Apparatus for projecting a laser beam in a linear pattern

Details Apparatus for projecting a laser beam in a linear pattern Apparatus for projecting a laser beam in a linear pattern

1983-11-04

1986-05-20

Corbin, John K.

350433, 350620, G02B 1706

Patent

active

045897387

ABSTRACT:
An apparatus for projecting a laser beam linearly on an object, wherein a laser beam, once spread radially by a convex reflector or by a concave lens, is made to converge linearly by means of a cylindrical-concave reflector. The line of light obtained on an object by the apparatus disclosed herein is a constant and non-flickering one, being unlike that obtained by a conventional apparatus which reflects a laser beam by means of a rapidly rotating polygonal-prismatic mirror to give an apparent line of light on an object. The present invention can be embodied so as to give various patterns of lines by making the cylindrical-concave reflector have a plurality of cylindrical-concave reflective surfaces.

REFERENCES:
patent: 3632955 (1972-01-01), Cruickshank et al.
patent: 3883223 (1975-05-01), Hudson
patent: 4054364 (1977-10-01), Webster
patent: 4167662 (1979-09-01), Steen

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