Invention Grant
- Patent Title: Optical element
- Patent Title (中): 光学元件
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Application No.: US14655127Application Date: 2013-12-25
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Publication No.: US09448360B2Publication Date: 2016-09-20
- Inventor: Seiko Kato , Masafumi Ide
- Applicant: CITIZEN HOLDINGS CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: CITIZEN HOLDINGS CO., LTD.
- Current Assignee: CITIZEN HOLDINGS CO., LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2012-288590 20121228
- International Application: PCT/JP2013/084692 WO 20131225
- International Announcement: WO2014/104105 WO 20140703
- Main IPC: G02B6/44
- IPC: G02B6/44 ; G02B6/024 ; G02B6/126 ; G02B6/122 ; G02B6/138 ; G02B6/12 ; G02F1/13

Abstract:
Provided is an optical element having an optical waveguide region that can propagate azimuthally polarized light or radially polarized light while maintaining the direction of polarization. The optical element has a resin layer and an optical waveguide region that is formed in the resin layer and guides light in the lengthwise direction of the resin layer. Liquid crystal molecules are oriented in an approximately radiating shape in a cross section perpendicular to the lengthwise direction in the optical waveguide region, and the refractive index of the optical waveguide region is greater than that of the resin layer.
Public/Granted literature
- US20150323734A1 OPTICAL ELEMENT Public/Granted day:2015-11-12
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