| ultraviolet lamp n. A lamp, especially a mercury-vapor lamp, that produces ultraviolet rays. |
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 [lamp]
an apparatus for furnishing heat or light.
Gullstrand's slit lamp an apparatus for projecting a narrow flat beam of intense light into the eye. See also slit lamp.
slit lamp one embodying a diaphragm containing a slitlike 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.
Examiner using hand-held slit lamp. (Photography by Leslie MacKeen.) From Stein et al., 2000.
sun lamp (ultraviolet lamp) an electric light that transmits ultraviolet rays; used as a therapeutic device and as a means of obtaining an artificial suntan. See also ultraviolet therapy.
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.
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