AL Huang - US Patent 6,781,640, 2004 - Google Patents
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K Aoto, K Yanagawa - US Patent 6,454,416, 2002 - Google Patents
A color liquid crystal projector has an optical system for color splitting. The optical system includes a mirror for reflecting a first primary-color light and transmitting second and third …
AP Minich, L Shapiro - US Patent 5,517,263, 1996 - Google Patents
An image projection system includes a bright light source of polarized light, and in one form of the invention, a spatial light modulator, having an alignment layer, to modulate the …
JF Goldenberg, JD Eskin - US Patent 4,913,529, 1990 - Google Patents
An illumination system for an LCD projection display system to increase the brightness of the system. The system includes a polarizing beam splitter which splits a beam of light from a …
K Ueda, T Miyake - US Patent 5,852,479, 1998 - Google Patents
A liquid crystal projector includes a light source for generating light; a liquid crystal display device for modulating the light; a projection optical system for projecting light modulated by …
T Shimazaki - US Patent 4,722,593, 1988 - Google Patents
(57) ABSTRACT A liquid-crystal projector reduces outer portions of a light beam corresponding to a projection image from a liquid-crystal display panel illuminated with light …
L Li - US Patent App. 13/243,871, 2013 - Google Patents
BACKGROUND 0001 Embodiments of the present invention are related generally to the field of projection light engines and, more particularly, to apparatuses and methods for high …
KK Li - US Patent App. 12/638,486, 2010 - Google Patents
In response to these needs, the present invention uses a waveguide system to perform the polarization recovery function in an LCD projection system. In particular, the present …
S Yamazaki, Y Hirakata, J Koyama… - US Patent …, 2010 - Google Patents
An image display system comprises a first liquid crystal pro jector which projects a counterclockwise-rotating, circularly polarized light beam to form an image containing …