Optical element, light-shielding paint set, and method for manufacturing optical element

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United States of America Patent

PATENT NO 10126550
APP PUB NO 20160231563A1
SERIAL NO

15015639

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Abstract

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An optical element includes a substrate and a light-shielding film on a part of the periphery of the substrate. The light-shielding film contains a compound having an epoxy group, a coloring agent, inorganic particles having a refractive index of 2.2 or more, and silica particles. The average concentration of the inorganic particles in an interface region having a thickness of 15 nm from the interface between the substrate and the light-shielding film is 1.1 to 1.5 times as high as the average concentration of the inorganic particles in the light-shielding film.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kubota, Reiko Yokohama, JP 36 101
Teramoto, Yoji Yokohama, JP 31 77
Yamamoto, Shuhei Tokyo, JP 188 816

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