Television – Video display – Projection device
Patent
1996-10-04
1999-09-28
Chin, Tommy P.
Television
Video display
Projection device
348750, 348752, 348754, H04N 931
Patent
active
059597020
ABSTRACT:
A video projector employs an acousto-optic deflector for moving a horizontal line of pixels vertically to form an image on a remote screen. Because the pixel images are formed from parallel beams, rather than by reimaging a line of pixel images on a vertical deflector, the image formed is in focus at all screen distances. The horizontal line of pixels is formed from a single laser beam which is expanded laterally and passes through individual intensity modulators before being aimed at the vertical deflector. The horizontal line of beams may be divided into zones, one above the other, and later reorganized into a single line at the vertical deflector, in order to reduce the size of the projector.
REFERENCES:
patent: Re29670 (1978-06-01), Spaulding
patent: 3383460 (1968-05-01), Pritchard
patent: 3436546 (1969-04-01), Derderian
patent: 3507984 (1970-04-01), Stavis
patent: 3514534 (1970-05-01), Korpel
patent: 3597536 (1971-08-01), Fowler
patent: 3710015 (1973-01-01), Fowler
patent: 3758195 (1973-09-01), Hedman, Jr. et al.
patent: 3783185 (1974-01-01), Spaulding
patent: 3869197 (1975-03-01), Owens et al.
patent: 3882273 (1975-05-01), Knox
patent: 3917380 (1975-11-01), Kato et al.
patent: 4054361 (1977-10-01), Noguchi
patent: 4297723 (1981-10-01), Whitby
patent: 4371964 (1983-02-01), Podmaniczky et al.
patent: 4614408 (1986-09-01), Mir et al.
patent: 4835601 (1989-05-01), Kobayashi
patent: 5144337 (1992-09-01), Imamura et al.
patent: 5148285 (1992-09-01), Nakame et al.
patent: 5173958 (1992-12-01), Folsom et al.
patent: 5255082 (1993-10-01), Tamada
patent: 5317162 (1994-05-01), Pinsky et al.
patent: 5703702 (1997-12-01), Crane et al.
patent: 5844716 (1998-12-01), Anderson
Hoya Corporation, Large-Screen Projection Television--Scans Screen Sections With Video Image Light Beams From Acousto-Optic Modulators To Which Partioned Signals Are Input, Search Entry Document Only, JP 03284078 A, Dec. 1991.
Chin Tommy P.
Chu Dinh Cao Peter
Shapiro Herbert M.
LandOfFree
Lensless video projector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lensless video projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lensless video projector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-709466