Zinc Selenide(ZnSe) Double‑Convex(DCX) Lenses, Uncoated/Double-Sided-AR@8~12 μm
Zinc Selenide (ZnSe) Double‑Convex lenses feature a positive focal length and two symmetric convex surfaces designed to focus collimated light to a precise point. Constructed from CVD laser‑grade ZnSe and optimized for 10.6 μm operation, these lenses are ideal for finite conjugate imaging, relay imaging, and high‑performance infrared optical systems. With tight tolerances and 60‑40 surface quality, they deliver stable imaging performance while minimizing aberrations. Offered in standard diameters from 12.7 mm to 25.4 mm with a range of focal lengths, Tuniu Optics provides both uncoated and double‑sided broadband AR coated versions (8–12 μm) to maximize transmission for your infrared applications.
Notice: Zinc Selenide is a hazardous substance. Please wear gloves during handling to avoid direct skin contact, and wash your hands thoroughly after use. Due to the low hardness of Zinc Selenide, extra care and caution are required during processing and handling.
Parameters
| Material | CVD LaserGrade ZnSe(ZnSe) |
| Design Wavelength | 10.6 μm |
| Diameter Tolerance | + 0.0/ -0.1 mm |
| Center Thickness Tolerance | ± 0.2 mm |
| Focal Length Tolerance(EFL) | ± 1% |
| Centering Tolerance | < 3 arcmin |
| Surface Quality | 60-40 |
| Bevel | 0.2 mm X 45° |
| Coating | Uncoated, Ravg < 1.5%@8~12 μm |
Model
| Dia., mm | Coating | EFL, mm |
| 12.7 | Uncoated/Double-Sided-AR@8~12 μm | 15.00/20.00/40.00 |
| 25.4 | Uncoated/Double-Sided-AR@8~12 μm | 25.40/50.00/75.00/100.00/200.00 |