Recent content by LarsB

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  1. L

    Where can I buy Cree XT-E royal blue LEDs, preferably XTEARY-00-0000-000000N04?

    P.S.: You can also share (or ask) everything related to fluorescence diving and underwater fluorescence in this Facebook group and Google+ community.
  2. L

    Where can I buy Cree XT-E royal blue LEDs, preferably XTEARY-00-0000-000000N04?

    If you can still find them (try e.g. www.mouser.com), the blue SST-90 from Luminus are an excellent choice (but unfortunately discontinued by the manufacturer)!
  3. L

    Where can I buy Cree XT-E royal blue LEDs, preferably XTEARY-00-0000-000000N04?

    460 nm is just fine for "normal" purposes of observing fluorescence under water. Actually I use LEDs of roughly 450-470 nm. The "trick" or trade secret lies in the use of the right excitation filter (a dichroic filter, for greater precision), which "trims" the spectrum (= distribution of...
  4. L

    Where can I buy Cree XT-E royal blue LEDs, preferably XTEARY-00-0000-000000N04?

    Even more great info about underwater fluorescence and fluorescence diving can be found here: http://www.fluomedia.org/science/ http://www.fluopedia.org/publications/
  5. L

    Magic fluorescence in night dives with HiTecLEDs

    Even more great info about underwater fluorescence and fluorescence diving can be found here: http://www.fluomedia.org/science/ http://www.fluopedia.org/publications/
  6. L

    Source for nichia NCSU033B uv led?

    BTW, everything you ever wanted to know about underwater fluorescence explained: On The Rise: Fluorescence Night Dives - Background, Basics and Techniques Even more great info about underwater fluorescence and fluorescence diving can be found here: http://www.fluomedia.org/science/...
  7. L

    Magic fluorescence in night dives with HiTecLEDs

    BTW, everything you ever wanted to know about underwater fluorescence explained: On The Rise: Fluorescence Night Dives - Background, Basics and Techniques
  8. L

    Nichia 365nm UV Light offerings (NEW 5-12-17)

    Re: Nichia 365nm Light offerings Even more great info about underwater fluorescence and fluorescence diving can be found here: http://www.fluomedia.org/science/ http://www.fluopedia.org/publications/
  9. L

    Dive lamp project for underwater bio-fluorescence

    BTW, everything you ever wanted to know about underwater fluorescence explained: On The Rise: Fluorescence Night Dives - Background, Basics and Techniques See also FluoMedia.org: Science for more technical and practical information and FluoPedia.org: Publications for more articles.
  10. L

    Nichia 365nm UV Light offerings (NEW 5-12-17)

    Re: Nichia 365nm Light offerings How about this one? http://www.firedivegear.com/products/bargains/#ukc4led I'm giving it away for half my net cost.
  11. L

    "Fat Star" Octa 8x SST-90 Colossus Led Flashlight @ 18.000 lumens -more beamshots-

    Re: "Fat Star" Octa 8x SST-90 Colossus Led Flashlight @ 18.000 lumens -more beamshots Hi Steffen, the problem is that only very few bins will actually make it to the consumer market level and will be sold as retail. The vast majority of bins will only be sold in huge quantities to enterprises...
  12. L

    "Fat Star" Octa 8x SST-90 Colossus Led Flashlight @ 18.000 lumens -more beamshots-

    Re: "Fat Star" Octa 8x SST-90 Colossus Led Flashlight @ 18.000 lumens -more beamshots Does this bin exist at all?!? I can't find it in the specs: http://www.luminus.com/products/Luminus_SST90_BinningLabeling.pdf (Via http://www.luminus.com/products/white.html) Otherwise, have you tried...
  13. L

    Nichia 365nm UV Light offerings (NEW 5-12-17)

    Re: Nichia 365nm Light offerings Hi Don! The latter is exactly what happens in the image above with the red anemone; the ambient light is a full spectrum source of light missing red at that depth under water. It's all clear now! :-) This is exactly what we do with our blue lights. Water is...
  14. L

    Nichia 365nm UV Light offerings (NEW 5-12-17)

    Re: Nichia 365nm Light offerings Hi Don, thanks for letting me know! :-) Actually I'm not, our contact has been very brief, and I've only found some of their works accidentally by googling around for pages related to underwater fluorescence. :-)
  15. L

    Nichia 365nm UV Light offerings (NEW 5-12-17)

    Re: Nichia 365nm Light offerings Hi Don! And doesn't it make you long for more? :-) I don't believe a word about your poor memory! :-) So much for your bad memory! :-) As far as I know (but I'm not an expert), both the symbiotic algae and the corals themselves contain fluorescing proteins...
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