62-478-INK 6.25 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-10mm VIS 0° 425-675nm

The 62-478-INK is a high-quality negative achromatic doublet lens, boasting a 6.25 mm diameter and a focal length of -10 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 official website.

The lens is composed of two distinct materials, N-BAF10 and N-SF10, both from Schott, a leading manufacturer of optical glass. These materials are carefully selected to minimize chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. By combining these materials, the 62-478-INK achieves excellent achromatic performance, making it suitable for a wide range of applications.

The lens features a base shape of a circle, with a thickness of 4.19 mm at the edge and 1 mm at the center. The center thickness increases to 2.5 mm at the 'a' position, providing additional design flexibility. The lens's geometry also includes an inner radius of 0 mm and an outer radius of 0 mm, indicating a symmetrical design.

The 62-478-INK is coated with the EDM VIS-0 STD curve on both the front and back surfaces. This coating enhances the lens's performance in the visible light spectrum, ensuring optimal light transmission and reducing unwanted reflections.