if nd or vd in a certain lens exceeds the range in the conditional expression, that means that the lens is not a plastic lens but a glass lens, and at present, in the industry, in order to operate in a low-cost direction, a glass lens is not generally adopted, so that the requirement of the plastic lens can be satisfied by using the conditional expression, and the glass lens is not used, thereby effectively reducing the cost.
Optionally, the optical imaging system satisfies the following conditional expression:
0.5<TTL/(YI*EPD)<1.5；
wherein, TTL is a distance from an object-side surface of the first lens element to an image plane on an optical axis, YI is a half of a maximum field angle of the optical imaging system corresponding to a high image, and EPD is an entrance pupil diameter of the optical imaging system.
By satisfying the limitation of the conditional expression, the maximum field angle of the optical imaging system corresponds to the image height, and the distance between the object side surface of the first lens and the imaging surface on the optical axis and the entrance pupil diameter are reasonably configured, so that the length of the optical imaging system can be effectively compressed to realize the miniaturization design, and meanwhile, the optical imaging system can have sufficient light entering amount, and further the imaging quality of the optical imaging system is improved under the condition of satisfying the requirement of the optical imaging system on the maximum field angle corresponding to the image height. When TTL/(YI EPD) is less than or equal to 0.5, the distance from the object-side surface of the first lens of the optical system to the imaging surface on the optical axis is too small, the lens arrangement is crowded, which is not beneficial to aberration correction of the lens, so that the imaging quality of the optical imaging system is poor; when TTL/(YI × EPD) ≥ 1.5, since the f-number is inversely proportional to the entrance pupil diameter, and the entrance pupil diameter of the optical imaging system is too small, the f-number is too large, which results in a small upper limit of the Modulation Transfer Function (MTF), and thus an optical imaging system with high performance cannot be designed.
Optionally, the optical imaging system satisfies the following conditional expression:
0.5<FL/FOV<0.7；
wherein FL is the optical focal length of the optical imaging system, and FOV is the maximum field angle of the optical imaging system.
By satisfying the limitation of the conditional expression, the optical focal length and the maximum field angle of the optical imaging system can be effectively balanced, so that the optical imaging system has a large field angle, and the image capturing range is improved; when the FL/FOV is more than or equal to 0.7, the view field angle of the optical imaging system is too small, and the design of a large view field angle is not met; when FL/FOV is less than or equal to 0.5, the field angle of the optical system is too large, which causes rapid increase of distortion and reduces the imaging quality of the optical imaging system.
Optionally, the optical imaging system satisfies the following conditional expression:
10.0<EPD*Fno<15.0；
wherein EPD is an entrance pupil diameter of the optical imaging system; fno is the f-number of the optical imaging system.
By satisfying the definition of the conditional expressions, the center and the periphery of the imaging surface of the optical imaging system can ensure sufficient light. Since the f-number is inversely proportional to the diameter of the entrance pupil, when EPD × Fno is not greater than 10, the f-number of the optical imaging system is too large, which results in a small Modulation Transfer Function (MTF) upper limit value, and thus an optical imaging system with high performance cannot be designed; when EPD Fno is larger than or equal to 15, the diameter of the entrance pupil of the optical imaging system is too large, which is not beneficial to realizing the small head of the optical system.
Optionally, the optical imaging system satisfies the following conditional expression:
0.7<FL/TTL<1.2；
wherein, FL is the optical focal length of the optical imaging system, and TTL is the distance on the optical axis from the object-side surface of the first lens element to the imaging surface.
By satisfying the limitation of the conditional expression, the optical imaging system shortens the distance from the object side surface of the first lens to the imaging surface on the optical axis while keeping a longer optical focal length, thereby being beneficial to the miniaturization design of the optical imaging lens and also being beneficial to the clear imaging of a farther scenery; when FL/TTL is less than or equal to 0.7, the distance from the object side surface of the first lens of the optical imaging system to the imaging surface on the optical axis is too large, which is not beneficial to the ultra-thinness of the optical imaging system; when the FL/TTL is greater than or equal to 1.2, the optical focal length of the optical imaging system is too long, which results in an excessively small field angle, which is not favorable for meeting the requirement of the optical imaging system on the field angle, and cannot obtain sufficient spatial information of the object.
The invention also provides an image capturing module, comprising: the optical imaging system and the photosensitive chip are arranged on the image side of the optical imaging system. Has good imaging quality.
The present invention also provides an electronic device, comprising: the shell and foretell get for instance the module, get for instance the module and install on the shell. The electronic equipment can have good image pickup performance.
