Invention Grant
- Patent Title: Plastic optical lens
- Patent Title (中): 塑料光学透镜
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Application No.: US13661243Application Date: 2012-10-26
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Publication No.: US08842376B2Publication Date: 2014-09-23
- Inventor: Sheng-Yu Yang , Yeo-Chih Huang
- Applicant: Largan Precision Co., Ltd.
- Applicant Address: TW Taichung
- Assignee: Largan Precision Co., Ltd
- Current Assignee: Largan Precision Co., Ltd
- Current Assignee Address: TW Taichung
- Agency: Morris, Manning & Martin LLP
- Agent Tim Tingkang Xia, Esq.
- Priority: TW101117727A 20120518
- Main IPC: G02B9/60
- IPC: G02B9/60 ; G02B3/08
Abstract:
This invention provides an injection-molded plastic optical lens comprising from a center to an edge thereof an optical effective portion, a connecting portion and a peripheral portion that are concentrically formed. The plastic optical lens has an outer diameter D. The optical effective portion has an edge thickness ET1 and a central thickness CT, the connecting portion has a minimum thickness ET2, and the plastic optical lens satisfies the following relations of CT≦0.30 mm and ET2/ET1
Public/Granted literature
- US20130308210A1 PLASTIC OPTICAL LENS Public/Granted day:2013-11-21
Information query
