Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1992-02-07
1994-07-26
Turner, A. A.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
359359, 359580, 428212, 428336, 428428, 428432, 428701, 428702, 428704, 428913, G02B 522
Patent
active
053326180
ABSTRACT:
The present invention is directed to an anti-reflection and UV rejection coating. The coating comprises at least eight layers wherein adjoining layers alternate between high and low refractive index materials. The layer adjacent an article on which the coating is formed has a high refractive index greater than about 2.10 at a wavelength of about 520 nanometers and greater than about 2.50 at a wavelength of about 330 nanometers. The index of refraction of the low refractive index material is less than about 1.50 at a wavelength of about 520 nanometers. The two layers of low refractive index material nearest the article each have an optical thickness at a wavelength of about 330 nm of about one-quarter wavelength.
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Browne Robert E.
McDonough Thomas C.
Tru Vue, Inc.
Turner A. A.
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