Coating processes – Optical element produced
Patent
1991-09-30
1993-06-15
Bell, Janyce
Coating processes
Optical element produced
423 62, 423 85, 427 64, 427 79, 427 80, 427108, 4271262, 4271263, 427164, 427165, 427222, 4273981, 4274193, B05D 506, B05D 302, C01G 23053
Patent
active
052196119
ABSTRACT:
Low porosity titania forms containing only a small amount of hydroxyl groups and possessing a high refractive index which are property stable regardless of humidity level and which prohibit electrical and gas leakage and optical loss, are obtained in a sol-gel process by rapidly heating to curing temperature, e.g. at a rate of 8000.degree. C./min. One application provides more stable, longer-lasting sol-gel prepared optical interference filters. Other applications provide capacitors with high capacitance and optical planar waveguides.
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Giannelis Emmanuel P.
Keddie Joseph L.
Bell Janyce
Cornell Research Foundation Inc.
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