Display device using intersecting optical beams

Computer graphics processing and selective visual display system – Plural physical display element control system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

345 6, 345 32, 345 85, 345147, 348 59, 430945, G09G 300, G09G 500

Patent

active

058184007

ABSTRACT:
A display device that includes a display medium having a planar display area over which an image is generated, a first and second optical point beam each directed in the display medium coplanar with the planar display area, and beam controllers that scan each of the optical point beams to selectively interfere in the display area within a region defined by the intersection of the optical point beams to produce an intensity in the region that has enhanced visibility relative to the individual optical beams propagating in the display medium outside of the region. The beam controller may be an elongated reflector having a reflecting surface upon which a linear array of liquid crystal modulators are controlled to selectively transmit segments of a linear beam incident on the linear array, in order to provide the optical beam by selectively reflecting segments of the linear optical beam into the display medium. The beam controllers include electronic circuitry to scan the optical beams according to a video input signal. The display device preferably employs a laser as the source of the optical point beams.

REFERENCES:
patent: 2604607 (1952-07-01), Howell
patent: 4078229 (1978-03-01), Swainson et al.
patent: 4288861 (1981-09-01), Swainson et al.
patent: 4881068 (1989-11-01), Korevaar et al.
patent: 4978952 (1990-12-01), Irwin
patent: 5036385 (1991-07-01), Eichenlaub
patent: 5040878 (1991-08-01), Eichenlaub
patent: 5214419 (1993-05-01), DeMond et al.
patent: 5287096 (1994-02-01), Thompson et al.
patent: 5313479 (1994-05-01), Florence
patent: 5394262 (1995-02-01), Anderson
patent: 5410345 (1995-04-01), Eichenlaub
patent: 5438453 (1995-08-01), Kuga
patent: 5452024 (1995-09-01), Sampsell
patent: 5453859 (1995-09-01), Sannohe et al.
patent: 5506597 (1996-04-01), Thompson et al.
patent: 5589852 (1996-12-01), Thompson et al.
International Search Report of Jul. 3, 1997, for counterpart International Application No. PCT/US97/05719.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Display device using intersecting optical beams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device using intersecting optical beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device using intersecting optical beams will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-83297

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.