Device suitable for measuring refractive index on chalkboard to demonstrate optical refraction and reflection laws

Abstract

A device suitable for measuring refractive index on a chalkboard to demonstrate the optical refraction and reflection laws comprises a disc permanent magnet, a graduated disc, a magnet holding cavity,an optical component, a ring, ring wall through holes, an adjusting combination, a projection laser pen, a T-shaped carrier plate, a small-disc permanent magnet, a cylindrical rack, a base, small magnet holding cavities, a laser pen holding component, a fixing component, and a small round lug. The graduated disc and the base are attracted to the chalkboard according to the magnetism characteristic of the existing chalkboard; the optical component is fixed to the graduated disc; the projection laser pen is inserted into the laser pen holding component; the adjusting combination and the cylindrical rack drive the laser pen holding component to move through gear coupling, the movement and the adjustment of the laser pen holding component help demonstrate optical fraction and reflection lawsand other laws and measure reflective index on the classroom chalkboard.

Description

technical field [0001] The invention relates to a device for measuring the optical refraction index and demonstrating the law of refraction, belonging to the technical field of experiment teaching. Background technique [0002] Patent applications such as "Demonstration Device for the Law of Refraction of Light" (application number 2018112619487) have overcome the long-term shortcomings of only drawing light path diagrams on the blackboard and talking about experiments when explaining the laws of optical refraction and reflection in class. to the blackboard to make the classroom teaching more vivid and intuitive, but it is very convenient to adjust the device, especially the fine adjustment of the incident light, which still needs to be improved. The technical feature of this case is to provide a more flexible and fine-tuned incident light The angle of incidence of light, a classroom experiment teaching device that demonstrates the law of optical refraction and measures the ...

AI Technical Summary

Problems solved by technology

[0002] Patent applications such as "Demonstration Device for the Law of Refraction of Light" (application number 2018112619487) have overcome the long-term shortcomings of only drawing light path diagrams on the blackboard and talking about experiments when explaining the laws of optical refraction and reflection in class. to the blackboard to make the classroom teaching more vivid and intuitive, but it is very convenient to adjust the device, especially the fine adjustment of the incident light, which still needs to be improved. The technical feature of this case is to provide a more flexible and fine-tuned incident light Angle of incidence of light, classroom experiment teaching device for demonstrating the law of optical refraction and measuring refractive index on the blackboard

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