Optical scanner and scanning type projector

Details Optical scanner and scanning type projector Optical scanner and scanning type projector

2007-05-14

2008-10-14

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

Reexamination Certificate

active

07436567

ABSTRACT:
An optical scanner is provided with a mirror section; a movable frame positioned to surround the mirror section and to support the mirror section with a pair of torsion bars to hold the mirror section therebetween; a stationary frame to surround the movable frame and to support the movable frame with at least a pair of bendable beams, wherein one end of each of the pair of bendable beams is jointed to the stationary frame and the other end is jointed at a pair of joint sections to hold the movable frame therebetween and a first axis connecting the pair of torsion bars is arranged to be perpendicular to a second axis connecting the pair of joint sections; and a pair of actuators provided on the pair of bendable beams and to make the pair of bendable beams to cause a bending oscillation.

REFERENCES:
patent: 6819822 (2004-11-01), Behin et al.
patent: 6859121 (2005-02-01), Arima
patent: 7220009 (2007-05-01), Shimada et al.
patent: 2003-207737 (2003-07-01), None
patent: 2005-148459 (2005-06-01), None

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