CN107589530A - 200 ° of ultra-wide angle fish eye lenses - Google Patents
200 ° of ultra-wide angle fish eye lenses Download PDFInfo
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- CN107589530A CN107589530A CN201710744374.8A CN201710744374A CN107589530A CN 107589530 A CN107589530 A CN 107589530A CN 201710744374 A CN201710744374 A CN 201710744374A CN 107589530 A CN107589530 A CN 107589530A
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- eyeglass
- ultra
- wide angle
- eye lenses
- fish eye
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 3
- 230000004075 alteration Effects 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
A kind of 200 ° of ultra-wide angle fish eye lenses; it is characterized in that including ball-type protective cover (1), outer lens barrel (2) and inner lens cone (3); ball-type protective cover (1) is connected with outer lens barrel (2); inner lens cone (3) is arranged in outer lens barrel (2), and the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10) are sequentially provided with the inner lens cone (3).200 ° of ultra-wide angle fish eye lenses of the present invention still ensure the balance between bugeye lens overall length and spherical aberration in the case of its size is less, it is small with distorting, the advantages of visual angle is wide, high resolution, so as to obtain preferable image quality, and use spherical mirror, machining accuracy is high, and technology controlling and process is good, reduce further cost.
Description
Technical field
The present invention relates to camera lens field, especially a kind of 200 ° of ultra-wide angle fish eye lenses.
Background technology
The image that traditional monitoring bugeye lens captures generally has serious image deformation on screen.Cause
How this, design visual angle extensively and will not cause to be imaged the bugeye lens of Severe distortion, it has also become the art engineering skill
The direction of art personnel research.In order to reduce image deformation, non-spherical lens can be used typically in bugeye lens design process
Substitute spherical lens, still, the production cost of non-spherical lens is higher, is unfavorable for saving production cost.
The content of the invention
It is an object of the invention to provide a kind of 200 ° of ultra-wide angle fish eye lenses, realized by multi-disc spheric glass small-sized
Change, the small demand of ultrahigh resolution, ultra-wide visual angle, image deformation.
The technical scheme is that：
A kind of 200 ° of ultra-wide angle fish eye lenses, it is characterised in that including ball-type protective cover (1), outer lens barrel (2) and inner lens cone
(3), ball-type protective cover (1) is connected with outer lens barrel (2), and inner lens cone (3) is arranged in outer lens barrel (2), in the inner lens cone (3) according to
It is secondary to be provided with the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10), in the inner lens cone (3) according to
It is secondary to be provided with the first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5) and the 6th
Eyeglass (G6), the first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3) and the 4th eyeglass (G4) are selenodont eyeglass,
Its thing side is convex lens, and image side is concavees lens；5th eyeglass (G5) and the 9th eyeglass (G9) are biconvex eyeglass；6th eyeglass
(G6), the 8th eyeglass (G8) and the tenth eyeglass (G10) are selenodont eyeglass, and its thing side is concavees lens, and image side is convex lens；The
Seven eyeglasses (G7) are single convex eyeglass, and its thing side is level crossing, and image side is convex lens；200 ° of ultra-wide angle are fish-eye
TTL length is 28.66 millimeters；The fish-eye optic back focal of 200 ° of ultra-wide angle is away from for 4 millimeters, 200 ° of ultra-wide angle fishes
The flange back focal length of glasses head is 3.74 millimeters, and nearest object distance is 0.1 meter；200 ° of ultra-wide angle fish eye lenses also meet following
Condition：
0.01 ＜ 1/FG1+1/FG2＜ 0.24；
Wherein, 1/FG1For the diopter of first eyeglass (G1), 1/FG2For the diopter of second eyeglass (G2).
200 ° of ultra-wide angle fish eye lenses also meet following condition：
N1 ＞ 1.8；N2 ＞ 1.6；N3 ＞ 1.6；N4 ＞ 1.74；N5 ＞ 1.8；N6 ＞ 1.8；N7 ＞ 1.6；
N8 ＞ 1.1.84；N9 ＞ 1.6；n10<1.7；Wherein, n1, n2, n3, n4, n5, n6, n7, n8, n9, n10 are respectively
First eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5), the 6th eyeglass
(G6), the refractive index of the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10).
200 ° of ultra-wide angle fish eye lenses also meet following condition：
v1<24；V2 ＞ 48；v3<66；V4 ＞ 50；v5<27；v6<38；V7 ＞ 65；v8<24；v9<65；V10 ＞ 30；Wherein
V1, v2, v3, v4, v5, v6, v7, v8, v9, v10 are respectively first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass
(G3), the 4th eyeglass (G4), the 5th eyeglass (G5), the 6th eyeglass (G6), the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th mirror
The Abbe number of piece (G9) and the tenth eyeglass (G10).
The beneficial effects of the invention are as follows：
The present invention 200 ° of ultra-wide angle fish eye lenses still ensure in the case of its size is less bugeye lens overall length with
Balance between spherical aberration, there is the advantages of distortion is small, and visual angle is wide, high resolution, so as to obtain preferable image quality, and adopt
With spherical mirror, machining accuracy is high, and technology controlling and process is good, reduce further cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the lens structure schematic diagram of the present invention.
