HO-BVL50-06 50mm Dia. N-BK7 Double-Concave Lens; EFL=-300mm Uncoated

The HO-BVL50-06 is a high-quality double-concave lens offered by Holmarc Opto-Mechatronics, a renowned vendor in the optical industry. This lens is specifically designed for applications that require a concave-concave spherical lens with a circular base shape.

The lens has a diameter of 50mm and a center thickness of 2.5mm, making it suitable for a wide range of optical systems. The effective focal length (EFL) of this lens is -300mm, indicating its diverging nature. This means that it spreads out light rays, making it ideal for use in applications such as beam expanders or in systems where light needs to be distributed over a larger area.

The lens is made from N-BK7, a popular optical glass type known for its excellent optical properties. This material is characterized by a high refractive index and low dispersion, making it an ideal choice for many optical applications. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this also means that it may have higher reflectivity compared to coated lenses.

The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm, indicating that it is a symmetrical lens. The radii of curvature for the first and second surfaces are -313.738212mm and 313.738212mm, respectively.

Please note that the lens is designed for a wavelength of 587.6nm. This is a common wavelength for many optical systems, but it's important to ensure that it matches your specific application's requirements.