Question

Please describe the mechanism and significance of blue LEDs

Answer 1

Fluorescent materials emit light of a specific wavelength after they are illuminated with light of a different wavelength.

The fluorescent material used to make a white LED emits various colors of light when it is illuminated with blue light from the blue LED.

White light is produced when the blue light from the LED combines with the other colors of light emitted from the fluorescent material.

Blue light has a very short wavelength, and so produces a higher amount of energy.

A blue LED is an efficient way to generate blue light.

They're often used for indicator lights in consumer electronic devices, forklift LED, strobe lights, alarms, and backup cameras, along with many others