CN107167898A - Fish eye lens - Google Patents
Fish eye lens Download PDFInfo
- Publication number
- CN107167898A CN107167898A CN201710518221.1A CN201710518221A CN107167898A CN 107167898 A CN107167898 A CN 107167898A CN 201710518221 A CN201710518221 A CN 201710518221A CN 107167898 A CN107167898 A CN 107167898A
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- Prior art keywords
- lens
- fish eye
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- fish
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Classifications
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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
- G02B13/0045—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 five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
Abstract
The present invention relates to a kind of fish eye lens, including the first lens group, second lens group and diaphragm, first lens group includes the lens of curved month type first towards imaging surface with negative power and concave surface, with the second lens that negative power and its image side surface are concave surface, the 4th lens with positive light coke and its image side surface for the 3rd lens on convex surface and with positive light coke, second lens group include with positive light coke and it is two-sided be convex surface the 5th lens, with positive light coke and it is two-sided be convex surface the 6th lens, with negative power and it is two-sided be concave surface the 7th lens and with positive light coke and it is two-sided be convex surface the 8th lens, first lens, 5th lens, 6th lens, 7th lens are glass spheric glass, 8th lens are Glass aspheric eyeglass.Fish eye lens proposed by the present invention has miniaturization, relatively easily realizes the characteristic of ratio chromatism, correction, and it can match the imager chip of more than 16,000,000 pixels, meet practical application request.
Description
Technical field
The present invention relates to pick-up lens technical field, more particularly to a kind of fish eye lens.
Background technology
In recent years, because fish eye lens has the advantage at ultra-large vision field angle and is widely used in VR (Virtual
Reality, virtual reality) field such as camera, unmanned plane camera, safety monitoring camera and panorama camera, especially in panorama phase
Application in machine, is almost presented the development of explosion type in recent years.This undoubtedly have stimulated to fish-eye great demand.
At present, for panorama camera, in addition to the demand of traditional except to meet pan photo and video recording,
Mostly develop towards the direction of concern VR content productions.New panorama camera is compared with common camera, except to meet
Camera color rendition is accurate, low-light level is not present outside the Fundamentals such as noise, also one important judgment criteria, i.e. camera
Definition, it directly affects the video resolution shot and.The panorama camera of current definition preferably professional application,
Price is all very expensive, and the definition of the panorama camera of some consumer levels can not meet the actual demand of user.
In addition, in order to obtain high-resolution imaging, big wide-angle class fish eye lens must carry out ratio chromatism, correction, but
In the prior art, many fish eye lens manufacturers are in order to reduce cost, using the eyeglass that many plastic cement are aspherical in fish eye lens,
And the species of plastic cement is seldom, therefore correction multiplying power is relatively difficult to realize, and plastic cement is more sensitive to temperature, so that flake mirror
Head is difficult to the occasion for being applied to high temperature or low temperature.
The content of the invention
Based on this, it is an object of the invention to propose a kind of miniaturization, high-resolution, be easier to realize in actual applications
The fish eye lens of ratio chromatism, correction, to meet practical application request.
The present invention proposes a kind of fish eye lens, including the first lens group close to thing side, the second lens close to imaging surface
Group and the diaphragm between first lens group and second lens group, wherein；
First lens group is included with negative power and concave surface towards the curved of imaging surface successively from thing side to imaging surface
Month type first lens, be the second lens of concave surface with negative power and its image side surface, be with positive light coke and its image side surface
3rd lens on convex surface and the 4th lens with positive light coke；
Second lens group from thing side to imaging surface successively include with positive light coke and it is two-sided be the 5th of convex surface
Lens, with positive light coke and it is two-sided be convex surface the 6th lens, with negative power and it is two-sided be the 7th saturating of concave surface
Mirror and with positive light coke and it is two-sided be convex surface the 8th lens, wherein the 6th lens and the 7th lens are constituted
Cemented doublet；
First lens, the 5th lens, the 6th lens, the 7th lens are glass spheric glass,
8th lens are Glass aspheric eyeglass.Fish eye lens of the present invention employs sphere and aspherical lens are combined
Mode, reduces the external diameter of lens system, improves the resolving power of whole group camera lens, reduces distortion and the chief ray angle of emergence
Degree, has taken into full account the angle of visual field and the property taken into account as matter, it is ensured that camera lens has excellent imaging in the case of the big angle of visual field
Quality, so as to reach more than 210 ° of ultra-large vision field angle, it can match the imager chip of more than 16,000,000 pixels.
Compared to prior art, fish eye lens proposed by the present invention, by first lens, the 5th lens, institute
It is glass lens to state the 6th lens, the 7th lens and the 8th lens, can be easier to realize ratio chromatism, school
Just and the occasion for different temperatures, practical application request is met.
Further, the fish eye lens meets conditional：0<f·c12<1,0<f·c22<1 and 0<f·c81<1,
Wherein f is the fish-eye focal length, and c12 is the curvature of the image side surface of first lens, and c22 is second lens
The curvature of image side surface, c81 is the curvature of the thing side of the 8th lens.
Further, the fish eye lens meets conditional：WhereinTo be described fish-eye
Focal power,For the 8th power of lens.
Further, the fish eye lens meets conditional：WhereinFor the 5th lens
Focal power,For the 7th power of lens.
Further, the fish eye lens meets conditional：
Dn5/dt5+dn6/dt6 ＜ 0；
Dn4/dt4+dn5/dt5+dn6/dt6+dn8/dt8 ＜ 2.5；
Wherein dn4/dt4 is the relation that varies with temperature of Refractive Index of Material of the 4th lens, and dn5/dt5 is described the
The relation that the Refractive Index of Material of five lens is varied with temperature, dn6/dt6 becomes for the Refractive Index of Material of the 6th lens with temperature
The relation of change, the relation that dn8/dt8 varies with temperature for the Refractive Index of Material of the 8th lens.
Further, the fish eye lens meets conditional：0.5 ＜ c41/c42 ＜ 2, wherein c41 are the 4th lens
Thing side curvature, c42 for the 4th lens image side surface curvature.
Further, the fish eye lens meets conditional：
30 ＜ Vd6-Vd7＜ 65；
Vd2＞ 55；
Vd8＞ 55；
Wherein Vd2、Vd6、Vd7And Vd8Respectively described second lens, the 6th lens, the 7th lens and
The Abbe number of 8th lens.
Further, the surface configuration of the aspherical lens in the fish eye lens is satisfied by following equations：
Wherein, z is the distance of curved surface and curved surface summit in optical axis direction, and h is distance of the optical axis to curved surface, and c is curved surface top
The curvature of point, K is quadratic surface coefficient, and B, C, D, E, F are respectively quadravalence, six ranks, eight ranks, ten ranks, ten surface of second order coefficients.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the fish-eye structural representation in first embodiment of the invention；
Fig. 2 be first embodiment of the invention in fish eye lens visible waveband MTF curve schematic diagram；
Fig. 3 be first embodiment of the invention in fish eye lens visible waveband lateral chromatic aberration curve map；
Fig. 4 is the fish-eye structural representation in second embodiment of the invention；
Fig. 5 be second embodiment of the invention in fish eye lens visible waveband MTF curve schematic diagram；
Fig. 6 be second embodiment of the invention in fish eye lens visible waveband lateral chromatic aberration curve map；
Fig. 7 is the fish-eye structural representation in third embodiment of the invention；
Fig. 8 be third embodiment of the invention in fish eye lens visible waveband MTF curve schematic diagram；
Fig. 9 be third embodiment of the invention in fish eye lens visible waveband lateral chromatic aberration curve map；
Figure 10 is the fish-eye structural representation in fourth embodiment of the invention；
Figure 11 be fourth embodiment of the invention in fish eye lens visible waveband MTF curve schematic diagram；
Figure 12 be fourth embodiment of the invention in fish eye lens visible waveband lateral chromatic aberration curve map；
Figure 13 is the fish-eye structural representation in fifth embodiment of the invention；
