The SLB-50.8-500P is a Plano-Convex lens with a diameter of 50.8 mm and a focal length of 500.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence.
The lens geometry is characterized by its spherical shape, with a center thickness of 4.2 mm and an edge thickness of 3 mm. The inner radius is 0 mm, and the outer radius is also 0 mm, indicating a plano surface on one side and a curved surface on the other. The radius of curvature of the curved surface is 259.5 mm, and the back focal length is 497.2 mm.
The lens is uncoated, which means it does not have any anti-reflective or other coatings. This may result in higher reflective losses, but it also means that the lens can be used in a wider range of wavelengths without the risk of coating damage. The lens is designed to operate at a wavelength of 546.1 nm.
The item data indicates that this lens is in stock, and the web links provided lead to the product page on the OptoSigma website, where more information and specifications can be found.