For those who know about optoelectronics, can red LEDs emit infrared rays? Any LED has a spectral range. It does not mean that it cannot emit, but how much it occupies. Red LEDs can also emit blue l

For those who know about optoelectronics, can red LEDs emit infrared rays? Any LED has a spectral range. It does not mean that it cannot emit, but how much it occupies. Red LEDs can also emit blue light, but red light accounts for 99.9% and blue light accounts for 0.1%. If you need infrared light, you can use a dedicated infrared LED with a central wavelength of 850nm or 940nm, recommended by Taiwan Yiguang.