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63‐1: Speckle Reduction for Laser Pico‐projector with Dynamic Deformable Mirrors
Author(s) -
Tsao Che-Wei,
Chen Hsuan-An,
Pan Jui-Wen,
Yang Zu-Po
Publication year - 2018
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12280
Subject(s) - speckle pattern , diffuser (optics) , speckle noise , projector , optics , reduction (mathematics) , laser , divergence (linguistics) , physics , materials science , computer science , mathematics , light source , geometry , linguistics , philosophy
This research focuses on speckle noise suppression by changing the angle of divergence of the diffuser. Three types of diffuser designs are compared in the experiments. For all three types, the speckle contrast value is lower than 0.027, and the speckle phenomenon is invisible to the human eye.