G311325331 25.4 mm Dia. N-BK7 Double-Convex Lens; EFL=150mm

The G311325331 is a 25.4 mm diameter Double-Convex lens, sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics. This lens is designed with a high degree of symmetry, featuring two convex surfaces that are equidistant from the lens's center. This design, often referred to as a biconvex lens, is characterized by its ability to both converge and diverge light, making it a versatile component in various optical systems.

The lens's geometry is defined by its diameter, thickness, and effective focal length (EFL). The diameter measures 25.4 mm, while the thickness at the edge is 6 mm and 7 mm at the center. The EFL, a critical parameter in lens selection, is 150 mm. This EFL indicates that the lens will produce a virtual image that is 150 mm away from the lens when an object is placed at infinity.

The lens is crafted from N-BK7, a high-quality glass material known for its excellent optical properties. This material, often used in high-precision applications, ensures minimal optical aberrations and distortions.

The G311325331 lens features a broadband anti-reflection coating on both the front and back surfaces. This coating, designated as 'qio al ralvis aoi 45', is designed to reduce surface reflections and increase transmission across a wide spectral range, enhancing the lens's performance in various applications.