LB1374-C N-BK7 Bi-Convex Lens; Dia:2 in; f=150.0 mm ARC 1050-1700nm

The LB1374-C is a high-quality bi-convex lens, designed and manufactured by Thorlabs, a leading global supplier of photonics equipment. This lens boasts a diameter of 2 inches, offering a substantial surface area for light transmission. The lens's base shape is circular, contributing to its robust construction and versatile application.

The lens's geometry is characterized by its dual convex shape, with radii of curvature (r1 and r2) of 153.3 mm each. This design results in an effective focal length (efl) of 60 mm, making it suitable for a wide range of optical applications. The lens's thickness varies from 3 mm at the edge to 2.2 mm at the center, providing a balanced structure that ensures optimal performance.

The lens is crafted from N-BK7, a popular glass type in the optical industry due to its excellent optical properties. This material, also known as Schott glass, offers a high refractive index and low dispersion, making it ideal for applications requiring high-precision imaging or light manipulation.

The LB1374-C is coated with a broadband anti-reflection coating, suitable for wavelengths between 1050 nm and 1700 nm. This coating reduces surface reflections, enhancing light transmission and improving overall system performance.