Invention Grant
- Patent Title: Holographic optical element and method for producing the same
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Application No.: US15746940Application Date: 2016-07-12
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Publication No.: US10534121B2Publication Date: 2020-01-14
- Inventor: Saburou Hiraoka , Kenichi Onaka , Daisuke Watanabe , Yuya Kubo , Kishio Tamura
- Applicant: KONICA MINOLTA, INC.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Cantor Colburn LLP
- Priority: JP2015-146066 20150723
- International Application: PCT/JP2016/070553 WO 20160712
- International Announcement: WO2017/014105 WO 20170126
- Main IPC: G02B5/32
- IPC: G02B5/32 ; G02B27/01 ; G02B27/02 ; G03H1/02 ; G03H1/04
Abstract:
The present invention provides a means for suppressing an occurrence of a ghost by enhancing diffraction efficiency of a holographic optical element having a volume hologram recording layer. The present invention is a holographic optical element including: a volume hologram recording layer containing a photopolymer; and at least one adjacent layer which is in contact with the volume hologram recording layer and contains a resin, wherein a diffraction grating is formed so as to extend from the volume hologram recording layer to the adjacent layer.
Public/Granted literature
- US20180217311A1 HOLOGRAPHIC OPTICAL ELEMENT AND METHOD FOR PRODUCING THE SAME Public/Granted day:2018-08-02
Information query
