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Expired Canadian patentCanada

High resolution compact optical sensor for scanning three-dimensional shapes

CA 2086378 C · Owner: Cosnard, Eric · Inventors: Cosnard, Eric; Steuperaert, Jan

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An optical sensor for three dimensional shapes includes a laser that produces a lamellar plane beam which illuminates the surface of an object. The lamellar plane beam produces a curvilinear luminous trace that is scanned by at least one video camera, to produce information that is then converted into digital data representing pixel coordinates. The sensor includes a lightbox having a common housing that is positioned a short distance above the object to be scanned. The lightbox housing also includes a laser source that produces a coll1mated rectilinear beam and an optical device for converting the rectilinear beam into the lamellar plane beam. The lightbox housing also includes a device …

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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

  • Filed December 29, 1992 and granted June 17, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 29, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 29, 1992
GrantedJune 17, 1997
Term endedDecember 29, 2012
Patent numberCA 2086378 C
Classification (IPC)G01B11/24 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 29, 1992Patent grantedJune 17, 1997Term endedDec 29, 2012

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.