Optical member

Details Optical member Optical member

2006-12-19

2006-12-19

Feely, Michael J. (Department: 1712)

Stock material or miscellaneous articles

Composite

Of silicon containing

C428S448000, C427S164000, C427S402000

Reexamination Certificate

active

07150917

ABSTRACT:
An optical member and process for making it including an optical substrate, a multilayered antireflection film provided on the optical substrate, and a water-repellent layer provided on an outermost layer of the multilayered antireflection film, wherein the outermost layer of the multilayered antireflection film is a layer containing, as a major component, silicon dioxide; and the water-repellent layer includes a first layer containing, as major components, a fluorine-substituted alkyl group-containing organosilicon compound and a silicon-free perfluoropolyether and a second layer provided on the first layer and which is in direct contact therewith, which contains, as a major component, a silicon-free perfluoropolyether.

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Co-pending U.S. Appl. No. 10/390,281.
International Search Report dated Nov. 20, 2003.

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