LC7421-E3 25.4 mm Dia. ZnSe Plano-Concave Lens; EFL=-75mm 7-12µm

The LC7421-E3 is a 25.4 mm diameter Plano-Concave Spherical Lens, designed for use in the infrared spectrum with a wavelength of 10600 nm. This lens is sourced from Thorlabs, a leading global manufacturer of photonics components. The lens features a concave shape with a center thickness of 2 mm and an effective focal length (EFL) of -75 mm, making it suitable for a variety of applications that require light convergence or divergence.

The lens is constructed from ZnSe (Zinc Selenide), a material known for its excellent optical properties, including high transparency in the infrared spectrum. The ZnSe material is identified as "znse connolly" in the item data, indicating a specific grade or treatment. The lens is coated with a broadband anti-reflection coating, denoted as "tho e3znsearc7000120", which is applied to both the front and back surfaces to enhance transmission and reduce unwanted reflections.

The lens geometry includes an inner radius of 0 mm and an outer radius of 0 mm, indicating a simple, uniform curvature. The lens is designed for use with a 7-12 µm wavelength range, making it suitable for a variety of mid-infrared applications.

According to the vendor's website, the lens is currently in stock, ensuring quick delivery for your optical system needs. For more detailed specifications and purchasing information, please refer to the vendor's website using the provided weblink.