DEVICE AND METHOD FOR THE AUTOMATIC FOCUSING OF A NON-MYDRIATIC FUNDUS CAMERA

摘要

The invention relates to a non-mydriatic fundus camera, consisting of a focusing mark unit (3) disposed in the illumination beam path (1), generating at least one focusing mark in the infrared spectral region, having a focusing aid adjusting unit (4) for projecting onto the fundus oculi (S), an IR sensitive imaging sensor (9) disposed in the imaging beam path, having an image processing unit (10) for observing and recording the fundus oculi, having an imprinted focusing mark, and a control and analysis unit, wherein actuating signals are generated by the control and analysis unit (12) both for the focusing aid actuating unit (4) and for the focusing actuating unit (11) during the analysis of the images of the fundus oculi with an imaged focusing mark that are recorded by the sensor (9) having an image processing unit (10), for balancing any refractive imaging errors of the main lens disposed in the imaging beam path.