The 84-213 is a Plano-Convex spherical lens, part of the extensive catalog of optical elements offered by Edmund Optics. This lens boasts a 6.0mm diameter and a focal length of 30.0mm, designed for use with a wavelength of 1550nm.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The base shape is circular, and the lens features a planar surface on one side and a convex surface on the other. The edge thickness is 1.01mm, while the center thickness is 1.3mm, providing a balanced structure for efficient light transmission.
The lens is coated with Edmund Optics' Las V-Coat 1550, a specialized coating designed for laser applications at 1550nm. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it ideal for use in high-power laser systems.
The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm, indicating a simple, straightforward design. The effective focal length (EFL) is 30mm, a common choice for many optical applications due to its versatility.