Monitorless video projection system

Details Monitorless video projection system Monitorless video projection system

1995-11-02

1997-08-19

Dowling, William

Optics: image projectors

Miscellaneous

G03B 2114

Patent

active

056580630

ABSTRACT:
A monitorless video projection device (10) for projecting video images (22) onto a surface (24) which is resident in a portable computer (12), a keyboard (54) or projection display unit (72) of a desktop computer (66), a hand-held television (98) or a wireless communication device (85), comprising a digital light processing system (112) which includes a light source (114) that provides incident light (116) to a semiconductor light switch (124) having a plurality of micromirrors (126) for receiving and reflecting the light, a color filter (120) between the light source (114) and the semiconductor light switch (124) and an imaging lens (20) for projecting the light reflecting off the micromirrors (126) onto an existing surface (24), thereby displaying video image (22).

REFERENCES:
patent: 5091873 (1992-02-01), Araki
patent: 5187510 (1993-02-01), Vogeley et al.
patent: 5218389 (1993-06-01), Harlan et al.
patent: 5262926 (1993-11-01), Hall
patent: 5442414 (1995-08-01), Janssen et al.
patent: 5461437 (1995-10-01), Tanaka et al.
patent: 5483250 (1996-01-01), Herrick
patent: 5510806 (1996-04-01), Busch

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