Beam position control for a laser machine device

Details Beam position control for a laser machine device Beam position control for a laser machine device

1985-02-13

1986-10-21

Paschall, M. H.

Electric heating

Metal heating

By arc

219121LU, 219121LV, 219121L, 219121LZ, 356152, B23K 2700

Patent

active

046187596

ABSTRACT:
The invention is directed to an arrangement for compensating for offset and angular errors of a laser coupled into a processing machine or measuring machine. The laser is mounted separately from the machine. The arrangement includes two adjustable mirrors by means of which the beam position at the coupling point is maintained constant. The corrective signal is generated by quadrant detectors cooperating with the adjustable mirrors arranged in the path of the laser beam. The detectors are arranged to receive rays of light diverted from the path of the laser beam. One of the detectors is preceded by a collimator causing the detector to respond only to angular errors.

REFERENCES:
patent: 3902036 (1975-08-01), Zaleckas
patent: 4289378 (1981-09-01), Remy et al.
patent: 4429211 (1984-01-01), Carstens et al.
patent: 4503313 (1985-03-01), Tsutsumi

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