Color filter arrays
CA 1293879 C · Owner: Pace, Laurel Jean · Inventors: Pace, Laurel Jean; Blood, Jeffrey Carlyle
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A color filter array is disclosed comprised of red, green, and blue filters forming an interlaid pattern. Each of the red, green, and blue filters is formed of two superimposed filter layers each made, up of a different subtractive primary dye. Layers of controlled thickness containing a single dye permit precise control of filter density and hue. The color filter array can form part of a viewable display unit or form part of an image sensor.
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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
- 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.