CN109856783B - Optical imaging lens - Google Patents
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- CN109856783B CN109856783B CN201910131853.1A CN201910131853A CN109856783B CN 109856783 B CN109856783 B CN 109856783B CN 201910131853 A CN201910131853 A CN 201910131853A CN 109856783 B CN109856783 B CN 109856783B
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003384 imaging method Methods 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 16
- 230000014509 gene expression Effects 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004297 night vision Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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Abstract
The invention relates to the technical field of lenses, in particular to an optical imaging lens. The invention discloses a fisheye lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a seventh lens from an object side to an image side along an optical axis; the first lens is a convex-concave lens with positive refractive index; the second lens is a concave lens with negative refractive index; the third lens is a convex lens with positive refractive index; the fourth lens is a convex lens with positive refractive index; the fifth lens is a convex lens with positive refractive index; the sixth lens is a concave lens with negative refractive index; the seventh lens is a convex-concave lens with negative refractive index; the eighth lens is a convex lens with positive refractive index; the ninth lens is a concave-convex lens with negative refractive index. The invention has the advantages of long focal length, no distortion, high resolution and large light transmission.
Description
Technical Field
The invention belongs to the technical field of lenses, and particularly relates to an optical imaging lens.
Background
Road monitoring is a special device used for traffic police to take pictures or video on roads for evidence collection. Because of the long distance and the importance of evidence, the optical imaging lens is required to have long focal length, no distortion and high resolution so that the acquired evidence is more complete and clear, and powerful evidence is provided for law enforcement, but the existing optical imaging lens used on the road cannot simultaneously meet the requirements of long focal length, no distortion and high resolution. In addition, since various outdoor environments are used for road monitoring, the optical imaging lens is required to have larger light transmission in order to be used in environments with poorer light.
Disclosure of Invention
The present invention is directed to an optical imaging lens with long focal length, no distortion, high resolution and large light transmission, which solves the above problems.
In order to achieve the above object, the present invention discloses an optical imaging lens, which includes, in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens along an optical axis; the first lens element to the ninth lens element each comprise an object side surface facing the object side and passing the imaging light and an image side surface facing the image side and passing the imaging light;
the first lens has positive refractive index, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
the second lens has negative refractive index, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a concave surface;
the third lens has positive refractive index, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface;
the fourth lens has positive refractive index, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface;
the fifth lens has positive refractive index, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface;
the sixth lens has negative refractive power, the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a concave surface;
the seventh lens has negative refractive power, the object side surface of the seventh lens is a convex surface, and the image side surface of the seventh lens is a concave surface;
the eighth lens element has positive refractive index, wherein the object-side surface of the eighth lens element is convex, and the image-side surface of the eighth lens element is convex;
the ninth lens has negative refractive power, the object side surface of the ninth lens is a concave surface, and the image side surface of the ninth lens is a convex surface;
the optical imaging lens has only nine lenses with refractive index.
Further, the lens system further comprises a diaphragm, wherein the diaphragm is arranged between the fourth lens and the fifth lens.
Further, the optical imaging lens also satisfies: gstop >5.5mm, wherein Gstop is the sum of the air gap of the stop and the fourth and fifth lenses on the optical axis.
Further, the optical imaging lens also satisfies: D12/R12 is less than 0.5, wherein D12 is the light transmission caliber of the first lens, and R12 is the curvature radius of the image side surface of the first lens.
Further, the first lens to the ninth lens are made of glass materials.
Further, the optical imaging lens also satisfies: nd1 > 1.6, wherein nd1 is the refractive index of the first lens at d-line.
Further, the image side surface of the second lens element and the object side surface of the third lens element are bonded to each other, and the following requirements are satisfied: 90< R23<115, wherein R23 is the radius of curvature of the cemented surface of the second lens and the third lens.
Further, the image side surface of the seventh lens element and the object side surface of the eighth lens element are cemented together.
Further, the optical imaging lens satisfies: t1<6.1mm, T2<2.65mm,9.3mm < T23<9.8mm, T7<7.6mm,13.2mm < T78<17.6mm, wherein T1 is the thickness of the first lens on the optical axis, T2 is the thickness of the second lens on the optical axis, T23 is the sum of the thicknesses of the second and third lenses on the optical axis, T7 is the thickness of the seventh lens on the optical axis, and T78 is the sum of the thicknesses of the seventh and eighth lenses on the optical axis.
Further, the optical imaging lens satisfies: ALG <34.5mm, ALT <66.2mm, and ALT/ALG <2.75mm, where ALG is the sum of the air gaps of the first lens to the ninth lens on the optical axis and ALT is the sum of the thicknesses of the nine lenses of the first lens to the ninth lens on the optical axis.