Drawings
Fig. 1 is a schematic structural view of an optical imaging system of a first embodiment;
FIG. 2 is a schematic diagram of a longitudinal spherical aberration diagram, an astigmatism graph and distortion of the optical imaging system of the first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an optical imaging system according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a longitudinal spherical aberration diagram, an astigmatism graph and distortion of an optical imaging system according to a second embodiment of the invention;
FIG. 5 is a schematic structural diagram of an optical imaging system according to a third embodiment of the present invention;
FIG. 6 is a schematic diagram of a longitudinal spherical aberration diagram, an astigmatism graph and distortion of an optical imaging system according to a third embodiment of the invention;
FIG. 7 is a schematic structural diagram of an optical imaging system according to a fourth embodiment of the present invention;
FIG. 8 is a schematic diagram of a longitudinal spherical aberration diagram, an astigmatism graph and distortion of an optical imaging system according to a fourth embodiment of the invention;
FIG. 9 is a schematic structural diagram of an optical imaging system according to a fifth embodiment of the present invention;
fig. 10 is a schematic diagram of a longitudinal spherical aberration diagram, an astigmatism graph and distortion of an optical imaging system according to a fifth embodiment of the present invention.
Icon: 1-an optical imaging system; 10-a first lens; 20-a second lens; 30-a third lens; 40-a fourth lens; 50-an optical filter; s1, S3, S5, S7, S9-object side; s2, S4, S6, S8, S10-image side; s11 — image plane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the four-piece imaging lens can obtain better balance in the preparation cost and the imaging quality, and has further development space in the aspects of reducing the preparation difficulty and the cost, improving the imaging quality and the like. Particularly, in response to the further demand of the market for shooting performance, how to further modify the four-lens imaging lens to improve the imaging quality thereof is also one of the important points of interest in the industry.
As shown in fig. 1, an embodiment of the present invention provides an optical imaging system 1 including: the image side of the object side comprises:
a first lens element 10 having positive optical power, an object side surface S1 of the first lens element 10 being convex at a paraxial region, an image side surface S2 of the first lens element 10 being convex at a paraxial region;
a second lens 20 having a negative optical power, an image side surface S4 of the second lens 20 being concave at a paraxial region;
a third lens 30 having positive optical power, an object side S5 of the third lens 30 being convex at a paraxial region;
a fourth lens 40 having optical power;
the optical filter 50 includes an object side surface S9 and an image side surface S10.
The lenses are coaxially arranged, that is, the optical axes of the lenses are located on the same straight line, which may become the optical axis Q of the optical imaging system 11.
In the optical imaging system 1 of the present invention, the first lens element 10 has positive power, and the object-side surface S1 of the first lens element 10 is convex at the paraxial region, and the image-side surface S2 of the first lens element 10 is convex at the paraxial region; the second lens element 20 has negative power, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the third lens element 30 has positive optical power, and the object-side surface S5 of the third lens element 30 is convex at the paraxial region; the fourth lens 40 has optical power.
It should be understood that when the surface of the lens is aspheric, the aspheric surface is determined by the following formula:
where Z is the longitudinal distance between any point on the aspheric surface and the surface vertex, r is the distance between any point on the aspheric surface and the optical axis, the vertex curvature (the reciprocal of the radius of curvature) of c, k is the conic constant, and Ai is the correction coefficient of the i-th order of the aspheric surface.
The optical imaging system 1 provided by the invention satisfies the following conditional expression:
-5.0<L1R2/L1R1<-2.0；
wherein L1R1 is a curvature radius of the object-side surface of the first lens element 10 at the optical axis, and L1R2 is a curvature radius of the image-side surface of the first lens element 10 at the optical axis.
Specifically, as shown in table 1, the ratio of L1R2 to L1R1 can be selected as follows:
TABLE 1
| L1R2/ | L1R1 | -2.4886 | -3.7323 | -4.5364 | -4.0156 | -2.8872 |
The first lens has positive focal power and is of a double-convex-surface structure, can generate strong positive refractive power, can inhibit the angle of marginal rays from being too large, and is beneficial to an optical imaging system to realize a long-focus function; the second lens with negative focal power can inhibit the first lens from generating huge aberration in the positive direction, and is favorable for improving the imaging quality of the optical imaging system; the third lens has stronger positive refractive power, acts with the first lens together, and is beneficial to shortening the total length of the optical imaging system; therefore, by reasonably configuring the refractive powers and the surface types of the first lens element to the fourth lens element, the aberration in the optical imaging lens is favorably eliminated, the mutual correction of the aberration among the lens elements is realized, the resolving power of the optical imaging lens is improved, the detailed characteristics of a shot object can be well captured, high-quality imaging is obtained, and the imaging definition is improved. Meanwhile, by controlling the curvature radius of the object side surface and the image side surface of the first lens at the optical axis, the first lens can generate strong positive refractive power, and large-angle light can smoothly enter an imaging surface after entering the optical imaging system, so that the optical imaging system has good imaging quality. When L1R2/L1R1 is less than or equal to-5 or L1R2/L1R1 is more than or equal to-2, the object side surface or the image side surface of the first lens is too smooth, the refractive power of the first lens is insufficient, the angle of marginal light rays entering the optical imaging system is easily reduced, and the relative illumination of the optical imaging system is not favorably improved.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
1.0<YI/L3R1YI<1.3；
wherein YI is half of the maximum field angle corresponding image height of the optical imaging system 1; L3R1YI is the maximum effective half aperture of the object side surface of the third lens 30.
