Optical head with flying lens

Details Optical head with flying lens Optical head with flying lens

1988-05-12

1992-04-14

Envall, Jr., Roy N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 13, 369 44280, 369112, 369118, G11B 709

Patent

active

051054086

ABSTRACT:
A micro-objective lens is carried on an air bearing slider with an optical passage through which the lens focuses an energy beam onto a spot on an optical data storage medium. The slider accomplishes automatic focusing. An RF coil is affixed to the slider facing the storage medium and surrounding the beam axis. The proximity of the coil lowers power switching requirements.

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patent: 4890178 (1989-12-01), Ichihara
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