49-927 9 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=22.5mm MgF2 400-700nm

The 49-927 is a high-quality Achromatic Doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is designed with a 9 mm diameter and features an effective focal length (EFL) of 22.5mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of glass, N-SSK8 and N-SF56, both from the reputable Schott glass catalog. This combination is strategically chosen to minimize chromatic aberration, a common issue in optical systems, thereby enhancing the overall image quality.

The 49-927 lens features a sophisticated geometry, with a thickness of 3.58mm at the edge and 3mm at the center. The center thickness is further reduced to 1.5mm at the 'a' position, providing flexibility for various optical designs. The lens's inner and outer radii are optimized for optimal performance.

The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating is designed to operate within the 400-700nm spectral range, ensuring high transmission and durability.

The lens is currently in stock and available for immediate purchase through the provided weblink. With its superior optical performance and robust construction, the 49-927 Achromatic Doublet lens is an excellent choice for your optical system needs.