Thin film actuated mirror array for use in an optical projection system and method for the manufacture thereof
CA 2176111 A1 · Owner: Kim, Dong Kuk · Inventors: Min, Yong Ki; Kim, Dong Kuk; Ji, Jeong Beom
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An array of M x N thin film actuated mirrors For use in an optical projection system comprises an active matrix (52), an array of M x N thin film actuating structures (54), each of the thin Film actuating structures including at least a thin film layer (67) of a motion-inducing material a, pair of electrodes (70, 71), each of the electrodes being provide on top (68) and bottom (69) of the thin film motion-inducing layer (67) an array, of M x N supporting members (56) each of, the supporting members being used for holding each of the actuating structures (54), in place by cantilevering each of the actuating structures and also for electrically connecting each of the actuating structures and …
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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 1, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2016.
- 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
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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.