This item is a 10mm diameter x 15mm focal length double-convex lens, designed for use with visible light. It is sourced from the reputable optical components vendor, Edmund Optics. The lens is spherical in shape, with a base shape of a circle, and is coated with a standard visible light coating on both the front and back surfaces.
The lens has a diameter of 10mm and a thickness at the edge of 1.77mm. The center thickness is 3.5mm, and the effective focal length (EFL) is 15mm. The first radius of curvature (R1) is 14.88mm, and the second radius of curvature (R2) is -14.88mm, indicating the double-convex nature of the lens. The back focal length (BFL) is 13.8mm. The inner and outer radii are both 0mm, indicating a uniform curvature.
The lens is made of n-BK7 Schott material, a common and reliable material for optical lenses due to its high refractive index and low dispersion. The wavelength for this lens is 587.6nm, which is in the visible light spectrum. The lens is coated with a standard visible light coating, specifically the EDM VIS-0 STD curve, on both the front and back surfaces. This coating enhances the lens's performance by reducing surface reflections and increasing transmission in the visible light spectrum.