LA1401 N-BK7 Plano-Convex Lens; Dia:2 in; f=60.0 mm Uncoated

The LA1401 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 and a focal length of 60.0 mm, is designed for use in a wide range of optical systems, including imaging, beam shaping, and laser applications.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. This material, also known as BK7, is a crown glass with a low refractive index and low dispersion, making it ideal for a wide range of applications. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, uncoated lenses can still provide high-quality performance in many applications.

The geometry of the lens is spherical, with a planar surface on one side and a convex surface on the other. The planar surface has a thickness of 3 mm at the edge and 16.3 mm at the center, while the curvature of the convex surface has a radius of 30.9 mm. The back focal length of the lens is 49.1 mm, and its effective focal length is 60 mm.

This lens is designed to work at a wavelength of 587.6 nm, which is in the yellow-green part of the visible spectrum. It is important to note that the performance of the lens can vary depending on the wavelength of the light it is used with. Therefore, it is crucial to ensure that the lens is suitable for the specific wavelength of light in your application.