CO2 laser & LWIR ZnSe concave lens
CVD ZnSe Plano-Concave Lens | 25mm Diameter, -100mm EFL, 10.6μm Design
High-precision CVD ZnSe plano-concave lens with 25mm diameter & -100mm EFL. Optimized for 10.6μm CO2 lasers & LWIR systems. In-stock & custom options. Request a quote.
Product Overview
CVD ZnSe Plano-Concave Lens | 25mm Diameter, -100mm EFL, 10.6μm Design
As part of our premium CVD ZnSe lenses portfolio, this high-precision plano-concave lens is fabricated from laser-grade chemical vapor deposition zinc selenide for exceptional optical homogeneity and low infrared absorption. Designed for a 10.6μm operating wavelength and coated for 8–12μm bands, it delivers stable negative focal length performance for beam expansion, divergence control, and optical system collimation adjustment.
Technical Specifications
| Product Type | Diameter | Effective Focal Length (EFL) | Back Focal Length (BFL) | Center Thickness (Tc) | Edge Thickness | Radius R1 | Material | Design Wavelength | Coating | Diameter Tolerance | Center Thickness Tolerance | EFL Tolerance | Centration Error | Surface Quality | Edge Chamfer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plano-Concave Lens | 25 mm | -100 mm | -100.8 mm | 2.00 mm | 2.6 mm | -140.3 mm | CVD Laser-Grade Zinc Selenide (ZnSe) | 10.6 μm | Ravg < 1.5% @ 8-12 μm | +0.0 / -0.1 mm | ±0.2 mm | ±1% | < 3 arcmin | 60/40 Scratch-Dig | 0.2 mm × 45° |
Key Applications
This ZnSe concave lens is engineered for demanding infrared and laser systems. Primary use cases include 10.6μm CO2 laser beam expanders, LWIR optics thermal imaging assemblies, infrared sensing instruments, FLIR systems, and laser beam shaping setups. It is particularly well-suited for expanding collimated laser beams or increasing focal length in existing optical trains.
Customization & OEM Capabilities
iroptical maintains an extensive in-stock selection of standard infrared optics for fast prototyping and low-volume orders, while fully supporting high-level customization to match exact system requirements. We offer alternative focal lengths, custom dimensions, and specialized ZnSe AR coating options for MWIR, LWIR, and single-wavelength laser bands. All production follows ISO 9001-aligned quality control processes, ensuring uncompromising precision and reliable lead times for batch OEM orders.
Technical Support & Procurement
Sourcing reliable infrared optics that balance custom engineering support, consistent quality, and predictable delivery can be challenging for engineering and procurement teams. Our in-house optical engineering team bridges this gap by providing fast drawing reviews, technical consultation, and stable volume supply for both standard and custom components. For stock availability checks, custom specification requests, or to receive a formal quote, contact our technical sales team at sales@iroptical.com.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.