The 88-883-INK is a Plano-Convex lens, sourced from Edmund Optics, with a diameter of 25.0mm and a focal length of 50.0mm. This lens is made from the high-quality material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties. The lens features a front and back coating of YAG-BBAR, a type of anti-reflection coating designed for wavelengths between 500-1100nm, enhancing its transmission capabilities.
The lens has a center thickness of 4.9mm and an edge thickness of 1.68mm, providing a robust structure. The inner and outer radii are 0mm, indicating a flat surface on the non-curved side of the lens. The curvature of the lens is defined by a radius of 25.84mm on the curved side. The back focal length is 46.75mm, and the effective focal length is 50mm.
This lens is inked, which is a process where a dye is applied to the edge of the lens to indicate its orientation. This feature aids in the correct installation and alignment of the lens within an optical system.