CN206362992U - High definition fish eye lens - Google Patents
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- CN206362992U CN206362992U CN201621446174.1U CN201621446174U CN206362992U CN 206362992 U CN206362992 U CN 206362992U CN 201621446174 U CN201621446174 U CN 201621446174U CN 206362992 U CN206362992 U CN 206362992U
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Abstract
The utility model belongs to lens technology field, more particularly to a kind of high definition fish eye lens, including the first lens being arranged in order from the object side to the image side are to the 6th lens；Firstth, the 4th lens are glass lens, and the three, the 5th and the 6th lens are plastic aspheric lens；First lens are falcate negative-power lenses, second lens are concave-concave negative-power lenses or falcate negative-power lenses, 3rd lens are biconvex positive power lens or falcate positive power lens, 4th lens are biconvex positive power lens, 5th lens are concave-concave negative-power lenses, and the 6th lens are biconvex positive power lens.Relative to prior art, the utility model can realize small volume, lightweight purpose, effectively control cost；And while ensureing edge as matter by rational Lens Design, edge relative illumination is up to more than 65%；Support visible ray with it is infrared confocal, can meet the requirement of resolving power in day and night；In the environment of 40~+85 DEG C using ensure that parsing power it is constant.
Description
Technical field
The utility model belongs to lens technology field, more particularly to a kind of high definition fish eye lens.
Background technology
High-resolution high definition fish eye lens is widely used in safety monitoring, the equipment such as vehicle-mounted.As VR technologies, panorama are taken the photograph
The rise of shadow, the same demand high-resolution high definition fish eye lens in E-consumer class market, its market potential is huge.Such as Application No.
Panorama motion cameras just needs light weight, high resolution, optics disclosed in CN201610023156.0 Chinese patent application
The high definition fish eye lens of total length.
Traditional high definition fish eye lens is usually full glass lens, and needs more than 6 pieces of glass lens, such as application number
The high definition fish eye lens disclosed in CN201410702755.6 Chinese patent application just employs 9 sheet glass eyeglasses, but this
Kind wide-angle lens volume is larger, heavier-weight, and expensive.
Also there is product can be using aspherical glass lens by the way of optical glass lens are combined, to mitigate weight, drop
Low cost, the wide-angle lens as disclosed in the Chinese patent application of Application No. 200910099703.3, it uses 4 pieces of glass mirrors
Piece, 2 pieces of aspherical lens, but resolving power is relatively low, it is impossible to meet the requirement of fine definition.
In view of this, it is necessory to provide a kind of high definition fish eye lens, it has small volume, lightweight advantage, can
Effectively control cost；And while ensureing edge as matter by reasonably designing, edge relative illumination is up to more than 65%；Branch
Hold visible ray with it is infrared confocal, be satisfied by the requirement of resolving power in day and night (infrared mode)；Various temperature environments are adapted to,
It is constant using guarantee parsing power under -40~+85 DEG C of environment.
Utility model content
The purpose of this utility model is：In view of the shortcomings of the prior art, a kind of high definition fish eye lens is provided, it has
Small volume, lightweight advantage, can effectively control cost；And while ensureing edge as matter by reasonably designing, side
Edge relative illumination is up to more than 65%；Support visible ray with it is infrared confocal, day and night (infrared mode) be satisfied by solution picture
The requirement of power；Various temperature environments are adapted to, it is constant using guarantee parsing power under -40~+85 DEG C of environment.
In order to achieve the above object, the utility model is adopted the following technical scheme that：
High definition fish eye lens, including be arranged in order from the object side to the image side the first lens, the second lens, the 3rd lens,
Four lens, the 5th lens and the 6th lens；
First lens, the 4th lens are glass lens, the 3rd lens, the 5th lens and described the
Six lens are plastic aspheric lens；
First lens are the falcate negative-power lenses convex surface facing object space, and second lens are that concave-concave bears light
Power lenses or the falcate negative-power lenses convex surface facing object space, the 3rd lens are biconvex positive power lens or convex
Facing to the falcate positive power lens of image space, the 4th lens are biconvex positive power lens, and the 5th lens are
Concave-concave negative-power lenses, the 6th lens are biconvex positive power lens.
As a kind of fish-eye improvement of the utility model high definition, the focal length of first lens and Jiao of whole camera lens
Away from ratio meet following condition：3.0 ＜ | f1/f | ＜ 7.0.
As a kind of fish-eye improvement of the utility model high definition, the refractive index nd1 of first lens meets following
Condition：Nd1 ＞ 1.62.
