The SPC502RAR.S Fused Silica Plano-Concave Lens is made of high purity UV Grade Fused Silica Corning 7980 0A material. It is 12.7 mm diameter plano-concave lens with an effective focal length of -40 mm. The front and back surfaces have sub-wavelength nano-textures etched into the surface creating a high performance anti-reflection effect. The RAR.S pattern is optimized for 250-550 nm. The surface quality of the lens is 10-5 scratch dig with high damage thresholds.
Технические характеристики
- Lens Shape Plano-Concave
- Diameter 12.7 mm
- Lens Material UV Fused Silica
- Antireflection Coating 250-550 nm
- Reflectivity R
- Surface Quality 10-5 scratch-dig
- Surface Accuracy, Irregularity λ/10 at 632.8 nm, power removed
- Effective Focal Length (EFL) -40 mm
- Radius of Curvature (R) -20.34 mm
- Edge Thickness (Te) 4.0 mm
- Center Thickness (Tc) 3.0 mm
- Design Wavelength 589 nm
- Chamfers 0.4 mm bevel
- Chamfers Angle/Tolerance 45 ±15°
- Clear Aperture ≥ central 67% of diameter
