CN202854359U - Cylindrical lens with reflection film - Google Patents
Cylindrical lens with reflection film Download PDFInfo
- Publication number
- CN202854359U CN202854359U CN2012204679658U CN201220467965U CN202854359U CN 202854359 U CN202854359 U CN 202854359U CN 2012204679658 U CN2012204679658 U CN 2012204679658U CN 201220467965 U CN201220467965 U CN 201220467965U CN 202854359 U CN202854359 U CN 202854359U
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- lens body
- cylindrical lens
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- utility
- lens
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- Expired - Fee Related
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- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Surface Treatment Of Optical Elements (AREA)
Abstract
The utility model relates to a cylindrical lens with a reflection film. The cylindrical lens is provided with a lens body; the lens body is a plano-convex cylindrical lens; and a layer of reflection reduction film is coated on each of the planar surface and the convex surface of the lens body. The high-strength reflection reduction film is used to reduce the reflection of the cylindrical lens, the cylindrical lens is simple in structure, convenience in manufacture and low in cost, and a line source with a relatively large angle is provided.
Description
Technical field
The utility model relates to the optical devices technologies field, particularly relates to a kind of cylindrical lens with reflectance coating.
Background technology
Semiconductor laser is applied in numerous fields, and using as line source then needs the cooperation of cylindrical lens just can obtain satisfactory line source.Line source of the prior art is with parallel beam formation after the cylindrical lens refraction of laser instrument output, outwards launches with 180 ° centered by the cylindrical axes of a cylindrical lens.If the line source that needs is 30 °, just the light of redundance need to be sheltered from, because laser instrument is by behind the cylindrical lens, its energy even is distributed on the direction of prolonging 180 °, to lose 6 times energy like this, and the line source undercapacity that provides will be provided, affect result of use.Improve the intensity of line source, just need to increase the power of laser instrument, this must make volume increase, and cost improves, complex process.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and a kind of cylindrical lens with reflectance coating that provides than wide angle line source is provided.
The technical scheme that realizes the utility model purpose is: a kind of cylindrical lens with reflectance coating has lens body; Described lens body is the plano-convex cylindrical lens; All be covered with one deck antireflecting film on the plane of described lens body and the convex surface.
The plane of the described lens body of technique scheme and the distance between the convex surface are 2.5 ± 8%mm.
The radius-of-curvature of the convex surface of the described lens body of technique scheme is 14 ± 5.7%mm.
The first focal length of the described lens body of technique scheme is 28.2 ± 2.4%mm, and the second focal length is 28.3 ± 1.7%mm.
The width of the described lens body of technique scheme is 5 ± 10%mm, and length is 6.5 ± 1.5mm.
The material of the described lens body of technique scheme is K9 glass.
After adopting technique scheme, the utlity model has following positive effect:
The utility model adopts the high strength antireflecting film to reduce the reflection of cylindrical lens, and simple in structure, easy to make, production cost is low, and can provide than wide angle line source.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is line source index path of the present utility model;
1. lens body, 2. antireflecting film among the figure.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the utlity model has lens body 1; Lens body 1 is the plano-convex cylindrical lens; All be covered with one deck antireflecting film 2 on the plane of lens body 1 and the convex surface.The plane of lens body 1 and the distance between the convex surface are 2.5 ± 8%mm.The radius-of-curvature of the convex surface of lens body 1 is 14 ± 5.7%mm.The first focal length of lens body 1 is 28.2 ± 2.4%mm, and the second focal length is 28.3 ± 1.7%mm.The width of lens body 1 is 5 ± 10%mm, and length is 6.5 ± 1.5mm.
The material of lens body 1 is K9 glass.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. the cylindrical lens with reflectance coating has lens body (1); Described lens body (1) is the plano-convex cylindrical lens; It is characterized in that: all be covered with one deck antireflecting film (2) on the plane of described lens body (1) and the convex surface; The plane of described lens body (1) and the distance between the convex surface are 2.5 ± 8%mm; The radius-of-curvature of the convex surface of described lens body (1) is 14 ± 5.7%mm; The first focal length of described lens body (1) is 28.2 ± 2.4%mm, and the second focal length is 28.3 ± 1.7%mm; The width of described lens body (1) is 5 ± 10%mm, and length is 6.5 ± 1.5mm.
2. the cylindrical lens with reflectance coating according to claim 1, it is characterized in that: the material of described lens body (1) is K9 glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204679658U CN202854359U (en) | 2012-09-14 | 2012-09-14 | Cylindrical lens with reflection film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204679658U CN202854359U (en) | 2012-09-14 | 2012-09-14 | Cylindrical lens with reflection film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202854359U true CN202854359U (en) | 2013-04-03 |
Family
ID=47985542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204679658U Expired - Fee Related CN202854359U (en) | 2012-09-14 | 2012-09-14 | Cylindrical lens with reflection film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202854359U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792651A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Line light source condenser |
| CN103792600A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Line condensing lens |
| CN106772716A (en) * | 2017-02-07 | 2017-05-31 | 长沙青波光电科技有限公司 | The preparation method of big NA aspheric designs |
-
2012
- 2012-09-14 CN CN2012204679658U patent/CN202854359U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792651A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Line light source condenser |
| CN103792600A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Line condensing lens |
| CN106772716A (en) * | 2017-02-07 | 2017-05-31 | 长沙青波光电科技有限公司 | The preparation method of big NA aspheric designs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130914 |