Apparatus and methods relating to wavelength conditioning of illumination
CA 2474832 C · Owner: Mackinnon, Nicholas B. · Inventors: Stange, Ulrich; Macaulay, Calum E.; Mackinnon, Nicholas B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lighting systems comprising a spectrum former upstream from a reflective pixelated spatial light modulator (reflective SLM) the SLM reflecting , substantially , all of the light in the spectrum into at least two different light paths that , do not , reflect back to the light source or the spectrum former. At least one of the light , paths acts as a projection light path and transmits desired light out of the lighting , system. The lighting systems provide virtually any desired color(s) and intensity(s) of light, and avoid overheating problems by deflecting unwanted light , and other electromagnetic radiation out of the system or to a heat management system. The systems can be part of …
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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 February 1, 2002 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2024.
- 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.