G311351000 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm Uncoated

The G311351000 is a 31.5 mm diameter double-convex lens, manufactured by Qioptiq Photonics, a renowned provider of precision optics. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, making it suitable for a wide range of applications.

The lens features a large diameter of 31.5 mm, providing a substantial surface area for light transmission. It has a double-convex geometry, meaning it has two spherical surfaces that curve outwards, which is ideal for focusing or magnifying light. The lens's thickness at the edge is 2.1 mm, while its center thickness is 7 mm, contributing to its robustness and durability.

The effective focal length (EFL) of this lens is 50 mm, which is the distance from the lens's center to the point where it focuses light. This makes it a medium telephoto lens, ideal for applications that require moderate magnification.

The lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in a slightly lower transmission rate and increased susceptibility to environmental factors, it also means the lens is more cost-effective and easier to clean.

This lens is currently in stock and available for purchase on the Qioptiq Photonics website. For more information, you can refer to the provided weblink.