Title:
LENS DEVICE AND IMAGE PICK-UP DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/114701
Kind Code:
A1
Abstract:
A lens device (3A) has a lens mirror barrel (10) and a drive unit (11). The drive unit is provided with a first magnet (40). The lens mirror barrel is provided with a magnetic body (42). The drive unit is detachably fixed to the lens mirror barrel by using the magnetic force effect between the first magnet and the magnetic body. The drive unit has a movement mechanism for causing the first magnet to move away from the magnetic force of the magnetic body by displacing a magnetic force surface in a direction that intersects with the magnetic flux Φ of the magnetic force surface (40a) of the first magnet.
Inventors:
MITARAI TSUYOSHI (JP)
MISAWA ATSUSHI (JP)
MISAWA ATSUSHI (JP)
Application Number:
PCT/JP2012/079403
Publication Date:
August 08, 2013
Filing Date:
November 13, 2012
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B7/10; G02B7/08
Foreign References:
| JP2000050119A | 2000-02-18 | |||
| JPS6434608U | 1989-03-02 | |||
| JPS5047439U | 1975-05-12 | |||
| JPH08146280A | 1996-06-07 |
Attorney, Agent or Firm:
TAKAMATSU Takeshi et al. (JP)
Takamatsu 猛 (JP)
Takamatsu 猛 (JP)
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Claims: