Rear projection screen
CA 1181272 A · Owner: Mitsubishi Rayon Co. Ltd. · Inventors: Inagaki, Koichi; Yata, Yukio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is a rear projection screen having a front surface receiving light rays from a projector and a viewing surface formed with a lenticulated surface in which lenticules each consisting of a crest a trough, and a flank interconnecting the crest and trough are continuously laid. The flank surface is provided with on at least a part thereof, a total reflecting surface on which all light rays impinging thereto are reflected and then emanate from the crest through a medium interface thereof.
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 January 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 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.