Invention Grant
- Patent Title: Optical element and production method for optical element
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Application No.: US16463676Application Date: 2017-11-15
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Publication No.: US11150392B2Publication Date: 2021-10-19
- Inventor: Hiroyuki Yoshida
- Applicant: OSAKA UNIVERSITY
- Applicant Address: JP Osaka
- Assignee: OSAKA UNIVERSITY
- Current Assignee: OSAKA UNIVERSITY
- Current Assignee Address: JP Osaka
- Agency: Studebaker & Brackett PC
- Priority: JPJP2016-227847 20161124
- International Application: PCT/JP2017/041117 WO 20171115
- International Announcement: WO2018/097007 WO 20180531
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02B5/18 ; G02F1/1335 ; G02F1/1337 ; G02F1/29

Abstract:
An optical element 1 includes a first layer (A1) and a second layer (A2) that faces the first layer (A1). The first layer (A1) includes a plurality of first structural bodies (B1) that each have optical anisotropy. In reflection of light entering from the first layer (A1), the second layer (A2) reflects the light while maintaining a polarization state of the light at incidence and at the reflection. The first layer (A1) changes, according to directions of orientation of the first structural bodies (B1), a phase of the light from a phase at incidence to the first layer (A1) from outside of the first layer (A1) to a phase at output from the first layer (A1) toward the second layer (A2). The first layer (A1) changes the phase of the light from a phase at incidence to the first layer (A1) from the second layer (A2) to a phase at output from the first layer (A1) toward the outside of the first layer (A1) according to the directions of orientation of the first structural bodies (B1).
Public/Granted literature
- US20200271842A1 OPTICAL ELEMENT AND PRODUCTION METHOD FOR OPTICAL ELEMENT Public/Granted day:2020-08-27
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