標題: A hybrid temporal and spatial speckle-suppression method for laser displays
作者: Deng, Qing-Long
Lin, Bor-Shyh
Wu, Pei-Jung
Chiu, Kuan-Yao
Fan, Ping-Lin
Chen, Chien-Yue
光電系統研究所
影像與生醫光電研究所
Institute of Photonic System
Institute of Imaging and Biomedical Photonics
公開日期: 16-十二月-2013
摘要: We propose a system that reduces laser display speckles by vibrating the light pipe. A small displacement of the light pipe appears to allow the total reflection of the laser, thereby resulting in a homogenized speckle field that changes with time. In this case, the speckle interference generated by the pattern projected by the laser through the light pipe destroys the spatial homogenization of the laser beams when the light pipe is vibrated. Moreover, when the light pipe begins the sequential vibration, the phases and paths of the beams are changed after the beams traverse the light pipe. Consequently, temporal speckle wavefront superposition can homogenize the luminous intensity distribution of the speckle pattern. This process reduces the speckle contrast to less than 4% while maintaining a luminous intensity of greater than 70%. (C) 2013 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.21.031062
http://hdl.handle.net/11536/23409
ISSN: 1094-4087
DOI: 10.1364/OE.21.031062
期刊: OPTICS EXPRESS
Volume: 21
Issue: 25
起始頁: 31062
結束頁: 31071
顯示於類別:期刊論文


文件中的檔案:

  1. 000328575700089.pdf