The beneficial technical effects of the invention are as follows:
the invention adopts nine lenses, and has the advantages of small distortion (less than 1 percent), good resolution (the optical transfer function can reach 200lp/mm more than 0.3), long focal length and large light transmission by correspondingly designing each lens.
In addition, the invention switches night vision mode under the condition of visible light focusing, the night vision effect is good, and the infrared offset (IR shift) of (0.8/0.5 ICR) is less than 15um.
The nine lenses of the invention use glass lenses, and the back focus variation is small under the conditions of high temperature and low temperature.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of curvature of field and distortion in accordance with a first embodiment of the present invention;
fig. 3 is a view of a visible light MTF chart according to a first embodiment of the present invention;
FIG. 4 is a 850nm infrared MTF diagram of a first embodiment of the present invention;
FIG. 5 is a graph of visible defocus of a first embodiment of the present invention;
FIG. 6 is a graph of an infrared defocus at 850nm of a first embodiment of the present invention;
FIG. 7 is a schematic diagram of a second embodiment of the present invention;
FIG. 8 is a diagram illustrating curvature of field and distortion in accordance with a second embodiment of the present invention;
fig. 9 is a visible light MTF diagram of a second embodiment of the present invention;
FIG. 10 is a 850nm infrared MTF diagram of a second embodiment of the present invention;
FIG. 11 is a graph of visible defocus of a second embodiment of the present invention;
FIG. 12 is a graph of 850nm infrared defocus of a second embodiment of the present invention;
FIG. 13 is a schematic diagram of a third embodiment of the present invention;
FIG. 14 is a diagram showing curvature of field and distortion in accordance with a third embodiment of the present invention;
fig. 15 is a view of a visible light MTF of the third embodiment of the present invention;
FIG. 16 is a 850nm infrared MTF plot for example III of the present invention;
FIG. 17 is a graph of visible defocus for a third embodiment of the present invention;
FIG. 18 is a graph of 850nm infrared defocus for a third embodiment of the present invention;
FIG. 19 is a schematic view of a fourth embodiment of the present invention;
FIG. 20 is a diagram showing curvature of field and distortion in accordance with a fourth embodiment of the present invention;
fig. 21 is a view of a visible light MTF diagram according to a fourth embodiment of the present invention;
FIG. 22 is a 850nm infrared MTF diagram for example IV of the present invention;
FIG. 23 is a graph showing the defocus of visible light of the fourth embodiment of the present invention;
FIG. 24 is a graph of 850nm infrared defocus of a fourth embodiment of the present invention;
fig. 25 is a numerical table of respective expressions of four embodiments of the present invention.
Detailed Description
The invention will now be further described with reference to the drawings and detailed description.
The term "a lens having a positive refractive index (or negative refractive index)" means that the paraxial refractive index of the lens calculated by Gaussian optics theory is positive (or negative). The term "object side (or image side) of a lens" is defined as the specific range of imaging light rays passing through the lens surface. The surface roughness determination of the lens can be performed by a determination method by a person of ordinary skill in the art, that is, by a sign of a radius of curvature (abbreviated as R value). The R value may be commonly used in optical design software, such as Zemax or CodeV. The R value is also commonly found in the lens data sheet (lens data sheet) of optical design software. When the R value is positive, the object side surface is judged to be convex; when the R value is negative, the object side surface is judged to be a concave surface. On the contrary, when the R value is positive, the image side surface is judged to be concave; when the R value is negative, the image side surface is determined to be convex.
The invention discloses an optical imaging lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from an object side to an image side along an optical axis; the first lens element to the ninth lens element each comprise an object side surface facing the object side and passing the imaging light and an image side surface facing the image side and passing the imaging light;
the first lens has positive refractive index, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
the second lens has negative refractive index, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a concave surface;
the third lens has positive refractive index, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface;
the fourth lens has positive refractive index, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface;
the fifth lens has positive refractive index, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface;
the sixth lens has negative refractive power, the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a concave surface;
the seventh lens has negative refractive power, the object side surface of the seventh lens is a convex surface, and the image side surface of the seventh lens is a concave surface;
the eighth lens element has positive refractive index, wherein the object-side surface of the eighth lens element is convex, and the image-side surface of the eighth lens element is convex;
the ninth lens has negative refractive power, the object side surface of the ninth lens is a concave surface, and the image side surface of the ninth lens is a convex surface;
the optical imaging lens has only nine lenses with refractive index. Nine lenses are adopted, and through corresponding design of each lens, the lens has the advantages of small distortion, good resolving power, long focal length and large light transmission.
