89-290 50mm Dia. x 100mm 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 the 89-290, boasts a diameter of 50mm and a focal length of 100mm, making it suitable for a wide range of optical applications.

The lens is made from the high-grade material, n-BK7 Schott, which is known for its excellent optical properties. This material ensures high transmission and low dispersion, making it ideal for applications that require high image quality and color fidelity.

The 89-290 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 suitable for use in systems that operate in the visible and near-infrared regions of the spectrum.

The lens has a base shape of a circle, with an inner radius of 0 and an outer radius of 0. The thickness at the edge is 3.76mm, while the thickness at the center is 10mm. The effective focal length (EFL) is 100mm, and the back focal length (BFL) is 96.65mm. The first radius of curvature (R1) is 101.63mm, and the second radius of curvature (R2) is -101.63mm.

According to the vendor, this lens is currently in stock, making it readily available for immediate use. With its high-quality materials, advanced coating, and precise specifications, the 89-290 is a reliable and versatile choice for various optical applications.