Title:
OPTICAL UNIT
Document Type and Number:
Japanese Patent JP2015060059
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical unit that enables an optical member to be held at a desired stationary position without causing heat damage.SOLUTION: First and second electromagnets 67 and 68 (first and second core arms 63 and 64) are supported swingably with respect to a base member 62 so that a position of the first and second electromagnets 67 and 68 (first and second core arms 63 and 64) when a shaft member 52 is not rotatably actuated is displaced to a position where the position thereof comes closer to the shaft member 52 than when the shaft member 52 is rotatably actuated, and upon a non-rotational actuation of the shaft member 52, first and second core heads 63a and 64a are abutted on the shaft member 52 by magnetic force of the shaft member 52.
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Inventors:
IWASAKI SEIJI
Application Number:
JP2013193338A
Publication Date:
March 30, 2015
Filing Date:
September 18, 2013
Export Citation:
Assignee:
OLYMPUS MEDICAL SYSTEMS CORP
International Classes:
G03B9/10; G02B7/04
Domestic Patent References:
| JP2013076900A | 2013-04-25 | |||
| JPS4314032Y1 | 1968-06-14 | |||
| JPS4219301Y1 | 1967-11-08 | |||
| JPS6212026U | 1987-01-24 | |||
| JP2002519980A | 2002-07-02 | |||
| JPH11269611A | 1999-10-05 | |||
| JP2010004648A | 2010-01-07 | |||
| JPS57116326A | 1982-07-20 |
Foreign References:
| US20140169780A1 | 2014-06-19 | |||
| US6326710B1 | 2001-12-04 | |||
| EP1069200A1 | 2001-01-17 |
Attorney, Agent or Firm:
Susumu Ito
Yasushi Hasegawa
Osamu Shinoura
Yasushi Hasegawa
Osamu Shinoura