Preferably, the lens assembly further comprises a diaphragm, and the diaphragm is arranged between the fourth lens and the fifth lens.
Preferably, the optical imaging lens further satisfies: gstop >5.5mm, wherein Gstop is the sum of the air gaps of the diaphragm, the fourth lens and the fifth lens on the optical axis, and larger light transmission is further realized.
Preferably, the optical imaging lens further satisfies: D12/R12 is less than 0.5, wherein D12 is the light transmission caliber of the first lens, R12 is the curvature radius of the image side surface of the first lens, and the distortion is further optimized.
Preferably, the first lens to the ninth lens are made of glass materials, and the back focus variation is small under the high-temperature and low-temperature conditions.
Preferably, the optical imaging lens further satisfies: nd1 is larger than 1.6, wherein nd1 is the refractive index of the first lens at d line, and the optical imaging lens has smaller front end caliber, stable material chemical property and relatively low price by adopting a high refractive index material.
Preferably, the image side surface of the second lens element and the object side surface of the third lens element are bonded to each other, and the following conditions are satisfied: 90mm < R23<115mm, wherein R23 is the radius of curvature of the bonding surface of the second lens and the third lens, which is favorable for achromatism.
Preferably, the image side surface of the seventh lens element and the object side surface of the eighth lens element are cemented together, and chromatic aberration is further eliminated by combining the second lens element and the third lens element.
Preferably, the optical imaging lens satisfies: t1<6.1mm, T2<2.65mm,9.3mm < T23<9.8mm, T7<7.6mm,13.2mm < T78<17.6mm, wherein T1 is the thickness of the first lens on the optical axis, T2 is the thickness of the second lens on the optical axis, T23 is the sum of the thicknesses of the second and third lenses on the optical axis, T7 is the thickness of the seventh lens on the optical axis, and T78 is the sum of the thicknesses of the seventh and eighth lenses on the optical axis. The lens length is beneficial to shortening, and the lens is easy to process and manufacture.
Preferably, the optical imaging lens satisfies: ALG <34.5mm, ALT <66.2mm, and ALT/ALG <2.75, where ALG is the sum of the air gaps of the first lens to the ninth lens on the optical axis, and ALT is the sum of the thicknesses of the nine lenses of the first lens to the ninth lens on the optical axis. The length of the optical imaging lens is controlled, and the optical imaging lens is easy to process and assemble.
The optical imaging lens of the present invention will be described in detail with specific examples.
Example 1
As shown in fig. 1, the present invention discloses an optical imaging lens, which sequentially comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a diaphragm 10, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9 and an imaging surface 110 along an optical axis I from an object side A1 to an image side A2; the first lens element 1 to the ninth lens element 9 respectively comprise an object side surface facing the object side A1 and allowing the imaging light to pass therethrough and an image side surface facing the image side A2 and allowing the imaging light to pass therethrough;
the first lens element 1 has a positive refractive power, wherein an object-side surface 11 of the first lens element 1 is convex, and an image-side surface 12 of the first lens element 1 is concave;
the second lens element 2 has a negative refractive power, wherein an object-side surface 21 of the second lens element 2 is concave, and an image-side surface 22 of the second lens element 2 is concave;
the third lens element 3 has positive refractive power, wherein an object-side surface 31 of the third lens element 3 is convex, and an image-side surface 32 of the third lens element 3 is convex;
the fourth lens element 4 has a positive refractive power, wherein an object-side surface 41 of the fourth lens element 4 is convex, and an image-side surface 42 of the fourth lens element 4 is convex;
the fifth lens element 5 has a positive refractive power, wherein an object-side surface 51 of the fifth lens element 5 is convex, and an image-side surface 52 of the fifth lens element 5 is convex;
the sixth lens element 6 has a negative refractive power, wherein an object-side surface 61 of the sixth lens element 6 is concave, and an image-side surface 62 of the sixth lens element 6 is concave;
the seventh lens element 7 with negative refractive power has a convex object-side surface 71 and a concave image-side surface 72;
the eighth lens element 8 has a positive refractive power, wherein an object-side surface 81 of the eighth lens element 8 is convex, and an image-side surface 82 of the eighth lens element 8 is convex;
the ninth lens element 9 has a negative refractive power, wherein an object-side surface 91 of the ninth lens element 9 is concave, and an image-side surface 92 of the ninth lens element 9 is convex;
in this embodiment, the optical filter 120 is further included, where the optical filter 120 is disposed on the optical axis I between the ninth lens 9 and the imaging surface 110, and the optical filter 120 may be an infrared filter, but is not limited thereto.
