Physics teaching presentation device

Abstract

The invention discloses a physics teaching presentation device. The physics teaching presentation device comprises a light-emitting assembly, a lens assembly, an imaging assembly, a carrying assembly, an ocular axis length simulation structure and a crystalline lens simulation structure. The light-emitting assembly can give out parallel lights, the parallel lights pass through the lens assembly and then are projected to the imaging assembly, the lens assembly comprises a concave lens and a convex lens which are used for simulating shortsightedness glasses and farsightedness glasses respectively, the function of the retinae is simulated through the ocular axis length simulation structure, the crystalline lens simulation structure and the imaging assembly, so that the pathogenesis of shortsightedness and farsightedness can be simulated, different physical properties of the concave lens and the convex lens and the related design principle of glasses can be learned by carrying out correcting with the lens assembly and observing changes of different patterns on the imaging assembly, and thus the learning interestingness is improved. The physics teaching presentation device is reasonable in overall structure, easy to operate, and capable of ensuring vividness and interestingness of teaching and being widely applied to physics teaching.

Description

technical field [0001] The invention relates to a physics teaching tool, in particular to a physics teaching demonstration device. Background technique [0002] The imaging principle of the eye is similar to that of the convex lens. In teaching, in order to enable students to better understand the structure and imaging of the eye, it is often explained in combination with the imaging law of the convex lens. However, during the experiment, students often only come into contact with the experiment of convex lens imaging, and the structure and imaging principle of the eye can only be understood by wall charts and textbook illustrations. Since the principle of eye imaging cannot be combined with the principle of convex lens imaging in a more intuitive way, it is difficult for students to understand and remember, and knowledge points are easily forgotten. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a physics teac...

AI Technical Summary

Problems solved by technology

However, during the experiment, students often only come into contact with the experiment of convex lens imaging, and the structure and imaging principle of the eye can only be understood by wall charts and textbook illust

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