Patent ID: 6375325
Filing Date: 2002-04-23
Classification: A61B

Abstract:
A portable digital vertical pupil meter used to measure a distance between any part of a human eye or eyelid and any point of the periphery of a frame of the eyeglasses comprising an elongated case divided into separable parts, a first part having a first opening in a top end provided with a transparent window capable of determining a first reference signal, said first part being also provided in the same area as said first window with two holes, said first part being provided in its interior with a trigger which is linked to the inferior extreme of a lever, which lever has in the other end two pins in the holes; a second part of the case having a top end with a second opening similar and opposed to the first opening, said second opening also provided with a transparent window that is also capable of determining a second reference signal at a point of its height, under said second opening there is provided an area, under which there is a means of traction and thrust externally operable, linked to a lower inferior end of an arm, a top end of the arm having a third reference signal virtually visible from the outside of the case, this third reference signal capable of being projected at a height; and an inner part of the case having an area in which there is an electric source which activates an electronic circuit for measuring the height.