UV LEDs

Thread Starter

FingerPrint

Joined Jul 24, 2008
21
I'm looking into making a circuit of ultraviolet LEDs for detecting forged bank notes. Some sites say they are not suitable because of wave length and some say they are OK. What are your thoughts on this and is there any detriment to health and safety.

Bob
 

iamspook

Joined Aug 6, 2008
27
Are you hoping to make something in the notes fluoresce? If so then the wavelength might be more critical. If you are also building a detector that can "see" what's reflected in UV, then surely it's not so critical.
 

Thread Starter

FingerPrint

Joined Jul 24, 2008
21
Just checked on the bank of England web site. I need a wave length of 365 nanometres. There is a £20 mark in the left hand corner.
 
Top