Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1992-09-29
1996-02-20
Lopez, F. Daniel
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359295, G02F 129
Patent
active
054934397
ABSTRACT:
A surface deformation light modulator contains a plurality of first electrodes arranged in a matrix of p rows and q columns affixed to a substrate by a suitable means. Each electrode is electrically connected to a third terminal of a respective switching element. Each switching element is affixed to a second face of the substrate. Each column of electrodes is overlapped by a respective flexible, reflective conductor. Each conductor is affixed by a suitable means to a first face of the substrate. Having the switch matrix and the conductors affixed to opposite face of the substrate allows several processing options to be considered to reduce the influence of contamination and hence enhancing the commercial viability of the modulator. Each switch element further includes a first switch terminal and a second switch terminal. Every second terminal in each row is electrically connected by a respective second buss. A plurality of first busses electrically connects every first terminal in each row to a common potential source. Every first buss is parallel to each second buss to avoid electrical crossover networks to enhance reliability. A suitable potential control means allows control of the potential difference between each first electrode and the respective conductor thereby enabling a wavefront incident on the modulator to be phase modulated in accordance with an information bearing signal.
REFERENCES:
patent: 2681423 (1954-06-01), Auphan
patent: 2910532 (1959-10-01), Auphan
patent: 3463572 (1969-08-01), Preston, Jr.
patent: 3479109 (1969-11-01), Preston
patent: 3626084 (1970-12-01), Whol
patent: 3701586 (1972-10-01), Goetz
patent: 3746785 (1973-07-01), Goodrich
patent: 3796480 (1974-03-01), Preston et al.
patent: 3798620 (1974-03-01), Cosentino
patent: 3879630 (1975-04-01), Halperin et al.
patent: 4001635 (1977-01-01), d'Auria
patent: 4087810 (1978-05-01), Hung et al.
patent: 4441791 (1984-04-01), Hornbeck
patent: 4694287 (1987-09-01), Chenevas-Paule et al.
patent: 4710732 (1987-12-01), Hornbeck
patent: 4731610 (1988-03-01), Baron et al.
patent: 4956619 (1990-09-01), Hornbeck
J. A. van Raalte, Television A New Schlieren Light Value for Television Projection, Applied Optics Oct. 1970 vol. 9, No. 10.
Peter B. Rolsma et al, Experimental parameters of the photoemitter membrane Spatial Light Modulator, Applied Optics, vol. 28, No. 22, 15 Nov. 1989.
Arthur D. Fisher et al, Photoemitter Membrane Light Modulator, Optical Engineering Feb. 1986, vol. 25, No. 2.
L. E. Sommers, The Photoemitter-Membrane Light Modulator Image Transducer, Adv. Electron. Phys. 33A, 493-510.
Kendall Preston, Jr. The Membrane Light Modulator and It's Application in Optical Computers, Optica Acta, 1969, vol. 16, No. 5.
T. P. Brody, A 6.times.6-in 20-lpi Electroluminescent Display Panel, IEEE Transactions on Electron Devices, vol. ED-22, No. 9, Sep. 1975.
K. Hess et al, Deformable Surface Spatial Light Modulator, Optical Engineering May 1987, vol. 26, No. 5.
Eugene T. Kozol et al, Dielectric Membrane Light Value Study, Technical Report RADC-TR-71, Mar. 1971, pp. 1/2, 3, 4.
Robert E. Brooke, Micromechanical Light Modulators on Silicon, Optical Engineering, Jan./Feb. 1985, vol. 24, No. 1.
L. S. Cosentino and W. C., Stewart, A Membrane Page Composer, RCA Review, vol. 31, Mar. 1973.
Kenzo Matada et al, LED Array Modules by New Technology Microbump Bonding Method, IEEE Transactions on Components, Hybrids, and Manufacturing Technology, vol. 13, No. 3, Sep. 1990.
John M. Doyle, Thin-Film and Semiconductor Integrated Circuitry, McGraw-Hill, pp. 20-21.
P. G. Lecomber, Present and Future Applications of Amorphous Silicon and It's Alloys, Journal of Non-Crystalline Solids, 115 (1989) 1-13.
"Integrated Circuits" in Encyclopedia of Semiconductor Technology (1984), pp. 369-371, Ref.TK7871.85, 1984.
LandOfFree
Enhanced surface deformation light modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Enhanced surface deformation light modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced surface deformation light modulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1360579