Browse Prior Art Database

Coating of Optical Elements

IP.com Disclosure Number: IPCOM000091912D
Original Publication Date: 1968-Jul-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Gregor, LV: AUTHOR

Abstract

This coating protects optical elements, such as lenses, prisms, etc., from chemical attack, wear, and abrasion. Optical elements can be coated with a layer of silicon nitride by RE sputter techniques. Silicon nitride is very hard, chemically inert, and can be made to adhere to materials used in optical elements. The coated optical elements are particularly useful in corrosive environments. Further, elements used in infrared radiation are commonly water soluble salts. These elements can be protected from moisture in the air by such coatings.

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Coating of Optical Elements

This coating protects optical elements, such as lenses, prisms, etc., from chemical attack, wear, and abrasion. Optical elements can be coated with a layer of silicon nitride by RE sputter techniques. Silicon nitride is very hard, chemically inert, and can be made to adhere to materials used in optical elements. The coated optical elements are particularly useful in corrosive environments. Further, elements used in infrared radiation are commonly water soluble salts. These elements can be protected from moisture in the air by such coatings.

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