Specifications

  • Lens Shape
    Plano-Convex
  • Lens Material
    Zinc Selenide (ZnSe)
  • Coating Type
    Duralens™
  • Absorption
    <0.20%
  • Reflection
    <0.2%
  • Transmission
    >99.3%
  • Surface Figure
    2 Fringes@ 0.633 µm
  • Surface Irregularity
    0.5 Fringe @ 0.633 µm
  • Clear Aperture
    ≥90%
  • Diameter Tolerance
    +0.0 /-0.1 mm
  • Edge Thickness Tolerance
    ±0.1 mm
  • ETV
    <0.025 mm

Features

Plano-Convex Lenses

Plano-Convex lenses have one flat surface and one curved surface. These lenses are more suitable for high turnover cutting applications including cutting and welding of a wide range of materials (metals, wood, ceramics, plastics, and composites) when the cost is often more important than the level of accuracy. When cutting steels, and other thicker materials, a Plano-Convex Lens provides a greater width of cut which enables the laser's Oxygen Assist to enter the cut and ease the cutting process. In addition, Plano-Convex lenses give a greater depth of field needed to maintain a taperless edge when cutting thicker materials.

CO2 Focusing Lens Coatings

Our standard Duralens™ AR coating features <0.2% absorption rate, HeNe transparency, a standard product lifetime, and a decent cost/benefit ratio. With guaranteed low absorption (LA) and other unique characteristics, the Black Magic™ coating has a lower absorption rate, but it is not transparent, although it is more durable with an extended product lifetime. The ultra low absorption (ULA) Clear Magic™ coating, as its name suggests, it transparent, and has an ultra-low absorption rate of <0.13%, as well as an extended product lifetime, but for a higher price. Both the Black Magic™ and the Clear Magic™ coatings are made from a radioactive-free coating.

AR COATING Duralens™ Black Magic™ (LA) Clear Magic™ (ULA)
Transmission >99.3% >99.35% >99.37%
Absorption <0.20% <0.15% <0.13%
Reflection <0.20% <0.25% <0.25%

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CompareModelDrawings, CAD & Specs Diameter Focal Length Edge Thickness OEM Compatibility AvailabilityPrice
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