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Thread: Meet "Big Red"

  1. #1
    Join Date
    Feb 2007
    Location
    Herts, UK
    Posts
    1,253

    Default Meet "Big Red"

    Well, after months of work, several prototypes and a near divorce experience I have finally half finished "Big Red". Now he's looking presentable I have persuaded him to model for a couple of pics.

    He is currently sporting 8 Opnext HL6545MG diodes running at 230mA per diode and at 5.04v produces 1300mW with a 3mm beam and under 1.6mrad divergence, and he loves Robin Bowden's Die4Drive drivers (thanks for all your help Robin )
    He is only half finished. Opposite his current array he'll be getting another 8 diodes and will end up pushing almost double that out of the business end. More pictures to follow as he evolves.

    Beam spot pic @ 27m:



    Inside:








  2. #2
    Join Date
    Jan 2007
    Location
    Cupertino, California
    Posts
    2,130

    Default

    Holy fuck! That shouldn't be legal! I want one.... :0
    CLICKY!!!

    Admin: In the immortal words of Captain Planet: YOU HAVE THE POWER
    Admin: (To quit being a bitch)

  3. #3
    Join Date
    Jan 2007
    Location
    Yorkshire, UK
    Posts
    4,564

    Default

    Hell Simon!!, that is NICE

    The beam quality looks good too, almost gaussian. Can't wait to see the 2.6Watt version

    Are you taking orders yet?

    Cheers

    Jem

  4. #4
    Join Date
    Dec 2006
    Location
    Essex, UK
    Posts
    8,594

    Default

    very nice mate .
    Eat Sleep Lase Repeat


    Aluminium Optic Mounts

    http://www.laser-man.co.uk/opticmounts/

  5. #5
    Join Date
    Sep 2007
    Location
    Wiltshire
    Posts
    85

    Default

    Woweee! I'm only 7 diodes, 8 lenses and 7 die4drive pcbs behind you then
    A lovely childhood. Just me my mother and the voices.

  6. #6
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Thumbs up

    You are fucking crazy!



    Kinda blows "small footprint" out that window though huh? Very Nice! You just wait tillmarconi gets off his couch...
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  7. #7
    Join Date
    Jan 2005
    Location
    Norway
    Posts
    1,302

    Default

    oh

    I take one of that into my 3W rgb scanner

    That was a sweet setup !!
    very very nice..


    You do the same with blue ?

    price ?

  8. #8
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,488,500

    Cool

    Hmmm... I'm confused. How are you getting a 3 mm beam diameter at the outlet of that thing when you're combining 8 beams together. Are you aligning them in a circular arrangement with those mm1's? (A picture of the spot as it exits the projector would be helpful...) How much overlap (and thus loss) is there?

    Also, what is the beam diameter coming out of each individual diode? And do you have correcting optics somewhere in the beam path downstream of the mirrors?

    I've seen several takes on this idea, but I've never heard of anything with such a small beam diameter. It's one hell of an accomplishment though.

    Details -details!

    Adam

  9. #9
    Join Date
    May 2007
    Location
    Milwaukee WI
    Posts
    1,355

    Default

    I must say Adam said it best, I would really like to know how it was done all within 3mm. Please share more.

  10. #10
    Join Date
    Jan 2007
    Location
    Sheepsville, Wales, UK
    Posts
    3,372

    Default

    Top Banana Simon.
    Cant wait to see this in action on Feb 3rd - and to have a peek inside....
    I will second a previous comment - Blue! Blue! Blue!
    Lets hope blue di diodes come into the realms of reality soon (ie <$$$$$)


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