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Thread: looking for some quality dichro,s

  1. #1
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    Default looking for some quality dichro,s

    Does anyone know a supplier with some good quality dichro,s with only a few percentage of loss in reflecting and passing true.

    reflecting 640nm and passing true 532nm
    reflecting 445nm and passing true 532nm and 640nm.

    Thanks!

  2. #2
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    Default

    Christian

  3. #3
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    Try Semrock for high quality..
    Edmund optics may also be worth a look.

    Cheers
    Ray

  4. #4
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    Hi.

    http://www.synchrovision.co.uk/produ...roic-filter-DF

    look there. Website is not complete yet, but those are on.

  5. #5
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    Pritzler also sells quality dichro's
    Last edited by mccarrot; 10-13-2009 at 07:50.

  6. #6
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    Thanks Mccarrot. The dichro is very good quality but i like the dichromount from lasever because of the round edge. Also the dichromount has a neopreen gasket that would fit the dichro from Phil if i make it a little bit smaller. Only problem is the height the size of the mount. The loss of the dichro from phil is very low with a competitive price. The best combination would be the dichro from phil with the gasket from lasever pressed in the dichromount from laserwave. But then the shipping costs would shooting true the roof

  7. #7
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    Quote Originally Posted by edison View Post
    Does anyone know a supplier with some good quality dichro,s with only a few percentage of loss in reflecting and passing true.

    reflecting 640nm and passing true 532nm
    reflecting 445nm and passing true 532nm and 640nm.

    Thanks!
    I measured reflection and transmission of some Laser-Wave dichros last year and found their performance to be remarkably good. They can provide curves on request, but basic parameters are on their web site:

    Coating
    GB/R
    (reflecting green
    &blue passing red)
    R>98%
    T>95%
    B/GR(reflecting blue
    passing green and red)
    R>98%
    T>93%
    R/GB(reflecting red
    passing green and blue)
    R>98%
    T>95%

    They are made with K9 substrates - similar to BK7 - so the transmission loss is slightly higher than you'd get with something like B270, but the overall performance is still very good for just laser display purposes.

  8. #8
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    Those are Chinese specifications.

    People who have used them in there projector and measured the real losses got different results.

    If you look at insanity projector: 2300mW before optics, 1700mW after optics.

    This is more than 25% loss in total.

  9. #9
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    Quote Originally Posted by mccarrot View Post
    If you look at insanity projector: 2300mW before optics, 1700mW after optics.
    His laser only contains 1 LaserWave dichro, the other is a hand picked Edmunds jobbie

  10. #10
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    Look at the waste beams one of my RGB lasers with laserwave dichro's.

    This weekend I will try to put power readings with the waste beams.
    Attached Thumbnails Attached Thumbnails laser inside.jpg  


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