As a kind of fish-eye improvement of the utility model high definition, the focal length of first lens and second lens
The ratio of focal length meet following condition：1.4 ＜ | f1/f2 | ＜ 2.4.
Improved as the fish-eye one kind of the utility model high definition, after first lens and second lens combination
The ratio of focal length of focal length f (1+2) and whole camera lens meet following condition：1.0 ＜ | f (1+2)/f | ＜ 2.4.
As the utility model high definition it is fish-eye it is a kind of improve, the Abbe constant vd4 of the 4th lens meet with
Lower condition：vd4>60.
It is used as a kind of fish-eye improvement of the utility model high definition, the focal length and the 6th lens of the 5th lens
Focal length meet following condition：0.6 ＜ | f5/f6 | ＜ 1.6.
As a kind of fish-eye improvement of the utility model high definition, the angle of visual field FOV of the camera lens is adapted to following scope：
160°≤FOV≤220°。
As a kind of fish-eye improvement of the utility model high definition, second lens are glass lens or plastics aspheric
Face lens.
As a kind of fish-eye improvement of the utility model high definition, set between the 3rd lens and the 4th lens
It is equipped with diaphragm.
Relative to prior art, high definition fish eye lens of the present utility model includes 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 and the 6th lens；Wherein the first lens, the 4th lens are glass
Glass lens, the 3rd lens, the 5th lens and the 6th lens be plastic aspheric lens, i.e. the utility model using glass lens with
The scheme that plastic aspheric lens are combined, it is possible to achieve small volume, lightweight purpose, effectively controls cost；And pass through
While rational Lens Design ensures edge as matter, edge relative illumination is up to more than 65%；And the utility model is also propped up
Hold visible ray with it is infrared confocal, can meet the requirement of resolving power in day and night (infrared mode)；The utility model can also
Adapt to various temperature environments, in the environment of -40~+85 DEG C using ensure that parsing power it is constant, be particularly suitable for safety monitoring,
The fields such as vehicle-mounted, panoramic shooting.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model and its advantage are described in further detail below with reference to specific embodiment, still,
Embodiment of the present utility model is not limited thereto.
As shown in figure 1, the high definition fish eye lens that the utility model is provided, including first be arranged in order from the object side to the image side
Lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5 and the 6th lens 6；
First lens 1, the 4th lens 4 are glass lens, and the 3rd lens 3, the 5th lens 5 and the 6th lens 6 are that plastics are non-
Spherical lens；
First lens 1 are the falcate negative-power lenses convex surface facing object space, and the second lens 2 are that concave-concave negative power is saturating
Mirror or the falcate negative-power lenses convex surface facing object space, the 3rd lens 3 are biconvex positive power lens or convex surface facing picture
The falcate positive power lens of side, the 4th lens 4 are biconvex positive power lens, and the 5th lens 5 are that concave-concave negative power is saturating
Mirror, the 6th lens 6 are biconvex positive power lens.
The ratio of the focal length of first lens 1 and the focal length of whole camera lens meets following condition：3.0 ＜ | f1/f | ＜ 7.0.
The refractive index nd1 of first lens 1 meets following condition：Nd1 ＞ 1.62.
The ratio of the focal length of the focal length of first lens 1 and the second lens 2 meets following condition：1.4 ＜ | f1/f2 | ＜ 2.4.
The ratio of focal length f (1+2) and the focal length of whole camera lens after first lens 1 and the combination of the second lens 2 meet following
Condition：1.0 ＜ | f (1+2)/f | ＜ 2.4.| f (1+2)/f | value it is smaller when, optics overall length TTL is preferably controlled, | f (1+2)/f |
Value it is larger when, aberration is preferably controlled.The utility model can reach optics overall length and the balance of aberration.
The Abbe constant vd4 of 4th lens 4 meets following condition：vd4>60.In current material, when Abbe constant is more than 70
When, refractive index is generally smaller, in lens design focal length f ＜ 1.3mm, or when requiring the optics overall length TTL ＜ 17mm of system, the
Four lens 4 will undertake larger focal power, and at this moment lens shape will be difficult to processing, while being difficult to put down in terms of tolerance
Weighing apparatus；So vd4 ＜ 70 are preferably used under these conditions, refractive index nd4 ＞ 1.55 material.
The focal length of 5th lens 5 and the focal length of the 6th lens 6 meet following condition：0.6 ＜ | f5/f6 | ＜ 1.6.
The angle of visual field FOV of camera lens is adapted to following scope：160°≤FOV≤220°.
Second lens 2 are glass lens or plastic aspheric lens.
Diaphragm is provided between 3rd lens 3 and the 4th lens 4.
