In industrial lenses, Tube Lenses and Objective Lenses play a vital role. Tube lenses, as specially designed lenses, are mainly used for imaging in narrow spaces or long distances, such as internal inspection of pipelines. Its long focal length and small field of view enable tube lenses to capture delicate and clear images in a limited space and are widely used in industrial inspection, maintenance, and fault diagnosis. The objective lens is the lens part of the industrial lens that directly faces the object being photographed and is responsible for focusing the image of the object being photographed onto the sensor. The imaging quality of the objective lens directly affects the performance of the entire system. High-quality, objective lenses can provide high-resolution, low-distortion images, laying a solid foundation for subsequent image processing and analysis. In industrial applications, the selection of the objective lens needs to be comprehensively considered based on the characteristics of the object being photographed, the inspection requirements, and the working environment.