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Title:
VOICE COIL MOTOR, AND MOVABLE MIRROR UNIT AND INTERFERENCE SPECTROPHOTOMETER EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2018/020847
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a voice coil motor and an interference spectrophotometer such that an angular deviation between a movable mirror and a fixed mirror can be suppressed to one second or less even when driven at a high speed. The voice coil motor is provided with: a fixed part 71 to which a yoke 73 having a cylindrical part 73a and a magnet 74 disposed inside the cylindrical part 73a are fixed; a movable part 72 to which a cylindrical coil 72b disposed between the cylindrical part 73a of the yoke 73 and the magnet 74 is fixed; and a power supply line 72c for connecting the coil 72b with a power source. Slits 73c, 73d for passing the power supply line 72c therethrough are formed in the cylindrical part 73a of the yoke 73. The voice coil motor is configured such that the movable part 72 moves back and forth with respect to the fixed part 71 upon receiving an electromagnetic force generated by the magnet 74 when the coil 72b is energized. The slits 73c, 73d are symmetrically formed with respect to a central axis of the cylindrical part 73a of the yoke 73.

Inventors:
MARUNO HIROMASA (JP)
MORIYA NAOJI (JP)
HASHIMOTO TOYOYUKI (JP)
MURAMATSU TAKASHI (JP)
KATSU HIDEAKI (JP)
Application Number:
PCT/JP2017/021051
Publication Date:
February 01, 2018
Filing Date:
June 07, 2017
Export Citation:
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Assignee:
SHIMADZU CORP (JP)
International Classes:
H02K33/18; G01J3/06; G01J3/45
Foreign References:
JPH06505804A1994-06-30
JP2006220776A2006-08-24
JP2010183677A2010-08-19
JP2014170018A2014-09-18
Other References:
See also references of EP 3490124A4
Attorney, Agent or Firm:
KASHIMA, Yoshio (JP)
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