Penta Prism, N-BK7, A=B=C=25.4 mm

Technical Specs

  • Size
    25.4 x 25.4 x 25.4 mm
  • Coating Type
    Protected Aluminum with black paint overcoat
  • Material
    Grade A N-BK7
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    ≤λ/4 at 632.8 nm over the clear aperture
  • Clear Aperture
    > 85% of central face
  • Size Tolerance
    +0/-0.15 mm
  • Chamfers
    0.25-0.5 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning
  • Damage Threshold
    100 W/cm2 CW, 10 mJ/cm2 with 10 nsec pulses at 532 nm, typical