49-280-INK 40 mm Dia. N-BAK4/N-SF10 Achromatic Doublet; EFL=300mm VIS 0° 425-675nm

The 49-280-INK is a high-quality achromatic doublet lens, boasting a 40 mm diameter and an effective focal length (EFL) of 300mm. This lens is designed for use within the visible light spectrum, specifically between 425-675nm. Manufactured by Edmund Optics, this lens is part of their extensive catalog of optical elements, renowned for their precision and reliability.

The lens is constructed from two types of glass, N-BAK4 and N-SF10, both from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens features a standard curve coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's durability and light transmission capabilities.

The lens geometry is intricately designed, with a thickness of 11.66mm at the edge and 9mm at the center. The center thickness reduces to 4.1mm at the 'a' position. The lens's inner and outer radii are 0, and it has a 194.96mm and -148.27mm curvature at the first and second positions, respectively. The third position has a curvature of -483.71mm.

This lens is classified as a multiplet, indicating its complex construction. Despite its complexity, the lens is designed for ease of integration into various optical systems, making it a versatile choice for a wide range of applications. The lens's information, including its catalog number, vendor, and web links, can be found in the item data, ensuring easy access to additional information and purchasing options.