Figure 14 be fifth embodiment of the invention in fish eye lens visible waveband MTF curve schematic diagram；
Figure 15 be fifth embodiment of the invention in fish eye lens visible waveband lateral chromatic aberration curve map.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose that these embodiments are provided be make to the disclosure more it is thorough comprehensively.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the present invention proposes a kind of fish eye lens, include the first lens group 10, the close imaging of close thing side
Second lens group 20 in face and the diaphragm S9 between first lens group 10 and second lens group 20, wherein institute
State the first lens group 10 includes the curved month type first with negative power and concave surface towards imaging surface successively from thing side to imaging surface
Lens L1, with negative power and its image side surface it is the second lens L2 of concave surface, with positive light coke and its image side surface is convex surface
The 3rd lens L3 and the 4th lens L4 with positive light coke；Second lens group 20 is wrapped successively from thing side to imaging surface
Include with positive light coke and it is two-sided be convex surface the 5th lens L5, with positive light coke and it is two-sided be convex surface the 6th lens
L6, with negative power and it is two-sided be concave surface the 7th lens L7 and with positive light coke and it is two-sided be the 8th of convex surface
Lens L8, wherein the 6th lens L6 and the 7th lens L7 constitutes cemented doublet, the first lens L1, the described 5th
Lens L5, the 6th lens L6, the 7th lens L7 are glass spheric glass, and the 8th lens L8 is glass aspheric
Face eyeglass.
Compared to prior art, fish eye lens proposed by the present invention, due to the first lens L1, the 5th lens
L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8 are glass lens, can be easier to realize
Ratio chromatism, is corrected and the occasion for different temperatures, meets practical application request.
Further, the fish eye lens meets conditional：0<f·c12<1,0<f·c22<1 and 0<f·c81<1,
Wherein f is the fish-eye focal length, and c12 is the image side surface S2 of the first lens L1 curvature, and c22 is described second saturating
Mirror L2 image side surface S4 curvature, c81 is the thing side S15 of the 8th lens L8 curvature.
At the same time, the fish eye lens meets conditional：WhereinTo be described fish-eye
Focal power,For the focal power of the 8th lens L8.
In addition, the fish eye lens meets conditional：WhereinFor the light of the 5th lens L5
Focal power,For the focal power of the 7th lens L7.
Further, the fish eye lens meets conditional：
Dn5/dt5+dn6/dt6 ＜ 0；
Dn4/dt4+dn5/dt5+dn6/dt6+dn8/dt8 ＜ 2.5；
The relation that wherein dn4/dt4 varies with temperature for the Refractive Index of Material of the 4th lens L4, dn5/dt5 is described
The relation that 5th lens L5 Refractive Index of Material is varied with temperature, dn6/dt6 for the 6th lens L6 Refractive Index of Material with
The relation of temperature change, the relation that dn8/dt8 varies with temperature for the Refractive Index of Material of the 8th lens L8.
Further, the fish eye lens meets conditional：0.5 ＜ c41/c42 ＜ 2, wherein c41 are the 4th lens
L4 thing side S7 curvature, c42 is the image side surface S8 of the 4th lens L4 curvature.
Further, the fish eye lens meets conditional：
30 ＜ Vd6-Vd7＜ 65；
Vd2＞ 55；
Vd8＞ 55；
Wherein Vd2、Vd6、Vd7And Vd8Respectively described second lens L2, the 6th lens L6, the 7th lens
L7 and the 8th lens L8 Abbe number.
