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Taking the UV LED Cure

Posted July 11, 2014 12:00 AM by Engineering360 eNewsletter

Until recently, mercury vapor lamps have been the only light source for UV polymerizing of adhesives. LEDs, however, are on their way to becoming the technology of choice for that application. Unlike mercury vapor lamps, LEDs emit a narrow spectrum of energy at specific wavelengths, increasing their usable energy and efficiency. In addition, the ability to turn LEDs on and off rapidly and to precisely and continuously control their output levels makes them more useful in manufacturing applications. Chemical formulators, responding to this trend, are developing adhesive products specifically tailored to UV light.

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Rorschach Guru Join Date: Jan 2008 Location: Spring, Texas Posts: 3403 Good Answers: 150	#1 Re: Taking the UV LED Cure 07/16/2014 11:16 AM
	actually not qute true of the blue/white spectrum LED's. while it is true that the LED itself emits a specific wavelength, most blue and white leds use a flourescent phosphor loaded plastic encapsulant to change the near UV output from the Silicon Carbide chip into blue/white/tricolor light, much the way flourescent tubes do. __________________ Who is John Galt?
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