Method for a adjusting a beam splitter in an optical recording a

Details Method for a adjusting a beam splitter in an optical recording a Method for a adjusting a beam splitter in an optical recording a

1993-10-28

1995-04-25

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

359629, 2502015, 356138, G11B 700, G01J 120, G01B 1126

Patent

active

054105323

ABSTRACT:
A method of adjusting a beam splitter of an optical information recording/reproducing apparatus is provided. The optical information recording/reproducing apparatus includes a laser light source, an objective optical system for converging the light beam from the laser light source, a guide rail mechanism for moving the objective optical system, a beam splitter mounted in an optical path of the light beam parallel to the transfer direction and photodetectors for detecting the light beam split by the beam splitter. The method of adjusting the beam splitter includes supporting a supplementary laser source for emitting a laser beam on the guide rail mechanism so that the laser beam of the supplementary laser source is incident onto the beam splitter along the optical path. The method further includes adjusting the beam splitter, while observing the split laser beam from the beam splitter at plural points where the photodetectors are to be mounted.

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