45-206 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=10mm MgF2 400-700nm

The 45-206 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a 5 mm diameter, is designed for use in the visible light spectrum, specifically between 400 and 700 nm.

The lens features a focal length (EFL) of 10 mm, making it suitable for applications that require a compact, high-performance optical component. The achromatic design of the lens ensures that it effectively minimizes chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points.

The lens is composed of two types of glass, N-BAF10 and N-SF10, both from Schott, a leading manufacturer of optical glass. This combination of materials helps to further reduce chromatic aberration and provides excellent image quality.

The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, thereby improving the overall efficiency and quality of the optical system.

The lens's geometry is carefully designed to optimize its performance. It has an edge thickness of 2.22 mm and a center thickness of 1.73 mm. The lens's front and back radii are 7.17 mm and -4.39 mm respectively, while the inner and outer radii are 0 mm each. The lens's thickness at the center 'a' position is 1.03 mm.