CN205485024U - Clear fisheye lens of superelevation - Google Patents
Clear fisheye lens of superelevation Download PDFInfo
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- CN205485024U CN205485024U CN201620018476.2U CN201620018476U CN205485024U CN 205485024 U CN205485024 U CN 205485024U CN 201620018476 U CN201620018476 U CN 201620018476U CN 205485024 U CN205485024 U CN 205485024U
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Abstract
The utility model belongs to the technical field of the camera lens, especially, relate to a clear fisheye lens of superelevation, include the first lens of arranging in proper order from the object space to the image space, the second lens, the third lens, the fourth lens, the 5th lens, VI lenses, the 7th lens, the 8th lens and the 9th lens, first lens are convex -concave negative power lens, the second lens are plano -concave negative power lens, the third lens are convex -concave negative power lens, the fourth lens are protruding flat positive focal power lens, the 5th lens are plano -convex positive focal power lens, VI lenses is biconcave negative power lens, the 7th lens are biconvex positive focal power lens, the 8th lens are biconvex positive focal power lens, the 9th lens are biconvex positive focal power lens. Compared with the prior art, the utility model discloses can promote the image quality of camera lens, reduced size, moreover the utility model discloses possess day night with burnt function, it can be to the no matter sharply defined image of infrared light, consequently to need not the focusing promptly under the visible light becomes the condition of sharply defined image the utility model discloses can satisfy 4K's requirement completely, possess good market prospect.
Description
Technical field
This utility model belongs to lens technology field, particularly relates to a kind of ultra high-definition fish eye lens.
Background technology
Fish eye lens is generally of the angle of visual field of more than 180 °, is therefore widely used in overall view monitoring system.
The most general fish eye lens pixel is between 200 ten thousand to 500 ten thousand pixels, and optics overall length mostly exists
More than 30mm, aperture is at about F2.2.Along with the rise of 4K concept, people require camera lens less to volume,
Pixel is higher, the more preferable direction of picture element is developed.
The most traditional fish eye lens can not meet the demand of 4K, therefore develops a volume small pixel
The fish eye lens that can meet 4K demand just seems necessary.
This utility model aims to provide a kind of ultra high-definition fish eye lens, and it uses 9 sheet glass eyeglasses, the angle of visual field
Reaching 190 °, optics overall length is less than 27mm, and its maximum ring reaches F1.6, it is seen that light resolution reaches 1200
Ten thousand pixels, infrared resolution rate reaches more than 800 mega pixels, is fully able to meet the requirement of 4K, possesses good
Good market prospect.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provides a kind of ultra high-definition flake mirror
Head, it uses 9 sheet glass eyeglasses, and the angle of visual field reaches 190 °, and optics overall length is less than 27mm, its maximum light
Circle reach F1.6, it is seen that light resolution reaches 12,000,000 pixels, infrared resolution rate reach 800 mega pixels with
On, it is fully able to meet the requirement of 4K, possesses good market prospect.
In order to achieve the above object, this utility model adopts the following technical scheme that
A kind of ultra high-definition fish eye lens, including the first lens being arranged in order from the object side to the image side, the second lens,
3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens and the 9th lens,
Described first lens are convex-concave negative-power lenses, and described second lens are plano-concave negative-power lenses, described
3rd lens are convex-concave negative-power lenses, and described 4th lens are convex flat positive power lens, the described 5th
Lens are plano-convex positive power lens, and described 6th lens are concave-concave negative-power lenses, described 7th lens
For biconvex positive power lens, described 8th lens are biconvex positive power lens, and described 9th lens are double
Convex positive power lens；First face (near the face of the first lens) of the second lens is arranged to plane,
Make the form of the first lens and the second lens forming plane positioning, thus be greatly improved the peace of assembling
Qualitative, improve the assembling yield of camera lens.
Described first lens meet following article to the focal length of described 9th lens and the ratio of the focal length of whole camera lens
Part:
5.6<|f1/f|<9.0；
2.2<|f2/f|<3.8；
6.2<|f3/f|<8.7；
3.0<|f4/f|<5.5；
11.1<|f5/f|<16.2；
1.3<|f6/f|<3.1；
2.0<|f7/f|<4.0；
7.0<|f8/f|<9.7；
4.0<|f9/f|<6.0；
Wherein, f is the focal length of whole camera lens；F1 to f9 is that described first lens are to described 9th lens respectively
Focal length.