Fig. 3 is the schematic diagram of the modulation transfer function (MTF) of the camera lens of the present invention, and the independent variable that transverse axis represents in figure is picture
The spatial frequency in face, vertical pivot represent optical transfer function.
Fig. 4 is the curvature of field schematic diagram of the camera lens of the present invention, and unit is millimeter.
Fig. 5 is the distortion schematic diagram of the camera lens of the present invention.
Fig. 6 is Fast Fourier Transform (FFT) (FFT) schematic diagram of the camera lens of the present invention.
In figure：1 it is ball-type protective cover, 2 be outer lens barrel, 3 is inner lens cone.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
Such as Fig. 1 to Fig. 6, a kind of 200 ° of ultra-wide angle fish eye lenses, it is characterised in that including ball-type protective cover (1), outer lens barrel
(2) it is connected with inner lens cone (3), ball-type protective cover (1) with outer lens barrel (2), inner lens cone (3) is arranged in outer lens barrel (2), described interior
The 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10) are sequentially provided with lens barrel (3), it is described interior
The first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass are sequentially provided with lens barrel (3)
(G5) and the 6th eyeglass (G6), the first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3) and the 4th eyeglass (G4) are the moon
Tooth form eyeglass, its thing side are convex lens, and image side is concavees lens；5th eyeglass (G5) and the 9th eyeglass (G9) are biconvex mirror
Piece；6th eyeglass (G6), the 8th eyeglass (G8) and the tenth eyeglass (G10) are selenodont eyeglass, and its thing side is concavees lens, image side
For convex lens；7th eyeglass (G7) is single convex eyeglass, and its thing side is level crossing, and image side is convex lens；200 ° of ultra-wide angle
Fish-eye TTL length is 28.66 millimeters；The fish-eye optic back focal of 200 ° of ultra-wide angle is described away from for 4 millimeters
The fish-eye flange back focal length of 200 ° of ultra-wide angle is 3.74 millimeters, and nearest object distance is 0.1 meter；200 ° of ultra-wide angle flake mirror
Head also meets following condition：
0.01 ＜ 1/FG1+1/FG2＜ 0.24；
Wherein, 1/FG1For the diopter of first eyeglass (G1), 1/FG2For the diopter of second eyeglass (G2).
200 ° of ultra-wide angle fish eye lenses of the present invention possess larger visual angle, while ensure that 200 ° of ultra-wide angle fish eye lenses
Miniaturization.Furthermore the focal power design of eyeglass can effectively reduce spherical aberration and the degree of distortion, to lift 200 ° of ultra-wide angle flakes
The optical characteristics of camera lens, it effectively have modified 200 ° of fish-eye spherical aberrations of ultra-wide angle.
200 ° of ultra-wide angle fish eye lenses also meet following condition：
0.01 ＜ 1/FG1+1/FG2＜ 0.24；
Wherein, 1/FG1For the diopter of first eyeglass (G1), 1/FG2For the diopter of second eyeglass (G2).
So that the diopter of the first eyeglass (G1) and the second eyeglass (G2) is smaller, each eyeglass manufacture susceptibility can be made relatively low, reduce production
Cost, and be easy to change lateral chromatic aberration and curvature of the image.Ensure 200 ° of fish-eye overall lengths of ultra-wide angle, it is small-sized to be advantageous to its
Change.
Ensure the image height that can reach high-resolution, and less distortion characteristics.
It ensure that the fish-eye ultra-wide angle requirement of 200 ° of ultra-wide angle, it can be ensured that the light of wide-angle can be assembled effectively, together
When ensure miniaturization requirement.So that the fish-eye spherical aberration of 200 ° of ultra-wide angle and distortion are easy to correct.
Preferably, 200 ° of ultra-wide angle fish eye lenses also meet following condition：
N1 ＞ 1.8；N2 ＞ 1.6；N3 ＞ 1.6；N4 ＞ 1.74；N5 ＞ 1.8；N6 ＞ 1.8；N7 ＞ 1.6；
N8 ＞ 1.1.84；N9 ＞ 1.6；n10<1.7.
v1<24；V2 ＞ 48；v3<66；V4 ＞ 50；v5<27；v6<38；V7 ＞ 65；v8<24；v9<65；V10 ＞ 30.
Wherein, n1, n2, n3, n4, n5, n6, n7, n8, n9, n10 are respectively first eyeglass (G1), the second eyeglass
(G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5), the 6th eyeglass (G6), the 7th eyeglass (G7), the 8th mirror
The refractive index of piece (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10), v1, v2, v3, v4, v5, v6, v7, v8, v9, v10 difference
For first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5), the 6th mirror
Piece (G6), the 7th eyeglass (G7), the 8th eyeglass (G8), the Abbe number of the 9th eyeglass (G9) and the tenth eyeglass (G10).Above-mentioned parameter
Ensure that the light of wide-angle can effectively assemble.The optical parametric of minute surface such as table 1.
Table 1
The optical parametric of eyeglass such as table 2.