Further, the surface configuration of the aspherical lens in the fish eye lens is satisfied by following equations：
Wherein, z is the distance of curved surface and curved surface summit in optical axis direction, and h is distance of the optical axis to curved surface, and c is curved surface top
The curvature of point, K is quadratic surface coefficient, and B, C, D, E, F are respectively quadravalence, six ranks, eight ranks, ten ranks, ten surface of second order coefficients.
In following different embodiment, the curve form of each lens, radius of curvature and material in the fish eye lens
It is different etc. parameter, design parameter referring to each embodiment parameter list.
Embodiment 1
The fish-eye structure chart of the present embodiment, as shown in Figure 1.The fish-eye MTF curve figure and transverse direction
Chromatic curve figure difference is as shown in FIG. 2 and 3.
Specifically, the fish-eye design parameter is as shown in table 1-1：
Table 1-1
4th lens of the present embodiment, the aspherical parameter of the 8th lens are as shown in table 1-2：
Table 1-2
In the present embodiment, the fish-eye system focal length f is 1.347mm, and F-number F# is 2.24, the θ of the angle of visual field 2
For 210 °, system overall length TLFor 19mm.
Embodiment 2
The fish-eye structure chart of the present embodiment, as shown in figure 4, fish-eye second lens, in the present embodiment
The curved surface concaveconvex shape of three lens and the 4th lens is different from the fish eye lens structure in first embodiment, and the phase of each eyeglass
Related parameter has differences.The fish-eye MTF curve figure and lateral chromatic aberration curve map difference are as shown in figs.5 and 6.
Specifically, the fish-eye design parameter is as shown in table 2-1：
Table 2-1
4th lens of the present embodiment, the aspherical parameter of the 8th lens are as shown in table 2-2：
Table 2-2
In the present embodiment, the fish-eye system focal length f is 1.319mm, and F-number F# is 2.19, the θ of the angle of visual field 2
For 210 °, system overall length TLFor 19mm.
Embodiment 3
The fish-eye structure chart of the present embodiment, as shown in fig. 7, each lens shape of fish eye lens and in the present embodiment
Fish eye lens in one embodiment is more or less the same, and difference is that the relevant parameter of each eyeglass of the present embodiment fish eye lens is deposited
In difference.The fish-eye MTF curve figure and lateral chromatic aberration curve map difference are as shown in FIG. 8 and 9.
Specifically, the fish-eye design parameter is as shown in table 3-1：
Table 3-1
4th lens of the present embodiment, the aspherical parameter of the 8th lens are as shown in table 3-2：
Table 3-2
In the present embodiment, the fish-eye system focal length f is 1.311mm, and F-number F# is 2.24, the θ of the angle of visual field 2
For 210 °, system overall length TLFor 19mm.
Embodiment 4
The fish-eye structure chart of the present embodiment, as shown in Figure 10, in the present embodiment each lens shape of fish eye lens with
Fish eye lens in first embodiment is more or less the same, and difference is the related ginseng of each fish-eye eyeglass of the present embodiment
Number has differences.The fish-eye MTF curve figure and lateral chromatic aberration curve map difference are as shown in figs. 11 and 12.
Specifically, the fish-eye design parameter is as shown in table 4-1：
Table 4-1
4th lens of the present embodiment, the aspherical parameter of the 8th lens are as shown in table 4-2：
Table 4-2
In the present embodiment, the fish-eye system focal length f is 1.340mm, and F-number F# is 2.24, the θ of the angle of visual field 2
For 210 °, system overall length TLFor 19mm.
Embodiment 5
The fish-eye structure chart of the present embodiment, as shown in figure 13, fish-eye second lens, in the present embodiment
Three lens, the 4th lens curved surface concaveconvex shape it is different from the fish eye lens in first embodiment, and the related ginseng of each eyeglass
Number has differences.The fish-eye MTF curve figure and lateral chromatic aberration curve map are respectively as shown in Figure 14 and Figure 15.
