88-593-INK 75 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=200mm VIS 0° 425-675nm

The 88-593-INK is a high-quality achromatic doublet lens, boasting a 75 mm diameter and an effective focal length (EFL) of 200 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 lens is meticulously crafted from two types of Schott glass: N-BK7 and N-SF5. 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 88-593-INK provides clear, focused images across the entire visible light spectrum.

The lens features a base shape that is circular, with a thickness of 15.42 mm at the edge and 17.94 mm at the center. The center thickness can be further customized to 6 mm upon request, providing additional flexibility for specific application needs. The lens's geometry also includes an inner radius of 0 mm and an outer radius of 0 mm, contributing to its sleek design and efficient light transmission.

The 88-593-INK is coated with EDM VIS-0 standard curve coatings on both the front and back surfaces. These coatings enhance the lens's durability and performance by reducing surface reflections and improving light transmission. The result is a lens that offers superior optical performance and reliability.