Recent years, LED technology as well as its applications grow very fast, which deserve more attention to the hazard of LED radiation. The spectral integrated radiances are important parameters in hazard analysis of LED radiation. However, traditional spectral luminance meters are not able to be used to determine spectral integrated radiances in accordance with IEC 62471. Therefore, a novel photobiological safety measurement system, which consists of a CCD imaging meter, a temporal spectroradiometer, a rotating mechanism with motor-drivable horizontal axis and the vertical axis, and an optical bench (8m) is introduced. The CCD imaging meter is installed on a retinal radiance meter whose field of view and aperture angle are fixed, can be used to determine the radiance distribution of the apparent source and the maximum radiance over specified field of view in accordance with IEC 62471. The temporal spectroradiometer is used to correct the spectral response of the CCD unit, determine the spectral integrated irradiance, and can also be used to determine the waveform and pulse duration at 1MHz sampling frequency.
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ILSC 2009: Proceedings of the International Laser Safety Conference
March 23–26, 2009
Reno, Nevada, USA
ISBN:
978-0-912035-24-6
PROCEEDINGS PAPER
Assessment of LED’s radiation safety Available to Purchase
Mou Tongsheng;
Mou Tongsheng
1
Optical Engineering Department of Zhejiang University
, Hangzhou, China
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Yu Jiandong
Yu Jiandong
2
Zhejiang University Sensing Instruments Co., Ltd
, Hangzhou, China
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Published Online:
March 01 2009
Citation
Mou Tongsheng, Yu Jiandong; March 23–26, 2009. "Assessment of LED’s radiation safety." Proceedings of the ILSC 2009: Proceedings of the International Laser Safety Conference. ILSC 2009: Proceedings of the International Laser Safety Conference. Reno, Nevada, USA. (pp. pp. 329-333). ASME. https://doi.org/10.2351/1.5056707
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