Developed and produced by Yunnan North Optical Electronics Group Co., Ltd. (formerly Yunnan Optical Instrument Factory), Panda Telescope is the earliest and largest comprehensive precision optical instrument factory integrating scientific research, development, manufacturing and domestic and foreign trade sales in China.
2. Xiguang Telescope (Xiguang Group started at 1953, a national defense high-tech photoelectric enterprise).
3. Phoenix Feniks Telescope (a well-known trademark in China and a famous brand in China).
The role of the telescope:
The first function of the telescope is to enlarge the opening angle of distant objects, so that the human eye can see the details with smaller angular distance. The second function of the telescope is to send the light beam collected by the objective lens, which is much thicker than the pupil diameter (up to 8 mm), to the human eye, so that the observer can see dim objects that he could not see before.
1608, Hans Justus Hans Liebig, a Dutch optician, accidentally discovered that two lenses could be used to see the distant scenery. Inspired by this, he made the first telescope in human history. 1609 Italian Florentine Galileo Galili Lei Faming made a 40x telescope, which is the first practical telescope put into scientific application.
After more than 400 years of development, the function of the telescope is becoming more and more powerful, and the observation distance is getting farther and farther.