LED Optical Properties

Date:Mar 17, 2019

The LED provides a monochromatic light with a large half width, and as the energy gap of the semiconductor decreases with the increase of temperature, the peak wavelength it emits increases with the increase of temperature, that is, the spectral redshift and the temperature coefficient is +2~3A/. The LED luminous brightness L is approximately proportional to the forward current: K is the proportional coefficient. With the increase of current, the luminous brightness also increases approximately. In addition, the luminous brightness is also related to the ambient temperature, when the ambient temperature is high, the compound efficiency decreases and the luminous intensity decreases.

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