The 88-816 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a 9.0mm diameter and a focal length of 36.0mm, making it suitable for a variety of optical applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a YAG-BBAR coating on both the front and back surfaces. This coating, which stands for Yttrium Aluminum Garnet - Broad Band Anti-Reflection, is designed to reduce reflection and increase transmission across a broad spectrum, specifically from 500 to 1100nm. This makes the lens particularly useful in applications that require high transmission and low reflection, such as laser systems, imaging systems, and optical metrology.
The geometry of the lens includes a thickness of 1.75mm at the edge and 2.3mm at the center. The inner radius is 0mm, and the outer radius is also 0mm, indicating a flat surface on the uncoated side of the lens. The effective focal length (EFL) is 36.0mm, and the back focal length (BFL) is 34.48mm.