Ocular measurement apparatus and method

Details Ocular measurement apparatus and method Ocular measurement apparatus and method

2008-06-24

2008-06-24

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

C351S239000, C351S243000, C351S246000

Reexamination Certificate

active

07390090

ABSTRACT:
According to an aspect of the present invention, there is provided a measurement apparatus for measuring a property of an eye of a subject, having a target arranged to be viewed by the subject, the target including a first light and a second light arranged to undergo a modulation in anti-phase, the modulation decreasing from an initial modulation frequency at which an initial flicker of the first light and second light is not perceivable by the subject; and an indication device allowing the subject to indicate when a flicker is perceived, the modulation frequency at which the subject indicates that the flicker is perceived being defined as a threshold modulation frequency.

REFERENCES:
patent: 4511228 (1985-04-01), von Gierke et al.
patent: 4940323 (1990-07-01), Downing
patent: 5381195 (1995-01-01), Rootzen et al.
patent: 6017122 (2000-01-01), Bone et al.
patent: 6315412 (2001-11-01), Snodderly et al.

Affiliated with

Also associated with

Rating

Ocular measurement apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ocular measurement apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ocular measurement apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2802673