black light


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black light:

see ultraviolet radiationultraviolet radiation,
invisible electromagnetic radiation between visible violet light and X rays; it ranges in wavelength from about 400 to 4 nanometers and in frequency from about 1015 to 1017 hertz.
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black light

[′blak ‚līt]
(optics)
Invisible light, such as ultraviolet rays which fall on fluorescent materials and cause them to emit visible light.

black light

Invisible ultraviolet electromagnetic energy near the visible spectrum; useful for exciting fluorescent paints, dyes, etc., so that they become visible.
References in periodicals archive ?
For more information on the Indiglow LED black light fixtures, or any of the other lighting-edge technologies from USHIO America, visit www.
Shining the black light included with the piece on the page reveals the rest of the once-invisible text.
In the corner of the room, bracket fungi, painted with phosphorescent colors, radiated under the black light.
Every hotel across the world now should have a black light in there because you being the customer should have the right to turn off the lights and see the amount of body fluids that have been sprayed in your room.
I believe the black light night shooting can clear some of them up.
While playing the player learn about the features, facts and benefits that come with the Black Light collection.
However, when the paint is exposed to black light, the colors brightly appear and gain intensity.
A disappointing array of singles from Black Light showed the marked transformation of the duo, into a rockier, hard-hitting electro ensemble, but it was the 80's sound of I Won't Kneel which really was a return to form for Cato and Findlay.
Black Light suggests a reborn Armada, and Andy agrees.
A new 32-page catalog from Spectronics details a wide variety of black light (UV-A) and blue light inspection lamps that detect and identify surface and subsurface flaws.
On Sunday, October 11, the pair play Edinburgh's Corn Exchange as part of their Black Light tour - to promote their new album of the same name.
Those familiar with Kehincle Wiley's photorealistic style of painting will think the New York--based artist advanced his craft into high-definition for his first monograph, Black Light (powevHouse Books, $75).