Invention Grant
- Patent Title: Vibration reduction apparatus with a center of gravity adjusting member to reduce detection errors and optical apparatus
- Patent Title (中): 具有重心调节构件的减振装置,以减少检测误差和光学装置
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Application No.: US12450679Application Date: 2008-03-28
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Publication No.: US08446672B2Publication Date: 2013-05-21
- Inventor: Junichi Omi
- Applicant: Junichi Omi
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2007-101578 20070409
- International Application: PCT/JP2008/056096 WO 20080328
- International Announcement: WO2008/126702 WO 20081023
- Main IPC: G02B27/64
- IPC: G02B27/64

Abstract:
A vibration reduction apparatus to stably control the driving of a vibration reduction optical system. A vibration reduction apparatus 30 has a fixed portion 31, a moving portion 25, 32, 34-1, 35-1 having a vibration reduction optical system 25 and moves in a plane perpendicular to an optical axis, relatively with respect to the fixed portion, a first detection portion 35 detects relative movement in a first direction D1 of the moving portion and the fixed portion, a second detection portion detects relative movement in a second direction D2 of the moving portion and the fixed portion, and a center of gravity adjusting member 36 disposed at the moving portion such that a center of gravity position G1 of the moving portion can be brought close to a crossing point C of each detection direction of the first detection portion and the second detection portion.
Public/Granted literature
- US20100033820A1 VIBRATION REDUCTION APPARATUS AND OPTICAL APPARATUS Public/Granted day:2010-02-11
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