Specifically, as shown in table 2, the ratio of YI to L3R1YI can be selected as follows:
TABLE 2
| YI/L3R1YI | 1.2593 | 1.3553 | 1.0371 | 1.0362 | 1.2690 |
By satisfying the limitation of the conditional expression, the image height is reasonably configured, and the optical imaging system is favorably matched with a large-size photosensitive chip, so that the imaging quality is good; the curvature radius of the object side surface of the third lens at the optical axis is reasonably configured, so that the thickness of the third lens on the optical axis is facilitated, the miniaturization is realized, the conditional expression limitation is met, and the optical imaging system can realize the miniaturization and has good imaging quality. When the YI/L3R1YI is less than or equal to 1.0, the curvature radius of the object-side surface of the third lens at the optical axis is too large, the object-side surface is too flat, the thickness of the third lens on the optical axis is easy to increase, the total length of the whole optical imaging system is increased, and the miniaturization of the optical imaging system is not facilitated; when YI/L3R1YI is larger than or equal to 1.3, the curvature radius of the object-side surface of the third lens at the optical axis is too small, and the object-side surface is too curved, which is not beneficial to the manufacture and processing of the lens.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
80.0<RI/BFL<220.0；
wherein RI is a ratio of the illuminance of the edge field to the illuminance of the central field on the imaging plane, and BFL is a back focus, i.e., a minimum distance from the image-side surface of the fourth lens element 40 to the imaging plane in the optical axis direction.
Specifically, as shown in table 3, the ratio of RI to BFL may be selected as follows:
TABLE 3
| RI/BFL | 88.3015 | 119.3931 | 210.2625 | 192.6724 | 118.7936 |
By satisfying the definition of the conditional expression, the periphery of the image forming surface can ensure sufficient light. When RI/BFL is less than or equal to 80.0, the periphery of an imaging surface can not ensure sufficient brightness, and the imaging quality of an optical imaging system in shooting under the dark light condition is poor; when RI/BFL is more than or equal to 220, the back focus of the optical imaging system is too small, which is not beneficial to the assembly of the lens.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
1.5441<nd<1.6632；
19.4<vd<56.1；
wherein nd is the refractive index of any lens in the optical imaging system 1, and vd is the abbe number of any lens in the optical imaging system 1; NL1 denotes the refractive index of the first lens element 10, NL2 denotes the refractive index of the second lens element 20, NL3 denotes the refractive index of the third lens element 30, NL4 denotes the refractive index of the fourth lens element 40, VL1 denotes the abbe number of the first lens element 10, VL2 denotes the abbe number of the second lens element 20, VL3 denotes the abbe number of the third lens element 30, and VL4 denotes the abbe number of the fourth lens element 40.
Specifically, as shown in table 4, NL1, NL2, NL3, NL4 and VL1, VL2, VL3, VL4 may take the following values:
TABLE 4
| NL1 | 1.5445 | 1.5441 | 1.5441 | 1.5441 | 1.5441 | 1.5441 | 1.6632 |
| VL1 | 55.99 | 56.10 | 56.10 | 56.10 | 56.10 | 19.40 | 56.10 |
| NL2 | 1.6216 | 1.6539 | 1.6632 | 1.6632 | 1.6632 | 1.5441 | 1.6632 |
| VL2 | 26.0000 | 21.2300 | 20.4000 | 20.4000 | 20.4000 | 19.40 | 56.10 |
| NL3 | 1.6714 | 1.5574 | 1.5441 | 1.5441 | 1.5441 | 1.5441 | 1.6632 |
| VL3 | 19.4000 | 45.9200 | 56.1000 | 56.1000 | 56.1000 | 19.40 | 56.10 |
| NL4 | 1.5477 | 1.6616 | 1.6714 | 1.6714 | 1.6714 | 1.5441 | 1.6632 |
| VL4 | 52.8950 | 45.9200 | 19.4000 | 19.4000 | 19.4000 | 19.40 | 56.10 |
By satisfying the limitation of the conditional expression, if nd or vd in a certain lens exceeds the range in the conditional expression, that means that the lens is not a plastic lens but a glass lens, and at present, in the industry, in order to operate in a low-cost direction, a glass lens is not generally adopted, so that the requirement of the plastic lens can be satisfied by using the conditional expression, and the glass lens is not used, thereby effectively reducing the cost.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
0.5<TTL/(YI*EPD)<1.5；
wherein, TTL is a distance from an object-side surface of the first lens element 10 to an image plane on an optical axis, YI is a half of a maximum field angle corresponding image height of the optical imaging system 1, and EPD is an entrance pupil diameter of the optical imaging system 1.
