Laser beam controller for surveying equipment

Details Laser beam controller for surveying equipment Laser beam controller for surveying equipment

1990-11-16

1992-02-25

Albritton, C. L.

Electric heating

Metal heating

By arc

21912162, 250205, B23K 2600

Patent

active

050916270

ABSTRACT:
A laser beam controller for surveying equipment comprises a laser beam irradiation unit for irradiating a target with a laser beam, an observation unit for observing the laser beam reflected from the target and a light quantity controlling unit for controlling the quantity of the laser beam projected to the target. The laser beam controller is capable of constantly controlling the quantity of the laser beam incident on the observation optical system within a range which allows the observation of a laser beam spot and which has no harmful influence on the observer's eyes.

REFERENCES:
patent: 3533707 (1965-06-01), Weiss
patent: 3864037 (1975-02-01), Johnson
patent: 4443696 (1984-04-01), Taboada

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