Patent ID: 9585552
Date: 2017-03-07
CPC Classifications: A61B,G02C

Claim:
1. A binocular device for measuring at least one objective ocular refraction characteristic of a subject for a plurality of vision distances, comprising: an optical system for generating a focus of variable proximity, able to generate selectively a first target having a first proximity value P at least one light source able to generate at least one illuminating beam in the direction of the two eyes of the subject; an image-capturing apparatus, said apparatus having a measurement optical axis aligned with a gaze axis of the subject, the angle between the measurement optical axis and the focus optical axis being smaller than 10 degrees, said apparatus being suitable for receiving an ocular refraction beam by refraction of the at least one illuminating beam in the eyes of the subject, the image-capturing apparatus being suitable for capturing a first ocular refraction image of the two eyes when the first target of proximity P a processor suitable for receiving the first ocular refraction image and the second ocular refraction image in order to deduce therefrom a measurement of at least one objective ocular refraction characteristic of the two eyes of the subject depending on the first proximity value P a case holding the focus-generating optical system, the at least one light source and the image-capturing apparatus, the focus optical axis being inclined at an angle alpha to the horizontal, the angle alpha being comprised between +5 degrees and +85 degrees when the case is placed on a horizontal surface, and the image-capturing apparatus and the processor being suitable for measuring pupillary distances for the first proximity value P