The 63-705-INK is a high-quality achromatic doublet lens, boasting a 10 mm diameter and an effective focal length of 15 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their official website.
This achromatic doublet is composed of two types of Schott glass, N-BAF10 and N-SF10, which are carefully selected to minimize chromatic aberration, a common issue in optical systems. The lens features a standard curve coating on both the front and back surfaces, further enhancing its performance by reducing reflection and increasing transmission.
The lens geometry is meticulously designed, with an outer radius of 0 mm and an inner radius of 0 mm, indicating a simple, circular shape. The edge thickness measures 6.01 mm, while the center thickness is 5.5 mm, providing a robust structure. The lens also has a small thickness variation (a) of 2 mm at the center, which can be beneficial in certain optical system designs.