Chemical composition of LEDs | Wavelengths (nm) | ||||
Manufacturer’s quoted valuesa | Experimental values | ||||
Mean wavelength | FWHM | Mean wavelength | FWHM | ||
GaP-GaP | 555 (Green) | 25 | 490 (Green) | 154 | |
GaAsP-GaP | 610 (Orange) | 35 | 492 (Yellow) | 150 | |
GaAlAs-GaAlAs | 660 (Red) | 25 | 687 (Orange) | 190 | |
GaAlAs-GaAs | 700 (Red) | 25 | 887 (Red) | 205 | |
GaAlAs-GaAlP | 880 (Near IR) | 80 | |||
GaAs-GaAs | 940 (IR) | 45 | |||