This is a Plano-Convex Lens, type KPX106AR.18, sourced from MKS/Newport. It is designed for use within the infrared spectrum, specifically between 1000 and 1550 nanometers. The lens has a base shape of a circle, with a diameter of 25.4 millimeters and a thickness at the edge of 3 millimeters. The center thickness of the lens is 3.783 millimeters, and it has an effective focal length of 200 millimeters.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The curvature of the lens is spherical, with a radius of 103.36 millimeters on the front surface. The back focal length of the lens is 197.5 millimeters.
The lens features anti-reflective coating on both the front and back surfaces, specifically the new AR-18 coating. This coating is designed to reduce reflection and increase transmission, thereby enhancing the performance of the lens within its specified infrared spectrum.
Please note that the inner radius of the lens is zero, indicating a flat surface on the back side. This is typical for Plano-Convex lenses, where one surface is flat and the other is curved.
The lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website linked below.
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