AC508-180-AB 50.8 mm Dia. N-LAK22/N-SF6 Unmounted Achromatic Doublet; EFL=180mm 400-1100nm

The AC508-180-AB is a high-quality achromatic doublet lens, sourced from the renowned optical component manufacturer, Thorlabs. This lens, with a diameter of 50.8 mm, is designed for use in the ultraviolet, visible, and near-infrared regions of the spectrum, specifically catering to the wavelength range of 400-1100nm.

The lens is fabricated from two distinct materials, N-LAK22 and N-SF6, both from the reputable Schott glass catalog. These materials are carefully selected to minimize chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. The achromatic design ensures that the lens focuses both red and blue light to the same point, providing sharp and clear images.

The lens features a focal length of 180mm, indicated by the 'EFL=180mm' in its name. This long focal length makes it suitable for applications requiring a narrow field of view or high magnification. The lens has a central thickness of 9.5mm and an edge thickness of 10.2mm, providing robustness and durability.

The lens surfaces are coated with Thorlabs' AB ACHROMATIC AR coating, which is designed to reduce reflection and increase transmission across the entire spectral range. This coating ensures that the maximum amount of light passes through the lens, enhancing the overall system performance.