Discrete element light modulating microstructure devices
CA 2307880 A1 · Owner: Teloptics Corporation · Inventors: Romanovsky, Alexander B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A light modulating or switching array (10) having a plurality of discrete protrusions (16) formed of electro-optic material each of which is , electrically and optically isolated from each other. The protrusions (16) have defined a top face (20), a bottom face (30) first and second side faces (22, 24), and front and back faces (26 28). There is a plurality of electrodes (34) associated with each of the protrusions (16) these electrodes (34) being , capable of inducing an electric field in the electro-optic material for independently modulating a plurality of light beams which are incident upon one of the faces (20, 22, 24, 26, 28, 30) of the protrusions (16). The electrooptic material …
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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 October 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2020.
- 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.