Optical film and eyewear

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12158655
APP PUB NO 20220004028A1
SERIAL NO

17480559

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Abstract

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Disclosed is an optical film including an optical laminate having two or more laminated light reflection layers of different center wavelengths of reflection and a polarizing element layer. Reflection layers are selected from at least one light reflection layer of both RPRL and LPRL, each having a center wavelength of selective reflection at or within 400 nm and 900 nm, RPRL having a fixed cholesteric liquid crystal phase with a right-handed spiral structure having right-handed circularly polarized light reflectivity, and LPRL having a fixed cholesteric liquid crystal phase with a left-handed spiral structure having left-handed circularly polarized light reflectivity. Layers RPRL and LPRL have center wavelengths of selective reflection shifted from that of a light reflection layer adjacent to each other by an interval of 40 nm or more and 500 nm or less, and the maximum reflectance of optical laminate is 50% or less.

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Patent Owner(s)

Patent OwnerAddress
NIPPON KAYAKU KABUSHIKI KAISHA1-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1000005 ?1000005

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayasaki, Tomoyuki Tokyo, JP 8 46
Yahagi, Yoshiyuki Tokyo, JP 16 46

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