The 49-532 is a 20.0mm diameter Plano-Concave Lens with a focal length of -40, sourced from Edmund Optics. This lens is designed for use in the near-infrared spectrum, specifically between 600-1050nm, making it suitable for a wide range of applications in this region.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It features a spherical shape, with a radius of curvature of -20.67 on the concave surface. The lens has a thickness of 5.39mm at the edge and 3.5mm at the center.
The 49-532 is coated with the EDM NIR-I std curve on both the front and back surfaces. This coating is designed to enhance the lens' performance in the near-infrared spectrum, improving transmission and reducing reflection. According to the vendor's information, the item is currently in stock and can be purchased directly from the Edmund Optics website.