Importance

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Abstract

The invention provides a fluorocarbon coating having a reduced surface energy that has low susceptibility to molecular and particulate contamination. The fluorocarbon coating is stable and functional in vacuum. The fluorocarbon coating is stable to chemical solvents, cryogenic temperatures, and temperatures as high as 400.degree. C. The fluorocarbon coating may be deposited as a thin film or produced as a modification to a surface of optical instruments without significant alteration of the optical characteristics. The fluorocarbon coating may reside on a textured substrate or include texturing within the process to further enhance the contamination resistant qualities of the treated surface. The fluorocarbon coating may be graded in composition throughout the coating layer. The invention can be used on surfaces that operate in aerospace environments and in dusty environments where contamination is an important consideration.

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First Claim