49-330-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm

The 49-330-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 12.5 mm, is designed for use in the visible to near-infrared spectrum, spanning 400-1000nm. The lens is specifically engineered to minimize chromatic aberration, ensuring clear, focused images across the entire spectrum.

The lens features a focal length of 75mm, indicated by the EFL (Effective Focal Length) parameter. This makes it suitable for applications requiring moderate magnification. The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring high optical quality and durability.

The geometry of the lens is carefully crafted, with a thickness at the edge of 3.97mm and a center thickness of 3mm. The lens also features a central thickness 'a' of 1.6mm. The inner and outer radii are 0, indicating a symmetrical design. The lens's surface is coated with EDm VIS-NIR 0SP2002000, a coating specifically designed for use in the visible to near-infrared spectrum, enhancing the lens's performance and longevity.

The lens is currently in stock and available for immediate purchase. For more information, including pricing and detailed specifications, please refer to the provided weblink.