Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1993-02-22
1996-05-28
Epps, Georgia Y.
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359259, 359263, G02B 2600
Patent
active
055217460
ABSTRACT:
A surface deformation type spatial light modulator is electronically addressed by an active matrix array affixed to a second surface of an insulating substrate. Optically reflective electrodes are affixed to the substrate. Each electrode is electrically connected to a respective electronic addressing element by a feedthrough. Overlapping each electrode is a transmissive deformable media layer. Affixed to a first media layer face of the media layer is a transmissive conductor. A potential control is provided to control the potential difference between each electrode and the conductor in accordance with an information bearing signal. A wavefront to be modulated traverses the media, impinges on the electrodes, traverses the media layer a second time before exiting the modulator. Several advantages exist in the invention including increasing the modulation sensitivity of electronic addressed surface deformation type spatial light modulators.
REFERENCES:
patent: 3137762 (1964-06-01), Baumgartner et al.
patent: 3480348 (1969-11-01), Preston, Jr.
patent: 3626084 (1971-12-01), Whol
patent: 3654606 (1972-04-01), Marlowe et al.
patent: 3835346 (1974-09-01), Mast et al.
patent: 3879630 (1975-04-01), Halperin et al.
patent: 3905683 (1975-09-01), Roach et al.
patent: 4013345 (1977-03-01), Roach
patent: 4233603 (1980-11-01), Castleberry
patent: 4494826 (1985-01-01), Smith
patent: 4626920 (1986-12-01), Glenn
patent: 4694287 (1987-09-01), Chenevas-Paule et al.
patent: 4779963 (1988-10-01), Rhomberg
patent: 4825202 (1989-04-01), Dijon et al.
patent: 4879602 (1989-11-01), Glenn
patent: 4900136 (1990-02-01), Goldburt et al.
patent: 5157538 (1992-10-01), Soref
patent: 5319491 (1994-06-01), Selbrede
Ediphor System of Theater Television, Earl I. Sponable, Journal of SMPTE vol. 60, Apr. 1953.
Technical Report RADC-TR-71, Dielectric Membrane Light Valve Study by Eugene T. Kozol et al, Mar. 1971, Section 5.2.2.
Analysis of Fluid Light Valve Control Layers for High Definition Television Picture Projection by R. Tepe, Journal of Applied Physics 57 (7) 1, Apr. 1985.
Deformable Surface Spatial Light Modulator by K. Hess et al, Optical Engineering/May 1987, vol. 26. No. 5.
Viscoelastic Spatial Light Modulators and Schlieren Optical Systems for HDTV Projection Displays by R. Gerhard-Multhaupt er al, SPIE vol. 1255 Large Screen Projection Displays 11 (1990).
Viscoelastic Spatial Light Modulator with Active Matrix Addressing by R. Tepe et al, Applied Optics vol. 28, No. 22 15 Nov. 1989.
Theoretical Analysis of an Electrically Addressed Viscoelastic Spatial Light Modulator by R. Tepe, vol. 4, No. 7 Jul. 1987. J. Opt. Soc. Am.
Deformation Behavior of Thin Viscoelastic Layers Used in an Active-Matrix-Addressed Spatial Light Modulator by W. Brinker er al, SPIE vol. 1018.
The Ruticon Family of Erasable Image Recording Devices by N. Sheridon, IEEE Transactions on Electron Devices, Sep. 1972.
The Ruticon as a Projection Display Device by N. K. Sheridon.
Spatial Light Modulators by David Casasent, Proceedings of the IEEE vol. 65, No. 1, 1977.
An Infrared Video Image Projector by M. L. Noble, TIS No. R83ELS010, Apr. 1983.
Deformographic Storage Display (DSD) Final Report IBM No. 75-A59-002 Contract No. 11632(590601) 75R 13 Jun. 1975, approved by P. F. Olsen.
The Future of Thin-Film Active Devices by Charles Feldman Electronics, Jan. 24,1964.
A Membrane Page Composer by L. S. Cosentino and W. C. Stewart, RCA Review vol. 34, Mar. 1973.
Patent Application "Enhanced Surface Light Modulator" Ser. No. 07/953,118 filed by Craig D. Engle Sep. 29, 1992.
Patent Application "Enhanced Electrostatic Shutter Mosaic Modulator" Ser. No. 07/955,058, by Craig D. Engle.
Patent Application "Enhanced Membrane Light Modulator" Ser. No. 07/958,642, by Craig D. Engle.
Epps Georgia Y.
Robbins Thomas
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