The SPX023 Fused Silica Plano-Convex Lens is an uncoated, 1 inch (25.4 mm) diameter, fused silica plano-convex lens with an effective focal length of 125 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's UV grade fused silica precision plano-convex 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 | SPX023 |
|---|---|
| Lens Type | Spherical |
| Lens Shape | Plano-Convex |
| Effective Focal Length | 125 mm |
| Diameter | 1.00 in. (25.4 mm) |
| Antireflection Coating | Uncoated |
| Lens Material | UV Grade Fused Silica |
| Center Thickness (Tc) Tolerance | ±0.1 mm |
| f/# | 4.9 |
| Surface Quality | 20-10 scratch-dig |
| Wavelength Range | 195 to 2100 nm |
| Diameter Tolerance | +0/-0.1 mm |
| Te | 3.0 mm |
| Edge Thickness (Te) Tolerance | Nominal Value |
| Focal length tolerance | ±1 % |
| BFL | 121.97 mm |
| FFL | 125.00 mm |
| P2 | -3.03 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 |
