SLSQ-25-70N 25.0 mm Dia. x -70.0 mm FL; Plano-Concave Lens Uncoated

The SLSQ-25-70N is a Plano-Concave Spherical Lens, uncoated, with a diameter of 25.0 mm and a focal length of -70.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The 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 its edge thickness of 4.5 mm and center thickness of 2 mm. The inner and outer radii are both 0 mm, indicating a flat surface on one side and a concave surface on the other. The back focal length (BFL) is -71.4 mm, slightly longer than the effective focal length (EFL) of -70.0 mm.

The lens is designed to operate at a wavelength of 546.1 nm. It is uncoated, meaning it does not have any additional layers to enhance its optical properties. This may result in a higher risk of reflection and lower transmission compared to coated lenses. However, uncoated lenses are often preferred for applications where cost, durability, or specific spectral requirements are a priority.

The lens data is currently in stock and available for immediate purchase. For more information, including pricing and delivery details, please refer to the vendor's website using the provided weblink.