Space three-dimensional demonstration instrument for interference, diffraction, reflection and refraction phenomenon of light

Abstract

The invention discloses a space three-dimensional demonstration instrument for interference, diffraction, reflection and refraction phenomenon of light. The demonstration instrument comprises a laser source base, a laser pen, an optical phenomenon demonstration element and an optical path three-dimensional demonstration box. The optical path three-dimensional demonstration box comprises a transparent box body. The box body is internally provided with liquid or gaseous transparent colloid. The side portion of the laser pen is provided with a control button. The optical phenomenon demonstration element comprises an interference and diffraction demonstration plate, wherein the interference and diffraction demonstration plate is provided with single seams, double seams, circular holes and a circular screen, of which the width or aperture diameter changes gradually. The advantages of the demonstration instrument are that the structure is reasonably designed, the demonstration instrument is convenient to operate, and the teaching demonstration effect is greatly improved.

Description

technical field [0001] The invention relates to a physics teaching aid, in particular to a three-dimensional demonstrator of the entire actual optical path space of light interference, diffraction, reflection and refraction phenomena. Background technique [0002] In the current middle school physics teaching, the teaching demonstration of light interference, diffraction, reflection and refraction is very important for students to learn and master the nature, propagation law and practical application of light. [0003] At present, in middle school teaching, the difficulty of teaching demonstration experiments on light interference, diffraction, reflection and refraction lies in the fact that optical phenomena are not intuitive and cannot form multi-angle visual effects with better visual effects, thus affecting the quality of teaching. [0004] By retrieval, Chinese Patent Publication No. 203134231U discloses a geometrical optics comprehensive demonstrator, but the patent ha...

AI Technical Summary

Problems solved by technology

[0005] (1) It can only be used to demonstrate optical phenomena such as refraction and diffuse reflection of light, but cannot demonstrate light interference and diffraction phenomena, and its demonstration functions are less;

[0006] The structure setting of the laser source as the light source is unreasonable. In actual operation, the control operation of the laser pointer still requires the teacher's hand to hold down the switch of the laser pointer, which is inconvenient to operate and is not conducive to classroom demonstration; in addition, the laser source lacks a direct Contrast effect, reducing the presentation effect

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