Color projection display apparatus

Details Color projection display apparatus Color projection display apparatus

1999-03-25

2000-09-12

Dowling, William

Optics: image projectors

Composite projected image

Multicolor picture

353 37, 349 8, G03B 2128

Patent

active

061167398

ABSTRACT:
A color projection display apparatus has a white light source, splitting means, a reflective color display device and projecting means. The splitting means splits a white luminous flux from the white light source into a plurality of luminous fluxes of different wavelength ranges, and from which luminous fluxes corresponding to the wavelength ranges exit in different directions. The reflective color display device modulates and reflects the luminous fluxes corresponding to the wavelength ranges which luminous fluxes exit from the splitting means and are incident from different directions. The projecting means projects the luminous fluxes modulated by the reflective color display device as image light. The luminous fluxes modulated and reflected by the reflective color display device are incident on the projecting means after being again transmitted by the splitting means.

REFERENCES:
patent: 5633737 (1997-05-01), Tanaka et al.
patent: 5726719 (1998-03-01), Tanaka et al.
patent: 5737040 (1998-04-01), Ichikawa et al.
patent: 5852479 (1998-12-01), Ueda et al.
patent: 5859675 (1999-01-01), Ogino
patent: 5897190 (1999-04-01), Takahashi
patent: 6020940 (2000-02-01), Ishikawa et al.
patent: 6022110 (2000-02-01), Tsujikawa

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