In this embodiment, the optical filter further includes a protective glass 130, where the protective glass 130 is disposed on the optical axis I between the optical filter 120 and the imaging surface 110.
The detailed optical data of this particular example are shown in Table 1-1.
Table 1-1 detailed optical data for example one
| Surface of the body | Radius of curvature/mm | Thickness/mm | Material of material | Refractive index | Coefficient of dispersion | Focal length/mm | |
| OBJ | Object plane | Plane surface | Infinity | ||||
| 11 | First lens | 82.520 | 5.996 | H-LAF50B | 1.772501 | 49.6135 | 267.47 |
| 12 | 132.606 | 4.762 | |||||
| 21 | Second lens | -60.514 | 2.649 | H-ZF4AGT | 1.728254 | 28.3109 | -51.07 |
| 22 | 100.447 | 0 | |||||
| 31 | Third lens | 100.447 | 7.040 | H-BAK5 | 1.560689 | 58.3448 | 90.35 |
| 32 | -100.447 | 0.726 | |||||
| 41 | Fourth lens | 39.726 | 11.000 | FCD1 | 1.496997 | 81.6084 | 62.60 |
| 42 | -132.047 | 3.309 | |||||
| 10 | Diaphragm | Infinity | 2.973 | ||||
| 51 | Fifth lens | 81.436 | 8.579 | H-ZF88 | 1.945958 | 17.9439 | 71.86 |
| 52 | -422.961 | 3.104 | |||||
| 61 | Sixth lens | -58.619 | 3.403 | H-LAK7A | 1.713004 | 53.8681 | -44.31 |
| 62 | 70.861 | 5.579 | |||||
| 71 | Seventh lens | 80.850 | 3.415 | H-ZF13 | 1.784721 | 25.7197 | -52.96 |
| 72 | 27.100 | 0 | |||||
| 81 | Eighth lens | 27.100 | 9.880 | H-ZK50GT | 1.607382 | 56.6670 | 33.67 |
| 82 | -73.095 | 13.671 | |||||
| 91 | Ninth lens | -25.179 | 8.748 | H-F13 | 1.625886 | 35.7138 | -61.29 |
| 92 | -82.086 | 4.606 | |||||
| 121 | Optical filter | Infinity | 0.700 | H-K9L | 1.516797 | 64.2124 | |
| 122 | Infinity | 1.000 | |||||
| 131 | Protective glass | Infinity | 0.500 | H-K9L | 1.516797 | 64.2124 | |
| 132 | Infinity | 18.859 | |||||
| 110 | Imaging surface | Infinity | 0.000 |
The values of other related conditional expressions of this embodiment are shown in fig. 25.
The field curvature and distortion diagram of the embodiment are shown in fig. 2 (a) and (B), and the distortion is small; resolution referring to fig. 3 and 4, it can be seen from the figure that the resolution is good and the resolution is high; visible and infrared 850nm confocal referring to fig. 5 and 6, it can be seen that the visible and infrared confocal is good.
In this particular embodiment, Φ=23 mm, f=99.6 mm; fno=2.8, where Φ is the image plane diameter of the optical imaging lens, f is the focal length of the optical imaging lens, and Fno is the aperture value.
Example two
As shown in fig. 7, in this embodiment, the surface roughness and refractive index of each lens are the same as those of the first embodiment, and only the optical parameters such as the radius of curvature and the lens thickness of each lens surface are different.
The detailed optical data of this particular example are shown in Table 2-1.
Table 2-1 detailed optical data for example two
The values of other related conditional expressions of this embodiment are shown in fig. 25.
The field curvature and distortion diagram of the embodiment are shown in fig. 8 (a) and (B), and the distortion is small; resolution referring to fig. 9 and 10, it can be seen from the figure that the resolution is good and the resolution is high; visible and infrared 850nm confocal referring to fig. 11 and 12, it can be seen that the visible and infrared confocal is good.
In this particular embodiment, Φ=23 mm, f=99.5 mm; fno=2.8.
Example III
As shown in fig. 13, in this embodiment, the surface roughness and refractive index of each lens are the same as those of the first embodiment, and only the optical parameters such as the radius of curvature and the lens thickness of each lens surface are different.
The detailed optical data of this particular example are shown in Table 3-1.
Table 3-1 detailed optical data for example three
The values of other related conditional expressions of this embodiment are shown in fig. 25.
The field curvature and distortion diagram of the embodiment are shown in fig. 14 (a) and (B), and it can be seen that the distortion is small; resolution referring to fig. 15 and 16, it can be seen from the figure that the resolution is good and the resolution is high; visible and infrared 850nm confocal referring to fig. 17 and 18, it can be seen that the visible and infrared confocal is good.
