Electrically activated thermochromic optical shutters

Details Electrically activated thermochromic optical shutters Electrically activated thermochromic optical shutters

1993-10-18

1996-06-11

Ryan, Patrick J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

359289, 359241, 428209, B32B 900

Patent

active

055254306

ABSTRACT:
An optical shutter which responds to temperature may be caused to respond to an electrical current by placing a transparent conductor of electricity parallel to and in thermal contact with it, and by running an electrical current through the transparent conductor, such that the transparent conductor is resistively heated, and thereby heats the optical shutter. The above transparent conductor may be used simultaneously as a component of a transparent insulation. The electrical current may be controlled by a photosensor, a temperature sensor, a thermostat, and/or a manual switch.

REFERENCES:
patent: 4307942 (1981-12-01), Chahroudi
patent: 4832466 (1989-05-01), Nishimura et al.

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