AC254-150-A 25.4 mm Dia. N-BK7/SF5 Unmounted Achromatic Doublet; EFL=150mm 400-700nm

The AC254-150-A is a high-quality achromatic doublet lens from Thorlabs, designed to minimize chromatic aberration across the visible spectrum, specifically within the 400-700nm range. This lens, with a diameter of 25.4mm, is a multiplet type, featuring a complex geometry that enhances its optical performance.

The lens's geometry includes an edge thickness of 6.6mm, a center thickness of 5.7mm for the first surface, and 2.2mm for the second surface. The radii of curvature are r1: 91.6mm, r2: -66.7mm, and r3: -197.7mm, contributing to its achromatic properties. The lens is unmounted, providing users with the flexibility to integrate it into their custom optical systems.

The lens is made from two types of glass: n-BK7 from Schott and SF5 from Schott. These materials are chosen for their excellent optical properties and are commonly used in a variety of optical applications. The lens is coated with tho ac400-700-a, a coating that further enhances its performance within the specified wavelength range.

This lens is available from Thorlabs and is currently in stock, making it an ideal choice for users looking for high-quality, achromatic doublet lenses. For more information, users can visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=AC254-150-A.