The 47-634-INK is a high-quality 25 mm diameter Achromatic Doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens boasts an effective focal length (EFL) of 35mm, specifically designed for the visible light spectrum, spanning 425-675nm.
The lens is meticulously crafted from two distinct materials: S-BAH11 from Ohara and N-SF10 from Schott. This combination ensures superior optical performance, minimizing chromatic aberration and distortion. The lens features a standard curve coating on both the front and back surfaces, further enhancing its light transmission capabilities.
The geometry of the lens is equally impressive, with a thickness of 9.47mm at the edge and 11mm at the center. The inner and outer radii are zero, indicating a uniform curvature. The lens's design includes three radii (r1, r2, and r3) that contribute to its overall optical performance. Additionally, the lens features a thickness of 2.5mm at the center a, providing added durability and stability.
This lens is available for purchase directly from the Edmund Optics website, where it is currently in stock. For more detailed specifications and purchasing information, please refer to the provided weblink.