Correspondence: The resurrecrion of incandescent lamps

Abstract

In order to expand the market for energy saving lamps, good old conventional incandescent lamps had to be phased out. Recent news regarding the construction of a new, energy efficient incandescent light source was welcomed by many. The development is focused on energy efficiency, but it is extremely important not to neglect issues such as: spectral power distribution, colour rendering, warm-up time, lamp life and glare. If all of the important issues are resolved with the lamp luminous efficacy not significantly deviating from that of CFLs and LEDs used in interior lighting, the resurrection of incandescent lamps will be welcomed, provided that the light source price is acceptable.