Laser celestial globe

Abstract

The invention discloses a laser celestial globe which takes a diode as a basic light source to generate starry sky images and can carry out starry sky effect demonstration indoors in any lighting condition because of adopting a special point light source. Because of miniaturization of a dome and foldable type, the invention can carry out demonstration in places with common space, such as classrooms, laboratories, and the like. A constellation projection device has special mechanical design, a constellation projection ball is driven by an engine to simulate the rotation of starry sky and a projection star map can be regulated according to latitude to dynamically demonstrate the position change of stars, thereby the invention can satisfy the demands that people in different latitude areas can study the relation between starry sky apparent motion change and earth rotation and greatly satisfies the scientific inquiry desire of observers. Due to the specialization of the light source, no need for avoiding light in a demonstration environment, miniaturization, the foldable design of the dome and the low manufacturing cost, the invention is very easy to truly popularize astronomy popular science education in common middle and primary schools.

Description

technical field [0001] The invention relates to a teaching instrument, in particular to a laser planetarium. Background technique [0002] At present, there are many types of instruments that use transparent light technology and microelectronic program playback technology to reflect the starry sky, including dome movies, professional star halls, etc. What they have in common is that they are played in dark conditions in the dark. The special environment of all black conditions cannot be achieved by general education and teaching places, and the professional dome covers a large area and is expensive, which cannot be realized by ordinary primary and secondary schools. Therefore, the teaching of knowledge about the starry sky has plagued most primary and secondary schools for many years. At present, there is still a blank in the world and at home with teaching instruments that are not limited to lighting conditions, low in cost and effective in teaching about the knowledge of...

AI Technical Summary

Problems solved by technology

The special environment of all black conditions cannot be achieved in general education and teaching places, and the professional dome screen occupies a large area and is expensive, which cannot be realized in ordinary primary and secondary schools.

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