Stereoscopic viewer
CA 1190776 A · Owner: Compagnie Du Materiel De Micrographie C.M.M. · Inventors: Gresse, Herve R.; Carn, Annick R.
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 a stereoscopic viewer which comprises optical elements permitting simultaneous examination, through two eyepieces of two successive panoramic images in a film of panoramic exposures, the elements defining an optical path between each of the two images and its relevant eyepiece, and control elements for displacing one of the two images received by the observer in relation to the other; the optical elements comprise, for each optical path, on the one hand, a set of mirrors providing an odd number of reflections and, on the other hand a total-, reflection prism, preferably a right prism the two, prisms having, as a base, an isosceles triangle; the faces of 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
- Granted July 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2002.
- 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.