49-979 20mm Dia. x 40mm FL VIS 0deg Coated; UV Plano-Convex Lens VIS 0° 425-675nm

The 49-979 is a 20mm diameter, 40mm focal length Plano-Convex lens, specifically designed for visible light applications with a wavelength of 587.6nm. Sourced from Edmund Optics, this lens is made from fused silica (mal-1965) material, ensuring high clarity and durability.

The lens features a standard curve coating on both the front and back surfaces, specifically the 'edm vis-0 std curve' coating. This coating enhances the lens's performance in the visible light spectrum, providing superior transmission and protection against environmental factors.

The lens geometry includes a 1.53mm edge thickness and a 4.5mm center thickness, offering a balanced design for various applications. The inner and outer radii are both zero, indicating a flat surface on the non-curved side of the lens. The lens's effective focal length (EFL) is 40mm, and the back focal length (BFL) is 36.92mm, providing a long focal length for detailed observations or imaging.

This lens is ideal for applications that require a high-quality, visible light lens with a long focal length. Its robust construction and reliable performance make it a suitable choice for various industries, including research, engineering, and photography.