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| Method and Apparatus for Calibrating Contact-type Luminance Meter |
| LU Li-gen1,ZHANG Bao-zhou1,CHEN Chi2,LIU Jian 2,ZENG Shan-shan1,HAN Qiang-sheng1 |
1. Department of Astronomy, Beijing Normal University, Beijing 100875, China
2. National Institute of Metrology, Beijing 100029, China |
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Abstract The structure, measuring principle and applying properties of a contact-type luminance meter are described. And a light source which can provide a uniform diffuse surface is presented and applied to calibrate three contact-type luminance meters. In comparison with the luminance standard in National Institute of Metrology for verifying contact-type luminance meters, this calibrating method shows good traceability and accurate certified value. Finally, the practicality of applying several commonly diffuse surfaces to calibrate contact-type luminance meters is discussed briefly.
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Received: 19 August 2014
Published: 22 March 2016
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Corresponding Authors:
Bao-Zhou ZHANG
E-mail: zhangbzh@bnu.edu.cn
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2016, Vol. 37 
