25.4mm Dia 100mm FL ZnSe IR Lens
CVD ZnSe Bi-Convex Lens | 25.4mm Diameter, 100mm EFL, Ravg<1.5% @8–12μm
High-precision CVD ZnSe bi-convex lens (25.4mm, 100mm EFL) with Ravg
Product Overview
CVD ZnSe Bi-Convex Lens | 25.4mm Diameter, 100mm EFL, Ravg<1.5% @8–12μm
Manufactured from high-quality CVD zinc selenide (ZnSe), this bi-convex lens is optimized for 10.6μm CO2 laser systems and infrared optical applications. It features a broadband anti-reflection (BBAR) coating delivering average reflectance below 1.5% across the 8–12μm wavelength range, ensuring minimal optical loss and high transmission. Precision-manufactured to tight tolerances, it delivers consistent focusing performance for demanding industrial and scientific use cases, with low thermal lensing effects suitable for continuous high-power laser operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Back Focal Length (BFL) | 99.5 mm |
| Diameter (D) | 25.40 mm |
| Center Thickness (Tc) | 2.60 mm |
| Edge Thickness (Te) | 2.00 mm |
| Radius of Curvature (R1 = R2) | 279.80 mm |
| Effective Focal Length (EFL) | 100.00 mm |
| Coating Performance | Ravg < 1.5% @ 8–12μm |
| Material | CVD Zinc Selenide (ZnSe) |
| Diameter Tolerance | +0.0 / -0.1 mm |
| Center Thickness Tolerance | ±0.2 mm |
| Design Wavelength | 10.6μm |
| Focal Length Tolerance (EFL) | ±1% |
| Centration Error | < 3 arcminutes |
| Surface Quality (Scratch-Dig) | 60/40 |
| Edge Chamfer | 0.2mm × 45° |
Applications
This ZnSe bi-convex lens is ideally suited for a wide range of infrared and laser applications, including CO2 laser processing systems, FTIR spectroscopy equipment, thermal imaging modules, infrared optical sensors, and laser beam focusing setups. It is also compatible with machine vision optical paths and industrial laser manufacturing systems requiring precise IR focusing performance and stable output under continuous operation.
Customization & Service
We maintain an extensive in-stock selection of standard ZnSe optics for immediate delivery, including this 25.4mm bi-convex lens. For custom requirements, we offer full drawing-based manufacturing support with engineering review before every quote, backed by ISO 9001 certified production processes. All products undergo strict quality inspection before shipment, with reliable lead times and full traceability of inspection records available on request.
Sourcing & Engineering Support
For engineering and procurement teams facing long lead times, limited customization options, or inconsistent technical support for infrared optics, we provide dedicated engineering guidance, flexible custom manufacturing, and reliable delivery schedules to keep your projects on track. Submit your drawing, wavelength requirements, and tolerance specifications to sales@iroptical.com for a detailed quote and professional engineering review.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.