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69-640

Optical Lens by Edmund Optics
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The 69-640 from Edmund Optics is a Optical Lens with Wavelength Range 2000 to 14000 nm, Focal Length 40 mm, Center Thickness 3 mm, Diameter 25 mm, Radius 120.16 mm. More details for 69-640 can be seen below.

Product Specifications

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Product Details

  • Part Number
    69-640
  • Manufacturer
    Edmund Optics
  • Description
    25 mm Dia. x 40 mm FL, Uncoated, Ge Plano-Convex Lens

General Parameters

  • Sub Type
    Plano-Convex Lens
  • Lens Shape
    Spherical Lens
  • Wavelength Range
    2000 to 14000 nm
  • Focal Length
    40 mm
  • Back Focal Length(BFL)
    39.25 mm
  • Effective Focal Length(EFL)
    40 mm
  • Center Thickness
    3 mm
  • Center Thickness Tolerance
    ±0.10 mm
  • Diameter
    25 mm
  • Radius
    120.16 mm
  • Radius 1
    120.16 mm
  • Clear Aperture
    24 mm
  • Diameter Tolerance
    0/-0.1 mm
  • Aperture(f-number)
    1.6
  • Edge Thickness(ET)
    2.35 mm
  • Centration Error
    3 arcmin
  • Numerical Aperture
    0.31
  • Coating
    Uncoated
  • Substrate/Material
    Germanium
  • Surface Quality
    60-40 scratch-dig
  • RoHS
    Yes

Technical Documents
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