This is the LDX-5.0-4.3-C, a high-quality Convex-Convex spherical lens from CVI Laser Optics. The lens, made from N-BK7 Schott glass, is designed for use in the visible light spectrum, specifically at a wavelength of 546.1 nm.
The lens has a diameter of 5 mm and a thickness at the edge of 0.4 mm, while the center thickness is 2 mm. The effective focal length (EFL) of this lens is 4.5 mm, making it suitable for a variety of optical applications.
The lens features two radii of curvature: the first radius (R1) is 4.3 mm, and the second radius (R2) is -4.3 mm. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, its high-grade N-BK7 Schott glass ensures excellent image quality and light transmission.
The LDX-5.0-4.3-C is available from CVI Laser Optics and is currently in stock. For more detailed information, you can refer to the product catalog on their website.