Laser rotary double crossliner

Details Laser rotary double crossliner Laser rotary double crossliner

1997-12-12

2000-05-23

Hirshfeld, Andrew H.

Geometrical instruments

Straight-line light ray type

Level

33276, 33286, 33DIG21, 356138, G01B 1126

Patent

active

060652179

ABSTRACT:
A laser crossline device suitable for construction includes at lease a first and a second laser beam produced by diode modules. The diode modules revolve around a horizontal axis so as to form a 360.degree. laser scanning plane that is perpendicular to the horizontal axis of the module. The plane can be adjusted with a bubble level and an adjustment screw. The two modules are situated so as to generate planes that intersect at a right angle. The line of intersection forms a plumb line. If desired, a third orthogonal plane can be added to the device. A single rotary motor drives all of the diode modules.

REFERENCES:
patent: 3462845 (1969-08-01), Matthews
patent: 4333242 (1982-06-01), Genho, Sr.
patent: 4751782 (1988-06-01), Ammann
patent: 5218770 (1993-06-01), Toga
patent: 5505000 (1996-04-01), Cooke
patent: 5539990 (1996-07-01), Le
patent: 5748306 (1998-05-01), Louis
patent: 5864956 (1999-02-01), Dong

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