optical window / Mirror

Optical Mirror / optical window； UPT offers dielectric coated mirrors and metal coated mirrors / window which are made of substrate such as Bk7, K9, Fused Silica, CaF2, Sapphire. Specifications: Material:BK7 Grade A Optical Glass； Typical Diameter (Φmm) 1.0-D200mm； Typical Thickness (mm) 2.0-6.5； Diameter Tolerance (mm)+/-0.2 (General), +0.0/-0.02 (High Precision)； Thickness Tolerance (mm)±0.2 (General), ±0.05 (High Precision)； Clear Aperture >80% (Small Size), >95% (Large Size)； Parallelism 6 min. (General), 3 sec. (High Precision)； Surface Quality 80/50 (General), 10/5 (High Precision)； Flatness (per*) λ(General), λ/10 (High Precision)； Bevel (face width x 450)<0.25mm； Coating：Uncoated, HR, PR, Metal -Ag, Al, Au Coating, etc. United photonics technology

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