63-697 10 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=40mm MgF2 400-700nm

This is a high-quality 10 mm diameter achromatic doublet lens, catalog number 63-697, sourced from the renowned optical components vendor, Edmund Optics. The lens is specifically designed for use in the spectral range of 400-700nm, making it suitable for a wide range of applications in the visible light spectrum.

The lens is a doublet, meaning it is composed of two individual lenses made from different materials to correct chromatic aberration. The materials used are N-BK7 and N-SF5, both high-quality glasses from Schott, a leading manufacturer of optical glass. The use of these materials ensures excellent image quality and color correction.

The lens has an effective focal length (EFL) of 40mm, which is the distance from the lens's optical center to the point where light rays converge. This makes the lens suitable for use in moderate magnification applications.

The lens surfaces are coated with MgF2, a standard coating that provides excellent transmission in the visible spectrum. This coating helps to reduce reflection and increase the amount of light transmitted through the lens, improving image brightness and contrast.

The lens has a thickness of 3.74mm at the edge and 3mm at the center, with an inner radius of 0mm and an outer radius of 0mm. The center thickness varies, with a value of 1.5mm for the front and 3mm for the back.

The lens is available for purchase through the Edmund Optics website, where it is listed as being in stock at the time of writing. For more information, please refer to the provided weblink.