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Patent Searching and Data


Title:
ACTUATOR
Document Type and Number:
Japanese Patent JP2010110087
Kind Code:
A
Abstract:

To obtain an actuator that increases the force, generated between a magnet body and a coil, by increasing the number of turns of a conducting wire wound around the coil, suppresses a temperature rise of the coil, and also, suppresses the occurrence of an error in the displacement amount, detected by a capacitive sensor, of a drive target body.

The actuator includes: a magnet body 2; a first shaft 4 fitted to the magnet body 2 and whose one end is mounted to a mirror 1; a second shaft 5 provided oppositely to the first shaft 4; a first sensor electrode 13 mounted to the first shaft 4; a second sensor electrode 14 mounted to the second shaft 5; a cylindrical coil 3 arranged to the axial outside of the magnet body 2; a coil holding means 6 holding the coil 3; a heat discharging means 10 for discharging heat of the coil holding means 6 to the outside; and a base 8 supporting the coil holding means 6 via a spacer 7 while supporting the second shaft 5.


Inventors:
TABATA MASATAKE
MORI TAKESHI
HARUNA MASAKI
ECHIZENYA DAISUKE
EZAKI YUTAKA
Application Number:
JP2008278423A
Publication Date:
May 13, 2010
Filing Date:
October 29, 2008
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02K33/18; G02B5/10; G02B7/182; G02B23/02; H02K9/22
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda