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Thread: cylindrical lens pair vs anamorphic prisms?

  1. #201

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    What if I only use it at half power?
    Peace,Respect

  2. #202

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    Where can i find bigger hosts?
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  3. #203
    Join Date
    Aug 2010
    Location
    London or Spain depending on the weather
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    1,369

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    I think you should read "Jors" excellent post...... http://www.photonlexicon.com/forums/...limator-lenses apart from learning a lot you will find a link to a decent heat sink for your green.
    You will still probably need a fan cos greens get HOT.
    You can also get cheap little thermostat cards from Banggood or fleabay so you can pull the plug on the modulation input if the temp goes too high.

    Cheers
    PS. Find my post and scroll down three!
    Last edited by catalanjo; 03-06-2017 at 16:39. Reason: typos etc.

  4. #204

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    Thanks catalanjo
    ---------------------------------------------------
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  5. #205
    Join Date
    Aug 2010
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    London or Spain depending on the weather
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    1,369

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    Your welcome.

    Cheers

  6. #206

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    Quote Originally Posted by planters View Post
    Be careful of a diaphragm (as opposed to the pinhole in a spatial filter). These can trim the near field beams, but they can produce some diffraction noise from where the beams strike the edge of the aperture.
    Planters....what if I use a diaphragm to make the beams thinner but then use a second diaphragm with a slightly bigger hole(so the beams go straight through) to filter the noise?
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  7. #207

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    The only heatsinks I was able to find out of all the links were 12mm....the 520nm is 9mm
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  8. #208

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    Why are heatsinks for laser diodes so dam hard to find!
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  9. #209
    Join Date
    May 2014
    Location
    Barcelona, Spain
    Posts
    375

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    9mm/5,6mm diodes are hard pressed inside those 12mm dia. copper cylinders (12mm copper module)
    Z-bolt heatsink is designed to clamp such 12mm dia module. They also provide small fan to place on top (over those 4 holes)
    http://shop.z-bolt.com/Heat-Sink-for...ules_p_13.html
    https://sites.google.com/site/dtrlpf...s/ndg-1w-520nm

    Quote Originally Posted by king4quarter View Post
    Why are heatsinks for laser diodes so dam hard to find!

  10. #210

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    Ok yeah I've seen that but thought I'd buy one already made and then just slap a 50mm waterblock on it with a 50mm TEC http://www.ebay.co.uk/itm/262555895200
    The guy said it can run for 2-3hours and few minutes off duty cycle but I reckon the waterblock might be better since I already have a water pump for my 638nm diode...Im ordering the laser 12pm tonight....cant wait lol

    Cheers Jors
    Peace,Respect

  11. #211

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    Which is better between these two combinations or does it not make a difference?

    Pass green reflect red and then pass green and red reflect blue
    or
    Pass green reflect red and then pass blue reflect green and red

    It feels like a silly question to me but I just want to make sure
    Thanks
    Peace,Respect

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