CN102081233A - Green light collimation and beam-expansion optical system - Google Patents
Green light collimation and beam-expansion optical system Download PDFInfo
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- CN102081233A CN102081233A CN200910219177XA CN200910219177A CN102081233A CN 102081233 A CN102081233 A CN 102081233A CN 200910219177X A CN200910219177X A CN 200910219177XA CN 200910219177 A CN200910219177 A CN 200910219177A CN 102081233 A CN102081233 A CN 102081233A
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Abstract
The invention relates to a green light collimation and beam-expansion optical system, comprising a self-focusing lens, a first biconcave lens, a second biconcave lens, a first convex lens and a second convex lens, wherein the first biconcave lens, the second biconcave lens, the first convex lens and the second convex lens are successively arranged on the optical axis of the self-focusing lens; distance between the first convex lens and the self-focusing lens is 4-20mm; distance between the second biconcave lens and the first biconcave lens is 13-21mm; the distance between the first convex lens and the second convex lens ranges from 27 to 39mm; and distance between the first convex lens and the second convex lens is 0.5mm. The optical system has the focusing function of the common focusing optical system, and can ensure that the collimation and beam-expansion light spots have even energy; the total amount of the light energy of the light spots after collimation and beam expansion keeps constant; and the cost is low.
Description
Technical field
The present invention relates to a kind of green glow collimation, beam expander optical system, specifically is that a kind of even light field with self-focusing, the green glow that keeps the emergent pupil power invariability collimate, beam expander optical system.
Background technology
Existing green glow collimation, beam expander optical system, generally frequency multiplication being gone out centre wavelength is the device of the green laser pipe of 532nm as light source, as shown in Figure 1, during in position 6, the luminous energy of emergent pupil is more intense at focusing lens (concavees lens 3); During in position 7, the luminous energy of emergent pupil is understood some loss at focusing lens (concavees lens 1), and luminous energy will reduce, and the emergent pupil power of system is non-constant.
Summary of the invention
The objective of the invention is to solve existing green glow collimation, beam expander optical system owing to the light energy losses that focusing causes, cause the inconstant technical matters of emergent pupil power of system.
In order to achieve the above object, the invention provides a kind of green glow collimation, beam expander optical system, comprise GRIN Lens and be successively set on first biconcave lens, second biconcave lens, first convex lens and second convex lens on the optical axis of this GRIN Lens, its special character is that the distance of described first concavees lens and GRIN Lens is 4～20mm; Distance between described second biconcave lens and first biconcave lens is 13～21 mm; The distance range of described first convex lens and second biconcave lens is 27～39mm; The distance of described first convex lens and second convex lens is 0.2～1mm.
The outside diameter of above-mentioned GRIN Lens is 1～3mm, and its length is 1～4mm.
The outside diameter of above-mentioned first concavees lens is 6～10mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 4～20mm;
The outside diameter of described second concavees lens is 8～25mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 6～200mm;
Described first concavees lens and second concavees lens all are to make with F system in the system of the K in the crown glass material or BaK system and the flint glass or ZF system;
The outside diameter of described first convex lens and second convex lens is 18～60mm, and its radius is 10mm at least;
Described first convex lens and second convex lens all are to make with F system or ZF system in the system of the K in the crown glass material or BaK system or ZK system and the flint glass.
This optical system not only has the focusing function of common focusing optical system, and it can also make collimation and expand the light spot energy of restrainting even; Hot spot collimation and the luminous energy total amount that expands after restrainting remain unchanged; Cost is low.
Description of drawings
Fig. 1 is existing green glow collimation, beam expander optical system structural representation
Embodiment
Principle of work of the present invention is: centre wavelength is to send the green glow that centre wavelength is 532nm after the infrared semiconductor laser pipe of 808nm passes through Nd:YAG and KTP frequency multiplication, the green glow that this frequency multiplication goes out makes hot spot become big after focusing on through GRIN Lens 1, again through making hot spot further become big behind first biconcave lens 2, second biconcave lens 3, become big hot spot again through becoming collimated light behind first convex lens 4, second convex lens 5.
