A new laser illumination system was designed based on the analysis of regular homogenization technology. It was widely used in the field of security without sunlight and other lighting. The new laser illumination system used eccentric motor to drive a light shaping scatterer to vibrate at a frequency that faster than the electronic shutter of cameras, making multiple light superimposed in integration time to form a uniform illumination effect. The laser illumination system can eliminate interference fringes and laser speckles, and realize the purpose of homogenization illumination. Experimental results show that the new laser illumination system makes the energy efficiency reach up to 90% and the illumination uniformity reach up to 94% in the effective area. The new laser illumination system improves the uniformity of illumination and utilization rate of laser energy, thus improves the image quality of the illuminated target.

Date Published: 19 October 2016
PDF: 8 pages
Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 1015408 (19 October 2016); doi: 10.1117/12.2243984

Published in SPIE Proceedings Vol. 10154:
Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation
Min Xu; Ji Yang, Editor(s)