This is a 2.5mm diameter x 2.5mm focal length Plano-Convex lens, sourced from the renowned optical component vendor, Edmund Optics. The lens is made from the high-quality material n-lasf9 schott, which is known for its excellent optical properties.
The lens features a VIS-EXT coating on both the front and back surfaces, which extends its usable wavelength range from 350nm to 700nm. This coating enhances the lens's performance by reducing surface reflections and increasing transmission, making it suitable for a wide range of applications in the visible spectrum.
The lens has a base shape of a circle, with a thickness of 0.39mm at the edge and 0.8mm at the center. The effective focal length (EFL) is 2.5mm, and the radius of curvature (R1) is 2.12mm. The back focal length (BFL) is 2.07mm, and both the inner and outer radii are 0mm.
This lens is a great option for those looking for a high-quality, versatile optical component with a wide usable wavelength range and excellent transmission properties. It is currently in stock, and more information can be found on the Edmund Optics website.