The 11-706 is a 25.4mm diameter, 500mm focal length plano-convex lens designed for use in the infrared spectrum. This lens is sourced from Edmund Optics and is currently in stock, as indicated by its weblink status.
The lens's geometry is characterized by a 1.25mm thickness at the edge and a 1.6mm thickness at the center. The lens's effective focal length (EFL) is 500mm, and its radius of curvature (R1) is 229.5mm. The back focal length (BFL) is 499.45mm, and both the inner and outer radii are 0mm, indicating a planar surface on the opposite side of the convex surface.
The lens is made from UVFS-MAL 1965, a material specifically designed for use in the ultraviolet, visible, and shortwave infrared spectra. The lens is uncoated, which may affect its performance in high-intensity or high-precision applications. The lens's central wavelength is 587.6nm, which is near the center of the visible light spectrum.