This product is a Plano-Convex Lens, sourced from the renowned optical component vendor, Edmund Optics. The lens, identified as the 38-381-INK, is a spherical lens with a base shape of a circle, designed for use in the near-infrared (NIR) spectrum, specifically between 600 and 1050 nanometers.
The lens has a diameter of 25.4 millimeters and a thickness at the edge of 1.95 millimeters. The center thickness is slightly greater at 3 millimeters. The effective focal length (EFL) of the lens is 150 millimeters, making it suitable for a variety of optical applications.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The front and back surfaces of the lens are coated with the EDM NIR-I std curve, a coating specifically designed for use in the NIR spectrum.
The lens's geometry includes an inner radius of 0 millimeters and an outer radius of 0 millimeters, indicating a simple, straightforward design. The lens's radius of curvature (R1) is 77.52 millimeters, and the back focal length (BFL) is 148.02 millimeters.