Method for generating images
CA 1304525 C · Owner: Doi, Akio · Inventors: Doi, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of generating images of an object to be projected on a projective plane uses a ray-tracing method which comprises the steps of, for each pel assuming a ray emitted from a selected viewpoint then, determining reflected and refracted rays emitted from the intersection of the assumed ray and its intersection with an object, and sequentially determining the intersection points of successive reflected and/or refractive rays with the object. JA9-87-011
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 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 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.