Circular rainbow enhancement device based on three-prism principle

By using a gyroscopic toothed prism based on the principle of triangular prisms and a projection screen, the problems of insufficient brightness and vividness of rainbows and complex operation in existing technologies have been solved. This technology achieves circular projection of rainbows and vivid rainbow effects, which are suitable for fields such as children's education and architectural design.

CN117789576BActive Publication Date: 2026-05-29TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN UNIV
Filing Date
2023-10-11
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing rainbow generating devices struggle to produce circular rainbows, the rainbow phenomenon is not bright enough, the operation is not flexible enough, and the rainbow generating devices are complex and the rainbows are not vivid enough.

Method used

Using a gyroscopic toothed prism based on the principle of triangular prisms and a projection screen, the rotation axis of the toothed prism is perpendicular to the projection screen. By adjusting the microstructure of the prism and the incident angle of the light, monochromatic light is made to converge on the projection screen, thus realizing the circular projection of a rainbow.

Benefits of technology

It achieves circular projection of rainbows with vibrant colors, enhanced brightness, and simple operation, making it suitable for fields such as children's education and architectural design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the observable projectable circular rainbow enhancement technology based on the principle of triangular prism refraction, and provides a reusable circular rainbow enhancement method and device, wherein the device for realizing circular rainbow enhancement based on the principle of triangular prism comprises a gyroid tooth-shaped prism and a projection screen, the rotation axis of the gyroid tooth-shaped prism is perpendicular to the projection screen, the cross section of the gyroid tooth-shaped prism is two strings of triangles which are symmetrically distributed along the rotation axis and connected in sequence, the gyroid tooth-shaped prism is made of transparent material, the incident light is parallel to the rotation axis of the gyroid tooth-shaped prism, enters and penetrates the gyroid tooth-shaped prism from the connected bottom side, and then is vertically projected to the projection screen. The present application is mainly applied to the design and manufacturing occasions of teaching and display devices.
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