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Thread: Lpc826 - lpc 815 - phr803t - sfaw210 - ggwh20l - bdr-s06j

  1. #61
    Join Date
    Oct 2009
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    Eindhoven, The Netherlands
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    921

    Default

    I'm up for two LPC826's. I've got a few Aixiz mounts I want to fill

  2. #62
    Join Date
    Oct 2006
    Location
    Central Florida
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    7,067

    Thumbs up

    My 4 arrived today; thanks!

  3. #63
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,489,564

    Question Still available?

    Hey Laserwinkel;

    I've sent you two PM's in the past 10 days and have yet to get a reply from you. I'm interested in some of the LPC-826's if you have any left. Please reply with shipping costs to the US (postal code 29418). Thanks.

    Adam

  4. #64
    Join Date
    Apr 2011
    Posts
    3

    Default same question

    I have sent pm few weeks ago , but there is not answer
    What's price of one lpc826 shipped in country Georgia?an is it stil available?

  5. #65
    Join Date
    Oct 2009
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    Eindhoven, The Netherlands
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    Quote Originally Posted by rhd View Post
    And his figure for 600mA with a red lens was ~350mw. If I've come within 15mW of that with a LOC, I'd say these may have the exact same capabilities.
    Has anyone tested the robustness of the LPC826's yet? There may have been some improvements there making them a little harder to kill.

    If they turn out to be anywhere near as indestructible as the 445nm diodes, I'm pretty happy with it.

  6. #66
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    Jun 2010
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    Australia
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    Quote Originally Posted by Stoney3K View Post
    Has anyone tested the robustness of the LPC826's yet? There may have been some improvements there making them a little harder to kill.

    If they turn out to be anywhere near as indestructible as the 445nm diodes, I'm pretty happy with it.
    I have had one running for over 24 hours now @ 550mA, cooled to 20c. So far so good.
    This space for rent.

  7. #67
    Join Date
    Jun 2007
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    Lake Geneva, WI.
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    Quote Originally Posted by dnar View Post
    I have had one running for over 24 hours now @ 550mA, cooled to 20c. So far so good.
    Please Keep us posted... What's the output at 550mA?

  8. #68
    Join Date
    Jun 2010
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    Australia
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    Quote Originally Posted by 300EVIL View Post
    Please Keep us posted... What's the output at 550mA?
    With an Axiz 660nm AR lens, 267mW @550mA. - EDIT: My LPM batteries went flat, this reading is not accurate, see later post with graph.

    I have another 7 LPC-826 diodes here, I will batch test them all over this Easter weekend. Tonight I will be pulling my quad apart for a more compact rebuild, so will test 815 and 826 side by side with a Flexmod P3 on each. I'll establish lasing threshold and will also plot power vs current for both on the one graph.
    Last edited by dnar; 04-21-2011 at 01:26. Reason: Fixed readings - flat battery in LPM
    This space for rent.

  9. #69
    Join Date
    Jun 2010
    Location
    Zweibrücken, Germany
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    Well I just randomly pulled an 815 and an 826 out of my supply and sent both thru a kill test. Simple hookup at an ambient of 24C° passive heat sinking with Dave’s mounts measuring raw power while upping the power to the kill point. Unfortunately I can’t plot current and power at the same time.

    As in previous tests the 826 died at exactly 650mA outputting 440mW (see chart).

    Now here it comes, the 815 diode doesn’t want to die (see chart). It peaked out at 870mA outputting 503mW. Further current increase (up to 1000mA) resulted in continuous power drop. I turned the power down and ramped up again with the same results. I let the diode live due to extraordinary performance. This behavior has been observed with the 822 diode but with not near the power output.

    I suspect there may even be differences in diodes used in the 815 sleds, there are also 2 different diode mounts used in these sleds.


    Attached Thumbnails Attached Thumbnails 815 LOC diodes.jpg  

    658nm LPC826 diode dies @ 650mA_ 440mW.pdf  

    658nm LPC815 Laser diode RAW Power (mW).pdf  

    Last edited by Solarfire; 04-21-2011 at 01:43.

  10. #70
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    Jun 2010
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    Australia
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    Ok, I have now compared LPC-815 with LPC-826 with the following setup:

    Dave's Brass LD mounts on a 3x4" aluminum base.
    Axiz 660nm AR glass lens.
    Flexmod P3 driver.
    GW Instek GDM-8245 50000 count 0.03% accuracy bench DMM.
    Radiant Alpha LPM.

    The slope is steeper, and the output continues to climb after the LPC-815 drops off.
    Attached Thumbnails Attached Thumbnails LPC815-826 Comparo.pdf  

    Last edited by dnar; 04-21-2011 at 02:06.
    This space for rent.

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