Substrate: H-K9L(K9) Diavmeter (Ø): 10mm & Effective Focal Length (EFL): 12.5mm Center Thickness: 3.9mm & Edge Thickness: 1.53mm Radius of Curvature: 6.46 & Back Focal Length: 9.93 Made from premium K9 glass, this uncoated plano-convex lens delivers excellent visible light transmission, ideal for laser focusing, beam collimation, and broad-spectrum applications. For optimal performance, position the convex side toward the light source. Multiple sizes available to suit various project needs. The HENGYANGGUANGXUE K9 optical glass plano-convex lens represents an ideal solution for optical system integration. Its precision-curved convex surface enables effective beam collimation, focusing, and imaging functions. Featuring broadband anti-reflection coating on the lens surface, it significantly enhances optical transmission across the visible to near-infrared spectrum while minimizing reflection losses to the greatest extent. This lens proves suitable for various applications including laser processing, optical inspection, and imaging systems, providing reliable optical solutions for both laboratory research and industrial applications.