This is a high-quality Double-Convex Lens, sourced from the reputable vendor MKS/Newport. It is designed for use in the infrared spectrum, specifically for wavelengths between 1000nm and 1550nm. The lens has a diameter of 50.8 mm and a focal length of 300 mm, making it suitable for a wide range of optical applications.
The lens is made from n-BK7 Schott, a high-grade optical glass known for its excellent optical properties. This material ensures high transmission and low dispersion, making it ideal for use in high-precision optical systems. The lens features a double-convex geometry, with radii of curvature of 309.222 mm for the first surface and -309.222 mm for the second surface. This geometry provides a large numerical aperture and a wide field of view, making the lens suitable for use in imaging systems and other applications where a wide angle of view is required.
The lens is coated with a new AR-18 coating on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission in the infrared spectrum, enhancing the performance of the lens in its intended application. The coating also provides excellent environmental stability, ensuring that the lens maintains its performance over time.