45-800 25 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=35mm NIR II 750-1550nm

The 45-800 is a high-performance achromatic doublet lens, designed and manufactured by Edmund Optics, specifically for use in the near-infrared spectrum (750-1550nm). This lens boasts a 25mm diameter and an effective focal length of 35mm, making it suitable for a wide range of applications.

The lens is constructed from two types of high-quality Schott glass, N-LAK22 and N-SF6, which are renowned for their excellent optical properties in the NIR II range. The combination of these materials in a doublet configuration helps to minimize chromatic aberration, ensuring sharp, clear images across the entire spectral range.

The 45-800 features a robust design, with a thickness of 10.48mm at the edge and 11mm at the center. The center thickness can be further increased to 15mm with the addition of a 4mm shim (sold separately). The lens also has a large inner radius and outer radius of 0mm, providing excellent light transmission and minimal vignetting.

Both the front and back surfaces of the lens are coated with Edmund Optics' standard NIR-II coating, which is specifically designed to enhance performance in the near-infrared spectrum. This coating helps to reduce reflection and increase transmission, further improving the overall image quality.

The 45-800 is currently in stock and available for immediate purchase from the Edmund Optics website. With its high-quality materials, robust design, and excellent optical performance, this lens is an ideal choice for any application that requires high-resolution imaging in the NIR II range.