LIGHT-SHADING MATERIAL FOR OPTICAL DEVICE

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United States of America Patent

APP PUB NO 20190257981A1
SERIAL NO

16333416

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a Light-shading member for an optical device, the Light-shading member can be manufactured by a simple process, i.e. can be producible, and which has excellent reflection preventing performance and can be applied to an optical device which is small and thin; and based on JIS B0601: 2001, the arithmetical mean deviation of the assessed profile Ra of the surface of the Light-shading member for an optical device that is 0.5 μm or more, and the difference (Rp−Rv) between the maximum profile peak height Rp and the maximum profile valley depth Rv is less than 3; the Light-shading member for an optical device that preferably has a substrate film and a Light-shading layer, the Light-shading layer is formed on at least one surface of the substrate film. Further, the Light-shading layer has an average film thickness of 2 μm-35 μm.

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Patent Owner(s)

Patent OwnerAddress
SOMAR CORPORATIONTOKYO 104-8109

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
TOGAWA, Yui Tokyo, JP 1 0

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