Spatial light modulator projection system with random polarity light

Patent 5214420 Issued on May 25, 1993. Estimated Expiration Date:

June 26, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3474248

3576394

3918002

Solid state television channel selection system
Patent #: 3968440
Issued on: 07/06/1976
Inventor: Ehni, III

Illumination control system
Patent #: 3986022
Issued on: 10/12/1976
Inventor: Hyatt

Real three-dimension visual display arrangement
Patent #: 4023158
Issued on: 05/10/1977
Inventor: Corcoran

Solid state television channel selection system
Patent #: 4031474
Issued on: 06/21/1977
Inventor: Ehni, III , et al.

Method, medium and apparatus for producing three-dimensional figure product
Patent #: 4041476
Issued on: 08/09/1977
Inventor: Swainson

Three-dimensional display devices
Patent #: 4063233
Issued on: 12/13/1977
Inventor: Rowe

Three dimensional systems
Patent #: 4078229
Issued on: 03/07/1978
Inventor: Swanson, et al.

More ...

Inventors

Assignee

Texas Instruments Incorporated

Application

No. 725231 filed on 06/26/1991

US Classes:

345/6Three-dimensional arrays

Examiners

Primary: Brier, Jeffery

Attorney, Agent or Firm

Reed; Julie L., Kesterson; James C., Donaldson; Richard L.

Foreign Patent References

0069226 EP. 05/22/1982

International Class

G09G 003/00

Abstract

A visual display system having a spatial light modulator with individually controllable elements. Each element capable of producing an individual light beam directed toward a display surface. A source of random polarity light is utilized to direct light onto the modulator.

Other References

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