Specifically, as shown in table 5, the ratio of TTL to (YI × EPD) can be selected as follows:
TABLE 5
| TTL/(YI*EPD) | 1.1963 | 1.3563 | 0.8289 | 0.6994 | 1.2601 |
By satisfying the limitation of the conditional expression, the maximum field angle of the optical imaging system corresponds to the image height, and the distance between the object side surface of the first lens and the imaging surface on the optical axis and the entrance pupil diameter are reasonably configured, so that the length of the optical imaging system can be effectively compressed to realize the miniaturization design, and meanwhile, the optical imaging system can have sufficient light entering amount, and further the imaging quality of the optical imaging system is improved under the condition of satisfying the requirement of the optical imaging system on the maximum field angle corresponding to the image height. When TTL/(YI EPD) is less than or equal to 0.5, the distance from the object-side surface of the first lens of the optical system to the imaging surface on the optical axis is too small, the lens arrangement is crowded, which is not beneficial to aberration correction of the lens, so that the imaging quality of the optical imaging system is poor; when TTL/(YI EPD) ≥ 1.5, the entrance pupil diameter of the optical imaging system is too small, and the f-number is too large, which results in a small upper limit of the MTF (Modulation Transfer Function), and thus an optical imaging system with high performance cannot be designed.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
0.5<FL/FOV<0.7；
where FL is the optical focal length of the optical imaging system 1 and FOV is the maximum field angle of the optical imaging system 1.
Specifically, as shown in table 6, the ratio of FL to FOV can be chosen as follows:
TABLE 6
| FL/FOV | 0.6039 | 0.6051 | 0.6039 | 0.6027 | 0.6036 |
By satisfying the limitation of the conditional expression, the optical focal length and the maximum field angle of the optical imaging system can be effectively balanced, so that the optical imaging system has a large field angle, and the image capturing range is improved; when the FL/FOV is more than or equal to 0.7, the view field angle of the optical imaging system is too small, and the design of a large view field angle is not met; when the FL/FOV is less than or equal to 0.5, the field angle of the optical system is too large, which causes the distortion to rise rapidly and reduces the imaging quality of the optical imaging system 1.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
10.0<EPD*Fno<15.0；
wherein EPD is an entrance pupil diameter of the optical imaging system, Fno is an f-number of the optical imaging system, and FL is an optical focal length of the optical imaging system 1.
Specifically, as shown in table 7, the product of EPD and Fno can be selected as follows:
TABLE 7
| EPD*Fno | 11.7699 | 11.7698 | 11.7702 | 14.0003 | 11.7699 |
By satisfying the definition of the conditional expressions, the center and the periphery of the imaging surface of the optical imaging system can ensure sufficient light. When EPD × Fno is not greater than 10, the f-number of the optical imaging system is too large, which results in a small upper limit value of MTF (Modulation Transfer Function), and an optical imaging system with high performance cannot be designed; when EPD Fno is not less than 15, the diameter of the entrance pupil of the optical imaging system is too large, that is, the size of the lens is too large, which causes the whole size of the lens to be increased, and thus the requirement of the size of the mobile phone module cannot be met.
In some embodiments, the optical imaging system 1 satisfies the following conditional expression:
0.7<FL/TTL<1.2；
wherein FL is an optical focal length of the optical imaging system 1, and TTL is a distance on the optical axis from the object-side surface of the first lens element 10 to the imaging surface.
Specifically, as shown in table 8, the ratio of FL to TTL can be selected as follows:
TABLE 8
| FL/TTL | 1.0452 | 0.9224 | 0.8968 | 0.8937 | 0.9924 |
By satisfying the limitation of the conditional expression, the optical imaging system shortens the distance from the object side surface of the first lens to the imaging surface on the optical axis while keeping a longer optical focal length, thereby being beneficial to the miniaturization design of the optical imaging lens and also being beneficial to the clear imaging of a farther scenery; when FL/TTL is less than or equal to 0.7, the distance from the object side surface of the first lens of the optical imaging system to the imaging surface on the optical axis is too large, which is not beneficial to the ultra-thinness of the optical imaging system; when the FL/TTL is greater than or equal to 1.2, the optical focal length of the optical imaging system is too long, which results in an excessively small field angle, which is not favorable for meeting the requirement of the optical imaging system on the field angle, and cannot obtain sufficient spatial information of the object.
First embodiment
Referring to fig. 1 and 2, the optical imaging system 1 of the first embodiment includes, in order from an object side to an image side: a first lens 10 having a positive power, a second lens 20 having a negative power, a third lens 30 having a positive power, a fourth lens 40 having a power, and a filter 50.
The object-side surface S1 of the first lens element 10 is convex at a paraxial region, and the image-side surface S2 of the first lens element 10 is convex at a paraxial region; the object-side surface S3 of the second lens element 20 is concave at the paraxial region, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the object-side surface S5 of the third lens element 30 is convex at the paraxial region, and the image-side surface S6 of the third lens element 30 is concave at the paraxial region; the object-side surface S7 of the fourth lens element 40 is concave at the paraxial region and the image-side surface S8 of the fourth lens element 40 is convex at the paraxial region.
