Diffractive light modulator

Details Diffractive light modulator Diffractive light modulator

2007-04-10

2007-04-10

Harrington, Alicia M. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S290000, C359S224200, C359S298000

Reexamination Certificate

active

10811435

ABSTRACT:
In one embodiment disclosed, a light modulator can be configured to have a substantially flat optically active modulator element portion while deflected. The modulator can include a plurality of modulator elements arranged substantially in parallel, with each modulator element including an optically active portion and a support portion on either side of the optically active portion. Further, the optically active portion can have a narrower width than the support portion. In another embodiment disclosed, a movable membrane for light modulation includes a substantially circular optically active portion and a released membrane portion surrounding the circular optically active portion. The substantially circular optically active portion can also include a plurality of gaps configured to expose a lower surface. Further, the substantially circular optically active portion can be essentially flat while in a deflected state.

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patent: 6829077 (2004-12-01), Maheshwari
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David T. Amm, et al. “Optical Performance of the Grating Light Valve Technology” 1999, pp. 1-8, Silicon Light Machines. Presented at Photonics West-Electronics Imaging.
R.W. Corrigan, “An Alternative Architecture for High Performance Display” Nov. 20, 1999, pp. 1-5, Silicon Light Machines. Presented at SMPTE Technical Conference and Exhibition, New York, NY.
R.W. Corrigan, et al. “Calibration of a Scanned Linear Grating Light Valve Projection System” May 18, 1999, pp. 1-4, Silicon Light Machines. Presented at Society for Information Display Symposium, San Jose, CA.
Robert Corrigan, et al. Silicon Light Machines—Grating Light Valve Technology Brief, Jun. 2001 ver C. pp. 1-8; Sunnyvale, California.

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