89-231 10mm Dia. x 15mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as 89-231, boasts a 10mm diameter and a focal length of 15mm, making it suitable for a wide range of applications.

The lens is made from the high-quality material n-BK7 Schott, a borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This material is widely used in various optical applications due to its excellent transmittance in the visible and near-infrared regions.

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 over a broad spectrum, specifically 500-1100nm. This makes the lens ideal for use in applications where high transmission and low loss are critical, such as in laser systems, optical imaging, and machine vision.

The geometry of the lens includes an edge thickness of 1.77mm and a center thickness of 3.5mm. The inner and outer radii are 0mm, and the back focal length is 13.8mm. The lens's base shape is circular, and its type is spherical, which is the most common and simplest type of lens.