Invention Grant
- Patent Title: Zoom lens
- Patent Title (中): 变焦镜头
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Application No.: US12512180Application Date: 2009-07-30
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Publication No.: US08085474B2Publication Date: 2011-12-27
- Inventor: Lai Wei
- Applicant: Lai Wei
- Applicant Address: JP Saitama-shi
- Assignee: Tamron Co., Ltd.
- Current Assignee: Tamron Co., Ltd.
- Current Assignee Address: JP Saitama-shi
- Agency: Foley & Lardner LLP
- Priority: JP2008-208490 20080813
- Main IPC: G02B15/14
- IPC: G02B15/14
Abstract:
A zoom lens includes, sequentially from an object side, a first lens group having a negative refractive power; and a second lens group having a positive refractive power, where focal length is varied by changing a distance between the first lens group and the second lens group, and a first conditional expression 0.8
Public/Granted literature
- US20100039710A1 ZOOM LENS Public/Granted day:2010-02-18
Information query
