Optocoupler having internal reflection and improved isolation capabilties
CA 1137603 A · Owner: General Electric Company · Inventors: Cook, James C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The optocoupling between an optical source and an optical sensor is enhanced while retaining a high dielectric strength by providing a homogeneous medium which surrounds the source and the sensor and has an inner light-transmissive region and an outer light-reflective region encapsulated within a substantially opaque body. The homogenous medium is formed by applying an opticallytransmissive material to the source and the sensor to couple them optically. The optically-transmissive material is only partially cured before applying an opticallyreflective material which, when fully cured along with the optically-transmissive material, does not form an isolation-degrading boundary therebetween.
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
- Granted December 14, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 1999.
- 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.