Apparatus for projecting a laser beam in a linear pattern
CA 1260298 A · Owner: Ozaki, Yasuto · Inventors: Ozaki, Yasuto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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 cylindricalconcave 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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.