Invention Grant
- Patent Title: Variable focal distance lens system and imaging device
- Patent Title (中): 可变焦距透镜系统和成像装置
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Application No.: US12654930Application Date: 2010-01-08
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Publication No.: US07920333B2Publication Date: 2011-04-05
- Inventor: Motoyuki Ohtake
- Applicant: Motoyuki Ohtake
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2009-046325 20090227
- Main IPC: G02B15/14
- IPC: G02B15/14
Abstract:
A variable focal distance lens system includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, which are sequentially disposed from an object side to an image side. The system satisfies −0.65
Public/Granted literature
- US20100220399A1 Variable focal distance lens system and imaging device Public/Granted day:2010-09-02
Information query
