The SLB-50.8B-50NIR2 is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, with a diameter of 50.8 mm, is designed for use in the infrared spectrum, specifically between 750 and 1550 nanometers.
The lens features a base shape of a circle and is constructed with a spherical geometry. The first radius of curvature (r1) is -51.9 mm, while the second radius (r2) is 51.9 mm, indicating the double-concave nature of the lens. The effective focal length (EFL) is -49.5 mm, and the center thickness is 3 mm, while the edge thickness is 16.3 mm.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The lens is coated with Opt IR2, a coating specifically designed for the infrared spectrum, enhancing its performance in this range.
This lens is in stock and available for immediate purchase, as indicated by its web link status. For more detailed information or to make a purchase, users can visit the provided web link.