Specifically, the fish-eye design parameter is as shown in Table 5-1：
Table 5-1
The aspherical parameter of 8th lens of the present embodiment is as shown in table 5-2：
Table 5-2
In the present embodiment, the fish-eye system focal length f is 1.326mm, and F-number F# is 2.21, the θ of the angle of visual field 2
For 210 °, system overall length TLFor 19mm.
In addition, table 6 lists above-mentioned 5 embodiments and each self-corresponding optical characteristics, including system focal length f, F-number
F#, the θ of the angle of visual field 2 and system overall length TLAnd numerical value corresponding with above each conditional.
Table 6
In summary, fish eye lens of the present invention employs the mode that sphere and aspherical lens are combined, and reduces
The external diameter of lens system, improves the resolving power of whole group camera lens, reduces distortion and chief ray shooting angle, takes into full account
The angle of visual field and the property taken into account as matter, it is ensured that camera lens has excellent image quality in the case of the big angle of visual field, so as to reach
To more than 210 ° of ultra-large vision field angle, it can match the imager chip of more than 16,000,000 pixels.It is of the present invention fish-eye
Structure composition can realize miniaturization, further, since each lens is all glass lens, so can easily realize that multiplying power is corrected
And suitable for different humiture occasions, extending the fish-eye service life, it is adaptable to batch machining is produced, and is reduced into
This.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of fish eye lens, including the first lens group close to thing side, the second lens group close to imaging surface and located at institute
State the diaphragm between the first lens group and second lens group, it is characterised in that：
First lens group includes the curved month type with negative power and concave surface towards imaging surface successively from thing side to imaging surface
First lens, with negative power and its image side surface it is the second lens of concave surface, with positive light coke and its image side surface is convex surface
The 3rd lens and the 4th lens with positive light coke；
Second lens group from thing side to imaging surface successively include with positive light coke and it is two-sided be convex surface the 5th lens,
With positive light coke and it is two-sided be convex surface the 6th lens, with negative power and it is two-sided be concave surface the 7th lens and
With positive light coke and it is two-sided be convex surface the 8th lens, wherein the 6th lens and the 7th lens group are into glued mirror
Piece；
First lens, the 5th lens, the 6th lens, the 7th lens are glass spheric glass, described
8th lens are Glass aspheric eyeglass.
2. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：0<f·c12<
1,0<f·c22<1 and 0<f·c81<1, wherein f are the fish-eye focal length, and c12 is the image side of first lens
The curvature in face, c22 is the curvature of the image side surface of second lens, and c81 is the curvature of the thing side of the 8th lens.
3. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：WhereinFor the fish-eye focal power,For the 8th power of lens.
4. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：WhereinFor the 5th power of lens,For the 7th power of lens.
5. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：
Dn5/dt5+dn6/dt6 ＜ 0；
Dn4/dt4+dn5/dt5+dn6/dt6+dn8/dt8 ＜ 2.5；
The relation that wherein dn4/dt4 varies with temperature for the Refractive Index of Material of the 4th lens, dn5/dt5 is the described 5th saturating
The relation that the Refractive Index of Material of mirror is varied with temperature, dn6/dt6 varies with temperature for the Refractive Index of Material of the 6th lens
Relation, the relation that dn8/dt8 varies with temperature for the Refractive Index of Material of the 8th lens.
6. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：0.5 ＜ c41/
C42 ＜ 2, wherein c41 are the curvature of the thing side of the 4th lens, and c42 is the curvature of the image side surface of the 4th lens.
7. fish eye lens according to claim 1, it is characterised in that the fish eye lens meets conditional：
30 ＜ Vd6-Vd7＜ 65；
Vd2＞ 55；
Vd8＞ 55；
Wherein Vd2、Vd6、Vd7And Vd8Respectively described second lens, the 6th lens, the 7th lens and described
The Abbe number of 8th lens.
