Multi-layered optical film

Details Multi-layered optical film Multi-layered optical film

1994-09-16

1995-10-24

Turner, A. A.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428212, 428701, 428702, 359580, 359586, G03C 1825

Patent

active

054608880

ABSTRACT:
Alternating films consisting of alternations of high refractive index films and low refractive index films are provided on a transparent substrate such that the high refractive index film is adjacent to the substrate. The low refractive index films are composed of Al.sub.2 O.sub.3. The high refractive index films are composed of at least a component selected from a group consisting of TiO.sub.2, Ta.sub.2 O.sub.5, HfO.sub.2, ZrO.sub.2, Nb.sub.2 O.sub.5, mixture thereof and modified substances thereof.

REFERENCES:
patent: 3858965 (1975-01-01), Sumita
patent: 4628005 (1986-12-01), Ito et al.
patent: 4805989 (1989-02-01), Nakajima

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