Invention Grant
- Patent Title: Zoom lens and electronic imaging apparatus incorporating the same
- Patent Title (中): 变焦镜头和包含其的电子成像装置
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Application No.: US13200069Application Date: 2011-09-15
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Publication No.: US08351129B2Publication Date: 2013-01-08
- Inventor: Toyoki Kon , Keisuke Ichikawa
- Applicant: Toyoki Kon , Keisuke Ichikawa
- Applicant Address: JP Toyko
- Assignee: Olympus Imaging Corp.
- Current Assignee: Olympus Imaging Corp.
- Current Assignee Address: JP Toyko
- Agency: Kenyon & Kenyon LLP
- Priority: JP2010-216387 20100928; JP2011-175551 20110811
- Main IPC: G02B15/14
- IPC: G02B15/14
Abstract:
The zoom lens of the invention comprises, in order from an object side thereof, a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having positive refracting power, a fifth lens group having negative refracting power, and a sixth lens group having positive refracting power. The first lens group includes a reflective optical element, and the lens in and on the most image side of the fourth lens group comprises a negative lens concave on its image side.
Public/Granted literature
- US20120075715A1 Zoom lens and electronic imaging apparatus incorporating the same Public/Granted day:2012-03-29
Information query
