Laser adjusting apparatus tracking control for use with an optic

Details Laser adjusting apparatus tracking control for use with an optic Laser adjusting apparatus tracking control for use with an optic

1991-12-17

1993-09-21

Psitos, Aristotelis

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4414, G11B 700

Patent

active

052475085

ABSTRACT:
A laser adjusting apparatus includes a laser source, a galvanomirror unit having a galvanomirror which reflects a laser beam from the laser source, and a device which adjusts the direction of the galvanomirror thereby changing the direction of the laser beam reflected by the galvanomirror. A second mirror which reflects the primary reflection light reflected by the galvanomirror unit toward the galvanomirror unit is also provided and a device which reflects the secondary reflection light reflected by the second mirror is made incident upon and reflected by the galvanomirror unit.

REFERENCES:
patent: 3944727 (1976-03-01), Elliott
patent: 3978278 (1976-08-01), Bouwhuis et al.
patent: 5072436 (1991-12-01), Honda
English Abstract to Japanese Patent No. 61-137234.
English Abstract to Japanese Patent No. 62-143236.
English Abstract to Japanese Patent No. 63-160024.
English Abstract to Japanese Patent No. 63-311225.
English Abstract to Japanese Patent No. 60-40029.

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