Invention Grant
- Patent Title: Projection lens
- Patent Title (中): 投影镜头
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Application No.: US13179574Application Date: 2011-07-11
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Publication No.: US08456764B2Publication Date: 2013-06-04
- Inventor: Xiao-Na Liu , Fang-Ying Peng , Hai-Jo Huang , An-Tze Lee , Sheng-An Wang
- Applicant: Xiao-Na Liu , Fang-Ying Peng , Hai-Jo Huang , An-Tze Lee , Sheng-An Wang
- Applicant Address: CN Foshan TW New Taipei
- Assignee: Premier Image Technology(China) Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee: Premier Image Technology(China) Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee Address: CN Foshan TW New Taipei
- Agency: Altis Law Group, Inc.
- Priority: CN201110154010 20110609
- Main IPC: G02B13/04
- IPC: G02B13/04 ; G02B3/02 ; G02B13/18 ; G02B9/04
Abstract:
A projection lens includes, in order from the magnification end to the minimization end thereof: a first lens group of a negative refractive power; and a second lens group of a positive refractive power. The projection lens satisfies the formula: 0.061
Public/Granted literature
- US20120314303A1 PROJECTION LENS Public/Granted day:2012-12-13
Information query
