The SLSQ-50-250N is a Plano-Concave Spherical Lens, 50.0 mm in diameter, with a focal length of -250.0 mm, sourced from OptoSigma. This lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock.
The lens's geometry is characterized by a thickness of 5.8 mm at the edge and 3 mm at the center, with an inner radius of 0 mm and an outer radius of 0 mm. The concave surface of the lens has a radius of curvature of -115 mm, resulting in a back focal length of -252.1 mm.
This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While this may result in a slightly lower transmission rate and increased susceptibility to environmental factors, it also means that the lens is more cost-effective and suitable for applications where such enhancements are not necessary.
The SLSQ-50-250N is designed to operate at a wavelength of 546.1 nm, making it suitable for a wide range of applications, including but not limited to, imaging systems, beam shaping, and laser applications. It is currently in stock, as indicated by its valid web link status.