Invention Grant
- Patent Title: Optical lens
- Patent Title (中): 光学镜头
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Application No.: US13003170Application Date: 2009-07-06
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Publication No.: US08233225B2Publication Date: 2012-07-31
- Inventor: Takeshi Hirokane , Nobuyuki Kato
- Applicant: Takeshi Hirokane , Nobuyuki Kato
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee: Mitsubishi Gas Chemical Company, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2008-176537 20080707; JP2008-234734 20080912
- International Application: PCT/JP2009/062311 WO 20090706
- International Announcement: WO2010/004965 WO 20100114
- Main IPC: G02B9/00
- IPC: G02B9/00 ; B29D11/00
Abstract:
An optical lens is obtained by injection-molding a polyester resin containing a diol unit containing from 40 to 99% by mol of a unit derived from ethylene glycol and from 1 to 60% by mol of a unit derived from a diol having from 3 to 16 carbon atoms, and a dicarboxylic acid unit containing 50% by mol or more of a unit derived from a naphthalenedicarboxylic acid.
Public/Granted literature
- US20110109980A1 OPTICAL LENS Public/Granted day:2011-05-12
Information query
