
This is the HO-BXL25-1.6C 25mm Dia. N-BK7 Double-Convex Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens is designed with a spherical geometry, featuring a base shape of a circle and a diameter of 25mm. It has a thickness edge of 2mm, making it a robust and durable choice for various optical applications.
The lens boasts an effective focal length (EFL) of 40mm, which is a crucial factor in determining the lens's magnification and field of view. The radii of curvature for the first and second surfaces are 40.685818mm and -40.685818mm respectively, contributing to its double-convex shape.
The lens is made from N-BK7, a popular glass type in the optical industry known for its excellent optical properties. This material is identified by the Material ID "n-bk7 schott" in the item data.
The lens is coated with a single layer of MgF2 on both the front and back surfaces, indicated by the coating "hol mgf2 0 aoi". This coating enhances the lens's performance by reducing surface reflections and improving transmission, making it suitable for use in a wide range of wavelengths.
The item data also specifies a wavelength of 587.6nm, which is a standard reference wavelength in optical design and measurement. This wavelength is often used as a reference point for specifying the dispersion and other optical properties of materials.