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  2. Optics
  3. Optical Lenses
  4. Bi-Convex Lenses
  5. N-BK7 Bi-Convex Lenses
  6. Uncoated N-BK7 Bi-Convex Lenses
  7. 39223

Focusing Lens, 38.1 mm, N-BK7/A, Bi-Convex, 50 mm EFL, Uncoated

  • Lens Shape
    Bi-Convex
  • Diameter
    38.1 mm
  • Lens Material
    N-BK7
  • Antireflection Coating
    Uncoated
  • Surface Quality
    60-40 scratch-dig
  • F/#
    1.3
  • Effective Focal Length (EFL)
    50.0 mm
  • Back Focal Length (BFL)
    49.4 mm
  • Edge Thickness (Te)
    2.0 mm
  • Center Thickness (Tc)
    9.1 mm
  • Principal Plane 2 (P2)
    -0.6 mm
  • Design Wavelength
    589 nm
  • Centration
    3 arc min
  • Focal Length Tolerance
    ±2 %
  • Diameter Tolerance
    +0/-0.25 mm
  • Center Thickness Tolerance
    ±0.25 mm
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