Fig. 2 is a graph of longitudinal spherical aberration, an astigmatism and a distortion plot of the optical imaging system 1 in the first embodiment from left to right, respectively; in the longitudinal spherical aberration curve chart, the abscissa represents the distance from the imaging surface to the intersection point of the light ray and the optical axis, the ordinate is the normalized field of view, the unit is mm, and the focus deviation of each field of view is within +/-0.05 mm, which indicates that the spherical aberration of the optical imaging system 1 is small; in the astigmatism graph, the abscissa represents the focus offset, the ordinate represents the image height, and the unit is mm, and it can be seen from the graph that the focus deviation of each field of view of the sagittal image surface S and the meridional image surface T is within ± 0.05mm, which indicates that the field curvature aberration of the optical imaging system 1 is small; in a distortion graph, the abscissa represents distortion, and the ordinate represents image height in mm, and the distortion rate of each field of view is within a reasonable range, wherein an astigmatism graph and a distortion graph are data with the reference wavelength of 555 nm; therefore, as can be seen from fig. 2, various aberrations of the optical imaging system 1 in the first embodiment are small, so that the imaging quality is high and the imaging effect is excellent.
In the first embodiment, the optical focal length FL of the optical imaging system 1 is 11.77mm, the f-number FNO is 2.8023, the imaging plane S11YI is 1.0215, the distance TTL on the optical axis from the object-side surface of the first lens 10 to the imaging plane is 11.26mm, and the maximum incident angle FOV of the optical imaging system 1 is 19.49 deg.
The reference wavelength of the focal length of the lens in the first embodiment is 555nm, and the reference wavelengths of the abbe number and the refractive index are 587.56nm, and the optical imaging system 1 in the first embodiment satisfies the conditions of table 9 below, in which the radius of curvature is the radius of curvature, in mm, of the object-side surface or the image-side surface of the corresponding surface number at the optical axis Q. Surface numbers S1 and S2 denote an object-side surface S1 and an image-side surface S2 of the first lens 10, respectively, that is, in the same lens, a surface with a smaller surface number is an object-side surface, and a surface with a larger surface number is an image-side surface. The first value in the "thickness" parameter column of the first lens element 10 is the thickness of the lens element along the optical axis, and the second value is the distance between the image-side surface of the lens element and the rear surface of the lens element along the image-side direction along the optical axis, and the unit is mm.
TABLE 9
Table 10 below presents the aspherical coefficients of the corresponding lens surfaces in table 9, where K is a conic coefficient and Ai is a coefficient corresponding to the i-th order higher-order term in the aspherical surface type formula.
Second embodiment
Referring to fig. 3 and 4, the optical imaging system 1 of the second embodiment includes, in order from the object side to the image side: a first lens 10 having a positive power, a second lens 20 having a negative power, a third lens 30 having a positive power, a fourth lens 40 having a power, and a filter 50.
The object-side surface S1 of the first lens element 10 is convex at a paraxial region, and the image-side surface S2 of the first lens element 10 is convex at a paraxial region; the object-side surface S3 of the second lens element 20 is convex at the paraxial region, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the object-side surface S5 of the third lens element 30 is convex at the paraxial region, and the image-side surface S6 of the third lens element 30 is concave at the paraxial region; the object-side surface S7 of the fourth lens element 40 is convex at the paraxial region, and the image-side surface S8 of the fourth lens element 40 is concave at the paraxial region.
Fig. 4 is a longitudinal spherical aberration graph, an astigmatism graph and a distortion graph of the optical imaging system 1 in the second embodiment from left to right respectively; in the longitudinal spherical aberration curve chart, the abscissa represents the distance from the imaging surface to the intersection point of the light ray and the optical axis, the ordinate is the normalized field of view, the unit is mm, and the focus deviation of each field of view is within +/-0.05 mm, which indicates that the spherical aberration of the optical imaging system 1 is small; in the astigmatism graph, the abscissa represents the focus offset, the ordinate represents the image height, and the unit is mm, and it can be seen from the graph that the focus deviation of each field of view of the sagittal image surface S and the meridional image surface T is within ± 0.05mm, which indicates that the field curvature aberration of the optical imaging system 1 is small; in a distortion graph, the abscissa represents distortion, and the ordinate represents image height in mm, and the distortion rate of each field of view is within a reasonable range, wherein an astigmatism graph and a distortion graph are data with the reference wavelength of 555 nm; therefore, as can be seen from fig. 4, various aberrations of the optical imaging system 1 in the second embodiment are small, so that the imaging quality is high and the imaging effect is excellent.
In the second embodiment, the optical focal length FL of the optical imaging system 1 is 11.7696mm, the f-number FNO is 2.8024, the imaging plane S11YI is 0.7497, the distance TTL from the object-side surface of the first lens 10 to the imaging plane on the optical axis is 12.76mm, and the maximum incident angle FOV of the optical imaging system 1 is 19.45 deg.
The reference wavelength of the focal length of the lens in the second embodiment is 555nm, and the reference wavelengths of the abbe number and the refractive index are 587.56nm, and the optical imaging system 1 in the second embodiment satisfies the conditions in table 11 below, and the parameters of the new optical imaging system 1 are given in table 11, and the definitions of the parameters can be obtained from the first embodiment, which is not repeated herein.
