The SLSQ-50.8B-300P is a high-quality, double-convex lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a diameter of 50.8 mm and a focal length of 300.9 mm, is designed for use in a wide range of optical applications.
The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 276 mm and -276 mm for the first and second surfaces, respectively. This geometry results in a back focal length of 298.8 mm.
The lens has a thickness of 3 mm at the edge and 5.3 mm at the center. The effective focal length (EFL) of the lens is 300.9 mm. Notably, the lens is uncoated, which means it does not have any anti-reflective or other coatings. This may be suitable for applications where such coatings are not required or desirable.
According to the vendor's website, the lens is currently in stock, indicating its availability for immediate purchase and use. The website also provides further technical details and specifications, as well as options for customization if needed.