Table 2
Fig. 3 is the schematic diagram of the modulation transfer function (MTF) of the camera lens of the present invention, and the independent variable that transverse axis represents in figure is picture
The spatial frequency in face, vertical pivot represent optical transfer function.It can be seen that curve ratio is more linear.
Fig. 4 is the curvature of field schematic diagram of the camera lens of the present invention, and unit is millimeter, and curve controlled obtains at positive and negative 0.15 millimeter
Preferable control.
Fig. 5 is the distortion schematic diagram of the camera lens of the present invention, controls -160, has also obtained preferable amendment.
Fig. 6 is Fast Fourier Transform (FFT) (FFT) schematic diagram of the camera lens of the present invention, and figure is concentrated very much, has been obtained good
Curve.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined, under the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this hair in this area
The all variations and modifications that bright technical scheme is made, protection scope of the present invention, the claimed skill of the present invention all should be fallen into
Art content has all been recorded in detail in the claims.
Claims (3)
1. a kind of 200 ° of ultra-wide angle fish eye lenses, it is characterised in that including ball-type protective cover (1), outer lens barrel (2) and inner lens cone
(3), ball-type protective cover (1) is connected with outer lens barrel (2), and inner lens cone (3) is arranged in outer lens barrel (2), in the inner lens cone (3) according to
It is secondary to be provided with the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10), in the inner lens cone (3) according to
It is secondary to be provided with the first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5) and the 6th
Eyeglass (G6), the first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3) and the 4th eyeglass (G4) are selenodont eyeglass,
Its thing side is convex lens, and image side is concavees lens；5th eyeglass (G5) and the 9th eyeglass (G9) are biconvex eyeglass；6th eyeglass
(G6), the 8th eyeglass (G8) and the tenth eyeglass (G10) are selenodont eyeglass, and its thing side is concavees lens, and image side is convex lens；The
Seven eyeglasses (G7) are single convex eyeglass, and its thing side is level crossing, and image side is convex lens；200 ° of ultra-wide angle are fish-eye
TTL length is 28.66 millimeters；The fish-eye optic back focal of 200 ° of ultra-wide angle is away from for 4 millimeters, 200 ° of ultra-wide angle fishes
The flange back focal length of glasses head is 3.74 millimeters, and nearest object distance is 0.1 meter；200 ° of ultra-wide angle fish eye lenses also meet following
Condition：
0.01 ＜ 1/FG1+1/FG2＜ 0.24；
Wherein, 1/FG1For the diopter of first eyeglass (G1), 1/FG2For the diopter of second eyeglass (G2).
2. 200 ° of ultra-wide angle fish eye lenses according to claim 1, it is characterised in that 200 ° of ultra-wide angle fish eye lenses
Also meet following condition：
N1 ＞ 1.8；N2 ＞ 1.6；N3 ＞ 1.6；N4 ＞ 1.74；N5 ＞ 1.8；N6 ＞ 1.8；N7 ＞ 1.6；N8 ＞ 1.1.84；N9 ＞
1.6；n10<1.7；Wherein, n1, n2, n3, n4, n5, n6, n7, n8, n9, n10 are respectively first eyeglass (G1), the second mirror
Piece (G2), the 3rd eyeglass (G3), the 4th eyeglass (G4), the 5th eyeglass (G5), the 6th eyeglass (G6), the 7th eyeglass (G7), the 8th
The refractive index of eyeglass (G8), the 9th eyeglass (G9) and the tenth eyeglass (G10).
3. 200 ° of ultra-wide angle fish eye lenses according to claim 1, it is characterised in that 200 ° of ultra-wide angle fish eye lenses
Also meet following condition：
v1<24；V2 ＞ 48；v3<66；V4 ＞ 50；v5<27；v6<38；V7 ＞ 65；v8<24；v9<65；V10 ＞ 30；Wherein v1,
V2, v3, v4, v5, v6, v7, v8, v9, v10 be respectively first eyeglass (G1), the second eyeglass (G2), the 3rd eyeglass (G3),
4th eyeglass (G4), the 5th eyeglass (G5), the 6th eyeglass (G6), the 7th eyeglass (G7), the 8th eyeglass (G8), the 9th eyeglass (G9)
With the Abbe number of the tenth eyeglass (G10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744374.8A CN107589530A (en) | 2017-08-25 | 2017-08-25 | 200 ° of ultra-wide angle fish eye lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744374.8A CN107589530A (en) | 2017-08-25 | 2017-08-25 | 200 ° of ultra-wide angle fish eye lenses |
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| Publication Number | Publication Date |
|---|---|
| CN107589530A true CN107589530A (en) | 2018-01-16 |
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ID=61042700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710744374.8A Pending CN107589530A (en) | 2017-08-25 | 2017-08-25 | 200 ° of ultra-wide angle fish eye lenses |
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| CN (1) | CN107589530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025825A (en) * | 2019-12-31 | 2020-04-17 | 广景视睿科技（深圳）有限公司 | Projection lens |
-
2017
- 2017-08-25 CN CN201710744374.8A patent/CN107589530A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025825A (en) * | 2019-12-31 | 2020-04-17 | 广景视睿科技（深圳）有限公司 | Projection lens |
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Application publication date: 20180116 |