8. fish eye lens according to claim 1, it is characterised in that the surface of the aspherical lens in the fish eye lens
Shape is satisfied by following equations：
<mrow>
<mi>z</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msup>
<mi>ch</mi>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<mn>1</mn>
<mo>+</mo>
<msqrt>
<mrow>
<mn>1</mn>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mi>K</mi>
<mo>)</mo>
</mrow>
<msup>
<mi>c</mi>
<mn>2</mn>
</msup>
<msup>
<mi>h</mi>
<mn>2</mn>
</msup>
</mrow>
</msqrt>
</mrow>
</mfrac>
<mo>+</mo>
<msup>
<mi>Bh</mi>
<mn>4</mn>
</msup>
<mo>+</mo>
<msup>
<mi>Ch</mi>
<mn>6</mn>
</msup>
<mo>+</mo>
<msup>
<mi>Dh</mi>
<mn>8</mn>
</msup>
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<msup>
<mi>Eh</mi>
<mn>10</mn>
</msup>
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<msup>
<mi>Fh</mi>
<mn>12</mn>
</msup>
</mrow>
Wherein, z is the distance of curved surface and curved surface summit in optical axis direction, and h is distance of the optical axis to curved surface, and c is curved surface summit
Curvature, K is quadratic surface coefficient, and B, C, D, E, F are respectively quadravalence, six ranks, eight ranks, ten ranks, ten surface of second order coefficients.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518221.1A CN107167898B (en) | 2017-06-29 | 2017-06-29 | Fish-eye lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518221.1A CN107167898B (en) | 2017-06-29 | 2017-06-29 | Fish-eye lens |
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| Publication Number | Publication Date |
|---|---|
| CN107167898A true CN107167898A (en) | 2017-09-15 |
| CN107167898B CN107167898B (en) | 2023-05-02 |
Family
ID=59826591
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710518221.1A Active CN107167898B (en) | 2017-06-29 | 2017-06-29 | Fish-eye lens |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728293A (en) * | 2017-11-08 | 2018-02-23 | 广东弘景光电科技股份有限公司 | High pixel ultra-wide angle optical system |
| CN107728292A (en) * | 2017-11-08 | 2018-02-23 | 广东弘景光电科技股份有限公司 | High pixel ultra wide-angle imaging module |
| CN108319004A (en) * | 2018-03-27 | 2018-07-24 | 广东弘景光电科技股份有限公司 | High pixel ultra-wide angle optical system and its camera module of application |
| CN108318996A (en) * | 2018-03-09 | 2018-07-24 | 江西联益光学有限公司 | Collimate camera lens |
| CN110286476A (en) * | 2019-08-20 | 2019-09-27 | 江西联创电子有限公司 | Optical imaging lens and imaging device |
| CN110596860A (en) * | 2019-08-20 | 2019-12-20 | 江西联创电子有限公司 | High-pixel wide-angle lens and imaging device |
| CN110609378A (en) * | 2019-08-20 | 2019-12-24 | 江西联创电子有限公司 | Wide-angle lens and imaging apparatus |
| CN110618520A (en) * | 2019-08-20 | 2019-12-27 | 江西联创电子有限公司 | Wide-angle lens and imaging apparatus |
| WO2020143420A1 (en) * | 2019-01-07 | 2020-07-16 | 广东弘景光电科技股份有限公司 | High-resolution, wide angle, day and night confocal optical system and camera module used by same |
| US20210055528A1 (en) * | 2019-08-20 | 2021-02-25 | Jiangxi Lianchuang Electronic Co., Ltd. | Wide-angle lens, camera module and camera |
| CN114002825A (en) * | 2021-12-24 | 2022-02-01 | 江西联创电子有限公司 | Fisheye lens |
| US11829005B2 (en) | 2019-08-20 | 2023-11-28 | Jiangxi Lianchuang Electronic Co., Ltd. | Wide-angle lens, imaging module and camera including eight lenses of −−+−++−+ refractive powers |
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