Spatially graded optical switch

Details Spatially graded optical switch Spatially graded optical switch

1993-05-03

1995-05-23

Popek, Joseph A.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359240, 359254, 359885, 359888, G02F 101

Patent

active

054186404

ABSTRACT:
A spatially graded optical switch is described which comprises a transparent substrate, a layer of optically switchable material deposited on the substrate and having optical thickness which is a preselected function of radial distance from the center of the substrate, and electrical or thermal means for switching the material between an OFF state characterized by high transmission (or reflection) and an ON state at which transmission (or reflection) is attenuated smoothly with radius across the switch, according to a preselected profile, from substantially zero at the center to about 100% at the outer edge.

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patent: 5189537 (1993-02-01), O'Farrell
Proceedings of the IRE: "Optical Materials, Films, Filters for Infrared Instrumentation", Wolfe and Ballard; vol. 47; Sep. 1959 pp. 1540-1546.

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