L-PCX318 50.8 mm Dia. Plano-Convex Lens; EFL=400mm Uncoated

The L-PCX318 is a Plano-Convex lens with a diameter of 50.8 mm, sourced from the renowned optical component vendor, Ross Optical. This lens is specifically designed for use in systems where a large effective focal length (EFL) of 400mm is required. The Plano-Convex design, where one side is flat and the other curved, is a common choice for applications that require a simple, single-element lens.

The lens's geometry is meticulously crafted, with a thickness of 3mm at the edge and 4.56mm at the center. The curvature of the lens is defined by a radius (R1) of 206.72mm, which contributes to its EFL of 400mm. The back focal length (BFL) of the lens is 395.8mm, a critical parameter for determining the lens's position within an optical system.

The L-PCX318 is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. This lens is uncoated, meaning it does not have any additional layers to enhance its optical performance or protect it from environmental factors. However, uncoated lenses can be a cost-effective solution for applications where such enhancements are not necessary.

This lens is designed to work with light of wavelength 587.6nm, making it suitable for a wide range of applications. Its spherical shape ensures that light rays are focused to a single point, making it ideal for imaging and other applications where a high degree of focus is required.