Optical: systems and elements – Light interference – Produced by coating or lamina
Patent
1997-04-01
1998-10-20
Henry, Jon W.
Optical: systems and elements
Light interference
Produced by coating or lamina
359583, 359585, 359589, G02B 110
Patent
active
058255494
ABSTRACT:
An optical thin film for an optical element is disclosed, which includes at least one layer containing at least one compound selected from the group consisting of MoO.sub.3 and WO.sub.3. A material for use in evaporation coating to prepare a thin film includes a mixture of at least one compound selected from the group consisting of MoO.sub.3 and WO.sub.3 and another dielectric. A further optical thin film includes a substrate and superimposed thereon are alternate layers. One such alternative layer having a high refractive index, and composed of a material containing at least one compound selected from the group consisting of MoO.sub.3 and WO.sub.3. Another of such alternative layers having a low refractive index, and composed of SiO.sub.2. Another thin film includes a substrate and, superimposed thereon, at least one dielectric layer. The at least one dielectric layer being at least one layer containing at least one compound selected from the group consisting of MoO.sub.3 and WO.sub.3, formed by vacuum evaporation coating.
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Ikeda Hiromu
Kawamata Ken
Henry Jon W.
Jr. John Juba
Olympus Optical Co,. Ltd.
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