Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: 405nm bluray diode macros

  1. #1
    Join Date
    Nov 2007
    Location
    Emmaus, PA
    Posts
    207

    Default 405nm bluray diode macros

    My bluray recently died from unknown causes so I took the diode below the threshold (still lases at about 1mW) and took these pics, I thought they were pretty interesting





  2. #2
    Join Date
    Jan 2007
    Posts
    163

    Default

    what driver were you using for the diode?

    I have found that my diodes do not have a good life span if the DC supply is not very, very smooth and if the current regulator is not of a top notch quality. Having said that, cooling would be the second item of importance

    w.

  3. #3
    Join Date
    Jan 2007
    Location
    Sheepsville, Wales, UK
    Posts
    3,372

    Default

    When I killed my first one I ripped the can off and took some much closer close ups
    They are in my gallery but thats broken at the moment so here are 3 of my images
    Attached Thumbnails Attached Thumbnails bluray027.jpg  

    bluray023.jpg  

    bluray026.jpg  

    If you need to ask the question 'whats so good about a laser' - you won't understand the answer.
    -----------------------------------------------------------------------------------------------
    Laserists do it by the nanometre.

    Stanwax Laser is a Corporate Member of Ilda

    Stanwax Laser main distributor of First Contact in UK - like us on Facebook http://www.facebook.com/FirstContactPolymerCleaner
    www.photoniccleaning.co.uk

  4. #4
    Join Date
    Aug 2007
    Location
    Ottawa, Canada
    Posts
    2

    Default

    Great photos! Well done!

  5. #5
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Question

    Quote Originally Posted by chimo View Post
    Great photos! Well done!
    Ditto Rob. How do you get them big pics of such small objects?
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  6. #6
    Join Date
    Dec 2007
    Location
    Stockholm, Sweden
    Posts
    515

    Default

    That last one has a real sci-fi vibe to it!

  7. #7
    Join Date
    Jan 2007
    Location
    Sheepsville, Wales, UK
    Posts
    3,372

    Default

    I took them with a standard lens on my camera that goes in close anyway but onto the front of this I stuck an old lens from a video camera that I use as a magnifying class normally. It made a great macro lens combination.
    When the gallery returns you will see I have marked one image up to show the connections and internal components and where the 3 lasers are sited on top of each other

    Rob
    If you need to ask the question 'whats so good about a laser' - you won't understand the answer.
    -----------------------------------------------------------------------------------------------
    Laserists do it by the nanometre.

    Stanwax Laser is a Corporate Member of Ilda

    Stanwax Laser main distributor of First Contact in UK - like us on Facebook http://www.facebook.com/FirstContactPolymerCleaner
    www.photoniccleaning.co.uk

  8. #8
    Join Date
    Dec 2006
    Location
    Netherlands
    Posts
    964

    Default

    Great pics Rob. Do you know how this one died?
    I'm looking forward to receiving my order of 405nm diodes.

  9. #9
    Join Date
    Apr 2006
    Location
    Miami, FL
    Posts
    3,580

    Default

    ive built two lasers around these 405nm diodes... and they do that exact same thing to me... they work fine for a while, then the next day i try to use it again and bam, tiny output...

    im using a power supply i got from meredith (LDD-10)

    i eventually just gave up... dont feel like wasting another $40 on a 3rd try :\

  10. #10
    Join Date
    Dec 2007
    Location
    Stockholm, Sweden
    Posts
    515

    Default

    Strange, what driver do you use and at what current do you drive them?
    I use a d4drive and Robin was kind enough to suggest a few modifications since the BR-diodes are so sensitive to power supply fluctuations.

    Do you use a powersupply to drive the LDD-10? If so, maybe your powersupply has a turn on or off transient that you are not aware of? It is very easy to spot with a oscilloscope.
    Bulild a LM317 linear regulated supply and put that before the driver if you suspect that doesn't behave as it should, look in the LM317 datasheet for schematic.
    If you use a battery I have no idea what might be going on.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •