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SOM‐based projection module for mobile displays
Author(s) -
Yang HaengSeok,
Yun SangKyeong,
Song JongHyeong,
An SeungDo,
Park HeungWoo,
Ihar Shyshkin,
Yurlov Victor,
Anatoly Lapchuk
Publication year - 2010
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid18.6.445
Subject(s) - video graphics array , speckle pattern , projection (relational algebra) , computer science , optics , schlieren , spatial light modulator , laser diode , laser , computer graphics (images) , computer vision , physics , telecommunications , chip , algorithm
— The development of a compact, efficient VGA projection module to be embedded in mobile devices is reported. The design incorporates laser/laser diode (LD) light sources, Schlieren optics, and a one‐dimensional diffractive spatial optical modulator (SOM). During development, the optical parameters were determined and the relationships between the parameters to optimize the optical specifications were derived. The resulting optimized specifications enable us to manufacture two types of optical modu les as compact as 13 cc and with as little as 10% speckle contrast ratio.