The SPX060AR.12 High Energy Fused Silica Lens is an AR.12 coated (at 1064 and 532 nm), 1 inch (25.4 mm) diameter, HPFS 7978 plano-convex lens with an effective focal length of 400.0 mm at 546.1 nm. It is designed for high frequency laser pulses where standard grade fused silica does not perform very well. The special grade fused silica Corning HPFS 7978 has very low hydroxyl molecule presence compared to standard fused silica material, which results in less absorption of laser light and greatly reducing the chances of internal damage.
Технические характеристики
- Lens Shape Plano-Convex
- Diameter 25.4 mm
- Lens Material HPFS 7978
- Antireflection Coating 1064 & 532 nm
- Coating Code AR.12
- Reflectance R
- Damage Threshold 15J/cm2 with 20 nsec pulses @1064 nm, 10 Hz
- Surface Quality 15-5 scratch-dig
- Surface Flatness &lambda,/10
- Surface Accuracy, Irregularity &lambda,/8
- Surface Accuracy, Power 1.5 &lambda,
- F/# 15.8
- Effective Focal Length (EFL) 400 mm
- Back Focal Length (BFL) 397.64 mm
- Radius of Curvature (R) 184.031 mm
- Edge Thickness (Te) 3.0 mm
- Center Thickness (Tc) 3.439 mm
- Design Wavelength 546.1 nm
- Chamfers 0–0.8 mm face width
- Chamfers Angle/Tolerance 45° ±15°, typical
- Focal Length Tolerance ±1 %
- Diameter Tolerance +0/-0.1 mm
- Center Thickness Tolerance ±0.1 mm
- Clear Aperture &ge,central 90% of diameter
- Cleaning See How to Clean Optics