A kind of improving as this utility model ultra high-definition is fish-eye, described first lens are to the most described 9th saturating
The focal length of mirror, refractive index meet following condition:
In upper table, " f " is focal length, and " n " is refractive index, and "-" number represents that direction is negative；
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens to the 9th lens；N1 to n9 correspondence respectively
Refractive index in the first lens to the 9th lens.
A kind of improve as this utility model ultra high-definition is fish-eye, described first lens and described second saturating
Mirror is directly abutted against assembling, described second lens and described 3rd lens by spacer ring close-fitting.
A kind of improve as this utility model ultra high-definition is fish-eye, described 3rd lens and described 4th saturating
Mirror passes through spacer ring close-fitting, described 4th lens and described 5th lens by spacer ring close-fitting, described 5th lens
With described 6th lens by spacer ring close-fitting, described 7th lens and described 8th lens by spacer ring close-fitting,
Described 8th lens and described 9th lens are by spacer ring close-fitting.
A kind of improve as this utility model ultra high-definition is fish-eye, described 6th lens and described 7th saturating
Mirror is bonded by optical cement.
A kind of improve as this utility model ultra high-definition is fish-eye, close described the of described first lens
Half bore of the one side of two lens and the ratio D/R of spherical radius be 0.81, it is to avoid most flake mirrors
Head easily occur close to hemisphere or the situation of hemispherical, be greatly improved the machinability of eyeglass.
A kind of improve as this utility model ultra high-definition is fish-eye, described 5th lens and described 6th saturating
Diaphragm it is provided with between mirror.
Relative to prior art, this utility model uses 9 sheet glass eyeglasses, and the angle of visual field reaches 190 °, optics
Overall length is less than 27mm, and focal length/image height is 0.33, realizes large aperture by reasonable employment glass combination, and it is
Large aperture reaches F1.6, and image quality is good, it is seen that light resolution reaches 12,000,000 pixels, and makes infrared
Also more than eight mega pixels can be reached, even if also can be real under night low-light (level) on the premise of the most again focusing on
Now clear bright monitored picture, is provided simultaneously with temperature compensation function, i.e. can reach-30～+80 DEG C of rings
Use under border and do not run Jiao.
In a word, this utility model can promote the image quality of camera lens, reduction volume, and this utility model
Possess day and night with burnt function, i.e. infrared light also can be become without focusing in the case of visible ray becomes sharply defined image
Sharply defined image, therefore this utility model is fully able to meet the requirement of 4K, possesses good market prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is index path of the present utility model.
Detailed description of the invention
Below with reference to specific embodiment, this utility model and beneficial effect thereof are described in further detail,
But, detailed description of the invention of the present utility model is not limited thereto.
As depicted in figs. 1 and 2, a kind of ultra high-definition fish eye lens that this utility model provides, including from thing side
First lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th being arranged in order to image space are saturating
Mirror the 5, the 6th lens the 6, the 7th lens the 7, the 8th lens 8 and the 9th lens 9, the first lens 1 are convex-concave
Negative-power lenses, the second lens 2 are plano-concave negative-power lenses, and the 3rd lens 3 are convex-concave negative power
Lens, the 4th lens 4 are convex flat positive power lens, and the 5th lens 5 are plano-convex positive power lens, the
Six lens 6 are concave-concave negative-power lenses, and the 7th lens 7 are biconvex positive power lens, the 8th lens 8
For biconvex positive power lens, the 9th lens 9 are biconvex positive power lens；By the second lens 2 first
Individual face (near the face of the first lens) is arranged to plane so that the first lens 1 and the second lens 2 define
By the form of plane positioning, thus it is greatly improved the stability of assembling, improves the assembling yield of camera lens.
In this utility model, the first lens 1 are glass spherical lens to the 9th lens 9.
The ratio of the focal length of the first lens 1 to the 9th lens 9 and the focal length of whole camera lens meets following condition:
5.6<|f1/f|<9.0；
2.2<|f2/f|<3.8；
6.2<|f3/f|<8.7；
3.0<|f4/f|<5.5；
11.1<|f5/f|<16.2；
1.3<|f6/f|<3.1；
2.0<|f7/f|<4.0；
7.0<|f8/f|<9.7；
4.0<|f9/f|<6.0；
Wherein, f is the focal length of whole camera lens；F1 to f9 is the focal length of the first lens to the 9th lens respectively.
