Blue Sky Research

Ross Johnston

James J Snyder

Stephen L Kwiatkowski

A read/write arm for use in an optical memory system. The read/write arm of the present invention has reflective surfaces for directing an optical beam from the arm rotation axis on to an optical disk. The arm features a lightweight lens mounted at one end of the arm for focusing a light beam onto an optical disk. The focal distance of the light beam may be adjusted using piezoelectric actuators mounted on the read/write arm for precisely deflecting the arm. The light beam may be further adjusted through use of a relay lens interposed between a collimating lens and the object lens. This arrangement is advantageously optimized through the use of feedback loops.

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Santa Cruz, CA, United States of America

Ross Johnston