About LED Light Spectrum
LED Spectrum is based on my doctoral research work on Monte Carlo analysis of light in compound semiconductor. In the input area, the user defines up to 3 light sources and up to 3 encapsulations, where each encapsulation...
LED Spectrum is based on my doctoral research work on Monte Carlo analysis of light in compound semiconductor. In the input area, the user defines up to 3 light sources and up to 3 encapsulations, where each encapsulation can have 3 converters. Using the Monte Carlo method, several thousand photons are simulated which may be transmitted, or absorbed & re-emitted in a longer wavelength, or simply lost based on the conditions specified by the user. The normalized output spectrum is displayed which is the sum of all the photons. Please see the sample deck below:
# lines starting with # are comments
# the first line has to say "LED Spectrum"
LED Spectrum
# the line starting with T tells the program the # of sources (max 3), # of encapsulations (max 3), # of samples (max 75000)
T, 3, 3, 75000
# source come first, format is S, mean wavelength (nm), variation (3 sigma) (nm), amplitude fraction (integer %), the sum of amplitude fractions == 100 %
S, 475, 25, 45
S, 540, 30, 30
S, 680, 35, 25
# encapsulation is next, format is E, number of converters (max 3), loss (integer %) at 300nm, loss (integer %) at 550nm, loss (integer %) at 800nm,
E, 3, 20, 30, 20
# converters come after the encapsulation they are in, format is C, absorption wavelength (nm), absorption probability (integer %), emission wavelength (nm), converter volume fraction (integer %), the sum of converter volume fraction # converters are given gaussian +/- 5% variation in emission wavelength to avoid spikes in the output
C, 550, 50, 720, 35
C, 550, 50, 660, 30
C, 550, 50, 600, 30
# another encapsulation and its converters
E, 3, 10, 20, 30
C, 500, 50, 580, 25
C, 550, 50, 620, 25
C, 490, 50, 560, 40
# another encapsulation and its converters
E, 3, 20, 10, 5
C, 500, 50, 510, 30
C, 500, 50, 525, 30
C, 550, 50, 640, 30
Previous Versions
Here you can find the changelog of LED Light Spectrum since it was posted on our website on 2021-05-20 13:09:58.
The latest version is 1.0 and it was updated on 2024-04-22 09:51:42. See below the changes in each version.
LED Light Spectrum version 1.0
Updated At: 2021-05-02
Changes: Production
Disclaimer
Official Google Play Link
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