Arched rainbow generator

Abstract

The invention discloses an arched rainbow generator which comprises a housing, wherein a light window is formed in the upper surface of the housing; an LED (Light Emitting Diode) lamp bead is arranged above the light window to serve as a point light source; a prism is mounted in the housing and is provided with a bottom surface, an incident surface and an emergent surface; the incident surface is below the light window; and an emergent window corresponding to the emergent surface is formed in the front side of the housing. According to the arched rainbow generator, the point light source is firstly combined with the prism to split light so as to achieve an ingenious 'arched rainbow' light splitting effect; a 'secondary light splitting' concept is firstly put forward, and secondary light splitting is implemented by a bi-prism to greatly improve the light splitting efficiency; and a rainbow spot layer formed is very clear, attractive and splendor. The LED light bead, which is adopted to form the light source, is energy-saving and efficient, can not only serve as a dispersion demonstration teaching aid of light, but also can serve as a domestic decoration to demonstrate the arched rainbow, thereby achieving the effect of beautifying the domestic environment and learning and fun; and moreover, the innovative result can be applied to an ordinary LED table lamp, so that the arched rainbow generator is practical and can add fun to life.

Description

technical field [0001] The invention relates to an arched rainbow generating machine, which can be used as a teaching tool for demonstrating the dispersion of light, and can also be used as home decoration to beautify the home environment and entertain and educate. Background technique [0002] In high school physics teaching, it involves the demonstration teaching of light dispersion. Dispersion can be used to explain the color of light, and the property that the refractive index of a material decreases with the decrease of incident light frequency (or the increase of wavelength) is called "dispersion". Dispersion can be achieved by means of instruments such as prisms or gratings as "dispersive systems". For example, a thin beam of sunlight can be divided into seven colors of red, orange, yellow, green, blue, indigo, and purple by a prism. This is due to the fact that the refractive index of each color light in polychromatic light is not the same. When they pass through ...

AI Technical Summary

Problems solved by technology

However, the seven-color lights obtained in the current dispersion demonstration are all linear parallel lights, which are far from the arched rainbow light formed by natural phenomena. The teaching demonstration is not vivid enough, and of course it is difficult to innovate and expand its practice in life. To achieve the purpose of decorating and beautifying the home environment, entertaining and entertaining

In addition, the current dispersion demonstrations all use a single split light. Even if the seven-color light is formed, there are problems such as unsatisfactory light splitting efficiency and unstable projection of the seven-color light, which greatly reduces the quality of students' class and learning interest.

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