Laser instrument for tracing reference lines and other geometric

Details Laser instrument for tracing reference lines and other geometric Laser instrument for tracing reference lines and other geometric

1994-02-22

1995-03-28

Cuchlinski, Jr., William A.

Geometrical instruments

Straight-line light ray type

Alignment device

33290, 33291, 33DIG21, 356138, 353 43, C01C 1502

Patent

active

054005140

ABSTRACT:
Various devices are disclosed for projecting a beam of coherent collimated light at a surface for use as reference lines and planes. The devices are also useful for projecting tracings of light in any of various geometric patterns. The devices comprise a pointer unit containing a light source, such as a laser diode. The light source is mounted so as to undergo periodic reciprocating motion in least one dimension, as imparted by any of various possible mechanisms. Combinations of such motions in two dimensions allows production of an infinite variety of geometric tracings. The pointer unit can be detachably mounted perpendicularly to a rotatable shaft provided by a base portion, or used separately as a level or hand-held pointer.

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