HO-BXL50-10 50mm Dia. N-BK7 Double-Convex Lens; EFL=500mm Uncoated

This is a HO-BXL50-10 50mm Dia. N-BK7 Double-Convex Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens, which has a diameter of 50mm, is designed with a double-convex geometry, featuring two spherical surfaces that curve outwards. This design is often used to increase the optical power of a lens or to reduce spherical aberration.

The lens has an effective focal length (EFL) of 500mm, which is the distance between the lens's secondary focal point and its optical center. This long focal length makes the lens suitable for use in telescopes, microscopes, and other optical systems where high magnification and a narrow field of view are required.

The lens is made from N-BK7, a type of borosilicate glass that is known for its excellent optical properties. This material has a high refractive index and low dispersion, making it ideal for use in high-precision optical systems. The lens is uncoated, meaning it does not have any additional layers applied to its surfaces to alter its optical properties.

According to the provided item data, the lens has the following geometry: the first radius of curvature (r1) is 520.895021, and the second radius of curvature (r2) is -520.895021. The thickness at the edge of the lens is 3mm. The inner and outer radii are both 0, indicating that the lens has a uniform thickness.

The lens is designed to work with light of a specific wavelength, 587.6nm in this case. This wavelength falls within the visible light spectrum, specifically in the yellow-green region.