strassenleuchte for a lamp with ellipsoidkolben, preferably a high pressure sodium lamp with fluorescent quecksilberdampf

摘要

The lighting fitting for street lights is suspended between carriageways. The arrangement has a reflector for directing light from the bulb against travelling direction on both roads. The reflector is of simple design and readily adapted to suit road surface. The lamp with ellipsoidal bulb and with fluorescent coating is arranged on the main plane of symmetry a, a. The curved reflector shells are joined at a definite small angle at joint (14). These shells project light in opposite directions on two roads at an acute angle with the road longitudinal axis.