SLB-25.4-90N 25.4 mm Dia. x -90.0 mm FL; Plano-Concave Lens Uncoated

The SLB-25.4-90N is a Plano-Concave Lens with a 25.4 mm diameter and a focal length of -90.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is uncoated. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.

The lens's geometry is characterized by a thickness edge of 3.8 mm and a thickness center 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 radius of curvature (R1) is -46.71 mm, and the back focal length (BFL) is -91.3 mm.

This lens is designed for use in the visible light spectrum, specifically at a wavelength of 546.1 nm. It is a spherical lens, meaning it has the same curvature throughout its surface. The lens's base shape is circular, making it suitable for a wide range of optical applications.

Please note that the lens is uncoated, which means it does not have any additional layers to enhance its optical properties or protect it from environmental factors. This may affect its performance in certain applications, so it's essential to consider this factor when making your selection.

The lens is currently in stock and can be purchased directly from the vendor's website. For more information, please refer to the provided weblink.