49-773-INK 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=25.4mm VIS 0° 425-675nm

The 49-773-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 12.7 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of 25.4 mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of Schott glass, N-SSK8 and N-SF56, which are carefully selected to minimize chromatic aberration, a common issue in optical systems. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, which enhances its light transmission capabilities and overall performance.

The lens geometry is meticulously designed, with a center thickness of 4 mm and edge thickness of 4.1 mm. The lens features three radii of curvature: r1 at 16.77 mm, r2 at -13.63 mm, and r3 at -50.73 mm. The inner and outer radii are both zero, indicating a circular shape.

This lens is a multiplet, meaning it is composed of multiple elements. The multiplet design allows for more precise control over optical properties, making the 49-773-INK a versatile and reliable choice for various optical applications.

According to the vendor's website, the lens is currently in stock, ensuring quick delivery for your optical project needs. For more information, you can visit the product page at https://www.edmundoptics.com/p/127mm-dia-x-254mm-fl-vis-0deg-inked-achromatic-lens/10226/.