LED cabin/reading lights and ultra violet light

[ianabc]

I am wondering if anyone had technical details of uv radiation from the commonly available led bulbs as used in cabin lamps?

 

[tangofour]

0 UV emmision.

UV C is < 280nm ( nanometres )
UV B at 280 to 320
UV A at 320 - 400 nm

Most white LED's have barely any output below 425 nm with the first peak at 465 nm, a dip at 500nm, and a broad peak at 525 to 625 nm.

The interesting thing about 'white' LEDs is that they are actually blue electronic devices doped with organic compounds that fluoresce under the influence of the blue light.

So called 'warm white' LEDS coat the blue emmitter in 'quantum dots' ( nanostructures ) that give off the brown/yellow hue familiar in incandescent bulbs.

Fascinating technology!

Typical spectrum can be seen at http://www.lumileds.com/pdfs/DS51.pdf
and
http://en.wikipedia.org/wiki/Light-emitting_diode