Multilayer anti-reflection coating using zinc oxide to provide u

Details Multilayer anti-reflection coating using zinc oxide to provide u Multilayer anti-reflection coating using zinc oxide to provide u

1989-08-24

1992-09-15

Arnold, Bruce Y.

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

359589, G02B 528

Patent

active

051471256

ABSTRACT:
A multilayer, thin-film, broad-band, anti-reflection structure applicable to transparent substrates. The present invention makes use of the UV absorption properties of zinc oxide to provide UV rejection for wavelengths shorter than 380 nm, while providing anti-reflection properties in the visible region of the spectrum. The structure provides a reflection value less than 0.25% in the visible region of the spectrum, and blocks 99 percent of UV radiation below 380 nm.

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Minami, T., Nanto, H. and Takata, S., "Optical Properties of Aluminum Doped Zinc Oxide Thin Films Prepared by R. F. Magnetron Sputtering", Japanese Journal of Applied Physics, vol. 24, No. 8, Aug. 1985 pp. L605-L607.
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