63-682 20mm Dia. x 80mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm

This is a 20mm diameter, 80mm focal length double-convex lens, specifically designed for the visible to near-infrared spectrum (VIS-NIR), covering the wavelength range of 400-1000nm. The lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.

The lens is made of the high-quality material, n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including low dispersion and high homogeneity. This makes the lens suitable for a wide range of applications that require high-precision optics.

The lens features a double-convex geometry, with radii of curvature of 82mm for the first surface and -82mm for the second surface. This geometry provides a large numerical aperture, enhancing the lens' light-gathering capability and improving its performance in low-light conditions. The lens has an edge thickness of 2.78mm and a center thickness of 4mm, providing robustness and durability.

The lens is coated with the EDM VIS-NIR 0SP 200-2000 coating on both the front and back surfaces. This coating is designed to enhance the lens' performance in the VIS-NIR spectrum, reducing surface reflections and increasing transmission. The coating also provides excellent environmental stability, making the lens suitable for use in various environmental conditions.