134mm Optical Window with coating

• Diameter: 134 mm (tolerance +0/-0.25 mm)
• Thickness: 3–10 mm (custom)
• Material: ZnS, Ge, Si, Sapphire, Fused Silica, N-BK7 (custom)
• Surface Quality: 60-40 / 40-20 S/D
• Surface Flatness: λ/4 to λ/10 @ 632.8 nm
• Parallelism: < 10 arcsec
• Clear Aperture: > 90% of diameter
• Coating: AR 3–5 µm / 8–12 µm / BBAR 400–700 nm / DLC protective (optional)
• Application: Thermal imaging, FLIR, infrared sensors, protective cover, aerospace optics