The 47-663-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 light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of 30mm, making it suitable for a wide range of optical applications.
The lens is composed of two types of glass, N-SSK8 and N-SF10, both from Schott. 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 sharper images and more accurate color reproduction.
The lens geometry is meticulously designed, with an inner radius of 0 and an outer radius of 0, indicating a symmetrical design. The edge thickness is 4.39mm, while the center thickness is 4.5mm, providing robustness and stability to the lens. The lens also features a front and back coating of edm vis-0 std curve, which enhances its light transmission capabilities and overall performance.