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Chris's 9mm IR diode codes

jnrpop

jnrpop

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Ive got a few 9mm IR diodes from Chris Leunber (heruursciences) and they have codes on the back of them, ive done abit of reseaching but cant find anyone talking about them. Has anyone done any experimenting with them and possible have an idea about the codes?
Some are as follows: RL 505, LN 685, EH 156 , NF 768 , KY 721
Thats just a couple
Thanks
 





jnrpop said:
Ive got a few 9mm IR diodes from Chris Leunber (heruursciences) and they have codes on the back of them, ive done abit of reseaching but cant find anyone talking about them. Has anyone done any experimenting with them and possible have an idea about the codes?
Some are as follows: RL 505, LN 685, EH 156 , NF 768 , KY 721
Thats just a couple
Thanks
Click to expand...

Are you trying to figure out what the codes mean? Or just trying to figure out which type of diode you got (wavelength, power ect.)?
 
yes Wavelength and power! I just thought the code would give me a idea but it also might just be a product id code or manufactory line code.
 
jnrpop said:
yes Wavelength and power! I just thought the code would give me a idea but it also might just be a product id code or manufactory line code.
Click to expand...

I'll ask the Bob next time I see him online. I don't know if you can tell by those codes, I think you might have to put them under a microscope and examine the bond wires and such, then make a plot of current vs. power output. I honestly don't know much about it, but I'll ask and get back to you.
 
Thanks for yr help bryce, yer i think ill just run them on a LM317t, c where i get to!
 
Those codes don't look as diode codes ..... Chris got them from a bulk sell from a closed factory, so, they may be test codes, mean, codes related to the peoples that was working in that factory and made the production tests (like, i test a lot of diodes, and i mark them with my initials, followed with the number of the diode i'm testing, so when i write a test report, anyone can know about what diode i'm speaking) ..... and if so, is impossible to just associate diode values to codes, without these reports, sorry.
 
No worries yer thats what i thought, it would of been to easy otherwise! haha. Thanks guys!
 
Those are the initials of the QC technician that examined the diode at the factory, along with a serial number. At least that's what Chris says.
 
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