Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2008-09-15
2010-11-02
Martinez, Joseph (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C349S113000
Reexamination Certificate
active
07826121
ABSTRACT:
Provided is a method for using a display system. The method, in one embodiment, includes directing a light beam from a light source to an array of individually addressable pixels of a spatial light modulator. The method further includes modulating the light beam into a first portion of light using a first addressable pixel, and a second portion of light using a second addressable pixel. Thereafter, the method includes directing the first portion of light having a first incident angle and the second portion of light having a second different incident angle toward an angle-selective retro-reflector, the angle-selective retro-reflector configured to transmit the first portion of light onto a display target, and reflect the second portion of light back toward the second addressable pixel. Additionally, the method includes recycling the reflected second portion of light to the pixels of the spatial light modulator.
REFERENCES:
patent: 7551247 (2009-06-01), Fujiwara et al.
Russel; “A Pulse Width Modulation Algorithm”; U.S. Appl. No. 12/062,266, filed Apr. 3, 2007.
Russel; “A Pulse Width Modulation Algorithm”; U.S. Appl. No. 11/696,033, filed Apr. 3, 2007.
Sajjad A. Khan, et al.; entitled “Spatial Light Modulator-Based Reconfigurabale Optical Add-Drop Multiplexer and Method of Adding an Optical Channel Using the Same” filed Sep. 15, 2008.
Brady III Wade James
Martinez Joseph
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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