Thorlabs AC254-075-B-ML Achromatic Doublet Lens

🔬 Overview

• The AC254‑075‑B‑ML is a mounted, Ø 1-inch achromatic doublet lens with a 75 mm focal length, pre‑mounted in an engraved SM1‑threaded housing for easy integration into Thorlabs optomechanics.

• It features a broadband anti‑reflection coating (BBAR) optimized for the 650–1050 nm near‑IR range, delivering average reflectance under 0.5%  

• Designed for best performance at the design wavelengths of approximately 706.5 nm, 855 nm, and 1015 nm, offering minimized chromatic aberration

✅ Key Specifications

🧰 Use Cases & Tips

• Ideal for modular optical setups: collimating diode lasers, building beam expanders, imaging systems, or focusing broadband light near 650–1050 nm.

• Precision mounting via SM1 thread means effortless compatibility with lens tubes, cage systems, or precision optomechanics.

• Because it is cemented, it offers mechanical robustness and lower internal scatter compared to air‑spaced lenses.