High-intensity Discharge Lamps: A Review
Résumé
This paper presents the basic science and the operating principles of a high intensity discharge (HID) lamp. The focus is on HID lamps that are used to emulate white light or daylight conditions. A review of the electrical requirements for operating a HID lamp is provided, and the class of ballasts that can be used to such end. An HID lamp requires an igniter to start the lamp and a power source to sustain the electrical discharge; this source should be designed to avoid acoustic resonances.