Television – Video display – Projection device
Patent
1992-05-04
1995-01-10
Powell, Mark R.
Television
Video display
Projection device
H04N 574
Patent
active
053811887
ABSTRACT:
The present invention offers a display system for displaying information comprising a linear array of N light-emitting devices emitting light of predetermined wavelength, the devices are arranged respectively with N pixels, a stream of the information is divided into pieces each of which containing the N pixels, and the N light-emitting devices are caused to emit N light beams simultaneously in a form of array during a given period for every divided piece of the information, the every divided piece of information may correspond to one line of a frame of picture, the N light beams are intensity-modulated respectively with the divided piece of the information, the N light beams are deflected simultaneously in a direction perpendicular to a direction of the array of the N light beams, and a spatial light modulator having a photoconductive layer and a light modulation layer interposed between a pair of electrodes, the photoconductive layer is responsive to the deflected N light beams incident thereto through a focusing lens as a writing light, and a reading light of visible wavelength which is shorter than the predetermined wavelength of the emitted light from the linear array of the N light-emitting devices, the reading light irradiates the photomodulation layer of the spatial light modulator to read out and display the written information thereon.
REFERENCES:
patent: 3971931 (1976-07-01), Jehle
patent: 4150396 (1979-04-01), Hareng et al.
patent: 4945423 (1990-07-01), Takanashi et al.
"Video-Rate Liquid-Crystal Light-Valve Using an Amorphous Silicon Photoconductor" from the SID 90 Digest, pp. 327-329.
U.S. Ser. No. 702,817.
Xerox Disclosure Journal vol. 1, No. 11, 1976, Stamford, Conn., entitled "Optical Display".
IBM Technical Disclosure Bulletin vol. 19, No. 6, New York, N.Y. pp. 2266-2267, entitled "Photoconductor Liquid Crystal Cell".
Konno Toshio
Maeno Keiichi
Nakagaki Shintaro
Negishi Ichiro
Suzuki Tetsuji
Meller Michael N.
Powell Mark R.
Victor Company of Japan Ltd.
LandOfFree
Light to light modulator with reading light of specified wavelen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light to light modulator with reading light of specified wavelen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light to light modulator with reading light of specified wavelen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-854267