three layer anti-reflective coating for optical substrate

Details three layer anti-reflective coating for optical substrate three layer anti-reflective coating for optical substrate

1997-06-10

1999-10-05

Henry, Jon

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

359589, G02B 528, G02B 111

Patent

active

059633654

ABSTRACT:
Anti-reflective coatings for use on an optical substrate are disclosed having a low reflectance over a broad band of wavelengths in the ultraviolet range and exhibiting excellent "laser durability." The anti-reflective coatings comprise a layer of high-refractive index material situated between at least two layers of low-refractive index material. The layers of high- and low-refractive index material are laminated onto an optical substrate, such as glass or quartz. The anti-reflective coating minimizes the loss of light due to flares, ghosts, etc. Additionally, reflections are reduced over a broad range of incidence angles.

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patent: 5661596 (1997-08-01), Biro et al.
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