LE7185-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=25.4mm 8-12µm

The LE7185-F is a 25.4 mm diameter Spherical Lens with a Positive Meniscus shape, sourced from Thorlabs. This lens is designed for use in the 8-12 µm wavelength range, making it suitable for a variety of mid-infrared applications.

The lens features an effective focal length (EFL) of 25.4 mm, which is also its diameter. The base shape is circular, and the lens has a thickness of 2 mm at the edge and 4.7 mm at the center. The first radius of curvature (R1) is 15.5 mm, while the second radius (R2) is 22.6 mm, resulting in a back focal length (BFL) of 20.9 mm.

The LE7185-F is made from ZnSe (Zinc Selenide) material, specifically the ZnSe CONNOLLY variant. This material is known for its excellent transmission in the infrared region, making it a popular choice for IR applications. The lens is coated with THo ZnSe-ARCED 8-12, a specialized anti-reflective coating that further enhances its performance in the 8-12 µm range.

This lens is currently in stock and available for immediate shipping. For more information, including detailed specifications and purchasing options, please refer to the vendor's website through the provided weblink.