Pickup device for otpical disk

Details Pickup device for otpical disk Pickup device for otpical disk

1996-03-29

1997-12-30

Edun, Muhammad N.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4414, G11B 712

Patent

active

057038643

ABSTRACT:
An optical pickup device includes an objective lens assembly including an objective lens facing a surface of an optical disk, an actuator base supporting the objective lens to be movable, and a body in which an optical element is accommodated, the actuator base being supported by the body to be slidable. The actuator base is provided with a first flat portion positioned in a vicinity of the optical disk surface and a second flat portion apart from the optical disk surface, the first and second flat portions being formed with first and second protruded pieces having spherical end surfaces, and the body is formed with first and second receiving portions against which the first and second protruded pieces abut, respectively. The optical body is composed of a first supporting portion for supporting the first flat portion, a second supporting portion for supporting the second flat portion and an intermediate portion disposed below the first flat portion.

REFERENCES:
patent: 5410532 (1995-04-01), Ohno et al.

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