The SPC052AR.14 Fused Silica Plano-Concave Lens is a 430 to 700 nm antireflection coated 50.8 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, Newport's 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.
| Model | SPC052AR.14 |
|---|---|
| Lens Type | Spherical |
| Lens Shape | Plano-Concave |
| Effective Focal Length | -100 mm |
| Diameter | 2.00 in. (50.8 mm) |
| Antireflection Coating | 430-700 nm (AR.14) |
| Lens Material | UV Grade Fused Silica |
| Center Thickness (Tc) Tolerance | ±0.1 mm |
| f/# | -2.0 |
| Surface Quality | 20-10 scratch-dig |
| Wavelength Range | 430 to 700 nm |
| Diameter Tolerance | +0/-0.1 mm |
| Te | 8.60 mm |
| Edge Thickness (Te) Tolerance | Nominal Value |
| Focal length tolerance | ±1 % |
| BFL | -101.71 mm |
| FFL | -100.00 mm |
| Radius of Curvature | -45.900 mm |
| P2 | -1.71 mm |
| Clear Aperture | ≥central 90% of diameter |
| Centration, Spherical Lenses | ≤3 arc min |
| Surface Accuracy, Irregularity (lambda) | λ/8 |
| Surface Accuracy, Power (lambda) | 1.5 λ |
| Chamfers | 0–0.8 mm face width |
| Chamfers Angle/Tolerance | 45° ±15°, typical |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