Wherein, the focal length of the first lens 1 to the 9th lens 9, refractive index meet following condition:
| -15.14≤f1≤-10.22 | 1.65≤n1≤1.9 |
| -6.51≤f2≤-3.92 | 1.65≤n2≤1.9 |
| -13.65≤f3≤-9.22 | 1.65≤n3≤1.9 |
| 5.41≤f4≤7.85 | 1.7≤n4≤1.96 |
| 18.62≤f5≤24.32 | 1.4≤n5≤1.6 |
| -4.35≤f6≤-2.51 | 1.65≤n6≤1.9 |
| 3.12≤f7≤5.33 | 1.55≤n7≤1.75 |
| 11.01≤f8≤14.23 | 1.4≤n8≤1.6 |
| 6.54≤f9≤9.12 | 1.55≤n9≤1.75 |
In upper table, " f " is focal length, and " n " is refractive index, and "-" number represents that direction is negative；
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens 1 to the 9th lens 9；N1 to n9 is respectively
Refractive index corresponding to the first lens 1 to the 9th lens 9.
First lens 1 and the second lens 2 are directly abutted against assembling, the second lens 2 and the 3rd lens 3 by every
Circle close-fitting.
3rd lens 3 and the 4th lens 4 by spacer ring close-fitting, the 4th lens 4 and the 5th lens 5 by every
Circle close-fitting, the 5th lens 5 and the 6th lens 6 are led to by spacer ring close-fitting, the 7th lens 7 and the 8th lens 8
Crossing spacer ring close-fitting, the 8th lens 8 and the 9th lens 9 are by spacer ring close-fitting.
6th lens 6 and the 7th lens 7 are bonded by optical cement.
It is provided with diaphragm between 5th lens 5 and the 6th lens 6.
Half bore of one side near the second lens 2 of the first lens 1 with the ratio D/R of spherical radius is
0.81, it is to avoid most fish eye lenses easily occur close to hemisphere or the situation of hemispherical, significantly carry
Rise the machinability of eyeglass.
In a word, this utility model uses 9 sheet glass eyeglasses, and the angle of visual field reaches 190 °, and optics overall length is less than
27mm, focal length/image height is 0.33, realizes large aperture by reasonable employment glass combination, and its maximum ring reaches
F1.6, image quality is good, it is seen that light resolution reaches 12,000,000 pixels, and makes infrared the most again gathering
Also more than eight mega pixels can be reached, even if also can realize clear bright under low-light (level) at night on the premise of Jiao
Monitored picture, be provided simultaneously with temperature compensation function, i.e. use not under-30～+80 DEG C of environment can reach
Run Jiao.
In a word, this utility model can promote the image quality of camera lens, reduction volume, and this utility model
Possess day and night with burnt function, i.e. infrared light also can be become without focusing in the case of visible ray becomes sharply defined image
Sharply defined image, therefore this utility model is fully able to meet the requirement of 4K, possesses good market prospect.
Embodiment 1
The face type in nine lens totally ten eight faces of this camera lens, radius of curvature, lens thickness, lens pitch and
Lens index meets following condition respectively:
The physical parameter of 1: nine lens of table.
In upper table, " R " is radius of curvature, and "-" number represents that direction is negative, and " PL " represents plane, upper table the same face
Sequence number existing refractive index data n, has again data D, and data D represent the thickness at this lens axial line,
The same face sequence number only has data D not have refractive index data n, and data D represent that these lens are to next lens
The spacing in face.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be right
Above-mentioned embodiment carries out suitable change and amendment.Therefore, this utility model is not limited to be disclosed above
With the detailed description of the invention described, modifications and changes more of the present utility model be should also be as falls into this practicality new
In the scope of the claims of type.Although additionally, this specification employs some specific terms,
But these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (7)
1. a ultra high-definition fish eye lens, it is characterised in that: include first be arranged in order from the object side to the image side
Lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens,
Eight lens and the 9th lens, described first lens are convex-concave negative-power lenses, and described second lens are plano-concave
Negative-power lenses, described 3rd lens are convex-concave negative-power lenses, and described 4th lens are the positive light of convex flat
Power lenses, described 5th lens are plano-convex positive power lens, and described 6th lens are concave-concave negative power
Lens, described 7th lens are biconvex positive power lens, and described 8th lens are biconvex positive power lens,
Described 9th lens are biconvex positive power lens；
Described first lens meet following article to the focal length of described 9th lens and the ratio of the focal length of whole camera lens
Part:
5.6<|f1/f|<9.0；
2.2<|f2/f|<3.8；
6.2<|f3/f|<8.7；
3.0<|f4/f|<5.5；
11.1<|f5/f|<16.2；
1.3<|f6/f|<3.1；
2.0<|f7/f|<4.0；
7.0<|f8/f|<9.7；
4.0<|f9/f|<6.0；
Wherein, f is the focal length of whole camera lens；F1 to f9 is that described first lens are to described 9th lens respectively
Focal length.
