Light-beam scanning device

Details Light-beam scanning device Light-beam scanning device

2008-07-01

2008-07-01

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

C235S462010

Reexamination Certificate

active

07394583

ABSTRACT:
A light-beam scanning device includes a base plate having a torsion beam portion formed therein, and a mirror portion supported by the torsion beam portion and adapted to be oscillated. The light-beam scanning device includes one of a piezoelectric member, a magnetostrictive member and a permanent magnet member, which is fixed to or formed as a portion of the base plate. The mirror portion supported by the torsion beam portion is oscillated by a plate wave that is induced in the base plate by applying a voltage or electric field to the piezoelectric, magnetostrictive or permanent magnet member. The light-beam scanning device can efficiently generate a torsional oscillation in the mirror portion in a simplified structure.

REFERENCES:
patent: 5828051 (1998-10-01), Goto
patent: 6198565 (2001-03-01), Iseki et al.
patent: 6676020 (2004-01-01), Grant et al.
patent: 6989919 (2006-01-01), Yasui
patent: 7146067 (2006-12-01), Despont et al.
patent: 7161275 (2007-01-01), Yoda

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