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ultraviolet lamp |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.12 sec. |
ultraviolet (UV) lamp, a lamp that emits electromagnetic radiation in a range between 4 and 400 nm, or beyond the violet spectrum of visible light. Equipped with a nickel oxide filter, an ultraviolet lamp radiating at wavelengths around 360 nm can be used to examine hairs infected with certain agents. The pathogens reflect the ultraviolet light with a greenish-yellow fluorescence. See also Wood's light. lamp an apparatus for furnishing heat or light. slit lamp one embodying a diaphragm containing a slit-like opening, by means of which a narrow, flat beam of intense light may be projected into the eye. It gives intense illumination so that microscopic study may be made of the conjunctiva, cornea, iris, lens and vitreous, the special feature being that it illuminates a section through the substance of these structures. ultraviolet lamp an electric light bulb that transmits ultraviolet rays; used as a therapeutic device. See also ultraviolet therapy. 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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