47-704-INK 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=27mm VIS 0° 425-675nm

The 47-704-INK is an 18 mm diameter achromatic doublet lens, designed and manufactured by Edmund Optics. This lens boasts an effective focal length (EFL) of 27mm, specifically tailored for the visible light spectrum, spanning from 425 to 675 nanometers.

The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, each selected for its unique optical properties. The N-BAF10 glass is used for the first element, while the second element is made of N-SF10 glass. This combination helps to correct chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points.

The lens features a standard curvature coating on both the front and back surfaces, identified as 'edm vis-0 std curve'. This coating is designed to enhance the lens's performance in the visible light spectrum.

The lens geometry is defined by its diameter, thickness, and radii of curvature. The diameter measures 18 mm, while the edge thickness is 6.62 mm. The first radius of curvature (r1) is 18.7 mm, and the second radius (r2) is -13.11 mm. The third radius (r3) is -119.12 mm, and the center thickness is 7.67 mm. The lens also has an inner radius of 0 mm and an outer radius of 0 mm.

According to the vendor's information, this lens is in stock and available for immediate purchase. For more detailed information, including pricing and availability, users are encouraged to visit the provided weblink.