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20.1: Design and Performance of High Contrast Polarized Light Front‐Projection Screens
Author(s) -
Wolfe C. Robert,
Paukshto Michael,
Smith Peter
Publication year - 2004
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 - 10.1889/1.1821401
Subject(s) - optics , brightness , high contrast , contrast (vision) , projection (relational algebra) , front (military) , materials science , contrast ratio , liquid crystal display , optoelectronics , physics , computer science , algorithm , meteorology
We describe design and performance of bright, high‐contrast front‐projection screens, which are optimized for use in unpolarized ambient light. These screens use polarized LCD projectors and have a Thin Crystalline Film (TCF) polarizing layer that absorbs ambient light to increase contrast. Screen gain and reflectivity control viewing angle and brightness.