47-648-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=275mm VIS 0° 425-675nm

The 47-648-INK is a high-quality 25 mm diameter Achromatic Doublet lens, sourced from Edmund Optics. This lens is specifically designed for use within the visible light spectrum, spanning from 425 to 675 nanometers. The lens boasts an effective focal length (EFL) of 275mm, making it suitable for a wide range of optical applications.

The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass. These materials are renowned for their excellent optical properties, contributing to the lens' high-performance capabilities. The lens features a standard curvature coating on both the front and back surfaces, further enhancing its performance and durability.

The lens' geometry is meticulously designed, with a thickness at the edge of 6.82mm and a center thickness of 5mm. The inner and outer radii are 0mm, and the lens has a radius of curvature of 171.03mm for the first surface and -121.54mm for the second surface. The third surface has a radius of curvature of -352.46mm.

This lens is a multiplet, meaning it is composed of multiple elements. The multiplet design allows for the correction of optical aberrations, resulting in a sharper, clearer image. The 47-648-INK is currently in stock and available for immediate use. For more information, please refer to the vendor's website.