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Thread: Cylindrical lens pairs, correction optics, anamorphic application

  1. #1
    Join Date
    Oct 2010
    Location
    Poland
    Posts
    24

    Default Cylindrical lens pairs, correction optics, anamorphic application

    Hello Guys!
    Maybe you don't know me but I'm here from 2010 and I was learing a lot from all of you.
    Finally I decided to set up a laser company with my friends. I hope in near future we will be a bit more known brand

    Special discount for Photonlexicon members comparing to Ebay price
    The lenses project was made by my own. I ordered them in optics factory. Due to a great coating they were a bit pricey.


    Each lens pair is 65USD + 5 USD shipping worldwide.

    For larger quantity a discount will be applied
    If you have any question or need more info/photos, feel free to ask





    First pair is dedicated for red Mitsubishi/Oclaro diodes, 1W 520nm NDG7475 and 3,5W 445nm NDB7A75 diodes.

    Second pair is dedicated for 445nm popular diodes 1 - 2,5W and also works well with NDG7475 1W 520nm.




    Lenses dimensions are 12mm x 12mm and 5-7 mm thick.
    Lenses are AR coated for whole visible spectrum 400 - 700nm.
    Extraordinary visible light transmittance >99,7% proved with AR test shown below.




    >99,3% light transmittance for whole pair!




    Below there are photos with the results of measurements for several laser diodes.

    Every photo was made at 10 meter distance between the wall and lenses.


    Starring: First cylindrical pair and Oclaro HL63193MG 700mW 638nm:







    Starring: First cylindrical pair and Nichia NDG7475 1W 520nm:







    Starring: First cylindrical pair and Nichia NDB7A75 3,5W 445nm
    I have only "after lens" shot, without lens the beam spot is almost the same as the Oclaro's one.







    Starring: Second cylindrical pair and Nichia NDB7875 1,6W 445nm:







    Starring: Second cylindrical pair and Nichia NDG7475 1W 520nm:







  2. #2
    Join Date
    May 2007
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    1 hr from everything in SoCal
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    2,600

    Default

    Posting to keep track. I may be buying soon.
    Those who fail to grasp art are the ones who criticize it.

  3. #3
    Join Date
    Mar 2013
    Location
    Langhus - Norway
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    Default

    How to identify PL members when ordering from Ebay?
    __________________________________________________ __________

    More projects than time available.
    More projects started than finished.
    More money spent than earned.
    More failure than success.
    Just got to love lasers!

  4. #4
    Join Date
    Oct 2010
    Location
    Poland
    Posts
    24

    Default

    On ebay I do not identify anyone. You can PM me or write an email with proper order or suggestion with the price for bigger quantity.

    You can also register on my website, write me email that you are from PL and I will then give proper discount.

    http://www.ebay.com/sch/tomorrowssys...1&_ipg=&_from=
    http://optlasers.com/en/8-accessories-and-optics
    -----------------------------------------------------
    Mateusz
    Opt Lasers Poland Team manager
    Tomorrow's System LTD
    http://optlasers.com

  5. #5
    Join Date
    Jun 2007
    Location
    Monroe, Mi USA
    Posts
    818

    Default

    Very Interesting! Very good transmission. Having both lenses the same size should simplify mounting. I have a set coming for testing on the NDB7875. Will post results as soon as possible. The posted pics show MOST bang for the buck on the NDG7475. CDBEAM=======>
    Beam Axiom #1 ~The Quantum well is DEEP ! Photons for ALL !!
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    Beam Axiom #2 ~Yes...As a matter of fact...I DO wear tinfoil on my head !!
    .
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    Beam Axiom #4 ~A Chicken in every Pot, and a Laser Lumia in every Livingroom !!
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    Beam Axiom #5 ~"Abstract Photonic Expressionism"....is "Abstractonimical" !!
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  6. #6
    Join Date
    Mar 2008
    Location
    lawton ok
    Posts
    91

    Default

    hello i am about to order cylindrical pair for NDB7875 diodes..

    whats the best lens to use.. g2, 3 glass optic, 2 glass? etc..

    intended purpose is to get good beam quality for galvos.. also taking recommendations on that too

  7. #7
    Join Date
    Mar 2008
    Location
    lawton ok
    Posts
    91

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    has anyone used these with Mitsubishi G84 638nm diodes yet?

  8. #8
    Join Date
    Aug 2010
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    London or Spain depending on the weather
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    Do you have any 1/2wave plates for 638nm
    Cheers

  9. #9
    Join Date
    Oct 2010
    Location
    Poland
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    Default

    Quote Originally Posted by catalanjo View Post

    Do you have any 1/2wave plates for 638nm
    Cheers
    Yes we have. I will be doing order for 100 pieces soon, now I have around 2 left. They are really good efficiency. Ravg <0,5%.
    These are actually rotators not waveplates, working the same but much easier to use. Write me to email: contact@optlasers.com
    -----------------------------------------------------
    Mateusz
    Opt Lasers Poland Team manager
    Tomorrow's System LTD
    http://optlasers.com

  10. #10
    Join Date
    Oct 2010
    Location
    Poland
    Posts
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    Default

    Quote Originally Posted by b52productions View Post
    hello i am about to order cylindrical pair for NDB7875 diodes..

    whats the best lens to use.. g2, 3 glass optic, 2 glass? etc..

    intended purpose is to get good beam quality for galvos.. also taking recommendations on that too
    Sorry for late reply.
    When I was doing the project of this lens it was dedicated to use with 3 glass optics. I actually dind't check the difference between 3 and 2 glass.
    For the G2 this will work for sure too. The magnification of a ratio of lens is around 3X and second pair 2X.

    3X works really nice for 3,5W diode but for 1,6W will spread the beam too much. So I would prefer 2X lens with 3 glass lens VS 3X lens with G2.

    I do not really like to use G2 or other single element lens. I know power is bigger, but beam divergence is worse.
    -----------------------------------------------------
    Mateusz
    Opt Lasers Poland Team manager
    Tomorrow's System LTD
    http://optlasers.com

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