CN204065561U - The dodging device of coupling fiber formula semiconductor laser - Google Patents
The dodging device of coupling fiber formula semiconductor laser Download PDFInfo
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- CN204065561U CN204065561U CN201420450770.1U CN201420450770U CN204065561U CN 204065561 U CN204065561 U CN 204065561U CN 201420450770 U CN201420450770 U CN 201420450770U CN 204065561 U CN204065561 U CN 204065561U
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- semiconductor laser
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- coupling fiber
- formula semiconductor
- eye lens
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Abstract
A dodging device for coupling fiber formula semiconductor laser, comprise arrange along light path order coupling fiber formula semiconductor laser light resource, collimation lens, the first fly's-eye lens, the second fly's-eye lens, condenser and irradiation face; Coupling fiber formula semiconductor laser light resource is placed in the focus of collimation lens, and in the focus being centrally located at lenslet corresponding to the first fly's-eye lens of each lenslet of the second fly's-eye lens, irradiation face is arranged on the focal plane of condenser.The utility model can the homogeneity of improvement coupling fiber formula semiconductor laser output facula of high degree, meets the photoluminescence testing requirement of solar cell piece.
Description
Technical field
The utility model relates to optical instrument, particularly relates to the coupling fiber formula semiconductor laser dodging device in a kind of solar cell checkout equipment.
Background technology
May be there is the defect of material itself as crystal defect, fragment, material contamination etc. in solar cell piece, these defects can make the performance degradation of solar cell in the use that solar cell is follow-up, so need to be detected in early stage.At present, the detection method of photoluminescence effectively can detect the defect of the material existed in solar cell piece itself, and the light source that this method adopts is monochromatic laser light source, and the intensity of LASER Light Source needs to reach 150mw/cm
2, solar cell piece is of a size of 156mm × 156mm, considers the loss of laser energy, and the power of LASER Light Source at least needs to reach 50W, therefore needs to adopt coupling fiber formula semiconductor laser.Detection method due to photoluminescence requires that the homogeneity of laser facula is more than 95%, and the hot spot that coupling fiber formula semiconductor laser directly exports is the Gaussian distribution that centre is bright, edge is dark, and its homogeneity only can reach 40%, therefore the research of coupling fiber formula semiconductor laser dodging device is very important.
Utility model content
The purpose of this utility model, exactly in order to provide a kind of dodging device of coupling fiber formula semiconductor laser, to realize using the detection method of photoluminescence to detect solar cell.
In order to achieve the above object, the utility model have employed following technical scheme: a kind of dodging device of coupling fiber formula semiconductor laser, comprise arrange along light path order coupling fiber formula semiconductor laser light resource, collimation lens, the first fly's-eye lens, the second fly's-eye lens, condenser and irradiation face; Coupling fiber formula semiconductor laser light resource is placed in the focus of collimation lens, and in the focus being centrally located at lenslet corresponding to the first fly's-eye lens of each lenslet of the second fly's-eye lens, irradiation face is arranged on the focal plane of condenser.
Coupling fiber formula semiconductor laser light resource becomes a branch of parallel beam parallel with optical axis after collimation lens, parallel beam focuses on the center of the second fly's-eye lens after the first fly's-eye lens, namely light source is formed multiple light source and throws light on by the first fly's-eye lens, lenslet overlapping imaging corresponding for first fly's-eye lens on irradiation face, makes irradiation face obtains uniform light spots by each lenslet of the second fly's-eye lens.
Coupling fiber formula semiconductor laser dodging device of the present utility model can the homogeneity of improvement coupling fiber formula semiconductor laser output facula of high degree, meets the photoluminescence testing requirement of solar cell piece.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dodging device of coupling fiber formula semiconductor laser of the present utility model.
Embodiment
See Fig. 1, the dodging device of coupling fiber formula semiconductor laser of the present utility model, comprise arrange along light path order coupling fiber formula semiconductor laser light resource 1, collimation lens 2, first fly's-eye lens 3, second fly's-eye lens 4, condenser 5 and irradiation face 6.Coupling fiber formula semiconductor laser light resource 1 is placed in the focus of collimation lens 2, and in the focus being centrally located at the lenslet of the first fly's-eye lens 3 correspondence of each lenslet of the second fly's-eye lens 4, irradiation face 6 is arranged on the focal plane of condenser 5.
