Optical glare limiter
CA 2381440 A1 · Owner: Braun, Uwe Peter · Inventors: Braun, Uwe Peter
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 glare limiter (16) which uses an electrical power source and which can, in particular be used in motor , vehicles. Said optical glare limiter is comprised of a light receiver module (4) and of a light source (2). The incident luminous radiation of the light source of the glare limiter on a reflective surface can be regulated according to the intensity of the incident luminous radiation of an external glare source (18) on the light receiver module. Said incident luminous radiation of the light source can be regulated by an electronic control device (6) in such a way that the light in the visual field of the vehicle driver has approximately …
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 August 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 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
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.