This is a HO-BXL12.5-04 12.5mm Dia. N-BK7 Double-Convex Lens, with an effective focal length (EFL) of 50mm. The lens is sourced from Holmarc Opto-Mechatronics, a reputable vendor in the optical industry.
The lens is a Spherical Lens of the Sub Type Spherical Lens (Convex-Convex), with a base shape of Circular. It has a diameter of 12.5mm and a thickness edge of 2mm. The lens is made of N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties.
The inner radius of the lens is 0, and the outer radius is also 0. The curvature of the first surface (R1) is 51.68441, and the curvature of the second surface (R2) is -51.68441. The wavelength of the lens is 587.6nm.
The lens does not have any coating, as indicated in the item data. However, users can explore various coating options from Holmarc Opto-Mechatronics or other vendors to enhance the lens's performance according to their specific application requirements.
For more information about this lens and similar products, users can visit the Holmarc Opto-Mechatronics website through the provided weblink, which is currently valid and indicates that the lens is in stock.