SLSQ-50.8-200N 50.8 mm Dia. x -200.0 mm FL; Plano-Concave Lens Uncoated

This is the SLSQ-50.8-200N, a Plano-Concave Lens with a diameter of 50.8 mm and a focal length of -200.0 mm. The lens is sourced from OptoSigma, a renowned vendor in the optical industry. It is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock.

The lens geometry is characterized by its base shape, which is circular, and its spherical shape. The thickness at the edge of the lens is 6.6 mm, while the thickness at the center is 3 mm. The inner and outer radii are both 0 mm, indicating a uniform curvature. The back focal length is -202.1 mm, slightly longer than the specified focal length due to the thickness of the lens.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. This may result in a higher risk of surface damage and lower light transmission compared to coated lenses. However, uncoated lenses are often preferred for applications where cost and simplicity are prioritized.

The SLSQ-50.8-200N is designed for use at a wavelength of 546.1 nm. It is in stock and ready for immediate use. For more information, please refer to the vendor's website, where you can find detailed specifications and purchasing options.