The SPC028AR.10 Fused Silica Plano-Concave Lens is a 245 to 440 nm antireflection coated 25.4 mm diameter fused silica plano-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications, Newports UV grade fused silica precision plano-concave lenses are polished to tight tolerances using master test plates to ensure minimum wavefront distortion. UV grade fused silica will not fluoresce under UV light and is resistant to radiation. And for high-energy applications, the extreme purity of fused silica eliminates microscopic defect sites that could lead to laser damage.
Технические характеристики
- Lens Shape Plano-Concave
- Diameter 25.4 mm
- Lens Material UV Fused Silica
- Antireflection Coating 245-440 nm
- Coating Type UV Multilayer
- Coating Code AR.10
- Damage Threshold 2 J/cm2, 10 nsec pulses, 10 Hz at 355 nm
- Surface Quality 20-10 scratch-dig
- Surface Flatness &lambda,/2
- Surface Accuracy, Irregularity &lambda,/4
- Surface Accuracy, Power 1.5 &lambda,
- F/# -3.9
- Effective Focal Length (EFL) -100 mm
- Back Focal Length (BFL) -101.71 mm
- Radius of Curvature (R) -45.900 mm
- Edge Thickness (Te) 3.95 mm
- Center Thickness (Tc) 2.5 mm
- Principal Plane 2 (P2) -1.71 mm
- Design Wavelength 589 nm
- Centration &le,3 arc min
- 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
