This is the SLSQ-50.8-100P, a Plano-Convex Lens with a diameter of 50.8 mm and a focal length of 100.0 mm, sourced from OptoSigma. The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock.
The lens geometry is characterized by a large diameter and a significant difference between the edge thickness (2.8 mm) and the center thickness (10.4 mm). This design, combined with the lens's spherical shape, ensures a wide field of view and low distortion. The base shape is circular, adding to the lens's versatility in various optical systems.
The SLSQ-50.8-100P is uncoated, meaning it does not have any anti-reflective or other surface coatings. While this may result in higher reflective losses, it also means that the lens is less susceptible to damage from environmental factors or mishandling.
The lens is designed to operate at a wavelength of 546.1 nm, making it suitable for applications in the visible light spectrum. It is currently in stock and available for immediate purchase, as indicated by its valid web link status.