G - Physics – 02 – B
Patent
G - Physics
02
B
88/113, 345/46
G02B 17/00 (2006.01) G01B 11/26 (2006.01) G02B 27/30 (2006.01)
Patent
CA 1093361
REFLECTIVE LASER LINE GENERATOR Abstract of the Disclosure Apparatus for reflectively generating a straight line light path from a laser beam comprises a planar re- flective surface which is arranged to reflect the laser output beam approximately 90°, and an arcuate reflective surface, such as a hollow cylinder, which is located rela- tive to the planar reflective surface such that the reflec- ted beam is impinged thereon normal to its axis of curva- ture. The cylinder is arranged with its axis of curvature parallel to and offset from the laser output beam so that every increment of the columnar reflected beam strikes it at a point having a tangent which is at a different angle with respect to the reflected beam than every other incre- ment of the beam. Accordingly, each increment of the beam is reflected from the arcuate reflective surface at a different angle, thereby creating a fan shaped pattern of light. The planar mirror is angularly adjustable, for directing the reflected beam onto the arcuate reflective surface along a single circumferential line for making the resulting fan shaped beam straight and perpendicular to the axis of curvature of the cylinder. Also, both the amount of offset and the angle of the axis of curvature of the cylinder are adjustable for adjusting respectively the included angle of the fan and its straightness and perpendicularity.
286537
Gowling Lafleur Henderson Llp
Industrial Electrical Control Corp.
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