L-BCC118 50 mm Dia. Double-Concave Lens; EFL=-1000mm Uncoated

The L-BCC118 is a 50 mm diameter Double-Concave Spherical Lens, sourced from the renowned optical vendor, Ross Optical. This lens is designed with a base shape of a circle and features a unique double-concave geometry, characterized by its two concave surfaces.

The lens's geometry is meticulously crafted with an inner radius of 0 and an outer radius of 0, providing a distinct curvature that sets it apart. The thickness at the edge is 3.1 mm, while the center thickness measures 2.5 mm, offering a robust structure that ensures optimal performance.

The L-BCC118 boasts an effective focal length (EFL) of -1000mm, making it a high-powered negative lens. This feature is particularly useful in applications where a reduced image or magnification is desired. The lens is fabricated from the esteemed N-BK7 Schott material, a borosilicate glass known for its excellent optical properties, including low dispersion and high transmission across a wide spectrum.

This lens is uncoated, offering a bare, unaltered glass surface. While coatings can enhance certain optical properties, such as reducing reflection or increasing transmission, an uncoated lens provides a cost-effective solution for applications where such enhancements are not necessary.

The L-BCC118 is designed for use at a wavelength of 587.6 nm, making it suitable for a wide range of applications in the visible light spectrum. It is available for purchase through the Ross Optical website, where it is currently listed as in stock.