Small-sized video or audio pickup device having a beam deflector

Details Small-sized video or audio pickup device having a beam deflector Small-sized video or audio pickup device having a beam deflector

1980-11-12

1984-03-13

Cardillo, Jr., Raymond F.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 44, G11B 708

Patent

active

044371772

ABSTRACT:
A small-sized video or audio reading pickup device in which a light beam generator generates a light beam directed to a focussing device which focuses the light beam into a beam spot on an information carrier. The focussing device is mounted on an upper portion of a cylindrical hollow support disposed in a resiliently supported frame and a beam deflecting mirror is fixedly mounted within the cylindrical hollow support and independently thereof in vertical alignment with the focussing device. A light beam generated by the beam generating device is laterally directed to and deflected off the deflecting mirror and focused via the focussing device onto the information carrier, with the vertical positioning of the cylindrical hollow support being controlled to control the size of the beam spot. Lateral positioning of the light beam on the carrier is also controlled by lateral translation of the frame, and a photo-sensitive detector is arranged to detect light beam intensity reflected from the carrier.

REFERENCES:
patent: 3924063 (1975-12-01), Simons
patent: 4004081 (1977-01-01), Zorn
patent: 4092529 (1978-05-01), Aihara et al.
patent: 4135206 (1979-01-01), Kleuters et al.
patent: 4193091 (1980-03-01), Kleuters et al.
patent: 4321701 (1982-03-01), Arquie et al.

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