Patent Yard Sign in
Expired Canadian patentCanada

Optical calibration system and method

CA 2586586 C · Owner: Baxter, Glenn Wayne · Inventors: Zhou, Hao; Frisken, Steven James; Baxter, Glenn Wayne

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

In an optical system including an optical input port for projecting an input optical signal onto an optical phased matrix array an optical phased matrix , array including a plurality of individually addressable pixels thereon each , said pixel being drivable within a prescribed range of levels and an optical , output port for collecting a predetermined fraction of said optical signal received from said optical phased matrix array; a method of compensating for phase distortions including the steps of: (a) determining a plurality of transfer functions relating said level of each said pixel to the phase variation each said pixel introduces to light from said input optical signal which is …

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 November 8, 2005 and granted January 12, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 2005
GrantedJanuary 12, 2016
Term endedNovember 8, 2025
Patent numberCA 2586586 C
Classification (IPC)G02F1/13 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 8, 2005Patent grantedJan 12, 2016Term endedNov 8, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.