Optical pickup

Details Optical pickup Optical pickup

1996-02-07

1998-05-26

Ben, Loha

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369109, G11B 700

Patent

active

057577579

ABSTRACT:
An optical pickup is disclosed including a light source, a light incidence part having a first light focusing unit for focusing the light output from the light source, a perpendicular prism having a total reflecting side placed parallel to a writing side of an optical writing medium, a photodetector detecting light reflected from the total reflecting side of the perpendicular prism by a second light focusing means and the photodetecting unit, a first supporting member supporting the light incidence part, the perpendicular prism and the photodetector, and a second supporting member controlling horizontal and vertical positions of the first supporting member to maintain the horizontal and vertical intervals between the perpendicular prism and the optical writing medium.

REFERENCES:
patent: 5327413 (1994-07-01), Fritz
patent: 5463609 (1995-10-01), Inagaki et al.

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