Generation of parallel second harmonic light rays using an optical fiber
CA 1314744 C · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Uemiya, Takafumi; Uenishi, Naota
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement for generating light at a second harmonic of an input light at a fundamental frequency/wavelength. Light at the fundamental frequency/wavelength is generated by a laser and impinges upon an input end of an optical fiber. The optical fiber has a non-linear optical characteristic and generates a second harmonic of the input light. The second harmonic which exits the fiber has an axisymmetrical and conical equiphase wave surface. A collimator lens collimates the second harmonic and parallel light rays are produced on the output side of the lens.
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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
- Granted March 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 2010.
- 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.