AC254-050-AB 25.4 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=50mm 400-1100nm

The AC254-050-AB is a 25.4 mm diameter achromatic doublet lens, designed and manufactured by Thorlabs. This unmounted lens is part of Thorlabs' extensive catalog of optical elements, and it is specifically designed for use in the 400-1100nm wavelength range.

The lens features a complex geometry, with a central thickness of 9mm and edge thickness of 9.5mm. The first and second radii of curvature are 34.9mm and -28.8mm respectively, while the third radius of curvature is -137.5mm. The lens is made from two types of Schott glass, N-BAF10 and N-SF6, which are renowned for their optical quality and versatility.

Both the front and back surfaces of the lens are coated with Thorlabs' AB ACHROMATIC AR coating, which is designed to reduce reflection and improve transmission over a broad spectrum. This coating is particularly useful in applications where high transmission and low loss are critical.

The lens is a multiplet, meaning it is composed of multiple elements. This design allows for the correction of chromatic aberrations, making the lens suitable for a wide range of applications, including imaging, beam shaping, and spectroscopy.

The lens is currently in stock and available for immediate shipping. For more information, including detailed specifications and pricing, please refer to the product webpage on Thorlabs' website.