LED source

Chris Jeffree CJEFFREE at srv0.bio.ed.ac.uk
Tue Nov 12 10:02:20 EST 1996


The brightest "ultrabright" LEDs I know about are as follows:

RED: Newark Electronics,  tel #44 1 420 543500, Device code AND130CR, 
output 8 candelas  
GREEN: M.I.CABLES, #44 1 463 717448/9. contact Fraser Wilson.
 Device code 110104, output 6 candelas (~stlg. 19.00 each)
GREEN: MARL International Ltd, Tel #44 1 229 582430 
UK Sales Manage David Moorhouse, Device code 110104, output 
3.0-6.0candelas, 525nm, 15degrees viewing angle 
BLUE: MARL International, Device code NLP1000, output 600+mcd

As far as I am aware, these are the brightest LED devices currently 
available (If anyone knows of brighter I would be most grateful for 
information about sources). If you need even more forward intensity a laser 
diode might be worth investigating.

Don't know how these intensities relate to your moles - insufficient 
information is provided (moles per what illuminated area per what time, at what 
distance from source?).
One candela = 1/683 watts per steradian at lambda =  540x10^12 Hz  

Chris Jeffree




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