Optical Window
- Optical windows are flat, parallel optical plates. They serve as protective transparent covers in optical systems and do not alter the shape or direction of the transmitted light beam.
Features
• High surface quality
• Excellent parallelism
• Low optical distortion
• Multiple coating selections
• Custom size & substrate available
Application
Flat optical plate used to protect internal optical components, transmit light without changing beam shape or direction. Multiple substrates available for visible, UV and infrared applications.
Specifications
• Component Shape: Optical Window
• Substrate: N-BK7, UV Fused Silica (Standard), CaF₂, ZnSe (Custom only)
• Wavelength Range:
• N-BK7: 350 nm – 2.0 μm
• UV Fused Silica: 185 nm – 2.0 μm
• CaF₂: 200 nm – 7.0 μm
• ZnSe: 600 nm – 16 μm
• Surface Quality:
• N-BK7 / CaF₂ / ZnSe: 60-40 Scratch-Dig (40-20 optional)
• UV Fused Silica: 40-20 Scratch-Dig
• Surface Flatness: λ/4
• Thickness Tolerance: ±0.1 mm
• Dimension Tolerance: +0.0 / -0.1 mm
• Clear Aperture: >90% of surface
• Coating Options: Uncoated / Broadband AR / UV AR
• Size Range: 3 mm – 60 mm