Optical element molding die and method for molding optical element

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United States of America Patent

PATENT NO 8449284
SERIAL NO

12613750

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Abstract

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An optical element molding die is designed for molding an optical element having a concave-convex structure. The optical element can be manufactured by a wet system that enables element formation over a large area and a curved surface, without using a lithographic process, and is advantageous in terms of mass production and equipment cost. The optical element molding die includes a substrate having a surface with a negative standard electrode potential in the oxidation reaction and an anodic oxidation layer provided on the substrate. A protective layer with the positive standard electrode potential is provided between the substrate and the anodic oxidation layer.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohgane, Masanobu Yokohama, JP 8 36

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