Optical member, method of manufacturing optical member, and image display device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10459132
APP PUB NO 20180003869A1
SERIAL NO

15704572

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An optical member includes: a substrate; and a dot formed on a surface of the substrate. The dot has wavelength selective reflecting properties, and a cholesteric structure which has a stripe pattern including bright and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope. A surface shape of the dot opposite to the substrate in a cross-section of the dot in a thickness direction has at least one inflection point. In the cross-section, an angle between a normal line perpendicular to a line, formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot, is in a range of 70° to 90°. A proportion of a retroreflective area of the optical member is high when observed after light irradiation from an oblique direction to a normal direction perpendicular to the optical member.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATION26-30 NISHIAZABU 2-CHOME MINATO-KU TOKYO 106-8620

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichihara, Nobuhiko Kanagawa, JP 19 19
Ito, Yoji Kanagawa, JP 94 1092
Kashiwagi, Daisuke Kanagawa, JP 42 133
Nagai, Michio Kanagawa, JP 118 2110
Yamamoto, Akira Kanagawa, JP 824 9803

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