LA1725 N-BK7 Plano-Convex Lens; Dia:2 in; f=400.0 mm Uncoated

The LA1725 N-BK7 Plano-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of precision photonics. This lens, with a diameter of 2 inches, is designed for use in a variety of optical systems, offering a focal length of 400.0 mm and a spherical shape.

The lens is made from N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is characterized by a high refractive index and low dispersion, making it ideal for a wide range of applications. The LA1725 is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, its bare glass surface can still provide high transmission in the visible spectrum.

The geometry of the lens includes a thickness of 3 mm at the edge and 4.6 mm at the center. The inner radius is 0, while the outer radius is also 0, indicating a planoconvex design. This design is often used when a high level of convergence is required, as it provides a large, curved surface for focusing light.

The lens is designed to work with a wavelength of 587.6 nm, which falls within the visible spectrum. This makes it suitable for use in applications such as microscopy, beam shaping, and laser systems.