This 12mm diameter x 50mm focal length plano-convex lens, sourced from Edmund Optics, is a versatile optical component designed for use within the visible light spectrum (425-675nm). Its plano-convex geometry, featuring a spherical shape, provides a single refracting surface, making it ideal for a wide range of applications.
The lens is constructed from fused silica (mal-1965), a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, enhancing its performance within the visible light spectrum.
The lens's geometry includes a 2.1mm thickness at the edge and a 2.9mm thickness at the center, with an effective focal length (EFL) of 50mm. The inner radius is 0mm, and the outer radius is also 0mm, indicating a flat surface on the incident side. The lens's radius of curvature (R1) is 22.92mm, and the back focal length (BFL) is 48.01mm.
This lens is currently in stock, according to the vendor's website, making it a readily available option for your optical system needs. The detailed specifications and high-quality construction make this lens a reliable choice for applications within the specified wavelength range.