Chapter 9 The High Pressure Sodium Lamp

Written for designers, engineers, architects and others involved with application of modern lamps and lighting systems, this book provides a comprehensive accounting of current lamp technologies, covering both the fundamental technologies on which they are based and trends in their use, both historical and current. You’ll learn about how recent innovations such as those involving LEDs, electrodeless lamps, ballasts and circuitry are continuing to improve lamp efficacy, as well as how specialized lamp requirements have fostered development of special-purpose lighting, such as for non-visual, for health, and for high performance applications. The full spectrum of current lamp technologies are examined in clear, non-technical language with ample illustration.