- 专利标题: Optical element that functions as a liquid crystal diffraction lattice
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申请号: US16950541申请日: 2020-11-17
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公开(公告)号: US11480716B2公开(公告)日: 2022-10-25
- 发明人: Yukito Saitoh , Hiroshi Sato
- 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: JPJP2018-096569 20180518
- 主分类号: G02B5/18
- IPC分类号: G02B5/18 ; G02B5/30 ; G02F1/13363
摘要:
The optical element is an optical element including a first optically anisotropic layer which is a cured layer of a liquid crystal composition containing a rod-like liquid crystal compound and a second optically anisotropic layer which is laminated on the first optically anisotropic layer and is a cured layer of a liquid crystal composition containing a disk-like liquid crystal compound, wherein each of the first optically anisotropic layer and the second optically anisotropic layer, has a liquid crystal alignment pattern in which an optical axis of the rod-like liquid crystal compound and an optical axis of the disk-like liquid crystal compound are respectively parallel to a surface of the optically anisotropic layer and oriented along at least one in-plane direction, orientation of the optical axis changes continuously and rotationally, and the orientation of the optical axis rotates by 180° with a period of 0.5 μm to 5 μm.
公开/授权文献
- US20210088703A1 OPTICAL ELEMENT 公开/授权日:2021-03-25
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