Balanced light valve

Details Balanced light valve Balanced light valve

2008-07-31

2010-02-02

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S275000, C359S266000

Reexamination Certificate

active

07656571

ABSTRACT:
Radiation from an illumination source (102) is directed to a total internal reflector (TIR) modulator (10). The modulator includes a an electro-optic member (213) with a plurality of individually addressable pixel regions (210) comprised of a plurality of electrodes arranged in a first and second set. At least one electrode of the first set is adjacent to at least one electrode of the second set and at least one of the pixel regions is controlled to form at least one image pixel on a surface. A first electric potential is imposed on the first set of electrodes selected from a first predetermined group of electric potential values. A second electric potential is imposed on the second set of electrodes selected from a second predetermined group of electric potential values. The first and second predetermined groups of electric potential values together comprise at least three different electric potential values.

REFERENCES:
patent: 4281904 (1981-08-01), Sprague et al.
patent: 4406521 (1983-09-01), Mir et al.
patent: 4780732 (1988-10-01), Abramov
patent: 5291566 (1994-03-01), Harris
patent: 5734491 (1998-03-01), Debesis
patent: 5841579 (1998-11-01), Bloom et al.
patent: 6288822 (2001-09-01), Romanovsky

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