The AC254-075-B-ML is a multiplet lens, specifically an achromatic doublet, sourced from Thorlabs. This lens is designed for use within the spectral range of 650-1050nm, making it suitable for a variety of applications within this range.
The lens features a base shape of a circle, with a diameter of 25.4mm. The edge thickness of the lens is 4.5mm, while the inner and outer radii are both 0mm. The lens has three distinct radii (r1, r2, r3) of 36.9mm, -42.17mm, and 417.8mm respectively, and the center thicknesses are 5mm and 1.6mm.
The lens is composed of two types of Schott glass, N-BAF10 and N-SF6HT, each with its own unique refractive index and dispersion properties. These materials have been carefully selected to minimize chromatic aberration, a common issue in optical systems.
The lens is coated with Thorlabs' proprietary anti-reflection coating, AC650-1050-B, on both the front and back surfaces. This coating is designed to reduce surface reflections and increase transmission within the specified spectral range.
In terms of availability, the vendor indicates that this item is currently in stock, and the weblink provided leads directly to the product page on Thorlabs' website for easy access and further information.