Title :
Speckle reduction using twin green laser diodes and oscillation of MEMS scanning mirror for pico-projector
Author :
Jae-Yong Lee;Tae-Ha Kim;Jong-Uk Bu;Young-Joo Kim
Author_Institution :
Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749
Abstract :
For laser pico-projector, speckle reduction was studied with twin configuration of green lasers and oscillation of MEMS scanning mirror to suppress efficiently both spatial and temporal coherence after considering tiny optical engine. From experimental results, it was confirmed that twin lasers and oscillation method could reduce the speckle contrast of 27.9% and 21.7%, respectively.
Keywords :
"Speckle","Mirrors","Oscillators","Micromechanical devices","Lasers","Measurement by laser beam","Adaptive optics"
Conference_Titel :
Microoptics Conference (MOC), 2015 20th
Print_ISBN :
978-4-8634-8487-0
DOI :
10.1109/MOC.2015.7416386
