Television – Video display – Projection device
Patent
1994-09-23
1996-01-23
Groody, James J.
Television
Video display
Projection device
348205, 348752, 359204, 359634, H04N 931
Patent
active
054868785
ABSTRACT:
In a color image display apparatus, light beams intensity modulated by a green color image signal are deflected by an ocillating mirror, and then focused on a photo-conductive layer (PCL) member of a light-written type spacial light modulation element (SLM) through two focusing lenses for light write operation. Light beams intensity modulated by a time-axis compressed time-divisional image signal of two remaining colors (red and blue) are deflected by another mirror oscillated simultaneously with the ocillating mirror, and then focused on a PCL member of a SLM of the same type through two focusing lenses for light write operation. A read light beam is resolved into the light of the green wave length band and the lights of red and blue wave length bands, respectively, and then given to the SLMs, respectively for light read operation. The two read light beams reflected by the SLMs are synthesizing, and then projected on a screen through a common projection lens.
REFERENCES:
patent: 4687301 (1987-08-01), Ledebuhr
patent: 4807976 (1989-02-01), Little et al.
patent: 5305146 (1994-04-01), Nakagaki et al.
Bonde Hiroyuki
Konno Toshio
Koyama Fujiko
Negishi Ichiro
Shou Toshiaki
Groody James J.
Murrell Jeffrey S.
Victor Company of Japan Ltd.
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