Fall-out proof lamp especially for medical use with at least one discharge tube having supply unit connected to current supply additional safety current supply for charging over to reserve stand-by current source in event of mains failure

摘要

#CMT# #/CMT# The fail-safe lamp is designed so that the electric voltage supply unit (EVG,9) has a buffer storage, which with the occurrence of a disturbance to the electric supply, is provided for the output of electric power, for the operation of the discharge lamp (16), during the changeover to the back-up current supply. The buffer storage is an electric capacitor. #CMT#USE : #/CMT# Fail safe lamps e.g. for medical use. #CMT#ADVANTAGE : #/CMT# Provides a continuous discharge lamp operation even with changeover operations or with short time voltage lowering or voltage failure. With a failure in discharge lamp section, a certain safety process is put into operation ie after an operating disturbance in the discharge lamp circuit, at least one reserve illumination is ensured by a halogen bulb. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure 1 shows a circuit of the fail safe lamp over safety switch. 1 : Lamp circuit 2 : Safety switch 3 : Low voltage mains ZSV : Safety current supply ZSV : Emergency current set (9) Supply unit (12) Motor control for adjusting lamps or reflector positions.