For white light, however, two or more wavelengths are required to generate a broad spectrum of light ... instead a short-wavelength ultraviolet, violet or blue LED is required.

Sunblock Effectiveness Systems test a substance's effectiveness at blocking sunlight or UV rays. Solar Simulators and Light Sources Solar simulators and light sources produce a simulated solar ...

Fore: LED-UV curing systems use solid-state electronics, in this case light-emitting diodes or “dies,” to emit energy within the UV spectrum. Traditional arc UV, however, uses high amounts of ...