Optical system support and positioning device for use in an opti

Details Optical system support and positioning device for use in an opti Optical system support and positioning device for use in an opti

1983-12-08

1986-06-24

Punter, William H.

350255, G02B 702, G02B 704

Patent

active

045964483

ABSTRACT:
An improved optical system support and positioning device for use in an optical reading apparatus, for instance, an optical or audio disc reading apparatus, in which the tracking function of the optical system is improved. An electromagnetic positioning structure moves the optical system parallel and perpendicular to the direction of the optical axis of the optical system while the optical system is supported by a support element. The support element includes a pair of cantilevered flexible members, a pair of substantially parallel support members, and an intermediate section joining ends of the flexible members and support members. In accordance with the invention, the distance between fixed ends of the support members is greater than the distance between the free ends thereof.

REFERENCES:
patent: 4030815 (1977-06-01), Addrevski et al.
patent: 4215915 (1980-08-01), Freiberg
patent: 4385373 (1983-05-01), Howe
patent: 4449213 (1984-05-01), Noborimoto et al.
patent: 4479051 (1984-10-01), Musha

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