CN204009202U - A kind of full glass wide-angle lens - Google Patents
A kind of full glass wide-angle lens Download PDFInfo
- Publication number
- CN204009202U CN204009202U CN201420296159.8U CN201420296159U CN204009202U CN 204009202 U CN204009202 U CN 204009202U CN 201420296159 U CN201420296159 U CN 201420296159U CN 204009202 U CN204009202 U CN 204009202U
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- Prior art keywords
- lens element
- represent
- eyeglass
- lens
- meets
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Abstract
A kind of full glass wide-angle lens, comprises from object space and starts to be provided with successively first lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element, the 6th lens element and optical filter; First lens element is to have negative power the protruding concave-convex eyeglass to object space; The second lens element is the double concave eyeglass with negative power; The 3rd lens element is the lenticular eyeglass with positive light coke; The 4th lens element is the double concave eyeglass with negative power; The 5th lens element is the lenticular eyeglass with positive light coke; The 6th lens element is to have positive light coke the protruding convexo-plane eyeglass to object space; The 4th lens element and the 5th lens element composition gummed eyeglass; Between the 3rd lens element and the 4th lens element, be provided with diaphragm sheet; First lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element and the 6th lens element are glass spherical mirror.
Description
Technical field
The utility model relates to a kind of camera lens, relates in particular to a kind of wide-angle lens.
Background technology
Nowadays watch-dog has been the equipment that is extensively present in streets and lanes, for the police and citizen provide necessary video evidence.In watch-dog, the general wide-angle lens of installing can cover enough large scope first time, and this just requires the visual angle of camera lens large, and Lens is little simultaneously.So just can reach the object of monitoring.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of wide-angle lens, and visual angle is large, the total length of optics.
In order to solve above-mentioned technical matters, the utility model provides a kind of full glass wide-angle lens, comprises from object space and starts to be provided with successively first lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element, the 6th lens element and optical filter;
Described first lens element is to have negative power the protruding concave-convex eyeglass to object space;
Described the second lens element is the double concave eyeglass with negative power;
Described the 3rd lens element is the lenticular eyeglass with positive light coke;
Described the 4th lens element is the double concave eyeglass with negative power;
Described the 5th lens element is the lenticular eyeglass with positive light coke;
Described the 6th lens element is to have positive light coke the protruding convexo-plane eyeglass to object space;
Described the 4th lens element and the 5th lens element composition gummed eyeglass;
Between described the 3rd lens element and the 4th lens element, be provided with diaphragm sheet;
First lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element and the 6th lens element are glass spherical mirror.
Described first lens element meets: 1.699≤Nd
1≤ 1.899,42.23≤Vd1≤43.23;
Wherein represent Nd
1the d optical index of first lens element, Vd
1represent the d light Abbe constant of first lens element;
Described the second lens element meets: 1.672≤Nd
2≤ 1.872,49.12≤Vd
2≤ 50.12;
Wherein represent Nd
2the d optical index of the second lens element, Vd
2represent the d light Abbe constant of the second lens element;
Described the 3rd lens element meets: 1.7466≤Nd
3≤ 1.9466,23.33≤Vd
3≤ 24.33;
Wherein represent Nd
3the d optical index of the 3rd lens element, Vd
3represent the d light Abbe constant of the 3rd lens element;
Described the 4th lens element meets: 1.7466≤Nd
4≤ 1.9466,23.33≤Vd
4≤ 24.33;
Wherein Nd
4represent the d optical index of the 4th lens element, Vd
4represent the d light Abbe constant of the 4th lens element;
Described the 5th lens element meets: 1.54≤Nd
5≤ 1.74,59.7≤Vd
5≤ 60.7;
Wherein Nd
5represent the d optical index of the 5th lens element, Vd
5represent the d light Abbe constant of the 5th lens element;
Described the 6th lens element meets: 1.416≤Nd
6≤ 1.616,63.64≤Vd
6≤ 64.64
Wherein Nd
5represent the d optical index of the 6th lens element, Vd
5represent the d light Abbe constant of the 6th lens element;
Described camera lens also meets: FOV >=180 °, horizontal field of view angle; Optics overall length TTL≤12.52mm; Image height >=4.5mm.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect:
1. camera lens provided by the utility model horizontal view angle, more than 180 °, is a wide-angle lens.
2. camera lens provided by the utility model all adopts the design of glass spherical mirror, and temperature tolerance and stability are all very strong.
3. camera lens total length provided by the utility model is less than 12.52mm, extremely saves space, and the place that is well suited for being arranged on limited space is as monitoring camera.
Brief description of the drawings
Fig. 1 is the concrete structure figure of full glass wide-angle lens in the utility model preferred embodiment;
Fig. 2 is the resolving power MTF curve map of full glass wide-angle lens in the utility model preferred embodiment;
Fig. 3 is the resolving power point range figure of full glass wide-angle lens in the utility model preferred embodiment;
Fig. 4 is practise physiognomy bending and the distortion figure of full glass wide-angle lens in the utility model preferred embodiment;
Fig. 5 is the relative exposure figure of full glass wide-angle lens in the utility model preferred embodiment.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described further.
With reference to figure 1, a kind of full glass wide-angle lens, comprises from object space and starts to be provided with successively first lens element 1, the second lens element 2, the 3rd lens element 3, the 4th lens element 4, the 5th lens element 5, the 6th lens element 6 and optical filter 7;
Described first lens element 1 is for having negative power the protruding concave-convex eyeglass to object space; In the present embodiment, the d optical index Nd of described first lens element 1
1=1.799, d light Abbe constant Vd
1=42.73;
Described the second lens element 2 is for having the double concave eyeglass of negative power; In the present embodiment, the d optical index Nd of described the second lens element 2
2=1.772, d light Abbe constant Vd
2=49.62;
Described the 3rd lens element 3 is for having the lenticular eyeglass of positive light coke; In the present embodiment, the d optical index Nd of described the 3rd lens element 3
3=1.8466, d light Abbe constant Vd
3=23.83;
Described the 4th lens element 4 is for having the double concave eyeglass of negative power; The d optical index Nd of described the 4th lens element 4
4=1.8466, d light Abbe constant Vd
4=23.83;
Described the 5th lens element 5 is for having the lenticular eyeglass of positive light coke; The d optical index Nd of described the 5th lens element 5
5=1.64, d light Abbe constant Vd
5=60.2;
Described the 6th lens element 6 is for having positive light coke the protruding convexo-plane eyeglass to object space; The d optical index Nd of described the 6th lens element 6
6=1.516, d light Abbe constant Vd
6=64.14;
Described the 4th lens element 4 and the 5th lens element 5 composition gummed eyeglasses;
Between described the 3rd lens element 3 and the 4th lens element 4, be provided with diaphragm sheet 8;
First lens element 1, the second lens element 2, the 3rd lens element 3, the 4th lens element 4, the 5th lens element 5 and the 6th lens element 6 are glass spherical mirror.
Described camera lens also meets: FOV >=180 °, horizontal field of view angle; Optics overall length TTL≤12.52mm; Image height >=4.5mm.
According to the full glass wide-angle lens of said structure and parameter designing, horizontal field of view angle FOV can reach more than 180 °, optics overall length TTL≤12.52mm, so the utility model provides a full glass wide-angle lens that angle is large, volume is little, is well suited for using as monitoring camera.
The optical performance curve figure of a kind of full glass wide-angle lens that Fig. 2-Fig. 5 provides for the present embodiment, wherein Fig. 2 is resolving power MTF figure, Fig. 3 is resolving power point range figure, Fig. 4 for bending and the distortion figure of practising physiognomy, Fig. 5 be relative exposure figure.As seen from the figure, a kind of full glass wide-angle lens that the present embodiment provides differs correction to level that can be practical by various.
