SLB-15-50N 15.0 mm Dia. x -50.0 mm FL; Plano-Concave Lens Uncoated

The SLB-15-50N is a Plano-Concave Lens with a 15.0 mm diameter and a focal length of -50.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-BK7 Schott material, a popular choice for its high refractive index and low dispersion.

The lens's geometry is characterized by its concave shape, with a thickness edge of 3.1 mm and a thickness center of 2 mm. The inner radius is 0 mm, and the outer radius is also 0 mm, indicating a flat surface on one side. The back focal length (BFL) is -51.3 mm, slightly longer than the specified focal length, which is typical for Plano-Concave lenses.

This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While this may result in a lower transmission rate and a higher susceptibility to environmental factors, it also means that the lens can be easily integrated into various optical systems without the need for additional coating compatibility considerations.

The lens is designed to operate at a wavelength of 546.1 nm, making it suitable for applications that use this specific wavelength, such as certain types of fluorescence microscopy.