Crafted from premium JGS-1 quartz glass, this double convex lens offers superior optical clarity and durability. With a diameter of 40mm and a focal length of 25mm, this lens is ideal for various optical applications including U-V and visible light analysis. Achieves exceptional surface accuracy of /4@632.8nm, ensuring reliable performance in precision optical setups. Features a radius of curvature of 23mm and an edge thickness of 2.5mm, devised for optimal light transmission and minimal distortion. Compatible with U-V visible spectrophotometers, making it an essential component for laboratory and research environments.