Distance measuring device
CA 1300369 C · Owner: Commonwealth Scientific And Industrial Research Organisation · Inventors: Hegedus, Zoltan S.; Higgerson, Graham J.; Dabbs, Timothy P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electro-optic distance or profile measuring device employing a confocal microscope which is confocal in one dimension with an astigmatic light energy beam focused so as to intersect a surface under examination at at least one point. The light energy scattered by the surface is imaged onto a detector whereby analysis of the image intensity distribution provides a measure of the distance from a reference point to the point of contact between the focused line of light energy and the surface.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.