Opto-electronic angle measurement system
CA 1307663 C · Owner: Metronor A/S · Inventors: Rotvold, Oyvind; Pettersen, Alf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an opto-electronic angle measurement device, methods for calibrating the device for twodimensional angle measurement systems, as well as an optoelectronic system for simultaneous measurements of the three dimensional coordinates of a plurality of points on a surface. The angle sensor is design as a camera that includes lens forming images onto a two-dimensional array of photosensitive elements, e.g. a CCD or CID sensor. The lens has a well defined centre of rotational symmetry, giving an unambiguous definition of spatial directions, as the images of all points located in the same direction relative to this point are exactly overlapping. The angle sensors are …
Read the whole patent
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 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
- 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.