Coherent light generators – Particular temperature control
Patent
1986-05-05
1988-11-01
LaRoche, Eugene R.
Coherent light generators
Particular temperature control
372 32, 372 87, 350353, 350393, 350 9629, H01S 304, F27D 23024, G02F 101, G02B 602
Patent
active
047824921
ABSTRACT:
A system for the thermal control of optical devices includes an optical device having at least one coating of an electrically conductive material formed on a surface in a heat conducting relationship with the material and connected to a controllable current source which passes varying amounts of electrical current through the layer to vary the amount of thermal energy introduced into the device to control its optical response characteristics. The electrically conductive layer or layers can be optically active, that is, function to affect the light energy transmitted into or through the device as well as acting as an electrically conductive thermal element. The use of an electrically conductive coating or coatings allows the rapid and precise control of thermal energy introduced into the device and, accordingly, the rapid and precise control of the optical characteristics of the device as well as providing a thermal interface between the optical device and the ambient environment that is effective to minimize the adverse affects of transient temperature changes occurring in the environment.
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Taylor, "A Liquid-Vapor Display", Proceedings of the IEEE, vol. 61, No. 2, Feb. 1973, pp. 148-152.
Dyes William A.
McMahon Donald H.
Caufield Francis J.
LaRoche Eugene R.
Polaroid Corporation
Shingleton Michael
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