LA1253 N-BK7 Plano-Convex Lens; Dia:25.0 mm; f=200.0 mm Uncoated

The LA1253 N-BK7 Plano-Convex 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 25.0 mm, is designed for use in a variety of optical systems, offering a focal length of 200.0 mm, making it suitable for applications that require moderate magnification.

The lens is made of 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 its high Abbe number, which contributes to its superior optical performance. The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties or protect it from environmental factors.

The geometry of the lens is spherical, with a planar surface on one side and a convex surface on the other. The planar surface, or the 'plano' side, has a thickness of 2.04 mm at the edge and 2.8 mm at the center. The curved surface, or the 'convex' side, has a radius of curvature of 103 mm. The back focal length of the lens is 198.1 mm, and it has no inner or outer radius, indicating a uniform thickness.

This lens is designed to work with a wavelength of 632.8 nm, making it suitable for a wide range of applications, including laser systems and imaging applications. The uncoated nature of the lens means it is best suited for use in controlled environments where there is less risk of damage from dust, moisture, or other environmental factors.