A light refraction experimental instrument
An experimental instrument and light refraction technology, which is applied in the direction of instruments, teaching models, educational tools, etc., can solve the problems of not being able to cultivate students' interest, students' enthusiasm is not high, and the experimental method is flat, so as to shorten the debugging time, ensure the service life, mastery-promoting effect
Active Publication Date: 2022-06-14
沙琦波
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Problems solved by technology
There are three major shortcomings in this experiment: First, it cannot be directly proved through the experiment: Observing underwater objects obliquely from the outside of the water surface is "shallow to see, but actually deep"; The purpose of attracting students and cultivating interest; third, the existence of refraction cannot be verified from the perspective of underwater creatures, that is, the height of the scene on the shore seen by underwater creatures is higher than the actual height, and there is also a phenomenon of "false height"
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[0029] In order to observe the height difference between the waterproof camera and the water surface, a water level observation scale 3 is longitudinally arranged on the outer wall of the water tank 1 .
[0030] In order to avoid the impact of the impact of water on the camera when entering the water, a buffer water inlet is provided on the outside of the water tank 1. The buffer water inlet includes a water inlet 9 extending outward from the outer wall of the water tank 1 and a water inlet 9 close to the water tank 1. A water inlet slit 91 connected to the bottom of the water tank 1 is arranged horizontally at the bottom of one side, and the side of the water inlet tank 9 away from the water inlet slit 91 is arranged as an inclined plane inclined toward the water inlet slit 91 . At the bottom of the water tank 1, between the water inlet seam 91 and the waterproof camera 8, there is a buffer water barrier 10 whose upper end surface is higher than the water inlet seam 91 and has...
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The invention relates to the field of experimental equipment, and discloses a light refraction experimental instrument, which includes a transparent water tank with an upward opening, and a color ribbon plate with different colors distributed from top to bottom is vertically arranged on one side of the upper end of the water tank, and is arranged at the bottom of the water tank There is a waterproof camera, and a display showing the angle of view of the waterproof camera is arranged on the outer wall of the water tank. The waterproof camera is lifted and lowered by a waterproof lifting mechanism. The receiving block fixed in the elastic sealing layer and the lifting part that drives the receiving block up and down, the waterproof camera is fixed outside the elastic sealing layer and located directly above the receiving block, the instrument can verify the existence of refraction and the existence of water depth on the refractive index influences.
Description
technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a light refraction experimental instrument. Background technique [0002] Now all versions of junior high school physics textbooks have such content: Observing obliquely outside the water surface, the water (or an object under the water) seen is shallower than the actual one, and it is one of the common test points. However, because there is no experiment in the textbook, the teacher had to do theoretical drawing analysis to show that the light reflected from an underwater object is refracted on the water surface, the refracted light is far away from the normal line, and the refracted light enters the human eye, so the human eye sees object. However, due to the illusion of the human eye, it is believed that the refracted light is directly entering the human eye from underwater, that is, the virtual image seen by the human eye is located above the real object. [...
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IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 沙琦波
Owner 沙琦波