CN103076159A - Light path system for testing light intensity of reflector - Google Patents
Light path system for testing light intensity of reflector Download PDFInfo
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- CN103076159A CN103076159A CN2013100068298A CN201310006829A CN103076159A CN 103076159 A CN103076159 A CN 103076159A CN 2013100068298 A CN2013100068298 A CN 2013100068298A CN 201310006829 A CN201310006829 A CN 201310006829A CN 103076159 A CN103076159 A CN 103076159A
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Abstract
The invention discloses a light path system for testing the light intensity of a reflector. The light path system comprises a light source, a light receptor and a semi-transparent and semi-reflective mirror, wherein the light source and the light receptor are arranged separately; horizontal light of the light source enters in a way of forming an included angle of 45 degrees together with the normal line of the semi-transparent and semi-reflective mirror, so that vertically-downward reflected light is generated; the reflected light is taken as 0-degree incident light of a tested reflector, and is reflected by the tested reflector to generate reverse 180-degree vertically-upward retro-reflection light which transmits through the semi-transparent and semi-reflective mirror; and the optical axis of the retro-reflection light is a 0-degree line as well as a standard line of a 0-degree viewing angle. Due to the adoption of the light path system, light degree testing of a minimum viewing angle alpha=0-0.2 degrees can be realized, and testing of a full-range viewing angle alpha=0-2 degrees of the reflector is realized; the light intensity performance testing and analysis of a reflector module and a product thereof at a full-range viewing angle alpha=0-2 degrees are realized, and a definite quality improving scheme is put forward; and specific to a light intensity testing system of which the testing distance is less than 2 meters, errors of the uniformity of light source spots and the V(lambda) characteristic of the light receptor can be reduced greatly.
Description
Technical field
The invention belongs to the light path system of measuring optical device.Specifically, it relates to the light path system of reverberator luminosity measurement.
Background technology
Traditional reverberator luminosity CIL value test macro, dividing by measuring distance has two kinds both at home and abroad, the measuring distance of the first from light source to tested reverberator is the large-scale optical test path of 30.48m system, it two is that measuring distance is less than the small light path test system of 2m, both principles are identical, see accompanying drawing 1, wherein viewing angle α is that tested reverberator 3 C of reference center are to the center O of light-receiving device 2
2Line and the C of reference center are to light source 1 center O
1The angle of line (α=
).The reverberator luminosity of measuring in different angles, the different quality index that has reflected reverberator, above-mentioned test macro light path arranges and exists common defective to be: see accompanying drawing 2, (1) position of light source 1 and light-receiving device 2 settings is all at same end, obviously, between light source 1 and the light-receiving device 2 because being subject to the minimum-value aperture apart from r
1+ r
2Restriction, in test during reverberator, can only test α=0.2 °～2 °, and can not test shading value and the analysis thereof of little viewing angle α=0 °～0.2 °; (2) serious shadow noon to reverberator in α=0 °～2 ° of gamut quality analyses, especially to the analysis (viewing angle characteristic) of reflector mould optical field distribution characteristic, in order to propose the really improvement project of amount.(3) the above-mentioned small-sized test macro of mentioning, the minimum-value aperture between its light source 1 and the light-receiving device 2 is apart from r
1+ r
2Only have≤7mm, because of too little to making light source 1 the hot spot homogeneity and the V(λ of light-receiving device 2) characteristic error all do very large, directly have influence on the measuring accuracy of reverberator.
