Invention Grant
- Patent Title: Optical reflective film and optical reflector using the same
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Application No.: US14440499Application Date: 2013-10-01
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Publication No.: US09599758B2Publication Date: 2017-03-21
- Inventor: Akihito Hisamitsu
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2012-246423 20121108; JP2013-013764 20130128
- International Application: PCT/JP2013/076740 WO 20131001
- International Announcement: WO2014/073291 WO 20140515
- Main IPC: G02B5/08
- IPC: G02B5/08 ; G02B5/28 ; B32B27/30 ; G02B1/10 ; G02B5/26

Abstract:
An optical reflective film which includes at least one unit formed by laminating a high refractive index layer and a low refractive index layer on a substrate and is characterized in that at least either of the high refractive index layer or the low refractive index layer contains two or more kinds of polyvinyl alcohols having different degrees of saponification, the high refractive index layer and the low refractive index layer contain polyvinyl alcohols having approximately the same degree of saponification, and an average degree of saponification of polyvinyl alcohols contained in the high refractive index layer and an average degree of saponification of polyvinyl alcohols contained in the low refractive index layer are different from each other.
Public/Granted literature
- US20150285974A1 OPTICAL REFLECTIVE FILM AND OPTICAL REFLECTOR USING THE SAME Public/Granted day:2015-10-08
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