Automatic pupillometer with visual verification
View Patent ↗The invention relates to an automatic pupillometer comprising a light source suitable for generating a corneal reflection on at least one of the eyes of an individual facing first and second windows, a collimator lens serving at least to position the light source to correspond to far vision of the individual, a detection receiver for automatically locating said reflection, and a calculator for calculating the pupillary distance of said individual. According to the invention, the pupillometer also comprises a third window where the eye of an observer responsible for the measurement is designed to be placed in the vicinity of the focus of said lens so as to view and verify measurement conditions.
1. An automatic pupillometer comprising;
a light source suitable for generating a corneal reflection on at least one of the eyes of an individual facing first and second windows,
a collimator lens serving at least to position the light source to correspond to far vision of the individual,
a detection receiver for automatically locating said reflection, and
a calculator for calculating the pupillary distance of said individual, wherein the pupillometer has a third window where the eye of an observer responsible for the measurement is designed to be placed in the vicinity of the focus of said lens so as to view and verify measurement conditions.
2. A pupillometer according to claim 1 , wherein said pupillometer includes actuator means designed to be actuated by said observer and to confirm said measurement.
3. A pupillometer according to claim 1 , wherein said detection receiver is a camera.
4. A pupillometer according to claim 1 , wherein said pupillometer includes at least one mirror serving to transfer said corneal reflection towards said detection receiver.
5. A pupillometer according to claim 1 , wherein said pupillometer includes a monocular occultation arrangement.
6. A pupillometer according to claim 1 , wherein said occultation arrangement comprises two screens having electrically-controlled diaphragms that are disposed respectively facing the first and second windows.
7. A pupillometer according to claim 1 , wherein said calculator includes a module for calculating the pupillary distance of said individual in near vision.
8. A pupillometer according to claim 1 , wherein said calculator includes a module for calculating the radius of the eye of said individual.
9. A pupillometer according to claim 1 , wherein said calculator includes a module for correcting said measurement as a function of the distances of the eyes of said individual from the corresponding eyeglass lenses.
10. A pupillometer according to claim 1 , wherein said light source is an infrared source.
11. A pupillometer according to claim 1 , wherein said pupillometer also includes a light source for near vision measurement.