凸透镜成像规律是几何光学的重要内容之一。教学时需要用作图法和实验法加强学生对凸透镜成像规律的认识和理解。然而，作图时需在黑板上画出多幅光路图，而演示实验又要在光具座上进行，费功费时，且不便于对照和操作。我们研制的双功能凸透镜成像教学仪把作图和实验有机地结 Convex lens imaging law is one of the important contents of geometric optics. Teaching needs to be used as a diagram and experimental method to enhance students’ understanding and understanding of the convex lens imaging law. However, when drawing, multiple light path diagrams need to be drawn on the blackboard, and the demonstration experiment is performed on the optical bench. It takes time and effort, and it is not convenient for comparison and operation. The dual-function convex lens imaging teaching instrument developed by us combines organic mapping and experimentation.