89-226 9mm Dia. x 27mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

The 89-226 is a high-quality double-convex lens, sourced from the reputable optical vendor, Edmund Optics. This lens boasts a 9mm diameter and a focal length of 27mm, making it suitable for a wide range of optical applications.

The lens is crafted from Schott's n-BK7 glass, a popular material due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 27.43mm and -27.43mm for the first and second surfaces, respectively. This geometry results in a back focal length of 26.08mm and an effective focal length of 27mm.

The 89-226 lens is coated with YAG-BBAR, a broadband anti-reflection coating that enhances its performance in the 500-1100nm wavelength range. This coating reduces surface reflections, thereby improving transmission and image quality. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance from all angles.

In terms of dimensions, the lens has a thickness of 2mm at the edge and 2.74mm at the center. The inner and outer radii are both 0mm, indicating a uniform curvature throughout the lens.

The lens is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. With its superior optical properties and robust construction, the 89-226 is an excellent choice for various optical applications.