Positive meniscus lens for CO2 laser focusing
CVD ZnSe Positive Meniscus Lens | 10.6μm, 50mm EFL, 8-12μm AR Coating
High-precision CVD ZnSe positive meniscus lens for 10.6μm CO2 lasers. 50mm EFL with 8-12μm AR coating. In-stock & custom options. Request a quote today.
Product Overview
CVD ZnSe Positive Meniscus Lens | 10.6μm, 50mm EFL, 8-12μm AR Coating
Manufactured from high-purity CVD laser-grade zinc selenide, this positive meniscus lens is precision-engineered for 10.6μm CO2 laser systems, delivering consistent focusing performance with minimal spherical aberration. As a high-performance option among ZnSe meniscus lenses, it features a broadband AR coating optimized for the 8-12μm LWIR range, ensuring high transmission and low thermal lensing effects in continuous industrial operation.
Technical Specifications
| Diameter | Center Thickness (Tc) | Edge Thickness (Te) | Radius R1 | Radius R2 | Effective Focal Length (EFL) | Back Focal Length (BFL) | Material | Diameter Tolerance | Focal Length Tolerance | Surface Quality | Center Thickness Tolerance | Centration Error | Bevel | Design Wavelength | Coating |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 38.05 mm | 5.6 mm | 3 mm | 46 mm | 121.5 mm | 50 mm | 47 mm | CVD laser-grade ZnSe | +0.0 / -0.1 mm | ±1% | 60/40 Scratch/Dig | ±0.2 mm | Less than 3 arc minutes | 0.2 mm × 45° | 10.6 μm | Avg reflectance less than 1.5% at 8-12μm |

Applications
This laser focusing lens serves as a critical component in CO2 laser processing systems, including industrial laser cutting machines, laser engraving workstations, laser marking equipment, material processing lines, and precision manufacturing setups. Its 50mm effective focal length supports stable beam focusing for fine detail processing and high-power material removal applications across industrial and commercial laser platforms.
Customization & Service
We maintain an extensive in-stock catalog of standard ZnSe meniscus lenses for fast shipment, while offering comprehensive custom optics support for non-standard dimensions, focal lengths, coating specifications, and material requirements. Every custom order undergoes full engineering drawing review prior to quotation, with ISO 9001-aligned manufacturing and inspection processes to deliver world-class precision and consistent quality. Our controlled production workflows guarantee reliable lead times for both stock and custom configurations.
Support & Inquiry
For R&D and sourcing teams, inconsistent coating performance, extended custom lead times, and lack of pre-quote technical validation can introduce costly delays and performance risks to laser system development. Our team provides upfront engineering guidance, transparent lead time commitments, and order-aligned inspection documentation to mitigate these challenges. To request a formal quote, submit your optical drawing, or discuss custom specifications, please contact our technical team directly at sales@iroptical.com.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.