TABLE 11
Table 12 below presents the aspherical coefficients of the corresponding lens surfaces in table 11, where K is a conic coefficient and Ai is a coefficient corresponding to the i-th order higher-order term in the aspherical surface type formula.
TABLE 12
Third embodiment
Referring to fig. 5 and 6, the optical imaging system 1 of the third embodiment includes, in order from the object side to the image side: a first lens 10 having a positive power, a second lens 20 having a negative power, a third lens 30 having a positive power, a fourth lens 40 having a power, and a filter 50.
The object-side surface S1 of the first lens element 10 is convex at a paraxial region, and the image-side surface S2 of the first lens element 10 is convex at a paraxial region; the object-side surface S3 of the second lens element 20 is convex at the paraxial region, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the object-side surface S5 of the third lens element 30 is convex at the paraxial region, and the image-side surface S6 of the third lens element 30 is concave at the paraxial region; the object-side surface S7 of the fourth lens element 40 is convex at the paraxial region, and the image-side surface S8 of the fourth lens element 40 is concave at the paraxial region.
Fig. 6 is a graph of longitudinal spherical aberration, astigmatism and distortion of the optical imaging system 1 in the third embodiment from left to right; in the longitudinal spherical aberration curve chart, the abscissa represents the distance from the imaging surface to the intersection point of the light ray and the optical axis, the ordinate is the normalized field of view, the unit is mm, and the focus deviation of each field of view is within +/-0.05 mm, which indicates that the spherical aberration of the optical imaging system 1 is small; in the astigmatism graph, the abscissa represents the focus offset, the ordinate represents the image height, and the unit is mm, and it can be seen from the graph that the focus deviation of each field of view of the sagittal image surface S and the meridional image surface T is within ± 0.05mm, which indicates that the field curvature aberration of the optical imaging system 1 is small; in a distortion graph, the abscissa represents distortion, and the ordinate represents image height in mm, and the distortion rate of each field of view is within a reasonable range, wherein an astigmatism graph and a distortion graph are data with the reference wavelength of 555 nm; therefore, as can be seen from fig. 6, various aberrations of the optical imaging system 1 in the third embodiment are small, so that the imaging quality is high and the imaging effect is excellent.
In the third embodiment, the optical focal length FL of the optical imaging system 1 is 11.77mm, the f-number FNO is 1.6667, the imaging plane S11YI is 0.417, the distance TTL on the optical axis from the object-side surface of the first lens 10 to the imaging plane is 12.708mm, and the maximum incident angle FOV of the optical imaging system 1 is 19.49 deg.
The reference wavelength of the focal length of the lens in the third embodiment is 555nm, and the reference wavelengths of the abbe number and the refractive index are 587.56nm, and the optical imaging system 1 in the third embodiment satisfies the conditions of table 13 below, and the parameters of the new optical imaging system 1 are given in table 13, and the definitions of the parameters can be obtained from the first embodiment, which is not repeated herein.
Watch 13
Table 14 below presents the aspherical coefficients of the corresponding lens surfaces in table 13, where K is a conic coefficient and Ai is a coefficient corresponding to the i-th order higher-order term in the aspherical surface type formula.
TABLE 14
Fourth embodiment
Referring to fig. 7 and 8, the optical imaging system 1 of the fourth embodiment, in order from the object side to the image side, comprises: a first lens 10 having a positive power, a second lens 20 having a negative power, a third lens 30 having a positive power, a fourth lens 40 having a power, and a filter 50.
The object-side surface S1 of the first lens element 10 is convex at a paraxial region, and the image-side surface S2 of the first lens element 10 is convex at a paraxial region; the object-side surface S3 of the second lens element 20 is convex at the paraxial region, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the object-side surface S5 of the third lens element 30 is convex at the paraxial region, and the image-side surface S6 of the third lens element 30 is convex at the paraxial region; the object-side surface S7 of the fourth lens element 40 is convex at the paraxial region, and the image-side surface S8 of the fourth lens element 40 is concave at the paraxial region.
Fig. 8 is a graph of longitudinal spherical aberration, an astigmatism and a distortion plot of the optical imaging system 1 in the fourth embodiment from left to right, respectively; in the longitudinal spherical aberration curve chart, the abscissa represents the distance from the imaging surface to the intersection point of the light ray and the optical axis, the ordinate is the normalized field of view, the unit is mm, and the focus deviation of each field of view is within +/-0.05 mm, which indicates that the spherical aberration of the optical imaging system 1 is small; in the astigmatism graph, the abscissa represents the focus offset, the ordinate represents the image height, and the unit is mm, and it can be seen from the graph that the focus deviation of each field of view of the sagittal image surface S and the meridional image surface T is within ± 0.05mm, which indicates that the field curvature aberration of the optical imaging system 1 is small; in a distortion graph, the abscissa represents distortion, and the ordinate represents image height in mm, and the distortion rate of each field of view is within a reasonable range, wherein an astigmatism graph and a distortion graph are data with the reference wavelength of 555 nm; therefore, as can be seen from fig. 8, various aberrations of the optical imaging system 1 in the fourth embodiment are small, so that the imaging quality is high and the imaging effect is excellent.
