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49-861

Optical Lens by Edmund Optics
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The 49-861 from Edmund Optics is a Optical Lens with Wavelength Range 400 to 700 nm, Focal Length 50.8 mm, Center Thickness 2.5 mm, Diameter 12.7 mm, Radius 26.25 mm. More details for 49-861 can be seen below.

Product Specifications

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Product Details

  • Part Number
    49-861
  • Manufacturer
    Edmund Optics
  • Description
    12.7 mm Dia. x 50.8 mm FL, MgF2 Coated, Plano-Convex Lens

General Parameters

  • Sub Type
    Plano-Convex Lens
  • Lens Shape
    Spherical Lens
  • Wavelength Range
    400 to 700 nm
  • Focal Length
    50.8 mm
  • Focal Length Tolerance
    ±1 %
  • Back Focal Length(BFL)
    49.15 mm
  • Effective Focal Length(EFL)
    50.8 mm
  • Center Thickness
    2.5 mm
  • Center Thickness Tolerance
    ±0.10 mm
  • Diameter
    12.7 mm
  • Radius
    26.25 mm
  • Radius 1
    26.25 mm
  • Clear Aperture
    11.7 mm
  • Diameter Tolerance
    0/-0.1 mm
  • Bevel
    Protected
  • Aperture(f-number)
    4
  • Edge Thickness(ET)
    1.72 mm
  • Centration Error
    3 - 5 arcmin
  • Numerical Aperture
    0.13
  • Coating
    MgF2
  • Substrate/Material
    N-BK7
  • Surface Quality
    40-20 scratch-dig
  • RoHS
    Yes
  • Note
    Coating Specification:- Ravg =1.75% @ 400 - 700 nm, Energy Density Limit:- 10 J/cm2 @ 532 nm, 10 ns
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