In recent years, the rapid development of digital technology has led to a revolution in the planetarium, and the digital planetarium came into being. The digital planetarium is based on computer technology and uses the graphics processing and playback system to calculate and adjust the curtain edge blending system, the curtain geometry correction system, the color control system, and the brightness balance system. After six projectors and a dedicated wide-angle lens, The full-sky image is projected on a hemispherical skylight. It first demonstrates the starry sky that the optical planetarium can demonstrate, that is, the various movements of the starry sky, as well as various dynamic images. This greatly enriched the demonstration of the planetarium. It was learned from the World Planetarium Conference held in 2006 that digital planetariums have been widely used in developed countries, and most of the small and medium-sized planetariums are using digital planetariums to perform the sky. In China, except for a few large-scale planetariums and science and technology museums using digital planetariums produced in developed countries, small and medium-sized planetariums and science and technology museums still use digital planetariums to perform the sky, mainly because the prices of imported foreign countries are too high, and domestic No one really produced it, which is one of the main reasons restricting the development of small and medium-sized planetariums.
This system is technically comparable to foreign digital planetarium, and is more advanced than foreign mainstream products in the writing and application of certain software. Its advent has made China's astronomical science and technology a step forward. It is not only the main instrument of astronomical science, but also covers all the functions of the dome theater, greatly expanding the application field, and is a small and medium-sized planetarium and science and technology museum. The school provides a facility that is not only limited to astronomy, but also capable of multi-functional education and entertainment. Compared with similar products abroad, its price is only 1/10 - 1/5, which is easier to accept by domestic schools and other institutions, which provides a huge market advantage for product promotion.
