Beijing saifan optical instrument limited was established in 2004 to specialize in the development and manufacture of photovoltaic instruments. In 2008, it was awarded the title of high-technology enterprise; it had dozens of scientific patents and software copyrights; and in 2022 it was awarded the title of beijing city specialized new enterprise. The company has two core technologies: spectral testing, and precision motion control. Some of my company's products were awarded the beijing prize for innovation, and the mechanical industry science and technology second prize。