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  1. IgorT

    8X Diode Murder fund

    Ok, so as i already mentioned in the 12x Murder Thread, the current of the second 8x Murder Candidate (AKA LG 8x #1) was set to 348mA for the cyclng. The diode was plotted before that, and the power @ 348mA was 453,5mW with a fresh diode. I posted the Zero Hour plot a while ago. The plan was...
  2. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) I did, even tho it did not look like the window. It's not the window. The diode is badly degraded. I guess SOME low efficiency 12x's degrade like this. Seeing how fast the second 8x degraded at 348mA also reassures me a little in the thought that this is the...
  3. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) I'm going to sleep, so i won't be posting the full 8x Murder Candidate #2 re-plotting results tonight, but i did the test, and... The second 8x murder candidate degraded to 93% of it's initial power in 6 hours and 10 minutes. 3 more percent to go and it's where...
  4. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Yes, i may want to test the second 12x at a "lower" current. That's also another reason i want to pay for it with a laser of mine (i'll make myself another one anyway) - so i can decide on the current... We have already shown that 300mA is safe for some (or...
  5. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Well yea, i also regret not just leaving it alone, but i did a lot of thinking, and let's see what happened here. - The diode was tested, the PIV data posted. It did 550mW through the "Nichia lens" at 393mA as seen from the PIV plot as well. - The diode was...
  6. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) There are also some news about the second 8x diode. It seems to have degraded quite a bit (but at least the beam profile is still normal). It's been cycling away at 348mA for 6 hours, and a quick test showed the power a lot lower than the zero hour plot shows...
  7. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) It got changed, cos people expressed different wishes. 4 hours did not seem much in comparison to the 150h+ we got from the first 8x diode. I did not deem it important. (The chastising was done as that 8x neared 100h...) The reason i want to sell one of my...
  8. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) In theory, it could be that the 4h of 393mA did this. It's extremelly unlikelly one 420mA powerup would kill the diode. But if so, it would be quite scary. 12x's SHOULD survive more than 8x's, shouldn't they? 390mA was my halfway safe bet... But...
  9. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) I guess i should have been clearer before betting my life on anything. :yabbem: Obviously i meant at the very high currents around 400mA.... 305mA for a 12x is what i would consider extremelly safe. Normally i would recommend 400mW+ for 8x's and suggest a...
  10. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Hey there skewbasteve! If you can, would you contact me on Skype so we can arrange the details of the CR2 laser if you want it? Otherwise, drop me an email... I badly wanna do this experiment, but this diode is busted. It would probably keep running in the...
  11. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) There is one thing i didn't consider before. The diode ran for 4 hours and 11 minutes (ON-Time) at 393mA before i stopped it. I did not check the beam profile in between that and this just now. Like i said, the sensor would not detect a problem, and the...
  12. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) The lens is fine, it's the 408nm AR coated "Nichia lens" i got from my manufacturer and am using cos it measures same as 405-G-1. And yes, instead of the 590mW i predicted from the PIV plot it measured 363mW or so. For a moment it almost made sense in my...
  13. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Ok, horrible horrible news time. I just tested the 12x at 420mA. The pattern it produced on the wall was perfectly round and "splotchy". :undecided: It should not have been round through this lens, as for the patterns in it... They reminded me of something...
  14. IgorT

    Current for the 12x murder experiment.

    [About reaching 600mW with the test diode] Of course, and i realize that. However i also know, that 500mW+ is almost (if not completelly) exclusivelly reached only with the higher efficiency 8x's. The lower ones peak at 460mW at 360mA. Because of that, when we are testing if 8x's can...
  15. IgorT

    Dusty, can you please contact me on Skype for live text chat? Same goes for anyone else who...

    Dusty, can you please contact me on Skype for live text chat? Same goes for anyone else who wants to talk. Otherwise email is active again. P.S. Oh and the 8x's go out in an express package later this week, set up according to everyone's requests in the "Order Summaries"... Bump older email...
  16. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Actually i get the feeling i'm the only one obsessed with long life expectancy... :undecided: I want to run the test the way the people who donated for it wish to see it run.... Ok, you pushed it to 1W and it didn't pop. Now that's a good sign. One last...
  17. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) To be honest, that's a diode i've been looking at for a while, even with that price tag. I mean afterall, i paid more than that for this one green and i'm not even all that happy with it... It's single mode, 50mW CW and bluE, so imagine a blue PHR. At least...
  18. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) You guys do realize that this is a multimode diode, and that Nichia does not offer micro-FAC lens installation inside the can? It is possible to make a laser out of it, but there are numerous problems associated with making it work, even if FAC is solved. One...
  19. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) There is only one 12x, there is a second 8x tho, but that's the other part of the experiment...
  20. IgorT

    12x Murder Fund! + Graph!

    Re: 12x Murder Fund! (Complete!) Yes, this 12x is the lowest efficiency 12x i know of, altho i do only know of three. In all cases so far we tested the "low end" diodes. That's also why i don't want to push them to the maximum powers we see on the forum. Those powers are almost exclusivelly...


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