System and method for providing an improved test for determining the resolving power of the eye
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United States of America Patent
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N/A
Issued Date -
Oct 3, 2002
app pub date -
Mar 28, 2002
filing date -
Mar 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method is disclosed for determining the resolving power of an eye. An eye is simultaneously illuminated with a first colored light source and a second colored light source. The colored light sources are moved toward the eye. At a point where the eye ceases to resolve the images of the two light sources the two colors of the light sources combine to form a third color. The eye easily perceives the sudden appearance of the third color that indicates the loss of resolution. In an alternate embodiment a display screen provides two colored light sources that flicker at different flicker rates. By selecting certain values for the flicker rates the two colored light sources combine to form a light that does not appear to flicker at the point where the eye ceases to resolve the images of the two colored flickering light sources.
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