In this particular embodiment, Φ=23 mm, f=99.6 mm; fno=2.8.
Example IV
As shown in fig. 19, in this embodiment, the surface roughness and refractive index of each lens are the same as those of the first embodiment, and only the optical parameters such as the radius of curvature and the lens thickness of each lens surface are different.
The detailed optical data of this particular example are shown in Table 4-1.
Table 4-1 detailed optical data for example four
The values of other related conditional expressions of this embodiment are shown in fig. 25.
The field curvature and distortion diagram of the embodiment are shown in fig. 20 (a) and (B), and it can be seen that the distortion is small; resolution referring to fig. 21 and 22, it can be seen from the figure that the resolution is good and the resolution is high; visible and infrared 850nm confocal referring to fig. 23 and 24, it can be seen that the visible and infrared confocal is good.
In this particular embodiment, Φ=23 mm, f=99.6 mm; fno=2.8.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An optical imaging lens, characterized in that: the optical lens system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens in sequence from an object side to an image side along an optical axis; the first lens element to the ninth lens element each comprise an object side surface facing the object side and passing the imaging light and an image side surface facing the image side and passing the imaging light;
the first lens has positive refractive index, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
the second lens has negative refractive index, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a concave surface;
the third lens has positive refractive index, the object side surface of the third lens is a convex surface, the image side surface of the third lens is a convex surface, and the image side surface of the second lens and the object side surface of the third lens are glued with each other;
the fourth lens has positive refractive index, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface;
the fifth lens has positive refractive index, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface;
the sixth lens has negative refractive power, the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a concave surface;
the seventh lens has negative refractive power, the object side surface of the seventh lens is a convex surface, and the image side surface of the seventh lens is a concave surface;
the eighth lens element has positive refractive index, wherein the object-side surface of the eighth lens element is convex, and the image-side surface of the eighth lens element is convex;
the ninth lens has negative refractive power, the object side surface of the ninth lens is a concave surface, and the image side surface of the ninth lens is a convex surface;
the optical imaging lens has only nine lenses with refractive index.
2. The optical imaging lens of claim 1, wherein: the lens assembly further comprises a diaphragm arranged between the fourth lens and the fifth lens.
3. The optical imaging lens of claim 2, further satisfying: gstop >5.5mm, wherein Gstop is the sum of the air gap of the stop and the fourth and fifth lenses on the optical axis.
4. The optical imaging lens of claim 1, further satisfying: D12/R12 is less than 0.5, wherein D12 is the light transmission caliber of the first lens, and R12 is the curvature radius of the image side surface of the first lens.
5. The optical imaging lens of claim 1, wherein: the first lens to the ninth lens are made of glass materials.
6. The optical imaging lens of claim 1, further satisfying: nd1 > 1.6, wherein nd1 is the refractive index of the first lens at d-line.
7. The optical imaging lens of claim 1, wherein: the image side surface of the seventh lens is glued with the object side surface of the eighth lens.
8. The optical imaging lens of claim 1, wherein the optical imaging lens satisfies: t1<6.1mm, T2<2.65mm,9.3mm < T23<9.8mm, T7<7.6mm,13.2mm < T78<17.6mm, wherein T1 is the thickness of the first lens on the optical axis, T2 is the thickness of the second lens on the optical axis, T23 is the sum of the thicknesses of the second and third lenses on the optical axis, T7 is the thickness of the seventh lens on the optical axis, and T78 is the sum of the thicknesses of the seventh and eighth lenses on the optical axis.
9. The optical imaging lens of claim 1, wherein the optical imaging lens satisfies: ALG <34.5mm, ALT <66.2mm, and ALT/ALG <2.75, where ALG is the sum of the air gaps of the first lens to the ninth lens on the optical axis, and ALT is the sum of the thicknesses of the nine lenses of the first lens to the ninth lens on the optical axis.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI684807B (en) * | 2019-06-14 | 2020-02-11 | 大立光電股份有限公司 | Optical lens system, image capturing unit and electronic device |
| CN110361833B (en) * | 2019-06-17 | 2024-04-19 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| TWI743721B (en) * | 2020-03-04 | 2021-10-21 | 大立光電股份有限公司 | Imaging optical lens assembly, image capturing unit and electronic device |
| CN111766685B (en) * | 2020-09-03 | 2020-11-17 | 常州市瑞泰光电有限公司 | Image pickup optical lens |
| CN111812809B (en) * | 2020-09-03 | 2020-11-27 | 常州市瑞泰光电有限公司 | Image pickup optical lens |
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