40570 38.1 mm Dia. x 150 mm FL; Uncoated; Plano-Convex Lens

The 40570 is a Plano-Convex Lens with a diameter of 38.1 mm and a focal length of 150 mm, sourced from the reputable vendor MKS/Newport. This lens is uncoated, which means it does not have any additional layers to alter or enhance its optical properties. The lens is made of N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties and wide transparency range.

The lens's geometry is characterized by its plano-convex shape, where one side is flat (plano) and the other side is curved (convex). The curvature of the convex side has a radius of 77.505 mm, and the lens's thickness at the edge is 3 mm. The back focal length (BFL) and the effective focal length (EFL) are both 77.505 mm. The lens's inner radius is 0, indicating that it is a circular lens without any central aperture or hole.

This lens is designed to work with a wavelength of 589 nm, making it suitable for applications that use this specific wavelength. The lens's natural (uncoated) state means it does not have any specific anti-reflective or other coatings, making it ideal for applications where such coatings may interfere with the desired optical properties.