89-122 4.5mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

The 89-122 is a high-quality double-convex lens, boasting a 4.5mm diameter and a focal length of 4.5mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available in stock for immediate use. The lens is designed for use within the visible light spectrum, specifically between 350-700nm, making it suitable for a wide range of applications.

The lens is constructed from n-lasf44 Schott, a material known for its excellent optical properties. The front and back surfaces of the lens are coated with edm vis ext, a coating that enhances the lens's performance within the visible light spectrum. This coating aids in reducing reflection and increasing transmission, thereby improving the overall efficiency and quality of the optical system in which the lens is used.

The lens geometry is characterized by its spherical shape, with a radius of curvature of 6.58mm for both the first and second surfaces. The lens has an outer radius of 0mm and an inner radius of 0mm, indicating a uniform thickness. The edge thickness of the lens is 1.8mm, while the center thickness is 2.6mm. The back focal length of the lens is 3.7mm, and the effective focal length is 4.5mm.