- 专利标题: Optical element, light guide element, and image display device
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申请号: US17034182申请日: 2020-09-28
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公开(公告)号: US11150517B2公开(公告)日: 2021-10-19
- 发明人: Hiroshi Sato , Yukito Saitoh , Ayako Muramatsu , Daisuke Kashiwagi
- 申请人: FUJIFILM Corporation
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JPJP2018-064720 20180329
- 主分类号: G02F1/13363
- IPC分类号: G02F1/13363 ; G02B5/18 ; F21V8/00 ; G02F1/1335 ; G02F1/1337
摘要:
Provided is an optical element in which transmission of incident light with an angle in a predetermined direction is allowed and the brightness of transmitted light is high. The optical element is formed using a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound rotates in one direction; and the optically-anisotropic layer has regions in which the optical axis is twisted in a thickness direction of the optically-anisotropic layer and rotates, the regions having different magnitudes of twist angles of the rotation in a plane.
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