LPX-20.0-20.7-C 20 mm Dia. N-BK7 Image Grade Plano-Convex Lens; EFL=40mm Uncoated

This is the LPX-20.0-20.7-C, a 20 mm diameter Plano-Convex lens made from N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. The lens is sourced from CVI Laser Optics, a reputable vendor known for their high-quality optical components.

The lens features a planar surface on one side and a convex surface on the other, with a radius of curvature of 20.7 mm. This particular model is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, its base material, N-BK7, offers high transmission in the visible spectrum and is resistant to thermal shock and radiation.

The lens has an effective focal length (EFL) of 40 mm, making it suitable for applications that require moderate magnification. Its thickness at the edge is 1.9 mm, while its center thickness is 4.5 mm, providing a good balance between weight and optical performance.

The item data also indicates that this lens is an 'Image Grade' product. This term is often used in the optics industry to denote lenses that have been manufactured to tight tolerances, ensuring high image quality. This makes the LPX-20.0-20.7-C an excellent choice for applications where image quality is paramount, such as in imaging systems, beam shaping, or laser applications.