LA1301 N-BK7 Plano-Convex Lens; Dia:2 in; f=250.0 mm Uncoated

The LA1301 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 2 inches, is designed for use in a variety of optical systems, offering a focal length of 250.0 mm.

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 applications due to its low coefficient of thermal expansion and high homogeneity. The plano-convex design of the lens, where one side is flat and the other is curved, allows for efficient light transmission and focusing.

The geometry of the lens includes a thickness of 3 mm at the edge and 5.5 mm at the center. The effective focal length (EFL) is 250.0 mm, and the radius of curvature (R1) is 128.8 mm. The back focal length (BFL) is 245.5 mm, and both the inner and outer radii are 0 mm, indicating a flat surface on the non-curved side of the lens.

This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While coatings can be beneficial in reducing reflection and increasing transmission, an uncoated lens can be suitable for applications where such enhancements are not necessary.

The LA1301 N-BK7 Plano-Convex Lens is currently in stock, according to the vendor's website. For more information, including technical specifications and purchasing details, please refer to the provided weblink.