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  6. 31Y02ML.1

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Linear Variable Metallic ND Filter, UVFS, 79.4 x 25.4 mm, 0.08-2 OD

Model: 31Y02ML.1

Linear Variable Metallic ND Filter, UVFS, 79.4 x 25.4 mm, 0.08-2 OD

Linear Variable Metallic ND Filter, UVFS, 79.4 x 25.4 mm, 0.08-2 OD

Model: 31Y02ML.1

Technical Specs

  • Size
    79.4 x 25.4 mm
  • Wavelength Range
    430-700 nm
  • Optical Density
    0.08 - 2
  • Optical Density Tolerance
    ±5%
  • Material
    UV Grade Fused Silica
  • Damage Threshold
    75 W/cm2 CW, 10 mJ/cm2 with 10 nsec pulses at 1064 nm, typical
  • Size Tolerance
    +0/-0.25 mm
  • Thickness
    3.18 mm
  • Thickness Tolerance
    +0/-0.76 mm
  • Surface Flatness
    ≤1λ
  • Surface Quality
    20-10 scratch-dig
  • Clear Aperture
    ≥central 90% of length and 80% of width
  • Wedge
    15 ±5 arc min
  • Chamfers
    0.25–0.76 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Durability
    Metalized area MIL-M-13508C, AR coated area MIL-C-675, moderate abrasion
  • Cleaning
    See How to Clean Optics

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