Based on this, referring to Fig. 1, green glow collimation provided by the present invention, beam expander optical system, comprise GRIN Lens and be successively set on first biconcave lens, second biconcave lens, first convex lens and second convex lens on the optical axis of this GRIN Lens, wherein, the distance of first concavees lens and GRIN Lens is 4～20mm; Distance between described second biconcave lens and first biconcave lens is 13～21mm; The distance range of described first convex lens and second biconcave lens is 27～39mm; The distance of described first convex lens and second convex lens is 0.2～1mm.
The outside diameter of the GRIN Lens in the system provided by the present invention is 1～3mm, and its length is 1～4mm; The outside diameter of first concavees lens is 6～10mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 4～20mm; The outside diameter of second concavees lens is 8～25mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 6～200mm; First concavees lens and second concavees lens all are to make with F system in the system of the K in the crown glass material or BaK system and the flint glass or ZF system; The outside diameter of first convex lens and second convex lens is 18～60mm, and its radius is 10mm at least; First convex lens and second convex lens all are to make with F system or ZF system in the system of the K in the crown glass material or BaK system or ZK system and the flint glass.
Claims (3)
1. green glow collimation, beam expander optical system, comprise GRIN Lens and be successively set on first concavees lens, second concavees lens, first convex lens and second convex lens on the optical axis of this GRIN Lens, it is characterized in that: the distance of described first concavees lens and GRIN Lens is 4～20mm; Distance between described second concavees lens and first concavees lens is 13～21mm; The distance range of described first convex lens and second concavees lens is 27～39mm; The distance of described first convex lens and second convex lens is 0.2～1mm.
2. green glow collimation according to claim 1, beam expander optical system, it is characterized in that: the outside diameter of described GRIN Lens is 1～3mm, its length is 1～4mm.
3. green glow according to claim 2 collimation, beam expander optical system, it is characterized in that: the outside diameter of described first concavees lens is 6～10mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 4～20mm;
The outside diameter of described second concavees lens is 8～25mm, and it simultaneously is all concave surfaces of plane another side or its two sides, and this concave is 6～200mm;
Described first concavees lens and second concavees lens all are to make with F system in the system of the K in the crown glass material or BaK system and the flint glass or ZF system;
The outside diameter of described first convex lens and second convex lens is 18～60mm, and its radius is 10mm at least;
Described first convex lens and second convex lens all are to make with F system or ZF system in the system of the K in the crown glass material or BaK system or ZK system and the flint glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219177XA CN102081233A (en) | 2009-11-27 | 2009-11-27 | Green light collimation and beam-expansion optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219177XA CN102081233A (en) | 2009-11-27 | 2009-11-27 | Green light collimation and beam-expansion optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102081233A true CN102081233A (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910219177XA Pending CN102081233A (en) | 2009-11-27 | 2009-11-27 | Green light collimation and beam-expansion optical system |
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| CN (1) | CN102081233A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425410A (en) * | 2017-07-04 | 2017-12-01 | 丹东依镭社电子科技有限公司 | One kind is secondary to expand laser module |
| CN110568588A (en) * | 2019-09-06 | 2019-12-13 | 中国科学院合肥物质科学研究院 | Beam expanding lens |
| CN114488555A (en) * | 2022-03-31 | 2022-05-13 | 武汉锐科光纤激光技术股份有限公司 | Light beam collimation device, method, apparatus, storage medium and electronic apparatus |
-
2009
- 2009-11-27 CN CN200910219177XA patent/CN102081233A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425410A (en) * | 2017-07-04 | 2017-12-01 | 丹东依镭社电子科技有限公司 | One kind is secondary to expand laser module |
| CN110568588A (en) * | 2019-09-06 | 2019-12-13 | 中国科学院合肥物质科学研究院 | Beam expanding lens |
| CN114488555A (en) * | 2022-03-31 | 2022-05-13 | 武汉锐科光纤激光技术股份有限公司 | Light beam collimation device, method, apparatus, storage medium and electronic apparatus |
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Application publication date: 20110601 |