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Ruler for teaching

A ruler and small-scale technology, applied in the field of teaching aids, can solve problems such as lack

Inactive Publication Date: 2006-05-31
高杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the course of physical optics, it is necessary to describe the various laws of light in air, water, and refraction or reflection, but there is a lack of an intuitive demonstration of teaching aids to strengthen students' understanding

Method used

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  • Ruler for teaching

Examples

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Embodiment Construction

[0005] Such as figure 1 As shown, a kind of straightedge used for teaching of the present invention is inlaid with a small laser emitter 2 at one end of the straightedge 1, and the emitting end of the small laser emitter 2 is towards the other end of the straightedge, and on the scale of the straightedge on line 3.

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Abstract

A straight scale used in studying and teaching is featured as inlaying a micro laser emitter at one end of said scale with emitter launching end being set towards another end of said scale, seeing that laser light is coincided with scale on straight scale obversously to verify that light is transmitted in linear way at air, placing another end of said scale in water and seeing that laser light is reflected and refracted in water to realizing the aim of teaching.

Description

technical field [0001] The invention relates to a teaching aid. Background technique [0002] In the course of physical optics, it is necessary to describe the various laws of light in air, water, and refraction or reflection, but there is a lack of an intuitive demonstration of teaching aids to strengthen students' understanding. Contents of the invention [0003] The purpose of the ruler used for teaching in the present invention is to provide a teaching aid which is convenient to use and can visually represent the propagation state of light. A straightedge used for teaching in the present invention is composed of a straightedge, which is characterized in that a small laser emitter is inlaid at one end of the straightedge, the emitting end of the small laser emitter faces the other end of the straightedge, and scale line on the ruler. When the present invention is used in teaching, the laser line obviously coincides with the scale line of the ruler, which verifies that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/22
Inventor 高杰
Owner 高杰
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