Systems and methods for speckle reduction through bandwidth enhancement
CA 2415142 C · Owner: Martinsen, Robert Jens · Inventors: Martinsen, Robert Jens; Manni, Jeffrey Glenn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser imaging system with reduced speckle is disclosed. The laser imaging system includes spatially superpositioned 1-D arrays or alternatively 2-D arrays of independent emitters of laser radiation with each emitter having a , spectral bandwidth .DELTA..lambda.i centered at some arbitrary wavelength .lambda.0i. The elements of the array are allowed by design, to have a , slightly different central wavelength thereby creating an ensemble bandwidth .DELTA..LAMBDA. which is much greater than the bandwidth .DELTA..lambda.i of any individual emitter in the array. The resulting increased bandwidth reduces speckle in a displayed image.
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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 July 10, 2001 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2023.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.