Optical pickup device having optical element exhibiting polarize

Details Optical pickup device having optical element exhibiting polarize Optical pickup device having optical element exhibiting polarize

1996-04-17

1997-11-04

Edun, Muhammad N.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369112, 369 4441, G11B 7135

Patent

active

056847807

ABSTRACT:
An optical pickup device having polarization selective optical components on its light path for splitting the incident light into plural light beams having different polarized states for generating a variety of error signals based upon the plural split light beams, and an optical apparatus on which is mounted the optical pickup device.

REFERENCES:
patent: 5016234 (1991-05-01), Nakamura et al.
patent: 5105410 (1992-04-01), Maeda et al.
patent: 5307335 (1994-04-01), Komiya
patent: 5337300 (1994-08-01), Takishima et al.
patent: 5404490 (1995-04-01), Matsubayashi et al.
O plus E, Mar. 1991 issue, pp. 86-90.

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