Electric heating – Heating devices – With heating unit structure
Patent
1987-12-22
1990-11-13
Reynolds, Bruce A.
Electric heating
Heating devices
With heating unit structure
219553, H05B 316
Patent
active
049703765
ABSTRACT:
A transparent element for the uniform heating of a glass substrate includes: a heating member which is located on one surface of a glass substrate, the heating member including a thin, electrically conductive transparent film; and a thin, transparent antireflection coating applied to the surface of the electrically conductive transparent film. A method of forming a transparent heater for glass cells employed in spectroscopy or signal detection experiments includes the steps of coating a glass cell with first a transparent electrically conductive film; and coating the coated glass cell with a transparent antireflection coating. In a preferred embodiment, the conductive first transparent layer includes indium oxide containing approximately nine molar percent tin oxide and the second antireflection layer includes a highly transparent insulating material such as magnesium fluoride, which has a refractive index that is lower than the refractive index of the glass substrate.
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Kunz Kirsten P.
Mellor Charles E.
Finnegan Martha A.
GTE Products Corporation
Lateef Marvin M.
Linek Ernest V.
Reynolds Bruce A.
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