Electronic flash unit for endoscopy with autodynamic controlled flash energy for automatic exposure of endophotos. A new method.

A high-speed flash unit for endoscopy with autodynamic controlled flash energy provides accurately exposed photos, irrespective of endoscope, localisation, and film material. This system was developed and tested in clinical practice in the Department of Otorhinolaryngology at the University of Freiburg, FRG. The autodynamic system for controlled flash energy guarantees a correct exposure even in the hands of an unskilled person.