mercury-arc tube
21Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …
22Sodium vapor lamp — A sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure . Low pressure sodium Low pressure sodium (LPS) lamps, also known as sodium… …
23Rectifier — A rectifier is an electrical device that converts alternating current (AC) to direct current (DC), a process known as rectification. Rectifiers have many uses including as components of power supplies and as detectors of radio signals. Rectifiers …
24Headlamp — Headlight redirects here. For other uses, see Headlight (disambiguation). High Beams redirects here. For the urban legend also known by that name, see Killer in the backseat. A motor scooter s front with an impractical number and variety of… …
25High-intensity discharge lamp — A High intensity discharge (HID) lamp is a type of electrical lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina tube. This tube is filled… …
26lamp — lampless, adj. /lamp/, n. 1. any of various devices furnishing artificial light, as by electricity or gas. Cf. fluorescent lamp, incandescent lamp. 2. a container for an inflammable liquid, as oil, which is burned at a wick as a means of… …
27spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …
28Digital Light Processing — The DLP Logo Further information: History of display technology Digital Light Processing (DLP) is a trademark owned by Texas Instruments, representing a technology used in some TVs and video projectors. It was originally developed in 1987 by Dr.… …
29List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …
30Electronic component — Various components An electronic component is a basic electronic element and may be available in a discrete form having two or more electrical terminals (or leads). These are intended to be connected together, usually by soldering to a printed… …
