HO-PXL50-20C 50mm Dia. N-BK7 Plano-Convex Lens; EFL=1000mm Single Layer MgF2

This HO-PXL50-20C 50mm Dia. N-BK7 Plano-Convex Lens is a high-quality optical component sourced from Holmarc Opto-Mechatronics. It is a spherical lens with a plano-convex base shape, designed for use in a wide range of optical systems. The lens has a diameter of 50mm and a thickness at the edge of 3mm, making it suitable for applications that require a larger aperture and robust construction.

The lens features an effective focal length (EFL) of 1000mm, which is the distance from the lens's center to the focal point when the lens is focused at infinity. This long focal length makes it ideal for use in telephoto lenses, microscopes, and other systems where a narrow field of view and high magnification are required.

The lens is made from N-BK7, a high-quality borosilicate glass commonly used in optical systems due to its excellent optical properties and high damage threshold. The lens's front and back surfaces are coated with a single layer of MgF2, a broadband anti-reflective coating that reduces surface reflections and increases transmission across a wide range of wavelengths.

The coating is applied using a Holmarc-specific process (hol mgf2 0 aoi) that ensures high uniformity and durability. This coating not only improves the lens's performance but also enhances its resistance to environmental factors such as moisture and dust, making it suitable for use in harsh environments.