Autostereoscopic presentation system
CA 2095612 A1 · Owner: Tichenor, Clyde L. · Inventors: Ginsburgh, Irwin; Zuchowski, Larry; Zuchowski, Larry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An autostereoscopic presentation system (10) that allows a perceived three-dimensional volumetric image (26) to be viewed without any viewing implements. The system (10) in its preferred, embodiment, consists of an enhanced film strip (12) having first and second photographic frames (14), (18) where each frame consists of a two-dimensional optical image (16), (20) further having a conventional image (16a), (20a) and a matted image (16b) (20b). The, film strip is back projected onto two stationary screens (30) (32), that are juxtaposed in planar separation and where each screen operates in either a translucent mode or a clear mode. A timing and synchronizing circuit (40) in combination with …
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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 November 15, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2013.
- 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.