IR lens with low reflection coating for LWIR
ZnSe Bi‑Convex Lens D=12.70mm F=20.00mm, Ravg<1.5% @8‑12μm
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Product Overview
ZnSe Bi‑Convex Lens D=12.70mm F=20.00mm, Ravg<1.5% @8‑12μm
This CVD ZnSe bi‑convex lens delivers stable optical performance across long‑wave infrared bands, widely deployed for beam focusing and collimation. Manufactured to tight mechanical and optical tolerances, this component suits system integration for laser and infrared detection projects. As one of our infrared optical components, it supports both standard ordering and application‑oriented modification.
Technical Specifications
| Parameter | Value |
| Material | ZnSe (Zinc Selenide) |
| Diameter (D) | 12.70 mm |
| Diameter Tolerance | +0.0 / -0.1 mm |
| Effective Focal Length (EFL) | 20.00 mm |
| EFL Tolerance | ±1% |
| Back Focal Length (BFL) | 19.4 mm |
| Center Thickness (Tc) | 2.70 mm |
| Center Thickness Tolerance | ±0.2 mm |
| Edge Thickness (Te) | 2.00 mm |
| Radius R1=R2 | 55.30 mm |
| Design Wavelength | 10.6 μm |
| Coating | Ravg<1.5% @8‑12μm |
| Centration Error | < 3 arc‑minutes |
| Surface Quality | 60/40 |
| Bevel | 0.2 mm × 45° |
Applications
This ZnSe bi‑convex lens fits LWIR optical systems including machine‑vision infrared light paths, optical sensor assemblies, CO₂ laser beam delivery, thermal imaging equipment, and infrared spectroscopy setups. It focuses or collimates infrared radiation for industrial measurement and detection hardware.
Customization & Service
iropitical supplies extensive in‑stock infrared optics while offering high‑level customization. You may adjust dimensions, surface finish, coating recipes and mechanical features according to your drawing requirements. All finished parts follow world‑class precision standards with reliable lead‑time control. If you need matched infrared windows or other supporting optics, we can deliver full‑set component sourcing.
Pain Points & CTA
Many engineering projects face bottlenecks including unstable delivery cycles, limited custom‑option support, and inconsistent coating reproducibility. Our team provides technical consultation to match lenses to your system constraints. Please send your drawings or requirement list to sales@iroptical.com for quotation and feasibility evaluation.
Technical Parameters
Detailed specifications are not available for this product yet. Please contact the team for application guidance.