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Proceedings Paper

Efficient suppression of the laser speckle in the laser projection system
Author(s): Yunfang Zhang; Hui Dong; Hui Li; Jingyuan Duan; Ancun Shi; Qing Fang; Yuliang Liu
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Paper Abstract

In this paper, we design a high power and small volume laser source module using the laser diode array for the laser projector system. This module can efficiently suppress speckle noise by reducing the phase coherence using laser diode array. In addition, we use the rotating diffuser to further disturb the coherence of the lasers for lower speckle noise. The experimental results show that the laser source module and the rotating diffuser can effectively eliminate the speckle noise. This new light module with laser diode array can be used in the laser projection system with high brightness, small volume and low speckle noise.

Paper Details

Date Published: 15 November 2011
PDF: 7 pages
Proc. SPIE 8335, 2012 International Workshop on Image Processing and Optical Engineering, 833512 (15 November 2011); doi: 10.1117/12.917529
Show Author Affiliations
Yunfang Zhang, Institute of Semiconductors (China)
Hui Dong, Institute of Semiconductors (China)
Hui Li, Institute of Semiconductors (China)
Jingyuan Duan, Institute of Semiconductors (China)
Ancun Shi, Institute of Semiconductors (China)
Qing Fang, Institute of Semiconductors (China)
Yuliang Liu, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8335:
2012 International Workshop on Image Processing and Optical Engineering
Hai Guo; Qun Ding, Editor(s)

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