The above, it is only the utility model preferred embodiment, not technical scope of the present utility model is imposed any restrictions, therefore any trickle amendment that every foundation technical spirit of the present utility model is done above example, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (1)
1. a full glass wide-angle lens, comprises from object space and starts to be provided with successively first lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element, the 6th lens element and optical filter; It is characterized in that:
Described first lens element is to have negative power the protruding concave-convex eyeglass to object space;
Described the second lens element is the double concave eyeglass with negative power;
Described the 3rd lens element is the lenticular eyeglass with positive light coke;
Described the 4th lens element is the double concave eyeglass with negative power;
Described the 5th lens element is the lenticular eyeglass with positive light coke;
Described the 6th lens element is to have positive light coke the protruding convexo-plane eyeglass to object space;
Described the 4th lens element and the 5th lens element composition gummed eyeglass;
Between described the 3rd lens element and the 4th lens element, be provided with diaphragm sheet;
First lens element, the second lens element, the 3rd lens element, the 4th lens element, the 5th lens element and the 6th lens element are glass spherical mirror;
Described first lens element meets: 1.699≤Nd
1≤ 1.899,42.23≤Vd
1≤ 43.23;
Wherein represent Nd
1the d optical index of first lens element, Vd
1represent the d light Abbe constant of first lens element;
Described the second lens element meets: 1.672≤Nd
2≤ 1.872,49.12≤Vd
2≤ 50.12;
Wherein represent Nd
2the d optical index of the second lens element, Vd
2represent the d light Abbe constant of the second lens element;
Described the 3rd lens element meets: 1.7466≤Nd
3≤ 1.9466,23.33≤Vd
3≤ 24.33;
Wherein represent Nd
3the d optical index of the 3rd lens element, Vd
3represent the d light Abbe constant of the 3rd lens element;
Described the 4th lens element meets: 1.7466≤Nd
4≤ 1.9466,23.33≤Vd
4≤ 24.33;
Wherein Nd
4represent the d optical index of the 4th lens element, Vd
4represent the d light Abbe constant of the 4th lens element;
Described the 5th lens element meets: 1.54≤Nd
5≤ 1.74,59.7≤Vd
5≤ 60.7;
Wherein Nd
5represent the d optical index of the 5th lens element, Vd
5represent the d light Abbe constant of the 5th lens element;
Described the 6th lens element meets: 1.416≤Nd
6≤ 1.616,63.64≤Vd
6≤ 64.64
Wherein Nd
5represent the d optical index of the 6th lens element, Vd
5represent the d light Abbe constant of the 6th lens element;
Described camera lens also meets: FOV >=180 °, horizontal field of view angle; Optics overall length TTL≤12.52mm; Image height >=4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296159.8U CN204009202U (en) | 2014-06-05 | 2014-06-05 | A kind of full glass wide-angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296159.8U CN204009202U (en) | 2014-06-05 | 2014-06-05 | A kind of full glass wide-angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204009202U true CN204009202U (en) | 2014-12-10 |
Family
ID=52049180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296159.8U Expired - Fee Related CN204009202U (en) | 2014-06-05 | 2014-06-05 | A kind of full glass wide-angle lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204009202U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572850A (en) * | 2016-03-07 | 2016-05-11 | 北京疯景科技有限公司 | Auxiliary imaging device for intelligent terminal |
| CN109613686A (en) * | 2018-12-21 | 2019-04-12 | 江西特莱斯光学有限公司 | A kind of ultra-thin wide-angle lens of no thermalization |
| CN109975960A (en) * | 2019-04-25 | 2019-07-05 | 协益电子（苏州）有限公司 | One kind looking around wide-angle without thermalization camera lens and automobile panoramic round-looking system |
| CN110187479A (en) * | 2019-07-15 | 2019-08-30 | 浙江舜宇光学有限公司 | Optical imaging lens |
-
2014
- 2014-06-05 CN CN201420296159.8U patent/CN204009202U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572850A (en) * | 2016-03-07 | 2016-05-11 | 北京疯景科技有限公司 | Auxiliary imaging device for intelligent terminal |
| CN109613686A (en) * | 2018-12-21 | 2019-04-12 | 江西特莱斯光学有限公司 | A kind of ultra-thin wide-angle lens of no thermalization |
| CN109975960A (en) * | 2019-04-25 | 2019-07-05 | 协益电子（苏州）有限公司 | One kind looking around wide-angle without thermalization camera lens and automobile panoramic round-looking system |
| CN110187479A (en) * | 2019-07-15 | 2019-08-30 | 浙江舜宇光学有限公司 | Optical imaging lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |