The 47-635-INK is a high-quality achromatic doublet lens, sourced from Edmund Optics, featuring a 25 mm diameter and an effective focal length (EFL) of 40 mm. This lens is designed for use within the visible light spectrum, specifically catering to wavelengths between 425-675 nm.
The lens is constructed from two distinct materials, S-BAH11 from Ohara and N-SF10 from Schott. This combination aids in the reduction of chromatic aberration, a common issue in optical systems, thereby enhancing the overall image quality. The lens features a standard curvature on both the front and back surfaces, which are coated with EDM VIS-0 standard curve coatings to further improve light transmission and reduce surface reflections.
The lens geometry includes an edge thickness of 8.54 mm, an inner radius of 0 mm, and an outer radius of 0 mm. The center thickness is 9.5 mm, with an additional 2.5 mm at the center a position. The lens's design is circular, with a radius of curvature of 27.97 mm for the first surface and -18.85 mm for the second surface, followed by a -152.94 mm for the third surface.
According to the vendor's information, this lens is currently in stock, making it readily available for your optical system needs. For more detailed information or to make a purchase, please visit the provided weblink.