Colour imaging device
CA 1206566 A · Owner: N.V.Philips'Gloeilampenfabrieken · Inventors: Needs, Howard C.; Blok, Lodewijk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
17, ABSTRACT:, A colour filter having filter elements respectively passing light of the colours red (R) green, (G) and blue (B) is provided on a semiconductor image sensor which comprises a system of photosensitive elements. The filter elements are separated by grooves which prevent the running of dye liqiud during dyeing the various systems of filter elements and hence the occurrence of colour defects. Instead of grooves the filter elements may also be separated by regions which have been converted into a structure which is substantially impervious to liquid. The colour filters may also be used in a cathode-ray tube for imaging colour pictures.
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 June 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 2003.
- 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.