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LK1085L2

Optical Lens by Thorlabs Inc
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The LK1085L2 from Thorlabs Inc is a Optical Lens with Wavelength Range 350 nm to 2.0 µm, Focal Length -20.0 mm, Center Thickness 2.0 mm, Radius -10.3 mm, Edge Thickness(ET) 4.7 mm. More details for LK1085L2 can be seen below.

Product Specifications

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Product Details

  • Part Number
    LK1085L2
  • Manufacturer
    Thorlabs Inc
  • Description
    f=-20 mm, H=15 mm, L=30 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated

General Parameters

  • Sub Type
    Plano-Concave Lens
  • Lens Shape
    Spherical Lens
  • Wavelength Range
    350 nm to 2.0 µm
  • Design Wavelength
    587.6 nm
  • Focal Length
    -20.0 mm
  • Focal Length Tolerance
    ±1%
  • Back Focal Length(BFL)
    -21.3 mm
  • Effective Focal Length(EFL)
    -20.0 mm
  • Center Thickness
    2.0 mm
  • Center Thickness Tolerance
    ±0.2 mm
  • Radius
    -10.3 mm
  • Radius 1
    -10.3 mm
  • Clear Aperture
    0.9
  • Edge Thickness(ET)
    4.7 mm
  • Centration Error
    3 to 5 arcmin @50 mm
  • Substrate/Material
    N-BK7
  • Surface Accuracy
    λ/2, λ/4, 3λ/2
  • Surface Quality
    60-40 Scratch-Dig

Technical Documents
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