G311339329 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=40mm 1064nm

This is a high-quality double-convex lens from Qioptiq Photonics, designed for precision optical applications. The lens has a diameter of 31.5 mm and an effective focal length (EFL) of 40 mm at a wavelength of 1064 nm.

The lens is made from N-BK7, a popular optical glass known for its excellent optical properties. This material is characterized by a high refractive index and low dispersion, making it ideal for a wide range of applications.

The lens features a double-convex geometry, with both surfaces curved outwards. The first surface has a radius of curvature of 41.867 mm, while the second surface has a radius of curvature of -41.867 mm. This geometry provides a strong focusing power, making the lens suitable for use in imaging systems, beam shaping, and other applications where a tight focus is required.

The lens has a thickness of 2.1 mm at the edge and 8.3 mm at the center. This asymmetrical thickness distribution is designed to minimize optical aberrations and improve image quality.

The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces. This coating reduces reflection and increases transmission, enhancing the lens's performance in high-power laser applications.

The lens is unmounted, providing users with the flexibility to integrate it into their systems in the most suitable way. It is currently in stock and can be purchased directly from the Qioptiq Photonics website.