49-764 12.7 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=50.8mm MgF2 400-700nm

The 49-764 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is designed with a base shape of a circular multiplet, featuring a diameter of 12.7 mm and an effective focal length (EFL) of 50.8 mm.

The lens is constructed from two types of materials, N-BAK1 and N-SF15, both from Schott. These materials are known for their excellent optical properties, contributing to the lens's overall performance. The lens's geometry is meticulously designed with specific radii (r1: 33.17 mm, r2: -23.98 mm, r3: -89.03 mm) and thicknesses (edge: 3.16 mm, center: 2.5 mm, center a: 1.5 mm) to ensure optimal light transmission and minimal distortion.

The 49-764 lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces, ensuring excellent transmission rates within the 400-700nm spectral range. This coating also provides protection against environmental factors, enhancing the lens's durability and longevity.

The lens's weblink is valid and in stock, indicating its availability for immediate use. This lens is an excellent choice for various applications requiring high-performance optical elements, especially in the visible light spectrum.