G311335322 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=130mm 450-700nm

This is a high-quality double-convex lens from Qioptiq Photonics, designed for use in the visible light spectrum, specifically optimized for wavelengths between 450 and 700nm. The lens has a diameter of 31.5mm and an effective focal length (EFL) of 130mm, making it suitable for a wide range of optical applications.

The lens is made from N-BK7, a popular borosilicate glass known for its excellent optical properties. This material has a refractive index that is highly consistent across the visible light spectrum, ensuring minimal chromatic aberration. The lens also features a double-convex geometry, with radii of curvature of 134.325mm and -134.325mm for the front and back surfaces, respectively. This geometry provides a high degree of focusing power and a wide field of view.

The lens has a thickness of 2.2mm at the edge and 4mm at the center, providing robustness and stability. The front and back surfaces of the lens are coated with Qioptiq's BBAR ARB2VISNBK7 coating, which is designed to reduce surface reflections and improve transmission in the visible light spectrum.

This lens is currently in stock and available for purchase on the Qioptiq Photonics website. With its high-quality materials, precise geometry, and advanced coatings, this lens is an excellent choice for a wide range of optical applications in the visible light spectrum.