69-658 50mm Dia. x 50mm FL; Coated; Ge Plano-Convex Lens BBAR 3-5µm

The 69-658 is a 50mm diameter, 50mm focal length plano-convex lens, designed for use in the infrared spectrum with a wavelength of 10600nm. This lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.

The lens is made from Germanium burnett, a material with excellent transmission properties in the infrared range. It features a broadband anti-reflection (BBAR) coating on both the front and back surfaces, which significantly reduces surface reflections and increases transmission. This coating is specifically designed for the 3-5µm wavelength range, further optimizing the lens for infrared applications.

The lens has a spherical shape, with a 150.21mm radius of curvature on the convex side. The center thickness is 5mm, while the edge thickness is 2.9mm. The back focal length (BFL) is 48.76mm, and the effective focal length (EFL) is 50mm. The lens does not have any inner or outer radii, indicating a simple, uniform curvature.

This lens is an excellent choice for a wide range of infrared applications, thanks to its high transmission, broadband anti-reflection coating, and precise optical specifications. It is currently in stock, as indicated by its valid weblink status. For more information, please refer to the vendor's website.