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electric discharge lamp |
Also found in: Wikipedia | 0.04 sec. |
electric discharge lampor vapor lampLighting device consisting of a transparent container within which a gas is energized by an applied voltage and made to glow. After practical generators were devised in the 19th century, many experimenters applied electric power to tubes of gas. From c. 1900, electric discharge lamps were in use in Europe and the U.S. Fluorescent, neon, mercury, sodium, and metal-halide lamps are of the electric discharge variety. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Like rats and cockroaches, criminals shy away from light, so Twynstra mounted a sodium vapor lamp at each peak of the building's roof and along the front side of the shop, which faces the road. On a warm summer night it would be pleasant to stargaze from one's back yard and not be blinded by the visually polluting, intense electromagnetic emission of thousands of low-pressure sodium vapor lamps randomly spaced throughout the city. Due to the new Federal EPA regulations on fluorescent and mercury vapor lamps, which went into effect on January 6th, 2000, most non-residential facilities are now required to properly dispose of their lamps. |
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