LA1832 N-BK7 Plano-Convex Lens; Dia:30.0 mm; f=250.0 mm Uncoated

The LA1832 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 30.0 mm, is designed for use in a variety of optical systems, offering a focal length of 250.0 mm, making it suitable for applications that require a longer focal length.

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 plano-convex geometry 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 1.7 mm at the edge and 2.6 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 247.4 mm, and the lens has no inner or outer radius, indicating a uniform curvature.

Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflections and increasing transmission, an uncoated lens can be advantageous in certain applications where specific reflection properties are desired or where cost is a concern.

The LA1832 N-BK7 Plano-Convex Lens is currently in stock, according to the vendor's website, making it readily available for your optical system needs.