L-PCX826 12.7 mm Dia. Plano-Convex Lens; EFL=250mm Uncoated

The L-PCX826 is a Plano-Convex lens with a diameter of 12.7 mm, sourced from the renowned optical vendor, Ross Optical. This lens is specifically designed for use in systems where a large effective focal length (EFL) is required, boasting an impressive EFL of 250mm.

The lens is fabricated from the high-quality material, N-BK7 Schott, a borosilicate crown glass known for its excellent optical properties. The Plano-Convex geometry, where one side is flat and the other is curved, allows for efficient light convergence. The lens has a center thickness of 3.1 mm and an edge thickness of 2.9 mm, providing a robust structure while maintaining a compact form factor.

The lens's inner and outer radii are 0, indicating a sharp transition from the flat to the curved surface. The radius of curvature (R1) on the curved side is 129.2 mm. The back focal length (BFL) is 247.96 mm, which is the distance from the rear surface of the lens to the focal point.

Notably, this lens is uncoated. While coatings can enhance the lens performance by reducing reflection, increasing transmission, or providing environmental protection, an uncoated lens can be a cost-effective solution in many applications. However, it may be more susceptible to environmental factors and could have a lower transmission rate compared to coated lenses.