Summary of the invention
Purpose of the present invention is tried out the luminosity measurement in reverberator gamut viewing angle α=0 °～2 ° at the light path system of a kind of reverberator luminosity measurement of development, can solve (1) minimum viewing angle α=0 °～0.2 ° luminosity measurement, no longer is subjected to the minimum-value aperture apart from r
1+ r
2
Restriction; (2) solving on the test basis, minimum viewing angle α=0 °～0.2 °, can realize reflector mould and products thereof is carried out test and the analysis of gamut viewing angle α=0 °～2 ° of photometric characteristics, propose the really quality improvement scheme of amount; (3) on the basis that solves minimum viewing angle α=0 °～0.2 ° of test, to short-range luminosity measurement system, the hot spot homogeneity of its light source and the V(λ of light-receiving device) characteristic can significantly reduce error, to improve the reverberator measuring accuracy; (4) on the basis that solves minimum viewing angle α=0 °～2 ° of tests, can significantly shorten the measuring distance of optical system for testing system.
The present invention realizes by following step, sees accompanying drawing 3, and it comprises, light source, light-receiving device, semi-transparent semi-reflecting lens, its spy
Levy and be: light source and light-receiving device are divided be arranged, the light of light source levels direction and the incident at 45 ° of the normal of semi-transparent semi-reflecting lens, produce reflected light vertically downward, its reflected light is as 0 ° of incident light of tested reverberator, produce reverse 180 ° of reflex reflection light transmissions vertically upward through the reflection of tested reverberator and cross semi-transparent semi-reflecting lens, the optical axis of its reflex reflection light is 0 ° of line, also is the datum line of 0 ° of viewing angle.
Good effect of the present invention and advantage: (1) has solved the luminosity measurement of minimum viewing angle α=0 °～0.2 °, can realize reverberator gamut viewing angle α=0 °～2 ° tests fully; (2) realized that reflector mould and products thereof carries out gamut viewing angle α=0 °～2 ° photometric characteristic tests and analyzes the quality improvement scheme of the true amount of proposition; (3) to the luminosity measurement system of measuring distance less than 2m, the V(λ of the homogeneity of its light source hot spot and light-receiving device) characteristic can significantly reduce error, improved the reverberator measuring accuracy; (4) measuring distance of reverberator luminosity measurement light path system of the present invention can significantly shorten from the tradition distance, reduces test macro and takes up room.
Description of drawings
Accompanying drawing 1 is reverberator luminosity CIL value test philosophy figure, wherein: 1 be light source, 2 for light-receiving device, 3 for tested reverberator,
5 is that viewing angle α, 6 is that measuring distance D, 7 is that light-receiving device moving direction, 8 is distance of center circle R;
Accompanying drawing 2 is light path schematic diagram of traditional reverberator luminosity CIL examining system, wherein: 1 be light source, 2 for light-receiving device,
3 is that tested reverberator, 5 is that viewing angle α, 6 is that measuring distance D, 7 is that light-receiving device moving direction, 8 is distance of center circle R;
Accompanying drawing 3 is light path system schematic diagram of reverberator luminosity measurement of the present invention, and wherein: 1 is that light source, 2 is light-receiving device, 3
For tested reverberator, 4 is that semi-transparent semi-reflecting lens, 5 is that viewing angle a, 6 is that measuring distance D, 7 is that light-receiving device moving direction, 8 is distance of center circle R.
Embodiment
In order better to implement and to understand the present invention, further describe by reference to the accompanying drawings, see accompanying drawing 3, the present invention is that light source 1 and light-receiving device were arranged in 2 minutes to the light path system of reverberator luminosity measurement, the normal incident at 45 ° of the irradiation light of its light source 1 horizontal direction and semi-transparent semi-reflecting lens 4, can produce two-way light, the one tunnel is that transmitted light sees through and loses; Another road is that reflected light A shines on the tested reverberator 3 vertically downward is 0 ° of incident light, the vertically upward reverse 180 ° reflex reflection light that reverberator produces and the normal incident at 45 ° of semi-transparent semi-reflecting lens 4, also produce two-way light, wherein one the tunnel is the reflected light of horizontal direction, reflexing to light source 1 loses, another road be transmitted light B vertically upward, its optical axis is 0 ° of line, also is the datum line of viewing angle α=0 °.Because light source 1 is arranged on the new position, therefore the aperture center O of its light-receiving device 2
2No longer be subjected to light source 1 and light-receiving device 2 minimum-value apertures apart from r
1With r
2Restriction, its O
2Can move on 0 ° of datum line of viewing angle by light-receiving device 2, see accompanying drawing 3 moving directions 7, realize that minimum viewing angle is 0 ° of reception.Can also realize the luminosity measurement of viewing angle gamut α=0 °～2 °.In the accompanying drawing 1,2,38 is distance of center circle, is the distance in light source 1 and light-receiving device 2 centers of circle.
