Alignment device for aligning an optical transmitting beam with an optical receiving beam
CA 2220809 A1 · Owner: Oerlikon Contraves Ag · Inventors: Czichy, Reinhard Hanno; Fischer, Edgar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The alignment device (10) is used for aligning an optical transmitting beam with an optical receiving beam. It comprises a rough alignment device and a finealignment device. The rough alignment device has a first mirror (30.1) which, can be rotated by approximately 360° around a first axis (14) in respect to which, the first mirror (30.1) is set at 45°. The rough alignment device furthermore has a second mirror (32.1), which can be rotated by approximately 180° around a second axis (16), in respect to which the second mirror (32.1) is set at 45°. The second axis (16) can be rotated around the first axis (14) so that the second, mirror (32.1) can be rotated within a spatial angle of …
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 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2019.
- 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.