The 88-908-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 30.0mm and a focal length of 75.0mm, making it suitable for a wide range of optical applications.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high homogeneity. The front and back surfaces of the lens are coated with YAG-BBAR, a type of anti-reflection coating that operates within the 500-1100nm wavelength range. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission.
The lens's geometry is another notable feature. It has an edge thickness of 3.08mm and a center thickness of 6.1mm. The inner and outer radii are 0mm, and the lens's radius of curvature (R1) is 38.76mm. The back focal length (BFL) is 70.95mm, and the effective focal length (EFL) is 75mm.