System for measuring the optical image quality of an eye in a contactless manner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2006
Grant Date -
Apr 1, 2004
app pub date -
Aug 31, 2001
filing date -
Aug 31, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system is used for contactless measurement of the optical imaging quality of an eye with an interferometer by which at least one light pulse with a short coherence length is coupled into the eye from a light source. The optical path length of at least one arm of the interferometer is varied for measuring the length of the eye until a typical interference pattern between a reflection of the cornea and a reflection of the retina of the eye occurs in a detector. This interference pattern together with a known path segment of the variation of the optical path length allows conclusions to be made about the length of the eye. The variation of the optical path length is carried out by introducing at least partially optically transparent elements and by at least one element of the interferometer which is movable in a defined manner in at least one of the light paths of the interferometer.
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