Embodiment 1
As shown in figure 1, the high definition fish eye lens that the utility model is provided, including first be arranged in order from the object side to the image side
Lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5 and the 6th lens 6；
First lens 1, the 4th lens 4 are glass lens, and the 3rd lens 3, the 5th lens 5 and the 6th lens 6 are that plastics are non-
Spherical lens.
The six-element lens of the camera lens radius of curvature R in totally ten two faces, the center thickness d of lens, index of refraction in lens nd and
Abbe constant vd meets following condition respectively：
Table 1：The physical parameter of six-element lens.
| Face sequence number | Radius of curvature R (mm) | Center thickness d (mm) | Refractive index nd | Abbe constant vd |
| 1 | 12.71 | 0.53 | 1.70 | 55.5 |
| 2 | 2.83 | 1.87 | ||
| *3 | -15.58 | 0.63 | 1.54 | 55.8 |
| *4 | 1.70 | 1.02 | ||
| *5 | 6.92 | 2.56 | 1.64 | 24.0 |
| *6 | -6.28 | 1.25 | ||
| 7 (diaphragms) | Infinity | 0.16 | ||
| 8 | 6.81 | 1.71 | 1.59 | 68.6 |
| 9 | -2.65 | 0.11 | ||
| *10 | -2.65 | 0.50 | 1.64 | 24.0 |
| *11 | 5.79 | 0.09 | ||
| *12 | 3.63 | 1.83 | 1.54 | 55.8 |
| *13 | -2.38 | 3.00 | ||
| 14 | Infinity | 0.70 | 1.52 | 64.2 |
| 15 | Infinity | 0.06 |
Wherein, face sequence number 1 and 2 correspond to respectively first lens 1 close to object space and away from object space while, face sequence number
3 and 4 correspond to respectively the second lens 2 close to object space and away from object space while, it is saturating that face sequence number 5 and 6 corresponds to the 3rd respectively
Mirror 3 close to object space and away from object space while, face sequence number 7 corresponding diaphragm, face sequence number 8 and 9 corresponds to the 4th lens 4 respectively
Close to object space and away from object space while, face sequence number 10 and 11 correspond to respectively the 5th lens 5 close to the one side of object space and
One side away from object space, face sequence number 12 and 13 correspond to respectively the 6th lens 6 close to object space and away from object space while.
It is aspherical that the face of " * " is indicated in table 1, and it is as follows that aspherical lens meet formula：
Wherein：Z be it is aspherical along optical axis direction height be y position when, away from aspheric vertex of surface apart from rise.R represents the radius of curvature at Mian Xing centers, and k represents circular cone coefficient, and parameter A, B, C, D, E are high order aspheric surface coefficient, c=
1/R。
Aspherical face shape parameter is shown in Table 2 in the present embodiment：
Table 2：Aspherical face shape parameter
| Face sequence number | K | A | B | C | D | E |
| 3 | -20.44 | 3.30E-03 | -1.90E-03 | 2.08E-04 | 6.90E-06 | -1.64E-06 |
| 4 | -0.34 | 6.02E-03 | 4.01E-03 | -4.76E-03 | 2.02E-04 | 1.33E-04 |
| 5 | -0.79 | 6.85E-03 | -1.56E-03 | 1.44E-03 | -1.25E-03 | 2.42E-04 |
| 6 | 6.81 | -1.02E-03 | 5.53E-03 | -6.80E-03 | 3.09E-03 | -4.89E-04 |
| 10 | 1.00 | -1.11E-02 | 6.25E-03 | -1.72E-02 | 1.26E-02 | -3.18E-03 |
| 11 | -9.67 | 3.02E-03 | -4.31E-03 | -6.32E-04 | 8.27E-04 | -2.21E-04 |
| 12 | -3.74 | 1.96E-03 | 1.06E-03 | 8.14E-04 | -1.43E-04 | 1.23E-05 |
| 13 | -0.45 | 5.51E-03 | -5.05E-04 | 1.76E-03 | -4.62E-04 | 1.19E-04 |
High definition fish-eye focal length F=1.25mm, aperture FNO=2.2, angle of visual field FOV=that the present embodiment is provided
190 °, optics overall length TTL=16.0mm；The chip that pixel separation is 1.62 μm can be supported, edge relative illumination is 65%.
