SLB-25.4-60N 25.4 mm Dia. x -60.0 mm FL; Plano-Concave Lens Uncoated

The SLB-25.4-60N is a Plano-Concave Lens with a diameter of 25.4 mm and a focal length of -60.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott material, a high-quality glass known for its excellent optical properties.

The lens geometry is characterized by its concave shape, with a thickness edge of 4.7 mm and a thickness center of 2 mm. The inner and outer radii are both 0 mm, indicating a uniform curvature throughout the lens. The back focal length (BFL) is -61.3 mm, slightly longer than the specified focal length due to the lens's concave design.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. This can be beneficial in certain applications where the natural properties of the glass are desired. However, it's important to note that uncoated lenses can be more susceptible to environmental factors such as dust and moisture.

The lens is designed to operate at a wavelength of 546.1 nm, making it suitable for a wide range of applications in the visible light spectrum. Its spherical shape ensures consistent optical performance across the entire surface of the lens.