Method and apparatus for measuring optical aberrations of an eye
CA 2404061 A1 · Owner: Wei, Jay · Inventors: Meyer, Scott A.; Horn, Jochen M.; Foley, James P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Embodiments of the present invention provide a method and apparatus for measurement of aberration of an eye. One or more embodiments provide an aberration, measurement instrument that enables measurement wherein Hartmann-Shack spots have, reduced speckle; one or more embodiments provide an aberration measurement instrument, that enables measurement of an eye having a large diopter power variation over different, zones of the eye; one or more embodiments provide an aberration measurement instrument, that enables measurement with accommodation control; one or more embodiment provide, an aberration measurement instrument wherein radiation reflected by a cornea and, radiation scattered …
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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 September 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2024.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.