Optical: systems and elements – Light interference – Produced by coating or lamina
Patent
1993-09-24
1994-12-27
Sugarman, Scott J.
Optical: systems and elements
Light interference
Produced by coating or lamina
359360, 359586, 359588, 427166, 427167, G02B 110
Patent
active
053770455
ABSTRACT:
An infrared reflecting interference filter capable of transmitting a desired proportion of visible radiation while reflecting a large portion of incident solar radiation is provided. The filter consists of a transparent substrate coated first with a dielectric layer, next a partially metal reflectance layer, and finally an outer protective dielectric layer. In addition, between each metal-dielectric interface is deposited a nucleation or glue layer that facilitates adhesions and improves chemical and mechanical resistance. The interference filters are durable and can be modified to provide a full range of optical and electrical characteristics. The dielectric layer can comprise of composite films consisting of silicon nitride in combination with zirconium nitride, titanium nitride, and/or hafnium nitride.
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Belkind Abraham I.
Laird Ronald E.
Wolfe Jesse D.
Cassett Larry R.
Draegert David A.
Papalas Michael A.
Sugarman Scott J.
The BOC Group Inc.
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