Rotary head actuator for optical disk

Details Rotary head actuator for optical disk Rotary head actuator for optical disk

1989-06-29

1992-10-06

Weinhardt, Robert

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4417, 369 4419, 369112, G11B 709

Patent

active

051538709

ABSTRACT:
A rotary actuator for an optical head comprises a pair of reflectors mounted respectively on the end of the arm and on the pivot axis to define an optical path via the arm to an optical disk for an external beam directed along the pivot axis. Special arm geometry reduces variable head skew and consequent image rotation. A multiple platter design features optical switches effectively aligned on the pivot axis.

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patent: 4818052 (1989-04-01), Le Pesant et al.
"Optical Switches, two from Thomson-CSF", Photonics Spectra, Apr. 1986.
Keiichi Yoshizumi et al., "Fast Access Actuator for Optical Disk Memory" 1985 Optical Society of Amer.
Schultz & Kry, "Rapid Access Sys. for Optical and Magneto-Optical Disk Storage" IEEE.

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