Projection-type display device

Details Projection-type display device Projection-type display device

1991-02-08

1993-08-31

Arnold, Bruce Y.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 62, 359634, 358 61, G02B 2710, G02F 11335, H04N 931

Patent

active

052414078

ABSTRACT:
A projection-type display device having a single light source which produces light. A first dichroic mirror group receives the light and separates it into colored light. A transmissive light valve system modulates the colored light and a second dichroic mirror group synthesizes the modulated colored light. A projection system projects the synthesized colored light onto a screen.

REFERENCES:
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patent: 3910680 (1975-10-01), Kakeda
patent: 4191456 (1980-03-01), Hong et al.
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patent: 4715684 (1987-12-01), Gagnon
patent: 4739396 (1988-04-01), Hyatt
Morozumi et al; "B/W and Color LC Video Displays addressed by Poly Si TFT's " Society for Informational Display; pp. 24-27, 1975.

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