SLSQ-25.4B-30P 25.4 mm Dia. x 31.4 mm FL; Double-Convex Lens Uncoated

The SLSQ-25.4B-30P is a high-quality double-convex lens offered by OptoSigma, a leading vendor in the optical industry. This lens, with a diameter of 25.4 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, meaning it has two spherical surfaces that curve outwards. This design is characterized by its radius of curvature, with the first surface (r1) having a radius of 27.6 mm and the second surface (r2) having a radius of -27.6 mm. This specific curvature allows for effective light bending and focusing, making it ideal for various optical systems.

The lens has a thickness of 1.8 mm at the edge and 8 mm at the center, providing structural integrity while minimizing unnecessary weight. The effective focal length (EFL) of this lens is 31.4 mm, which, combined with its diameter, allows for a decent field of view. The back focal length (BFL) is 28.5 mm, providing sufficient clearance for the insertion of other optical components.

The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. This material is identified as "fused sil mal-1965" in the item data, indicating its specific type and quality. The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, it can be easily customized with various coatings upon request.

This lens is designed to work with a wavelength of 546.1 nm, a common reference wavelength in optical systems. It is important to note that the lens's performance may vary with different wavelengths.