Invention Grant
- Patent Title: Photochromic lens
- Patent Title (中): 光致变色镜头
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Application No.: US14008304Application Date: 2012-03-30
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Publication No.: US08902487B2Publication Date: 2014-12-02
- Inventor: Tomofumi Ohnishi
- Applicant: Tomofumi Ohnishi
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2011-076614 20110330
- International Application: PCT/JP2012/058539 WO 20120330
- International Announcement: WO2012/133749 WO 20121004
- Main IPC: G02F1/00
- IPC: G02F1/00 ; C08K5/3492 ; G03C1/73 ; G02B1/04 ; G02C7/10 ; G02B5/23
Abstract:
The present invention relates to a photochromic lens, which comprises a photochromic layer comprising a photochromic dye and a resin component, and an organic hardcoat layer in this order, wherein the resin component is an acrylic resin, and the photochromic layer further comprises a piperidine ring-containing compound having a molecular weight of equal to or greater than 1,000.
Public/Granted literature
- US20140036334A1 PHOTOCHROMIC LENS Public/Granted day:2014-02-06
Information query
