Apparatus for locating an object and light transmitter
CA 2081841 A1 · Owner: Marszalec, Janusz · Inventors: Keranen, Heimo; Marszalec, Janusz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an apparatus for locating an object with the aid of optical radiation. The apparatus comprises a light source (1) comprising a plurality of light elements (2); an optical detector (3); optical means (5,6) comprising light source optics (5) and detector optics (6); and a control unit (7) which is disposed to activate such light elements (2) as are desired, to locate the light signals incident on the location sensitive optical detector (3) and on the, basis of the location of the active light element and of that of the detection site to calculate the distance of the object's surface by the triangulation principle. As taught by the invention the light source (1) and, the …
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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 October 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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.
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.