The principle of work of the dodging device of the utility model coupling fiber formula semiconductor laser is, coupling fiber formula semiconductor laser light resource 1 forms a branch of parallel beam parallel with optical axis after collimation lens 2, light beam focuses on the center of the second fly's-eye lens 4 after the first fly's-eye lens 3, namely light source is formed multiple light source picture and throws light on by the first fly's-eye lens 3, each lenslet of the second fly's-eye lens 4 by the lenslet overlapping imaging of the first fly's-eye lens 3 correspondence on irradiation face.Because the whole angle pencil of ray of light source is divided into multiple light pencil to throw light on by the first fly's-eye lens 3, and the small unevenness within the scope of each light pencil is owing to being in the mutual superposition of symmetric position light pencil, the small unevenness of light pencil is obtained compensate, thus the luminous energy in whole aperture is utilized effectively and uniformly.Be gathered in irradiation face 6 from the hot spot of the second fly's-eye lens 4 outgoing by condenser 5, on irradiation face, the every bit of hot spot is all subject to the irradiation that coupling fiber formula semiconductor laser light resource sends a little, simultaneously, the light beam that on coupling fiber formula semiconductor laser light resource, every bit sends again all intersection overlap in the same field range on irradiation face, thus obtain a uniform irradiation face, meet the photoluminescence testing requirement of solar cell piece.
Claims (1)
1. a dodging device for coupling fiber formula semiconductor laser, is characterized in that: comprise arrange along light path order coupling fiber formula semiconductor laser light resource, collimation lens, the first fly's-eye lens, the second fly's-eye lens, condenser and irradiation face; Coupling fiber formula semiconductor laser light resource is placed in the focus of collimation lens, and in the focus being centrally located at lenslet corresponding to the first fly's-eye lens of each lenslet of the second fly's-eye lens, irradiation face is arranged on the focal plane of condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450770.1U CN204065561U (en) | 2014-08-11 | 2014-08-11 | The dodging device of coupling fiber formula semiconductor laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450770.1U CN204065561U (en) | 2014-08-11 | 2014-08-11 | The dodging device of coupling fiber formula semiconductor laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065561U true CN204065561U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420450770.1U Active CN204065561U (en) | 2014-08-11 | 2014-08-11 | The dodging device of coupling fiber formula semiconductor laser |
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| CN (1) | CN204065561U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991258A (en) * | 2015-07-16 | 2015-10-21 | 哈尔滨工业大学 | Infrared laser light uniformizing illumination detecting system |
| CN105511087A (en) * | 2016-01-13 | 2016-04-20 | 晋煤激光科技股份有限公司 | Fly's-eye lens-based laser display shimming shaping device |
| CN107102503A (en) * | 2016-02-19 | 2017-08-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | Eliminate the light-source system and projection arrangement of laser speckle |
| WO2018032857A1 (en) * | 2016-08-18 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Display system |
-
2014
- 2014-08-11 CN CN201420450770.1U patent/CN204065561U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991258A (en) * | 2015-07-16 | 2015-10-21 | 哈尔滨工业大学 | Infrared laser light uniformizing illumination detecting system |
| CN105511087A (en) * | 2016-01-13 | 2016-04-20 | 晋煤激光科技股份有限公司 | Fly's-eye lens-based laser display shimming shaping device |
| CN107102503A (en) * | 2016-02-19 | 2017-08-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | Eliminate the light-source system and projection arrangement of laser speckle |
| WO2018032857A1 (en) * | 2016-08-18 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Display system |
| CN107765495A (en) * | 2016-08-18 | 2018-03-06 | 深圳市光峰光电技术有限公司 | A kind of display system |
| CN107765495B (en) * | 2016-08-18 | 2019-10-25 | 深圳光峰科技股份有限公司 | A kind of display system |
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