Time-sequential colour projection

Details Time-sequential colour projection Time-sequential colour projection

2008-07-29

2008-07-29

Koval, Melissa Jan (Department: 2862)

Optics: image projectors

Composite projected image

Multicolor picture

C353S094000, C353S102000, C349S005000, C349S007000, C349S008000, C348S742000

Reexamination Certificate

active

07404644

ABSTRACT:
A time-sequential colour projector comprises a pixellated light valve (2), such as a liquid crystal device, and a plurality of light sources (30, 31, 32). The light sources (30, 31, 32) direct light on different sets of pixels of the light valve (2) via an optical system (1), such as a lens array, which focuses the light on pixels of the light valve (2). At least two of the light sources (30, 31, 32) are multiple colour light sources and the multiple colour light sources emit different colour components during each set of frames making up a complete image frame.

REFERENCES:
patent: 5428366 (1995-06-01), Eichenlaub
patent: 7159987 (2007-01-01), Sakata
patent: 7165845 (2007-01-01), Takeda et al.
patent: 2003/0214633 (2003-11-01), Roddy et al.
patent: 1166881 (1997-12-01), None
patent: 1451240 (2003-10-01), None
patent: 08-076078 (1996-03-01), None
patent: 97/13175 (1997-04-01), None
patent: 02/19725 (2002-03-01), None
Chinese Office Action for corresponding Application No. 200510083786.9 dated Feb. 16, 2007(English translation).

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