Have you ever wondered how does your phone’s Face ID accurately recognizes your face, how does a robot vacuum nimbly avoids table and chair legs, how does a factory precisely detect tiny defects in parts? Behind all these applications lies a key device: the speckle laser projector. The seemingly chaotic random light spots it produces are actually “optical […]
The interference and diffraction of light are core experiments in university physics optics, and the choice of equipment directly affects the experimental results and the achievement of teaching objectives. This article combines teaching requirements, experimental principles, and practical scenarios to analyze the logic and precautions of equipment selection from three aspects: light source, optical components, […]