Ultra high-definition fish eye lens the most according to claim 1, it is characterised in that: described first lens are extremely
The focal length of described 9th lens, refractive index meet following condition:
In upper table, " f " is focal length, and " n " is refractive index, and "-" number represents that direction is negative；
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens to the 9th lens；N1 to n9 correspondence respectively
Refractive index in the first lens to the 9th lens.
Ultra high-definition fish eye lens the most according to claim 1, it is characterised in that: described first lens and
Described second lens are directly abutted against assembling, described second lens and described 3rd lens by spacer ring close-fitting.
Ultra high-definition fish eye lens the most according to claim 3, it is characterised in that: described 3rd lens and
Described 4th lens pass through spacer ring close-fitting, described 4th lens and described 5th lens by spacer ring close-fitting, institute
Stating the 5th lens and described 6th lens pass through spacer ring close-fitting, described 7th lens and described 8th lens pass through
Spacer ring close-fitting, described 8th lens and described 9th lens pass through spacer ring close-fitting.
Ultra high-definition fish eye lens the most according to claim 1, it is characterised in that: described 6th lens and
Described 7th lens are bonded by optical cement.
Ultra high-definition fish eye lens the most according to claim 1, it is characterised in that: described first lens
It is 0.81 near half bore of one side and the ratio D/R of spherical radius of described second lens.
Ultra high-definition fish eye lens the most according to claim 1, it is characterised in that: described 5th lens and
It is provided with diaphragm between described 6th lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018476.2U CN205485024U (en) | 2016-01-07 | 2016-01-07 | Clear fisheye lens of superelevation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018476.2U CN205485024U (en) | 2016-01-07 | 2016-01-07 | Clear fisheye lens of superelevation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205485024U true CN205485024U (en) | 2016-08-17 |
Family
ID=56664332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620018476.2U Active CN205485024U (en) | 2016-01-07 | 2016-01-07 | Clear fisheye lens of superelevation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990509A (en) * | 2017-05-27 | 2017-07-28 | 深圳市东正光学技术有限公司 | Panorama fish eye lens |
| 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 |
| CN109541780A (en) * | 2018-11-16 | 2019-03-29 | 江西联创电子有限公司 | Optical lens and imaging device |
| CN112180548A (en) * | 2020-09-29 | 2021-01-05 | 中国科学院长春光学精密机械与物理研究所 | Near-infrared fisheye optical system for airborne laser warning |
| US11320631B2 (en) | 2017-09-19 | 2022-05-03 | Zhejiang Dahua Technology Co., Ltd. | Lens system and imaging device |
-
2016
- 2016-01-07 CN CN201620018476.2U patent/CN205485024U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990509A (en) * | 2017-05-27 | 2017-07-28 | 深圳市东正光学技术有限公司 | Panorama fish eye lens |
| CN106990509B (en) * | 2017-05-27 | 2022-09-13 | 深圳市东正光学技术股份有限公司 | Panoramic fish-eye lens |
| US11320631B2 (en) | 2017-09-19 | 2022-05-03 | Zhejiang Dahua Technology Co., Ltd. | Lens system and imaging device |
| 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 |
| CN107728293B (en) * | 2017-11-08 | 2023-10-27 | 广东弘景光电科技股份有限公司 | High-pixel ultra-wide angle optical system |
| CN109541780A (en) * | 2018-11-16 | 2019-03-29 | 江西联创电子有限公司 | Optical lens and imaging device |
| CN109541780B (en) * | 2018-11-16 | 2020-09-22 | 江西联创电子有限公司 | Optical lens and imaging apparatus |
| US11125974B2 (en) | 2018-11-16 | 2021-09-21 | Jiangxi Lianchuang Electronics Co., Ltd. | Optical lens, imaging module and vehicle camera |
| CN112180548A (en) * | 2020-09-29 | 2021-01-05 | 中国科学院长春光学精密机械与物理研究所 | Near-infrared fisheye optical system for airborne laser warning |
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