Mr. Yang Li Profile

Yang Li

at AVIC Aerospace Life-Support Industries

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Proceedings Article | 18 December 2019 Paper

Development of photoelectric parameter test system for anti-glare PLZT goggles

Junyi Chen, Ainong Xiao, Yang Li, Sha Luo, Danfeng Wu, Yanan Zeng

Proceedings Volume 11338, 1133807 (2019) https://doi.org/10.1117/12.2540431

KEYWORDS: Goggles, Control systems, Light sources, Sensors, Transmittance, Signal detection, Time metrology, Light emitting diodes, Integrating spheres, Data processing

Read Abstract +

PLZT is an excellent electro-optic material. The anti-glare goggles composed of PLZT and driving circuit have a good application in strong laser protection. With the increasing popularity of anti-glare PLZT goggles, the measurement of the photoelectric parameters of PLZT goggles becomes important. This article aims to develop an optoelectronic parameter measuring system for the anti-glare PLZT goggles. When the change of the illuminance or the illuminance of the light incident on the PLZT surface reaches a certain threshold, the PLZT driving circuit quickly controls the change of the working state of the PLZT and reduces the light transmittance of the PLZT. Avoid blindness or eyes burns during strong flashes. After the strong flash is over, the light transmittance can be automatically restored to normal conditions within a certain period of time. In this paper, the integrating sphere and high-power LED are used as the light source to generate uniform glare, and the microcontroller is used to control the output optical power. Two output windows are arranged on the integrating sphere, one is used to detect the actual output illuminance of the integrating sphere, that is the illuminance of the surface incident on the PLZT surface, and the PLZT to be detected is placed after the other window, and the illuminance after entering the PLZT is detected. Two photodiodes are used to detect the illuminance of the two beams, and the two results are used to calculate the light transmittance and change time through the PLZT.

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