This is a mounted double-convex lens with a diameter of 31.5 mm, sourced from Qioptiq Photonics. The lens is made of N-BK7, a type of glass commonly used in optical systems due to its excellent optical properties. The lens features a double-convex geometry, meaning it has two spherical surfaces that curve outwards, which is ideal for applications requiring a strong focusing power.
The lens has an effective focal length (EFL) of 70 mm, which is the distance from the lens's center to the focal point when the lens is used in air. This makes it suitable for applications that require a moderate level of magnification. The lens's thickness at the edge is 2.1 mm, while its center thickness is 5.5 mm, providing structural rigidity and stability.
The lens is coated with qio bbar arb2nirnbk7 on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, making the lens more efficient in transmitting light. The lens is designed to work within the wavelength range of 725-1050 nm, making it suitable for near-infrared applications.