LC1582 N-BK7 Plano-Concave Lens; Dia:1 in; f=-75.0 mm Uncoated

The LC1582 N-BK7 Plano-Concave Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of optical equipment. This lens, with a diameter of 1 inch, is designed for use in a variety of optical systems, offering a focal length of -75.0 mm, making it suitable for applications that require a concave lens.

The lens is made from N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is often used in high-precision optical systems due to its low coefficient of thermal expansion and high homogeneity. The lens's geometry includes a planar surface and a concave surface with a radius of curvature of -38.6 mm. The lens's thickness varies from 3.5 mm at the center to 5.6 mm at the edge.

The lens is uncoated, meaning it does not have any additional layers applied to its surfaces to alter its optical properties. This can be beneficial in applications where the user desires to apply their own coatings or where the uncoated surface is suitable for the application's requirements.

The lens's effective focal length (EFL) is -75.0 mm, and its back focal length (BFL) is -77.3 mm. The lens's inner and outer radii are 0 mm, indicating that the lens's edges are straight and not curved.

This lens is designed to work with light of a wavelength of 587.6 nm, making it suitable for use in a wide range of optical systems. The lens's spherical shape ensures that light passing through it is focused to a single point, making it ideal for use in imaging systems, beam shaping, and other applications where precise light control is required.