Ophthalmic refractor and method of ophthalmic refractor signal analysis
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 5, 2019
Grant Date -
Sep 20, 2012
app pub date -
Mar 14, 2012
filing date -
Mar 15, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ophthalmic refractor is described that provides a non-linear relationship between spherical power and refractive error by positioning a reference plane for a sensor system of the refractor in front of the cornea. The refractor may have a working distance and dynamic range that enable it to be mounted on a surgical microscope. Also described are computational methods for analysing the output from the ophthalmic refractor, utilising error minimisation, linear regression and Fourier Transform analysis.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully