Flexible arm piezoelectric lens mover

Details Flexible arm piezoelectric lens mover Flexible arm piezoelectric lens mover

1998-12-11

2000-11-07

Schuberg, Darren

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359201, 359813, G02B 2608

Patent

active

061444782

ABSTRACT:
Raster output scanners having piezoelectric-activated lens movers comprised of a mounting base, an electrically operated piezoelectric element connected to the mounting base, a flexible linkage having a lens mount, and a lens attached to the lens mount. The flexible linkage includes flexible arms that can flex in the predominate direction of motion of the piezoelectric element, but that are substantially rigid in another direction. The flexible linkage is mounted such that the flexible arms bias the lens toward the piezoelectric element. Expansion and contraction of the piezoelectric element, combined with the bias of the flexible arms cause the lens mount and its attached lens to follow the expansion and contraction of the piezoelectric element. The rigidity of the flexible arms hold the lens in the proper focal plane. Beneficially, the piezoelectric element is driven so as to compensate for scan line position errors.

REFERENCES:
patent: 5170089 (1992-12-01), Fulton
patent: 5208796 (1993-05-01), Wong et al.
patent: 5287125 (1994-02-01), Appel et al.

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