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BLUE LEDS

Photonics Spectra
Sep 2007
Cree Inc.Request Info
 
Cree-Inc.jpgCree Inc. has launched blue XLamp XR-E LEDs that are 70% brighter than its previous blue LEDs and that produce maximum luminous flux of 42 lm at 350 mA. The RoHS-compliant devices have an electrically neutral thermal path and a reflow-solderable design that is optimized for ease of use and thermal management. Typical thermal resistance from junction to solder point is 8 °C/W, temperature coefficient of voltage is –4 mV/°C, and viewing angle is 90° FWHM. Maximum DC forward current is 700 mA, and maximum reverse voltage is 5 V.


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GLOSSARY
luminous flux
Descriptive of the radiant power of visible light modified by the eye response. It is the measure of the flow of visible light energy past any given point in space in a given time period, and is defined as the amount of flux radiated by a source of 1 candela into a solid angle of 1 steradian.
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