Optical arrangement for symmetrizing the radiation of two-dimensional arrays of laser diodes
CA 2368958 A1 · Owner: Possner, Torsten · Inventors: Possner, Torsten; Schreiber, Peter; Goring, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an optical arrangement for symmetrizing the radiation of a plurality of laser diodes that are arranged adjacently to each other and on top of each other, in a fixed manner relative to each other. The output radiation of each laser diode is unsymmetrical in relation to a first direction (the y axis) and a second direction (the x axis) which are perpendicular in relation to each other. The inventive optical arrangement is particularly for use for symmetrizing the radiation of laser diode bars that are stacked on top of each other, forming a laser diode stack. A plurality of microcylindrical lens units (2a, 2b, 2c) with sufficient isoplanacy are arranged in …
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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 March 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2022.
- 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.