LA1254 N-BK7 Plano-Convex Lens; Dia:1 in; f=1500.0 mm Uncoated

The LA1254 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 1 inch, is designed for use in a variety of optical systems, offering a focal length of 1500.0 mm, making it suitable for applications that require long focal lengths.

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 high homogeneity. The lens's geometry is spherical, with a plano-convex shape, meaning one side is flat while the other is curved. This design is commonly used in optical systems due to its ease of manufacturing and alignment.

The lens's geometry includes a thickness of 2 mm at the edge and 2.1 mm at the center. The inner radius is 0, and the outer radius is also 0, indicating a flat surface on one side. The lens's effective focal length (EFL) is 1500.0 mm, and the back focal length (BFL) is 1498.6 mm. The radius of curvature (R1) is 775.2 mm.

Notably, this lens is uncoated. While coatings can be applied to enhance the lens's performance in specific applications, such as reducing reflection or increasing transmission, this lens is designed to provide optimal performance in its uncoated state.