DEVICE AND METHOD FOR DETERMINING CENTERING DATA USED FOR EYEGLASSES

摘要

An apparatus ( 3 ) for determining centering data for eyeglasses ( 2 ) comprises a fixation device ( 5 ) and a recording unit ( 4 ) that can be triggered by a computer, records electronic images, and is disposed behind a divider element ( 8 ). The fixation device ( 5 ) produces at least one speckle pattern. The speckles can be superposed by different patterns, for example, a cross shape. The invention further relates to a method for determining centering data. The inventive method and apparatus allow to measure for test persons having the most different acuity of vision the relative centering data from a short distance while maintaining their usual posture.