Apparatus for the iris acquiring images
CA 2264029 A1 · Owner: Hanna, Keith James · Inventors: Chmielewski, Thomas A. Jr.; Mandelbaum, Robert; Mishra, Deepam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
AT LEAST ONE WIDE FIELD OF VIEW CAMERA (3) AND WITH AN ASSOCIATED ILLUMINATOR (6, 10) OBTAINS SUFFICIENT IMAGES OF A PERSON TO BE IDENTIFIED SO THAT X Y, Z , COORDINATES CAN BE ESTABLISHED FOR THE EXPECTED POSITION OF THAT PERSON'S EYE. THE COORDINATES ARE USED TO DIRECT A NARROW FIELD OF VIEW CAMERA (16) AND ASSOCIATED ILLUMINATORS (21-23) TO TAKE AN IMAGE OF THE EYE (76 78) THAT CAN , BE USED FOR TO IDENTIFYING THE PERSON USING IRIS VERIFICATION AND RECOGNITION ALGORITHMS. THESE ILLUMINATORS ARE POSITIONED AND ILLUMINATED TO ELIMINATE OR MINIMIZE SPECULARITIES AND REFLECTIONS THAT OBSCURE THE IRIS (76).
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 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2019.
- 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.