Title:
PHOTOSENSITIVE COMPOSITION AND A HOLOGRAM STORAGE MEDIUM USING SAME, HOLOGRAM OPTICAL ELEMENT, AND HOLOGRAM DIFFRACTION GRATING FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/006012
Kind Code:
A1
Abstract:
Provided is a photosensitive composition capable of realizing further improvement in diffraction characteristics. The present technology provides a photosensitive composition containing at least a compound represented by general formula (1), a binder resin, and a photoinitiator. In general formula (1), X1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a carbon atom, or a silicon atom. Y1 and Y2 are each a benzene ring or a naphthalene ring, but Y1 and Y2 would not simultaneously be benzene rings. R1-R3 are each hydrogen or a substituent represented by *-Z1(R4)d (* represents a bond position). Z1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or more, or an unsaturated hydrocarbon group having a valence of 2 or more, and the saturated hydrocarbon group or the unsaturated hydrocarbon group optionally includes an ether linkage and/or a thioether linkage. R4 represents hydrogen or a polymerizable substituent.
Inventors:
HARA HISAYA (JP)
OHE TAKAHIRO (JP)
KAWASAKI KENSHIRO (JP)
OHE TAKAHIRO (JP)
KAWASAKI KENSHIRO (JP)
Application Number:
PCT/JP2020/024165
Publication Date:
January 14, 2021
Filing Date:
June 19, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
C08F2/44; C08F20/34; G02B5/32; G03H1/02; G11B7/24044
Domestic Patent References:
| WO2018043593A1 | 2018-03-08 |
Foreign References:
| JP2015193809A | 2015-11-05 | |||
| JP2016094597A | 2016-05-26 | |||
| JP2018145263A | 2018-09-20 | |||
| JP2016069637A | 2016-05-09 | |||
| JPS6117624B2 | 1986-05-08 | |||
| JP2019071484A | 2019-05-09 | |||
| JP2001125474A | 2001-05-11 |
Other References:
"KOGAKU", THE JAPANESE JOURNAL OF OPTICS, vol. 44, no. 8, 2015, pages 298 - 303
KOGELNIK, BELL SYSTEM TECHNICAL JOURNAL, vol. 48, 1969, pages 2909
See also references of EP 3998289A4
KOGELNIK, BELL SYSTEM TECHNICAL JOURNAL, vol. 48, 1969, pages 2909
See also references of EP 3998289A4
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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