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Thread: DIY Diode housings

  1. #51
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    Quote Originally Posted by Laserman532 View Post
    and no puddles of molten aluminum................yet

    see two sizes....no molten aluminum...............

    Haha that would be a very bad thing :P, aluminium melts at about 700 degrees right? Hmm..... diodes that operate at 700 degrees
    Life is short.... Ride it hard!!

  2. #52
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    Quote Originally Posted by drlava View Post
    "you are unable to view this portion of the site because your browser will not accept cookies from nexternal"

    hmm?
    Works fine on the work PC. See attached...
    Attached Thumbnails Attached Thumbnails 38375-HeatSink-1-350.jpg  


  3. #53
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    Will they ever learn
    The fins are positioned in a way that prevents convection from taking away the heat

  4. #54
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    I bought 2 of those and chopped them in half for the "buy one, get one free" effect:
    Please also note that the z-bolt website was not as secure as I would have liked (no little lock symbol, maybe not even https if I remember right).
    I sent them an email and had them generate a paypal request for me.
    -Mike


  5. #55
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    This how they are sitting in my projector:


    I didn't know that i would start such a big conversation buy writing "The whole block needs to heat up before ..."

  6. #56
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    really sorry to bump up my old thread again, but I have such a small question that I don't want to open up a new thread for it... So I have been playing with red diodes and up till now, none of them have survived for more than a week or so... I am convinced that this is not due to overheating or overpowering because I have monitored the temperature (with my fingers ) and the current and they have always been safe....

    Up till now I have always been using the aixiz acrylic lens and I think that the back reflection is killing my diodes. So will a normal glass lens from aixiz (like this one) save my diodes? Or will I have to get one of those new AR coated ones?
    Life is short.... Ride it hard!!

  7. #57
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    Quote Originally Posted by Frixxion View Post
    Up till now I have always been using the aixiz acrylic lens and I think that the back reflection is killing my diodes. So will a normal glass lens from aixiz (like this one) save my diodes? Or will I have to get one of those new AR coated ones?
    Hi Jordy,

    are you using the 20x dvd (aka long die open can) burner diodes? How far do you push them?
    I'm running mine at 500mA (at 5V modulation), with a glass lens.. and it's still working after half a year and a couple of shows. It was in one of my projectors i brought at the Haar-lem
    I do think the power has fallen down from 300mW to 200-ish.. but.. at least it is working

  8. #58
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    Quote Originally Posted by Frixxion View Post
    really sorry to bump up my old thread again, but I have such a small question that I don't want to open up a new thread for it... So I have been playing with red diodes and up till now, none of them have survived for more than a week or so... I am convinced that this is not due to overheating or overpowering because I have monitored the temperature (with my fingers ) and the current and they have always been safe....

    Up till now I have always been using the aixiz acrylic lens and I think that the back reflection is killing my diodes. So will a normal glass lens from aixiz (like this one) save my diodes? Or will I have to get one of those new AR coated ones?
    What drivers are you using?

    --DDL
    I suffer from the Dunning–Kruger effect... daily.

  9. #59
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    Quote Originally Posted by Frixxion View Post
    really sorry to bump up my old thread again, but I have such a small question that I don't want to open up a new thread for it... So I have been playing with red diodes and up till now, none of them have survived for more than a week or so... I am convinced that this is not due to overheating or overpowering because I have monitored the temperature (with my fingers ) and the current and they have always been safe....

    Up till now I have always been using the aixiz acrylic lens and I think that the back reflection is killing my diodes. So will a normal glass lens from aixiz (like this one) save my diodes? Or will I have to get one of those new AR coated ones?
    Which diodes are you using and at what current are you running them? Look at the lenses closely with a bright flashlight and see if you see a bright speck in the center of the lens. It is possible for the lens to have a small melt point in some situations, I have seen them.

  10. #60
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    Up till now I have killed 3 rohm diodes and one red diode from a 6x bluray pickup.. I think I ran those Rohms at about 150 mA. But I even lost one at a much lower amperage (something like 100mA). I don't remember how many amps I put the diode from the 6x pickup through .

    I am using the Stan_Ham driver I bought from Anthony.

    I'll check for a smelt point tonight !
    Life is short.... Ride it hard!!

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