Patent ID: 7753522
Filing Date: 2010-07-13
Classification: A61B

Abstract:
1. A focusing device for opthalmological equipment based on the nonmydriatic principle, in particular fundus cameras, comprising: a projection unit which projects at least one focusing mark in the infrared spectral region on a surface in the eye; a focusing unit; said projection unit and focusing unit being displaceable along the optical axis; said projection unit being arranged in an illumination portion of an illumination beam path and said focusing unit being arranged in an observation beam path, where the illumination portion of the illumination beam path, in which the projection unit is arranged, is separate and distinct from the observation beam path; and a control unit; wherein said displacement of the projection unit and focusing unit can be carried out both simultaneously and individually, or in the alternative, by electronically controllable adjusting elements based on corresponding presets of said control unit.