The Ø1 Achromatic Doublet, F = 40 mm, ARC: 400 - 700 nm (Part Number: AC254-040-A) manufactured by THORLABS INC is a high-quality lens for precise light focusing and collimation. With an achromatic design and a focal length of 40 mm, this doublet lens ensures minimal chromatic aberration and accurate light manipulation. Its advanced coating technology and durable construction make it suitable for various optical applications. Achieve precise light focusing with this high-performance lens.