With the improvement of the quality of life, people's requirements for stage effects in performance activities are also getting higher and higher. When the curtain opened, the large-scale stage light show showed the gorgeous and colorful lighting effects, which made the audience dizzy. But do you know what role the iris plays behind this spectacular light show? Next, this arti... https://www.cttechx.com/news/optical-precision-machining-the-technology-behind-lighting-equipment-257880.html