Title :
High pressure mercury vapour lamps
Author :
ter Vrugt, J.W. ; Verwimp, J.K.P.
Author_Institution :
N.V. Philips´ Gloeilampenfabrieken, Lighting Division, Eindhoven, Netherlands
fDate :
4/1/1980 12:00:00 AM
Abstract :
Among the light sources in use for general lighting, high pressure mercury vapour (h.p.m.v.) lamps with lamp ratings from 50 to 2000W play an important role in outdoor lighting. During the last 15 years the luminous efficacy and the colour appearance of these mercury vapour lamps have been much improved by the application of europium-activated phosphors. Recent modifications of these phosphors have resulted in better lamp efficacy, and warmer lamp colour. Thus the application of deluxe h.p. m.v. lamps for certain indoor lighting projects has taken place.
Keywords :
lighting; mercury vapour lamps; Eu-activated phosphors; high pressure Hg vapour lamps; indoor lighting; lamp colour; luminous efficacy; outdoor lighting;
Journal_Title :
Physical Science, Measurement and Instrumentation, Management and Education - Reviews, IEE Proceedings A
DOI :
10.1049/ip-a-1.1980.0028
