The AC254-100-AB-ML is a mounted achromatic doublet lens, available from Thorlabs, with a catalog number AC254-100-AB-ML. This lens is currently in stock and can be found on their official website at https://www.thorlabs.com/thorproduct.cfm?partnumber=AC254-100-AB-ML.
This lens falls under the category of 'Lens' and the subtype 'Multiplets'. Its base shape is circular, and it features a diameter of 25.4 mm. The edge thickness measures 10.5 mm, while the inner and outer radii are 0 mm each. The lens's first radius of curvature (r1) is 92.4 mm, the second radius (r2) is -48.2 mm, and the third radius (r3) is -152.8 mm. The center thicknesses are 8 mm and 4 mm for the first and second centers, respectively.
The lens is made from two types of materials: n-lak22 schott and n-sf10 schott. Both the front and back surfaces are coated with tho ab achromatic ar, ensuring optimal performance and durability. The lens's shape is a multiplet, and it has an effective focal length (EFL) of 100 mm, suitable for use in the 400-1100 nm wavelength range.