63-551 20mm Dia. x 25mm FL; Uncoated; Double-Convex Lens

The 63-551 is a 20mm diameter, double-convex lens with a focal length of 25mm, sourced from the renowned optical vendor, Edmund Optics. This lens, identified by its spherical shape and circular base, is a part of the Spherical Lens (Convex-Convex) sub-type, designed to bend light rays and focus them to a single point.

The lens's geometry is characterized by its 20mm diameter, 1.35mm edge thickness, and 4mm center thickness. The front and back radii of curvature are 38.34mm and -38.34mm respectively, contributing to a back focal length of 23.86mm. The lens is made from n-sf11 Schott, a high-index material often used in a variety of optical applications.

The lens is uncoated, meaning it does not have any anti-reflective or other surface treatments. This may result in higher reflectivity, particularly at the lens's air-glass interfaces, and could affect the overall transmission and image quality. However, uncoated lenses are often preferred in specific applications where the introduction of additional layers may interfere with the desired optical properties.

The lens is designed to operate at a wavelength of 587.6nm, making it suitable for applications that require high performance in the visible spectrum. This lens is currently in stock, as indicated by its weblink status, and more information can be found on the Edmund Optics website.