It is most preferred embodiment that semi-transparent semi-reflecting lens 4 should be selected the CBP-A-VIS-T50-IF03 model, to guarantee the realization of new light path system.The tested reverberator 3 of indication of the present invention refers to the plastic optics reverberator.
Claims (1)
1. the light path system of a reverberator luminosity measurement, it comprises, light source, light-receiving device, semi-transparent semi-reflecting lens, it is characterized in that: light source and light-receiving device are divided be arranged, the light of light source levels direction and the incident at 45 ° of the normal of semi-transparent semi-reflecting lens, produce reflected light vertically downward, its reflected light is as 0 ° of incident light of tested reverberator, produce reverse 180 ° of reflex reflection light transmissions vertically upward through the reflection of tested reverberator and cross semi-transparent semi-reflecting lens, the optical axis of its reflex reflection light is 0 ° of line, also is the datum line of 0 ° of viewing angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100068298A CN103076159A (en) | 2013-01-08 | 2013-01-08 | Light path system for testing light intensity of reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100068298A CN103076159A (en) | 2013-01-08 | 2013-01-08 | Light path system for testing light intensity of reflector |
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| CN103076159A true CN103076159A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100068298A Pending CN103076159A (en) | 2013-01-08 | 2013-01-08 | Light path system for testing light intensity of reflector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841929A (en) * | 2016-04-26 | 2016-08-10 | 北京中交工程仪器研究所 | Motor vehicle reflex reflector measurement instrument |
Citations (4)
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| JP2004226257A (en) * | 2003-01-23 | 2004-08-12 | Anritsu Corp | Multi-port spectroscope and optical spectrum analyzer using the same |
| CN101479593A (en) * | 2006-05-05 | 2009-07-08 | 旭硝子北美平板玻璃公司 | Apparatus and method for angular colorimetry |
| CN101576594A (en) * | 2008-05-06 | 2009-11-11 | 大元科技股份有限公司 | Automatic optical checking equipment and light source module thereof |
| CN201852694U (en) * | 2010-11-01 | 2011-06-01 | 天津市神光新技术开发公司 | Reflector tester |
-
2013
- 2013-01-08 CN CN2013100068298A patent/CN103076159A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226257A (en) * | 2003-01-23 | 2004-08-12 | Anritsu Corp | Multi-port spectroscope and optical spectrum analyzer using the same |
| CN101479593A (en) * | 2006-05-05 | 2009-07-08 | 旭硝子北美平板玻璃公司 | Apparatus and method for angular colorimetry |
| CN101576594A (en) * | 2008-05-06 | 2009-11-11 | 大元科技股份有限公司 | Automatic optical checking equipment and light source module thereof |
| CN201852694U (en) * | 2010-11-01 | 2011-06-01 | 天津市神光新技术开发公司 | Reflector tester |
Non-Patent Citations (4)
| Title |
|---|
| 周涛等: "《中华人民共和国国家标准GB11564-2008》", 31 March 2009, 中国标准出版社 * |
| 张铁强等: "回复反射器配光性能测试系统研究", 《仪器仪表学报》 * |
| 徐欣锋等: "简易修正角误差的回复反射器CIL测试系统", 《电子·激光》 * |
| 李真等: "回复反射器的理论", 《汽车技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841929A (en) * | 2016-04-26 | 2016-08-10 | 北京中交工程仪器研究所 | Motor vehicle reflex reflector measurement instrument |
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Application publication date: 20130501 |