In a word, high definition fish eye lens of the present utility model includes the first lens 1, second being arranged in order from the object side to the image side
Lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5 and the 6th lens 6；Wherein the first lens 1, the 4th lens 4 are glass
Lens, the 3rd lens 3, the 5th lens 5 and the 6th lens 6 are that plastic aspheric lens, i.e. the utility model use glass lens
The scheme being combined with plastic aspheric lens, it is possible to achieve small volume, lightweight purpose, effectively controls cost；And it is logical
While rational Lens Design guarantee edge is crossed as matter, edge relative illumination is up to more than 65%；And the utility model is also
Support visible ray with it is infrared confocal, can meet the requirement of resolving power in day and night (infrared mode)；The utility model is also
Adapt to various temperature environments, in the environment of -40~+85 DEG C using ensure that parsing power it is constant.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out appropriate change and modification.Therefore, the utility model is not limited to specific implementation disclosed and described above
Some modifications and changes of the present utility model should also be as falling into scope of the claims of the present utility model by mode.
Although in addition, used some specific terms in this specification, these terms merely for convenience of description, not to this reality
With any limitation of new composition.
Claims (10)
1. high definition fish eye lens, it is characterised in that：Including the first lens being arranged in order from the object side to the image side, the second lens,
Three lens, the 4th lens, the 5th lens and the 6th lens；
First lens, the 4th lens are glass lens, the 3rd lens, the 5th lens and described 6th saturating
Mirror is plastic aspheric lens；
First lens are the falcate negative-power lenses convex surface facing object space, and second lens are concave-concave negative power
Lens or the falcate negative-power lenses convex surface facing object space, the 3rd lens are biconvex positive power lens or convex surface court
To the falcate positive power lens of image space, the 4th lens are biconvex positive power lens, and the 5th lens are concave-concave
Negative-power lenses, the 6th lens are biconvex positive power lens.
2. high definition fish eye lens according to claim 1, it is characterised in that：The focal length of first lens and whole camera lens
The ratio of focal length meet following condition：3.0 ＜ | f1/f | ＜ 7.0.
3. high definition fish eye lens according to claim 1, it is characterised in that：The refractive index nd1 of first lens is met
Following condition：Nd1 ＞ 1.62.
4. high definition fish eye lens according to claim 1, it is characterised in that：The focal length of first lens and described second
The ratio of the focal length of lens meets following condition：1.4 ＜ | f1/f2 | ＜ 2.4.
5. high definition fish eye lens according to claim 1, it is characterised in that：First lens and second lens group
The ratio of focal length f (1+2) and the focal length of whole camera lens after conjunction meet following condition：1.0 ＜ | f (1+2)/f | ＜ 2.4.
6. high definition fish eye lens according to claim 1, it is characterised in that：The Abbe constant vd4 of 4th lens expires
It is enough lower condition：vd4>60.
7. high definition fish eye lens according to claim 1, it is characterised in that：The focal length and the described 6th of 5th lens
The focal length of lens meets following condition：0.6 ＜ | f5/f6 | ＜ 1.6.
8. high definition fish eye lens according to claim 1, it is characterised in that：The angle of visual field FOV of the camera lens is adapted to as follows
Scope：160°≤FOV≤220°.
9. high definition fish eye lens according to claim 1, it is characterised in that：Second lens are glass lens or plastics
Non-spherical lens.
10. high definition fish eye lens according to claim 1, it is characterised in that：3rd lens and the 4th lens
Between be provided with diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446174.1U CN206362992U (en) | 2016-12-27 | 2016-12-27 | High definition fish eye lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446174.1U CN206362992U (en) | 2016-12-27 | 2016-12-27 | High definition fish eye lens |
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| Publication Number | Publication Date |
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| CN206362992U true CN206362992U (en) | 2017-07-28 |
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| CN201621446174.1U Active CN206362992U (en) | 2016-12-27 | 2016-12-27 | High definition fish eye lens |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425968A (en) * | 2017-08-30 | 2019-03-05 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| CN111538143A (en) * | 2020-05-29 | 2020-08-14 | 宁波锦辉光学科技有限公司 | Vehicle-mounted lens |
| WO2021237840A1 (en) * | 2020-05-29 | 2021-12-02 | 深圳市伯森光电科技有限公司 | Optical system |
-
2016
- 2016-12-27 CN CN201621446174.1U patent/CN206362992U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425968A (en) * | 2017-08-30 | 2019-03-05 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| CN109425968B (en) * | 2017-08-30 | 2020-12-01 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| CN111538143A (en) * | 2020-05-29 | 2020-08-14 | 宁波锦辉光学科技有限公司 | Vehicle-mounted lens |
| WO2021237840A1 (en) * | 2020-05-29 | 2021-12-02 | 深圳市伯森光电科技有限公司 | Optical system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Pinguang Inventor after: Mi Shilong Inventor after: Liu Guanlu Inventor after: He Jianwei Inventor after: Mao Caiying Inventor before: Mi Shilong |