Optical module
CA 2358159 A1 · Owner: Nippon Sheet Glass Co. Ltd. · Inventors: Zhu, Xiaofan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical module for optically coupling an input side and an output side with each other through an optically functional portion inserted between the input side and the output side. At least one of the input side and the output side includes a plurality of collimators. At least one of the collimators is made different from the other collimators in at least one of the distance between the focal point of a corresponding lens and a corresponding light exit or incident surface the numerical, aperture of the light exit or incident surface the effective, focal length of the lens the wavelength used and the distance, between optical axes of adjacent ones of the collimators so that the size and …
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 October 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 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
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.