Pivotable mirror device for tracking

Details Pivotable mirror device for tracking Pivotable mirror device for tracking

1993-05-17

1993-12-07

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359221, 359224, 369 4416, G02B 2608

Patent

active

052687848

ABSTRACT:
A pivotable mirror device for tracking and for driving a light beam spot in the radial direction of an optical disk includes a mirror holder holding a reflecting mirror pivotably supported by a thin leaf spring. A planar portion of the thin leaf spring is laid on the reflecting surface of the reflecting mirror. The thin leaf spring is constricted between the planar portion and a portion in which the thin leaf spring is attached to a thin leaf spring supporting member to thereby form a torsional portion for pivotal movement thereof. A high attenuation member is attached to the torsional portion.

REFERENCES:
patent: 3532408 (1970-10-01), Dostal
patent: 3799644 (1974-03-01), Street
patent: 4063287 (1977-12-01), van Rosmalen
patent: 4421381 (1983-12-01), Ueda et al.
patent: 4436364 (1984-03-01), Lauer et al.
patent: 4878721 (1989-11-01), Paulsen
patent: 4882723 (1989-11-01), Van Rosmalen
patent: 4919500 (1990-04-01), Paulsen

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