87-946 25mm Dia. x 40mm FL; Coated; Ge Plano-Convex Lens BBAR 3-12µm

The 87-946 is a 25mm diameter, 40mm focal length plano-convex lens, manufactured by Edmund Optics. This lens is made of Germanium burnett, a material known for its excellent transmission properties in the infrared spectrum, making it ideal for applications in this range.

The lens features a broadband anti-reflection (BBAR) coating on both the front and back surfaces, which significantly reduces surface reflections and increases transmission. The coating is specifically designed for the 3-12µm wavelength range, further enhancing its performance in infrared applications.

The geometry of the lens includes a 2.35mm edge thickness and a 3mm center thickness. The inner and outer radii are both zero, indicating a plano surface on one side and a curved surface on the other. The radius of curvature of the curved surface is 120.16mm, and the back focal length is 39.25mm.

This lens is a great option for those seeking a high-performance, infrared-transmitting lens for their optical system. Its plano-convex design, combined with its high-quality coating and Germanium construction, make it a reliable and efficient component for a wide range of applications.