G311351331 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm

The G311351331 is a 31.5 mm diameter double-convex lens, manufactured by Qioptiq Photonics. This lens is made of N-BK7, a popular glass type known for its excellent optical properties, making it suitable for various applications. The lens features an effective focal length (EFL) of 50mm, which is the distance between the lens's secondary principal point and the focal point when the lens is focused at infinity.

The lens's geometry includes a thickness edge of 2.1mm and a thickness center of 7mm, providing robustness and stability. The radii of curvature for the first and second surfaces are 52.33mm and -52.33mm, respectively, indicating a symmetric convex-convex design. The lens is unmounted, offering flexibility for integration into various optical systems.

The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces, enhancing its performance in the visible spectrum, particularly at the wavelength of 587.6nm. The lens's shape is spherical, which is a common and versatile lens shape in optics.

This lens is currently in stock and available for purchase on the Qioptiq Photonics website. Its detailed specifications make it an ideal choice for users seeking a high-quality, double-convex lens for their optical systems.