47-641-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm

The 47-641-INK is a high-quality achromatic doublet lens, boasting a 25 mm diameter and an effective focal length (EFL) of 100 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for purchase through their website.

This achromatic doublet lens is meticulously crafted from two types of Schott glass: N-BK7 and N-SF5. The combination of these materials helps to minimize chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. By correcting this aberration, the 47-641-INK provides clear, sharp images across the entire visible light spectrum.

The lens features a geometric design optimized for precision. The edge thickness measures 6.61 mm, while the center thickness is 6 mm, ensuring structural integrity and minimal distortion. The lens also includes an inner radius of 0 mm and an outer radius of 0 mm, further enhancing its optical performance.

The 47-641-INK is coated with Edmund Optics' standard VIS-0 coating on both the front and back surfaces. This coating is designed to enhance the lens's light transmission capabilities and durability, making it an ideal choice for a wide range of optical applications.