Laser leveling device

Details Laser leveling device Laser leveling device

1996-01-11

1998-10-13

Fulton, Christopher W.

Geometrical instruments

Straight-line light ray type

Level

33227, 33228, 33281, 33286, 33DIG21, G01B 1126

Patent

active

058194240

ABSTRACT:
The present invention provides a laser leveling device, which comprises a light emitting unit for irradiating a laser beam, a rotating unit for rotating the laser beam for scanning, and a means for turning off the scanning laser beam so that a spotlike is formed in a specific direction. By forming a reference spot light, and aligning an irradiating point of the spot beam with the reference point, it is possible to install the laser leveling device 1 to the reference point and to perform accurate positioning of the laser leveling device by the scanning line of the laser beam formed on a portion other than the spot.

REFERENCES:
patent: 3988837 (1976-11-01), Benson
patent: 4718171 (1988-01-01), Schlemmer et al.
patent: 4751782 (1988-06-01), Ammann
patent: 4988192 (1991-01-01), Knittel
patent: 5519942 (1996-05-01), Webb

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