Eye's optical characteristics measuring system

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C351S205000

Reexamination Certificate

active

11402736

ABSTRACT:
An eye's optical characteristics measuring system, comprising a first target projection optical system for projecting a target image on a fundus of an eye under test, a first photodetecting means for receiving the target image reflected from the fundus of the eye under test from the first target image projecting optical system, an ocular refractive power measuring unit for measuring ocular refractive power of the eye under test based on photodetection result from the first photodetecting means, a second target projecting means for projecting a spot-like target image to the fundus of the eye under test, a second photodetecting means for receiving the target image reflected from the fundus of the eye under test, and an eye's optical characteristics measuring unit for measuring ocular refractive power based on two or more images acquired at a predetermined refractive degree pitch before and after centering the refractive degree of the eye under test obtained by the second photodetecting means.

REFERENCES:
patent: 5500697 (1996-03-01), Fujieda
patent: 6217172 (2001-04-01), Shibutani et al.
patent: 6629761 (2003-10-01), Hirohara et al.
patent: 6789900 (2004-09-01), Van de Velde
patent: 6824269 (2004-11-01), Takeuchi et al.
patent: 1-129830 (1989-05-01), None
patent: 2002-209852 (2002-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Eye's optical characteristics measuring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Eye's optical characteristics measuring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eye's optical characteristics measuring system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3748352

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.