SLSQ-15B-25P 15.0 mm Dia. x 25.8 mm FL; Double-Convex Lens Uncoated

The SLSQ-15B-25P is a high-quality double-convex lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a diameter of 15.0 mm, is designed for use in a wide range of optical applications, thanks to its precise geometry and material properties.

The lens features a double-convex shape, characterized by two spherical surfaces that curve outwards. This design allows for a focal length of 25.8 mm, making it suitable for applications that require a longer focal length. The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock.

The geometry of the lens includes an edge thickness of 2 mm and a center thickness of 4.5 mm. This ensures the lens's structural integrity while minimizing its impact on the overall optical system. The lens's effective focal length (EFL) is 25.8 mm, while the back focal length (BFL) is 24.2 mm. The radii of curvature for the first and second surfaces are 23 mm and -23 mm, respectively.

The lens is uncoated, which means it does not have any anti-reflective or other coatings. While this may result in higher reflective losses, it also means the lens is more versatile and can be used in a wider range of applications without the need for specialized coatings.