39-518 50.8mm Dia. ZnSe Aspheric Lens; EFL=50.8mm; NA=0.5 BBAR 8-12µm

This is a high-quality 39-518 ZnSe Aspheric Lens, sourced from the renowned optical components vendor, Edmund Optics. The lens boasts a diameter of 50.8mm and a focal length of 50.8mm, making it a versatile choice for various optical applications.

The lens is crafted from ZnSe (Zinc Selenide) material, identified by the material ID 'znse marple-1964'. This material is known for its excellent transmission properties in the infrared region, making it suitable for applications involving longer wavelengths, such as 10600nm.

The lens features an aspheric design, which is a type of lens that deviates from a simple spherical shape and provides improved optical performance. The geometry of the lens includes an inner radius of 0mm, an outer radius of 0mm, a thickness at the edge of 2.08mm, and a thickness at the center of 6.5mm. The effective focal length (EFL) is 48.1mm, and the numerical aperture (NA) is 0.5.

The lens is coated with BBAR (Broadband Anti-Reflection) coating, specifically designed for the 8-12µm wavelength range. This coating reduces reflection and increases transmission, enhancing the overall performance of the lens.

The lens is currently in stock and available for immediate purchase. For more information, including pricing and availability, please refer to the provided weblink: https://www.edmundoptics.eu/p/508mm-dia-x-508mm-fl-8-12m-ar-coated-znse-aspheric-lens/40578/