Laser leveling system

Details Laser leveling system Laser leveling system

1997-01-16

1999-06-01

Fulton, Christopher W.

Geometrical instruments

Straight-line light ray type

Level

33281, 33286, 33293, 33DIG21, G01B 1126

Patent

active

059079070

ABSTRACT:
The present invention provides a laser leveling system for forming a reference line or a reference plane by a laser beam. The laser leveling system comprises a laser light emitting means for emitting a laser beam, a projection optical system for projecting the laser beam irradiated from the light emitting means, a rotating unit for rotating the light beam projected by the projection optical system, and a leveling means for tilting the rotating unit, whereby a horizontal reference plane and a vertical reference plane are formed by the light beam, and a reference irradiation spot is formed on the horizontal reference plane or on the vertical reference plane.

REFERENCES:
patent: 3471234 (1969-10-01), Studebaker
patent: 3988837 (1976-11-01), Benson
patent: 4718171 (1988-01-01), Schlemmer et al.
patent: 4988192 (1991-01-01), Knittel
patent: 5218770 (1993-06-01), Toga
patent: 5539990 (1996-07-01), Le
patent: 5689330 (1997-11-01), Gerard et al.

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