SLSQ-25.4B-50P 25.4 mm Dia. x 51.0 mm FL; Double-Convex Lens Uncoated

OptoSigma's SLSQ-25.4B-50P is a high-quality, fused silica biconvex lens designed for a wide range of optical applications. This lens, with a diameter of 25.4 mm and a focal length of 51.0 mm, is uncoated, allowing users to apply their preferred coating based on their specific application requirements.

The lens features a base shape of a circle and is designed with a double-convex geometry, characterized by two spherical surfaces that curve outwards. The first surface, or the front surface, has a radius of curvature (R1) of 46 mm, while the second surface, or the back surface, has an R2 of -46 mm. This geometry results in an effective focal length (EFL) of 51 mm and a back focal length (BFL) of 49.1 mm.

The lens is made from high-quality fused silica (mal-1965), a material known for its excellent optical properties, including low auto-fluorescence, high transmittance across a wide spectral range, and high resistance to thermal shock and chemical etching. The lens has a thickness of 1.9 mm at the edge and 5.5 mm at the center, providing robustness and durability.

The SLSQ-25.4B-50P is currently in stock and available for immediate purchase through the OptoSigma website. With its superior optical performance and versatile design, this lens is an excellent choice for various applications, including imaging, beam shaping, and laser systems.