Invention Grant
- Patent Title: Optical system, and imaging apparatus incorporating the same
- Patent Title (中): 光学系统和包含该光学系统的成像装置
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Application No.: US13199987Application Date: 2011-09-13
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Publication No.: US08390943B2Publication Date: 2013-03-05
- Inventor: Ryosuke Uemura
- Applicant: Ryosuke Uemura
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kenyon & Kenyon LLP
- Priority: JP2010-213419 20100924
- Main IPC: G02B9/12
- IPC: G02B9/12
Abstract:
An imaging optical system has, in order from an object side to an image side, a first lens group, an aperture stop, a second lens group and a third lens group. A first lens, in said third lens group, is movable along an optical axis thereby implementing focusing from a focusing-on-infinity state to a focusing-on-a-near-distance state, with satisfaction of: |f(2+3)g/f1g|
Public/Granted literature
- US20120075729A1 Optical system, and imaging apparatus incorporating the same Public/Granted day:2012-03-29
Information query
