The AC254-400-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 diameter of 25.4mm, providing a substantial surface area for light transmission.
The lens's geometry is intricately designed with a range of radii and thicknesses to optimize its optical performance. The edge thickness is 4.8mm, while the inner and outer radii are both 0mm. The r1, r2, and r3 radii are 83.6mm, -106.41mm, and 181.55mm respectively, contributing to the lens's complex optical design. The center thicknesses are 3.5mm and 1.8mm for the first and second centers respectively.
The lens is composed of two materials: SF5 from Schott and N-SF6HT from Schott. These materials have been carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with tho ac650-1050-b on both the front and back surfaces, further enhancing its optical capabilities within the specified spectral range.