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Thread: Geltech Aspheric Lenses for Blue, Green, Red Lasers

  1. #1
    Join Date
    May 2011
    Location
    Germany (Kassel)
    Posts
    264

    Default Geltech Aspheric Lenses for Blue, Green, Red Lasers

    Hi!

    For sale are Lightpath´s GELTECH aspheric lenses with the A coating (350-700nm). Suitable for all laser diodes within the coating range.

    Lightpath´s Lens Code:357775

    NA = 0.60
    CA = 4.80mm
    EFL= 4.02mm
    OD = 6.33mm
    WD= 2.41mm
    DW= 408nm
    AR = 350-700nm
    Thread = M9x0.5
    Length = 8mm

    Price: 15€ each plus 5% PayPal fee and shipping. (EU customers need to add 19%VAT)

    Click image for larger version. 

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  2. #2
    Join Date
    Apr 2009
    Location
    Zürich-Bangkok-Dubai
    Posts
    274

    Default

    Hallo!

    What are the % losses on these lenses ?

  3. #3
    Join Date
    May 2011
    Location
    Germany (Kassel)
    Posts
    264

    Default

    Hi Philipp!

    Depends on the wavelength but not more than 4-5% overall losses (transmitance and reflectance losses together).

    Alex
    Last edited by lasertack; 06-13-2014 at 09:29.

  4. #4
    Join Date
    May 2011
    Location
    Germany (Kassel)
    Posts
    264

    Default

    Here is a beam profile testing report for the Geltech lens used to collimate a 9mm 445nm diode.
    Attached Thumbnails Attached Thumbnails NDB7675 with Geltech Aspheric Lens.pdf  


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