47-695-INK 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=35mm VIS 0° 425-675nm

The 47-695-INK is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and an effective focal length (EFL) of 35mm. This lens is designed for use within the visible light spectrum, specifically catering to wavelengths between 425nm and 675nm.

The lens is crafted from two types of Schott glass: N-BK7 and N-SF5. 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. By combining these materials, the 47-695-INK achieves superior color correction, making it an ideal choice for a wide range of applications.

The lens features a standard curvature coating on both the front and back surfaces, further enhancing its performance. This coating helps to reduce surface reflections, thereby increasing transmission and minimizing flare and ghosting.

The geometry of the lens is also noteworthy. It has a thickness of 2.86mm at the edge, with an inner radius and outer radius of 0. The center thickness is 2.3mm, reducing to 0.9mm at the center a. This precise construction ensures the lens delivers sharp, clear images.

The 47-695-INK is available from Edmund Optics and is currently in stock, making it a readily accessible solution for your optical needs. For more information, please refer to the provided weblink.