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Title:
光学フィルムおよびこれを用いた光学積層体
Document Type and Number:
Japanese Patent JP6739337
Kind Code:
B2
Abstract:
[Problem] The present invention provides eyewear, such as polarized sunglasses, having cholesteric liquid crystal layers, wherein the eyewear has a metallic tone and antiglare properties, minimizes the reduction in light-polarizing element absorptive capability that is associated with circular polarization, and is moreover unaffected by external degrading factors such as sebum, moisture, and salt air. [Solution] This optical film is characterized by being provided with a light-reflecting layer R comprising a cholesteric liquid crystal layer that has right-handed helical orientation, a light-reflecting layer L comprising a cholesteric liquid crystal layer that has left-handed helical orientation, and a polarizing element layer.

Inventors:
Koichi Tanaka
Yasuku Etsuyuki
Fujisawa Hideyoshi
Takuya Goto
Katsuyuki Murai
Kazuhisa Mitsuhata
Kyosuke Nakamura
Application Number:
JP2016531287A
Publication Date:
August 12, 2020
Filing Date:
June 23, 2015
Export Citation:
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Assignee:
NIPPON KAYAKU KABUSHIKI KAISHA
Mitsubishi Gas Chemical Co., Ltd.
MGC Fill Sheet Co., Ltd.
International Classes:
G02B5/30; B32B7/023; G02B5/08; G02C7/12
Domestic Patent References:
JP2011524539A
JP2002090535A
JP2004507781A
JP2003307620A
JP2002182212A
JP2008242466A
Attorney, Agent or Firm:
Makoto Ono
Kenkyo Kanayama
Mitsuaki Tsubokura
Kazuki Shigemori
Kenji Ando
Hidehiko Ichikawa
Takahiro Aoki
Yoshie Sakurada
Yousuke Kawasaki
Takuya Gomibuchi
Toshikazu Imato
Yoichi Iino
Yusuke Ichikawa
Masahiro Moriyama
Yoshikazu Iwase
Yasufumi Shiroyama