-100mm EFL ZnSe Plano-Concave Lens
Uncoated CVD ZnSe Plano-Concave Lens | 25.4mm Dia, -100mm EFL, 10.6μm
Premium uncoated CVD ZnSe plano-concave lens for 10.6um CO2 laser heads. High precision, ISO 9001 quality. In-stock & custom options. Request a quote now.
Product Overview
Uncoated CVD ZnSe Plano-Concave Lens | 25.4mm Dia, -100mm EFL, 10.6μm

Manufactured from high-purity CVD laser-grade zinc selenide (ZnSe), this uncoated plano-concave lens is designed for 10.6μm CO₂ laser systems and infrared optical assemblies. As a standard offering in our CVD ZnSe lenses portfolio, it delivers consistent negative focal length performance, ideal for beam expansion, collimation adjustment, and integration into laser head assemblies. The lens features precise dimensional tolerances and high surface quality to support reliable long-term operation in industrial environments.
Technical Specifications
| Diameter (D) | Back Focal Length (BFL) | Center Thickness (Tc) | Edge Thickness (Te) | Coating | Effective Focal Length (EFL) | Radius (R1) | Material | Design Wavelength | Diameter Tolerance | Center Thickness Tolerance | EFL Tolerance | Centration Error | Surface Quality | Chamfer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.40 mm | -100.8 mm | 2.00 mm | 2.60 mm | Uncoated | -100 mm | -140.3 mm | CVD Laser-Grade ZnSe | 10.6 μm | +0.0 / -0.1 mm | ±0.2 mm | ±1% | Less than 3 arcmin | 60/40 | 0.2 mm × 45° |
Applications
This plano-concave ZnSe lens is engineered for integration into a wide range of infrared and laser systems, including:
Internal focusing and beam expansion in CO₂ laser heads
CO₂ laser cutting, engraving, and marking equipment
Long-wave infrared (LWIR) collimation and beam shaping systems
Industrial laser processing and research optical setups
As a high-performance infrared lens solution, it maintains stable optical performance across the 10.6μm working waveband.
Customization & Service
We maintain an extensive in-stock selection of standard ZnSe optics for fast lead times, while also providing full custom manufacturing support to match your exact project specifications. Our engineering team conducts professional drawing review before every quotation, covering custom dimensions, specialized optical coatings, and bespoke geometry configurations. All production follows ISO 9001 quality standards with reliable delivery schedules and order-specific inspection documentation available on request. For tailored optical solutions, explore our custom optics capabilities to align with your application requirements.
Get a Targeted Quotation for Your Project
For R&D engineers and purchasing managers, inconsistent lead times, limited technical support for custom configurations, and unstable optical quality can cause project delays and production downtime. At iroptical, we combine ready-to-ship inventory, professional engineering review, and rigorous quality control to deliver dependable infrared optical components for every order.
Send your drawing, wavelength requirements, and volume details to sales@iroptical.com to receive an engineering-reviewed quotation tailored to your application needs.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.