Optical element, light guide element, and image display element

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United States of America

PATENT NO 12189159
APP PUB NO 20210373218A1
SERIAL NO

17401477

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Abstract

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Provided are an optical element, a light guide element, and an image display element in which the occurrence of sidelobe is suppressed. The optical element includes a cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and in a case where a birefringence in a thickness region of 80% as a center portion with respect to a thickness of the cholesteric liquid crystal layer is represented by Δn1, a birefringence in a thickness region of 10% from one surface of the cholesteric liquid crystal layer is represented by Δn2, and a birefringence in a thickness region of 10% from another surface of the cholesteric liquid crystal layer is represented by Δn3, at least one of Δn2 or Δn3 is less than Δn1.

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Patent Owner(s)

  • FUJIFILM CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nimura, Shigeaki Minami-ashigara, JP 48 361
Saitoh, Yukito Minami-ashigara, JP 202 944
Sasata, Katsumi Minami-ashigara, JP 67 133
Sato, Hiroshi Minami-ashigara, JP 974 10580

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