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FrozenGate by Avery

505nm and 480nm diode RESULTS

  • Thread starter Thread starter Deleted member 16589
  • Start date Start date
At 250 mA I got 120 mW. It makes a pretty nice blue beam in the dark. No trace of violet at all. What do you think? Stop here? If so I will set it up to take a spectrometer reading.
 





And this is why I bought 10 of them. I'm hoping for one or two I can get to 483-484nm. All others I am OK with selling off... most are spoken for. Depends on the results on the rest of the diodes actually. For those who haven't already had one in this wavelength range, it has to be nice as hell. But I'm picky since I already have a 488 and had a 480. I want something in the middle...

Edit:
Go for more, try 275. Efficiency isn't dropping yet

Edit 2: just added you on skype if that helps speed things up Edit 3: Scratch skype, microphone is dead and I'm away from home on a business trip
 
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And that to me is a stopping point. I'm kinda amazed that we can push these to twice the current without them giving out. Can you test the wavelength at 250 and 280mA?
 
Okay, so the wavelength is the same. Actually it was 477.5 last time I check it before and I rounded it up to 478. But, it is flat at 477.5 at 280 mA. Now this is just for that one diode. There are more to test, but the ones you don't want pressed will only be tested up to maybe 130 mA as there is no good way for me to heat sink it properly.
 
Ah ok. Well that's more of a jump than I anticipated, so I'm pretty happy with the results for that.

Lemme know when you get the rest of the diodes WL tested for normal operation!

After you get those done, could you also push the highest one to 210mA and get its wavelength?

(And thank you so much for testing all these to my every whim)
 
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On these diodes I was going to suggest the 250 mA be the highest they be pushed to. Might even be better to limit it to 230 mA for longer life. It will take me a few days to do all of these diodes. Are you saying that you don't want anymore pushed past 210 mA? There is no way of knowing which diodes will be the highest in WL as some are bare and I can't push them very hard at all. So, it will be the luck of the draw which, if any, will make it to 480nm. I don't see a good reason to push the 505nm diodes as they will probably only increase in WL. Unless you want to know how hard they can be pushed to know the highest power you might get out of one.
 
Nah don't bother pushing the 505s from me.

The should be a few 478's at 130mA. Should be from the fedex package, the ones paired with the 505s. I bought those binned from the supplier as they had a small enough sample to test them.

What current can you test the bare diodes at comfortably?
 
paul1598419 said:
On these diodes I was going to suggest the 250 mA be the highest they be pushed to. Might even be better to limit it to 230 mA for longer life. It will take me a few days to do all of these diodes. Are you saying that you don't want anymore pushed past 210 mA? There is no way of knowing which diodes will be the highest in WL as some are bare and I can't push them very hard at all. So, it will be the luck of the draw which, if any, will make it to 480nm. I don't see a good reason to push the 505nm diodes as they will probably only increase in WL. Unless you want to know how hard they can be pushed to know the highest power you might get out of one.
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I'd like to see mine pushed to 210mA but would have to have Zraffleticket confirm which one it is first. Would be nice to know what it hits for when I throw it into a pen build and fire up my 473nm labby next to it.
 
ZRaffleticket said:
Nah don't bother pushing the 505s from me.

The should be a few 478's at 130mA. Should be from the fedex package, the ones paired with the 505s. I bought those binned from the supplier as they had a small enough sample to test them.

What current can you test the bare diodes at comfortably?
Click to expand...

I'm not sure yet as I haven't figured out how I'm going to heat sink them without being pressed. I know I can get them to 75 mA without any heat sinking as I already tried that.

Edit: Actually since I got the diode Rich sent me I also have a data sheet on the 505nm too.
 
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Ah I see. Does lazerman know how his diodes were tested by junktronix? I'm pretty sure his are all not pressed.

And yeah cynical, I'll let you and my other buyers know who gets what when the results are in

Edit: I'm looking at a 12 hour day tomorrow and then again Friday, gotta love work trips. LPF access is limited but I'll see what I can do.

If you can Paul, press what 480's you can - preferably from the fedex batch first. The 505s are more of a backburner for me, I can press those on my own (I have two or three copper heatsinks at home).
 
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505nm test uploading and very interesting. Was going to do the 470nm diode first but blew it up due to hot dog fingers.:oops: That is why you don't use variable power supplies as a every day diode driver but it does make a great visual representation for testing. I will have to mount p a new one and start over on it but hope it is like the 505nm. Back in a few.:beer:
 
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DTR said:
505nm test uploading and very interesting. Was going to do the 470nm diode first but blew it up due to hot dog fingers.:oops: That is why you don't use variable power supplies as a every day diode driver but it does make a great visual representation for testing. I will have to mount p a new one and start over on it but hope it is like the 505nm. Back in a few.:beer:
Click to expand...

Well, looks like jordan was the first to kill a 470-480 diode :crackup:
 
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