Protective Window, for F-Theta Lenses, AR 400nm and 700nm

Manufacturer's part number :


Manufacturer Altechna


Description :

Protective Windows AR/AR at 400nm and 700nm for F-Theta Lenses is one of the most commonly used tools used for laser beam focusing in laser fabrication equipment is F-Theta lens. Despite of relatively long lens working distance splatter caused lens contamination is significant if metals are being processed. Windows are designed to protect the lens surface from debris. Being ten to thousand times less expensive than F-Theta lens itself, window is of high importance as protective consumable.

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  • Quote and availability


  • Material: UV Fused Silica
  • Diameter available mm: 45; 37
  • Thickness available mm: 6; 2
  • Diameter tolerance: +0.0/-0.1 mm
  • Thickness Tolerance: +/-0.1 mm
  • Laser induced damage threshold: >20 J/cm² @ 1064 nm, 3 ns, 10 Hz
  • Benefits

  • Long life time
  • High laser induced damage threshold
  • Every window is packaged individually
  • High surface quality and low wavefront distortion
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Type Protective windows  

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Spectral Range VIS (400nm-700nm)  
Damage Threshold/Absorption Standard damage threshold-Absorption