Total reflection of light on the demo board controlled by sound
A sound control and demo board technology, applied in the field of demo boards, can solve the problems of not being able to master the principle, students not being able to observe, not talking about analysis, etc.
Inactive Publication Date: 2019-01-25
张仁义
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Problems solved by technology
[0002] When the teacher demonstrates the phenomenon of total reflection of light, the visibility of incident light, refracted light, and reflected light is extremely small, and students cannot observe, let alone analyze the cause of this phenomenon, let alone grasp its principle, which leads to this section of the experiment. Classroom order is chaotic
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[0006] attached figure 1 In the process, after the transmitting device (1) and the optical fiber (2) are fixed, they can move back and forth on the arc surface of the glass brick (3), and the light bulb (4) is in contact with the O point of the glass brick (3), and is connected to the receiving end ( 5) Connection, after the receiving end (5) is connected with the receiving device (7), then put the whole device on the outer surface of the white paper (8) in the demonstration board (10), and move the point P of the optical fiber (2) position, and then observe the reflected light (9) and refracted light (6).
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The invention utilizes optical fiber to control and demonstrate the total reflection phenomenon light by sound. The invention has simple structure, easy manufacture and high visibility, which not onlyhas obvious experimental effect and satisfies teachers and students, but also greatly stimulates the learning interest of students. The invention is characterized in that the total reflection phenomenon of demonstrating light is controlled by sound through optical fiber.
Description
1. Technical field [0001] The invention is a demonstration board specially used for teaching physical optics experiments in middle schools. 2. Background technology [0002] When the teacher demonstrates the phenomenon of total reflection of light, the visibility of incident light, refracted light, and reflected light is extremely small, and students cannot observe, let alone analyze the cause of this phenomenon, let alone grasp its principle. The classroom order of the class is chaotic. In view of this, I demonstrated the phenomenon of total reflection of light with sound control through the optical fiber, and the teachers and students were very satisfied. Using the invention not only has obvious experimental effect, but also greatly stimulates students' interest in learning. 3. Contents of the invention [0003] The purpose of the present invention is: the transmitting end converts the sound signal into an optical signal, and the optical signal is sent to the point P o...
Claims
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CPCG09B23/22
Inventor 张仁义
Owner 张仁义