Array of thin film actuated mirrors for use in an optical projection system and method for the manufacture thereof
CA 2176347 A1 · Owner: Min, Yong Ki · Inventors: Min, Yong Ki; Kim, Myoung Jin
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 (51) for use in am optical projection system comprises an active matrix, an array of M x N thin film actuating structures each of the thin film actuating structures being provided with a first and a second actuating parts (62a, 62b), each of the first and second actuating parts including at least a thin film layer (67) of a motion-inducing material a pair of electrodes (70, 71), each of the electrodes being provided on top and bottom of the motion-inducing thin film layer an, array of M x N supporting members (56) each, of the supporting members (56) being used for holding each of the actuating structures in place by cantilevering each 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
- Filed November 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.