Pupil measuring apparatus

Details Pupil measuring apparatus Pupil measuring apparatus

2006-08-01

2006-08-01

Iman, Ali (Department: 3735)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S200000, C351S204000, C351S205000, C351S221000, C351S246000

Reexamination Certificate

active

07083280

ABSTRACT:
A pupil measuring apparatus includes a mark placed in a space where a background is observable by both eyes; a mark moving device for moving the mark between the eyes and the background; an illumination optical system for illuminating the eyes from the background side; two cameras for respectively imaging the pupils of the eyes; a calculating means for calculating areas or diameters of the respective pupils thus imaged, from video signals of the two cameras; and a display for providing an output of a graph showing change in the areas or diameters of the two pupils calculated against a position of the mark or a time associated with the position on a single screen.

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