33-919-INK 75 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=150mm MgF2 400-700nm

The 33-919-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 75 mm, is designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications.

The lens is a multiplet, composed of two different types of glass - N-BAK1 and N-SF8, both from Schott. This combination helps to correct chromatic aberrations, ensuring sharp and clear images. The lens has an effective focal length (EFL) of 150mm, providing a moderate magnification suitable for many applications.

The lens features a standard MgF2 coating on both the front and back surfaces. This coating reduces reflection and increases transmission in the spectral range of 400-700nm, enhancing the overall performance of the lens.

The geometry of the lens includes a thickness of 36.01mm at the edge, with the center thickness being 23.2mm. The lens has a concave-convex-concave shape, with radii of curvature at 92.05mm, -72.85mm, and -305.87mm respectively. The inner and outer radii are both zero, indicating a uniform thickness across the lens.

According to the vendor's website, the lens is currently in stock, making it readily available for immediate use. The product link provided leads to the vendor's website for further details and purchasing options.