Projection type video display

Details Projection type video display Projection type video display

2007-02-27

2011-11-01

Lee, Michael (Department: 2422)

Television

Video display

Projection device

C348S746000, C348S750000, C348S756000, C348S758000, C348S806000, C353S030000, C353S069000

Reexamination Certificate

active

08049822

ABSTRACT:
There are provided a write light valve for generating image-writing light by modulating write light, a driver for writing images into the write light valve based on image data, read light valves for each color for generating respective color image lights by modulating each received color illumination light, an imaging lens group for guiding the image-writing light emitted from the write light valve to the respective read light valves, a dichroic cube for combining together color image lights emitted from the respective read light valves, a projection lens for projecting each color image light combined together. The imaging lens group has a distortion aberration which reduces or cancels out a distortion aberration of the projection lens.

REFERENCES:
patent: 5795047 (1998-08-01), Sannohe et al.
patent: 2003-078842 (2003-03-01), None
patent: 2003315916 (2003-11-01), None
patent: 2004-245956 (2004-09-01), None
patent: WO 2005/116719 (2005-08-01), None

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