11-411 50.8mm Dia. x 150mm FL; Coated; ZnSe Plano-Convex Lens BBAR 8-12µm

The 11-411 is a Plano-Convex Spherical Lens, a type of spherical lens characterized by its single curved surface and a flat surface. This lens, with a diameter of 50.8mm and a focal length of 150mm, is designed to focus or disperse light beams in a variety of applications.

The lens is made of ZnSe (Zinc Selenide), a material known for its excellent optical properties, including high transparency in the infrared region, making it suitable for applications in this spectrum. The ZnSe material is sourced from Edmund Optics, a reputable vendor in the optical industry.

The lens features a Broadband Anti-Reflection (BBAR) coating on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission over a broad spectrum, specifically from 8 to 12µm. The coating enhances the lens's performance in environments where high transmission and low reflection are critical.

The geometry of the lens includes a thickness of 2.46mm at the edge and 4mm at the center. The inner and outer radii are 0mm, indicating a plano surface on one side and a curved surface on the other. The effective focal length (EFL) is 150mm.