Circuit for calculating the position of the eye

Details Circuit for calculating the position of the eye Circuit for calculating the position of the eye

1981-05-11

1983-06-14

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351209, A61B 314

Patent

active

043879748

ABSTRACT:
An eye position measurement circuit is disclosed for calculating the posin of the cornea of the human eye. The eye position measurement circuit includes a dual axis infrared light detector which will sense the position of the cornea of the eye upon receiving pulsed infrared light reflected from the cornea of the eye. The dual axis infrared light detector is, in turn, connected in unique combination with filters, absolute value circuits, analog-to-digital converters, latches, a digital computer, and other electronic components for calculating the position of the cornea of the human eye.

REFERENCES:
patent: 3217706 (1965-11-01), Sullivan
patent: 3473868 (1969-10-01), Young et al.
patent: 4169663 (1979-10-01), Murr

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