Description
Laser Protective Windows / Lens
Brief Introduction
Laser protective lens, also called laser machine window mirror or laser machine dust-proof lens, is mainly used for blocking debris from splashing and preventing spatter from damaging the lens during laser cutting, welding, marking and engraving.Anti-reflection coatings with high damage threshold (>15J/cm2) are plated on both sides to reduce reflection. It is currently widely used in laser cutting, welding, marking, engraving and other applications.
Product Features:
• High anti-damage threshold
• Very low residual reflection
• Low scattering
• Little absorption
Typical technical parameters:
Material: Imported quartz, quartz, K9 glass
Dimension: D25.4*4.0mm
Diameter tolerance +/-0.1mm
Thickness tolerance +/-0.1mm
Clear aperture >90%
Parallelism <1’
Surface quality: 60/40, 40/20
Transmission wavefront distortion: <λ every 25mm @632.8nm
Chamfer: <0.5mm*45 degree
Coating: Anti-reflection coating with high damage threshold is plated on both sides,
Single-sided residual reflectivity: R<0.5%@1047-1064nm, incident angle 0 degrees
Damage threshold >15J/cm2, 20ns, 20Hz, @1064nm
