Test of the divergence angle of a glass bead Scotchlite retroreflector
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Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
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Corresponding author:
ZHAO Dong-e, zhaodonge@nuc.edu.cn
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Received Date:
2012-04-24
Accepted Date:
2012-09-06
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Abstract
To test the divergence angle of a glass bead Scotchlite retroreflector, after utilizing a CMOS high-speed camera to take photos of laser spots imaged on a piece of parchment paper reflected by the glass bead Scotchlite retroreflector, the images of laser spots were processed and the divergence angle was calculated according to a certain geometric proportion. The divergence range of the retroreflector was 0.907°~0.956°.Results show that the test method is reasonable and has certain practical value.
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Proportional views
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