Oscillation device, optical deflector using the oscillation...

Details Oscillation device, optical deflector using the oscillation... Oscillation device, optical deflector using the oscillation...

2005-08-02

2005-08-02

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

C359S198100, C359S199200, C310S036000, C335S222000, C335S229000

Reexamination Certificate

active

06924915

ABSTRACT:
Disclosed is an oscillation device comprising: a first movable plate adapted to be oscillated about a first rotation axis; a first elastic supporting portion for oscillatively supporting the first movable plate; a supporting substrate for fixing the first elastic supporting portion; a first magnetic field generating portion arranged in a position remote from the first movable plate; a second movable plate adapted to be oscillated about a second rotation axis; and a second elastic supporting portion fixed to the first movable plate for oscillatively supporting the second movable plate, in which a first coil is provided in the first movable plate to be turned round the second movable plate, and in which a second magnetic field generating portion is provided in the second movable plate. The oscillation device is capable of: operating at a high speed with large displacement; enhancing an energy efficiency; and oscillating about two axes.

REFERENCES:
patent: 5606447 (1997-02-01), Asada et al.
patent: 5969465 (1999-10-01), Neukermans et al.
patent: 6232861 (2001-05-01), Asada
patent: 2000/235152 (2000-08-01), None
patent: 2001/075042 (2001-03-01), None

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