In the fourth embodiment, the optical focal length FL of the optical imaging system 1 is 11.77, the f-number FNO is 1.6667, the imaging plane S11YI is 0.462, the distance TTL on the optical axis from the object-side surface of the first lens 10 to the imaging plane is 12.708mm, and the maximum incident angle FOV of the optical imaging system 1 is 19.53 deg.
The reference wavelength of the focal length of the lens in the fourth embodiment is 555nm, the reference wavelength of the abbe number and the refractive index is 587.56nm, and the optical imaging system 1 in the third embodiment satisfies the conditions of the following table 15, and the parameters of the new optical imaging system 1 are given in table 15, and the definitions of the parameters can be obtained from the first embodiment, which is not repeated herein.
Watch 15
Table 16 below presents the aspherical coefficients of the corresponding lens surfaces in table 15, where K is a conic coefficient and Ai is a coefficient corresponding to the i-th order higher-order term in the aspherical surface type formula.
TABLE 16
Fifth embodiment
Referring to fig. 9 and 10, the optical imaging system 1 of the fifth embodiment, in order from the object side to the image side, comprises: a first lens 10 having a positive power, a second lens 20 having a negative power, a third lens 30 having a positive power, a fourth lens 40 having a power, and a filter 50.
The object-side surface S1 of the first lens element 10 is convex at a paraxial region, and the image-side surface S2 of the first lens element 10 is convex at a paraxial region; the object-side surface S3 of the second lens element 20 is convex at the paraxial region, and the image-side surface S4 of the second lens element 20 is concave at the paraxial region; the object-side surface S5 of the third lens element 30 is convex at the paraxial region, and the image-side surface S6 of the third lens element 30 is concave at the paraxial region; the object-side surface S7 of the fourth lens element 40 is convex at the paraxial region, and the image-side surface S8 of the fourth lens element 40 is concave at the paraxial region.
Fig. 10 is a graph of longitudinal spherical aberration, astigmatism and distortion of the optical imaging system 1 in the fifth embodiment from left to right, respectively; in the longitudinal spherical aberration curve chart, the abscissa represents the distance from the imaging surface to the intersection point of the light ray and the optical axis, the ordinate is the normalized field of view, the unit is mm, and the focus deviation of each field of view is within +/-0.05 mm, which indicates that the spherical aberration of the optical imaging system 1 is small; in the astigmatism graph, the abscissa represents the focus offset, the ordinate represents the image height, and the unit is mm, and it can be seen from the graph that the focus deviation of each field of view of the sagittal image surface S and the meridional image surface T is within ± 0.05mm, which indicates that the field curvature aberration of the optical imaging system 1 is small; in a distortion graph, the abscissa represents distortion, and the ordinate represents image height in mm, and the distortion rate of each field of view is within a reasonable range, wherein an astigmatism graph and a distortion graph are data with the reference wavelength of 555 nm; therefore, as can be seen from fig. 10, various aberrations of the optical imaging system 1 in the fifth embodiment are small, so that the imaging quality is high and the imaging effect is excellent.
In the fifth embodiment, the optical focal length FL of the optical imaging system 1 is 11.77mm, the f-number FNO is 2.8023, the imaging plane S11YI is 0.7597, the distance TTL on the optical axis from the object image plane to the imaging plane of the first lens 10 is 11.1003, and the maximum incident angle FOV of the optical imaging system 1 is 19.5 deg.
The reference wavelength of the focal length of the lens in the fifth embodiment is 555nm, the reference wavelength of the abbe number and the refractive index is 587.56nm, and the optical imaging system 1 in the third embodiment satisfies the conditions in table 17 below, and the parameters of the new optical imaging system 1 are given in table 17, and the definitions of the parameters can be obtained from the first embodiment, which is not repeated herein.
TABLE 17
Table 18 below presents the aspherical coefficients of the corresponding lens surfaces in table 17, where K is a conic coefficient and Ai is a coefficient corresponding to the i-th order higher-order term in the aspherical surface type formula.
Watch 18
An image capturing module according to an embodiment of the present invention includes: the optical imaging system 1 and the photosensitive chip are arranged on the image side of the optical imaging system, and have good imaging quality.
An embodiment of the present invention further provides an electronic device, including: the shell and the above-mentioned module of getting for instance, get for instance the module and install on the shell, electronic equipment can possess good camera performance.
The electronic devices include, but are not limited to, smart phones, smart watches, smart glasses, electronic book readers, vehicle-mounted camera devices, monitoring devices, drones, medical devices (such as endoscopes), tablet computers, biometric devices (such as fingerprint recognition devices or through hole recognition devices), PDAs (Personal assistants), and the like.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An optical imaging system, comprising, in order from an object side to an image side:
a first lens element having a positive optical power, an object-side surface of the first lens element being convex at a paraxial region, an image-side surface of the first lens element being convex at a paraxial region;
a second lens having a negative optical power, an image side surface of the second lens being concave at a paraxial region;
a third lens having positive optical power, an object side surface of the third lens being convex at a paraxial region;
a fourth lens having an optical power;
the optical imaging system satisfies the following conditional expression:
-5.0<L1R2/L1R1<-2.0；
wherein L1R1 is a radius of curvature of the object-side surface of the first lens element at the optical axis, and L1R2 is a radius of curvature of the image-side surface of the first lens element at the optical axis.
2. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
1.0<YI/L3R1YI<1.3；
wherein YI is half of the height of the maximum field angle corresponding image of the optical imaging system; L3R1YI is the maximum effective half aperture of the object side surface of the third lens.
3. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
80.0<RI/BFL<220.0；
wherein, RI is the ratio of the illumination of the edge field and the illumination of the central field on the imaging surface, and BFL is the back focus.
4. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
1.5441<nd<1.6632
19.4<vd<56.1；
and nd is the refractive index of any lens in the optical imaging system, vd is the Abbe number of any lens in the optical imaging system, and the reference wavelengths of the refractive index and the Abbe number of the lens are 587.56 nm.
5. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
0.5<TTL/(YI*EPD)<1.5；
wherein, TTL is a distance from an object-side surface of the first lens element to an image plane on an optical axis, YI is a half of a maximum field angle of the optical imaging system corresponding to a high image, and EPD is an entrance pupil diameter of the optical imaging system.
6. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
0.5<FL/FOV<0.7；
wherein FL is the optical focal length of the optical imaging system, and FOV is the maximum field angle of the optical imaging system.
7. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
10.0<EPD*Fno<15.0；
and EPD is the diameter of an entrance pupil of the optical imaging system, and Fno is the f-number of the optical imaging system.
8. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following conditional expression:
0.7<FL/TTL<1.2；
wherein, FL is the optical focal length of the optical imaging system, and TTL is the distance on the optical axis from the object-side surface of the first lens element to the imaging surface.
9. An image capturing module, comprising: the optical imaging system and the photosensitive chip of any one of claims 1 to 8, the photosensitive chip being disposed on an image side of the optical imaging system.
10. An electronic device, comprising: the image capturing module of claim 9, and a housing on which the image capturing module is mounted.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000401A (en) * | 2006-12-27 | 2007-07-18 | 中国科学院上海技术物理研究所 | Optical system of photographic field lens |
| CN101055345A (en) * | 2006-04-13 | 2007-10-17 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal with the same |
| JP2008032991A (en) * | 2006-07-28 | 2008-02-14 | Fujinon Corp | Reference lens for interferometer |
| CN101131464A (en) * | 2006-08-21 | 2008-02-27 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal |
| CN101276041A (en) * | 2007-03-28 | 2008-10-01 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal |
| CN101344632A (en) * | 2007-07-10 | 2009-01-14 | 富士能株式会社 | Imaging lens, camera module and imaging apparatus |
| CN101373257A (en) * | 2007-08-22 | 2009-02-25 | 鸿富锦精密工业（深圳）有限公司 | Imaging lens |
| CN101377564A (en) * | 2007-08-29 | 2009-03-04 | 柯尼卡美能达精密光学株式会社 | Image pickup lens |
| CN102141677A (en) * | 2010-02-01 | 2011-08-03 | 奥林巴斯株式会社 | Microscope objective lens |
| JP2012068292A (en) * | 2010-09-21 | 2012-04-05 | Konica Minolta Opto Inc | Imaging lens, imaging apparatus and portable terminal |
| CN102841430A (en) * | 2011-06-22 | 2012-12-26 | 大立光电股份有限公司 | Optical image lens assembly |
-
2021
- 2021-09-15 CN CN202111079062.2A patent/CN113759510A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055345A (en) * | 2006-04-13 | 2007-10-17 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal with the same |
| JP2008032991A (en) * | 2006-07-28 | 2008-02-14 | Fujinon Corp | Reference lens for interferometer |
| CN101131464A (en) * | 2006-08-21 | 2008-02-27 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal |
| CN101000401A (en) * | 2006-12-27 | 2007-07-18 | 中国科学院上海技术物理研究所 | Optical system of photographic field lens |
| CN101276041A (en) * | 2007-03-28 | 2008-10-01 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup apparatus and mobile terminal |
| CN101344632A (en) * | 2007-07-10 | 2009-01-14 | 富士能株式会社 | Imaging lens, camera module and imaging apparatus |
| CN101373257A (en) * | 2007-08-22 | 2009-02-25 | 鸿富锦精密工业（深圳）有限公司 | Imaging lens |
| CN101377564A (en) * | 2007-08-29 | 2009-03-04 | 柯尼卡美能达精密光学株式会社 | Image pickup lens |
| CN102141677A (en) * | 2010-02-01 | 2011-08-03 | 奥林巴斯株式会社 | Microscope objective lens |
| JP2012068292A (en) * | 2010-09-21 | 2012-04-05 | Konica Minolta Opto Inc | Imaging lens, imaging apparatus and portable terminal |
| CN102841430A (en) * | 2011-06-22 | 2012-12-26 | 大立光电股份有限公司 | Optical image lens assembly |
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