L-PCX294 50 mm Dia. Plano-Convex Lens; EFL=250mm Uncoated

The L-PCX294 is a Plano-Convex lens with a diameter of 50 mm, sourced from the renowned optical component vendor, Ross Optical. This lens is specifically designed for use in applications where a long effective focal length (EFL) is required. The EFL of this lens is 250mm, making it suitable for use in systems where a high degree of magnification or a narrow field of view is necessary.

The lens is made from N-BK7 Schott glass, a material known for its excellent optical properties and high damage threshold. The base shape of the lens is circular, and it has a thickness of 2 mm at the edge and 4.4 mm at the center. The inner radius of the lens is 0 mm, and the outer radius is also 0 mm, indicating a symmetrical design.

The lens's radius of curvature (R1) is 129.2 mm, and the back focal length (BFL) is 248.04 mm. The BFL is the distance from the rear surface of the lens to the focal point, and it is a critical parameter in lens design. The lens is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces.

This lens is currently in stock and can be purchased directly from the Ross Optical website. The provided weblink leads directly to the product page, where more information about the lens, including pricing and availability, can be found.