Led Shift Light LED Wavelength Shift Problem?
LED wavelength shift problem? - led shift light
Hello
There was something strange in my experience was yesterday.
I have 10 mA, 20 mA and 30 mA until the green light from the LED drive, the wavelength of 525nm, 521nm and 519nm.
The question is what causes the shorter wavelength when the current is higher?
I know that the temperature affects the wavelength, the higher band gap temperature below room temperature, would be the lower band gap wavelengths longer. The other thing is that the TEMP LED is when the current increases, which will make more than the short wavelength.
So I want to know a plausible explanation for the results of my experiments.
Thanks
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1 comments:
Speed = frequency x wavelength
The shaft of light is constant, and the shorter the wavelength, the frequency is higher.
If the latest offer, offer more power for the LED and the light produced by LEDs has more energy.
According to the rules of quantum mechanics,
Energy carried by an electromagnetic wave (E) = HXF
H - plate constant
f - Frequency
Thus, if the energy of an electromagnetic wave increases, the frequency higher. The waves of higher frequency waves carry more energy than at low frequencies. For example, and the gamma-ray energy is higher than visible light, because their frequency is very high. Therefore, the gamma rays can thicker objects and visible light can not penetrate.
This happened in the experiment.
Power supplies more> The light energy is generated by the LED more> frequency of the wave is more> wavelengths shorter wavelength
The same happens when the light is warmer. If you have a DeviEC wavelength to detect the heat (or infrared), you will notice that the temperature rises, shortening the wavelength of infrared radiation.
In any case, good luck in their experimental work.
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