Optics: eye examining – vision testing and correcting – Eye examining or testing instrument
Reexamination Certificate
2005-01-11
2005-01-11
Casler, Brian L. (Department: 3737)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
C600S558000
Reexamination Certificate
active
06840622
ABSTRACT:
The invention relates to a method and system for determining the topography for reaction signals of an eye. The reaction signals of cyclic luminous excitations are simultaneously measured on partial surfaces of the retina by using, for each partial surface, another integer number of oscillations in a predetermined time segment. These oscillations are derived from a clock rate. In the time segment, a smaller number of oscillations occur by prolonging a clock pulse by an appointed interval, and a greater number of oscillations occur by shortening the clock pulse by an appointed interval. The cumulative signal recorded on the patient contains the sum of the reaction signals and is digitized in an amplified and filtered manner with the clock pulse for generating the oscillations. The reaction signals of the individual partial surfaces are recovered by cyclic summation. This is effected by, for the corresponding partial surfaces, removing values at the prolonged locations or inserting the mean values of adjacent measuring points at the shortened locations.
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Grünewald Jens
Kutschbach Johanna Jutta
Casler Brian L.
Greenberg Laurence A.
Locher Ralph E.
Medizin & Service GmbH
Sanders John R.
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