Actuator, optical scanner and image forming apparatus

Details Actuator, optical scanner and image forming apparatus Actuator, optical scanner and image forming apparatus

2010-02-11

2010-12-14

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S199100, C359S200700

Reexamination Certificate

active

07852539

ABSTRACT:
An actuator includes: a first vibrating system having a frame-like driving member and a pair of first axis members holding the driving member from both sides so that the driving member is rotatable about an X axis; a second vibrating system having a movable plate provided inside the driving member and a pair of second axis members holding the movable plate on the driving members from both sides so that the movable plate is rotatable about a Y axis orthogonal to the X axis; a driving unit including a permanent magnet provided on the driving member, a coil provided to oppose the permanent magnet and a voltage applying unit applying voltage to the coil; and a spacer sandwiched between the driving member and the permanent magnet so as to form space preventing intervention by the movable plate.

REFERENCES:
patent: 6765706 (2004-07-01), Tokuda et al.
patent: 6924915 (2005-08-01), Hirose et al.
patent: 08-322227 (1996-12-01), None

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