Slm spectrometer
CA 2084923 A1 · Owner: Texas Instruments Incorporated · Inventors: Stafford, Ronald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A SLM spectrometer is provided that employs an entrance slit (40) or a collimator (42) to provide parallel rays of radiation to a prism (44) which disperses the incident radiation into an associated wavelength spectrum. The resulting spectrum from the prism (44) is incident upon a spatial light modulator (SLM) (46), such as a deformable mirror device (DMD). By selectively activating (or deactivating) a small portion of the surface of the SLM, i.e. a cell on the SLM it is possible to, selectively reflect or transmit a portion of the spectrum incident upon the SLM onto a focusing device, such as a parabolic focusing mirror (48). The focusing device in turn focuses the portion of the spectrum …
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
- Filed December 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2014.
- 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.