KR101110234B1 - Apparatus for experimenting the properties of light using a body of revolution - Google Patents

Abstract

The present invention relates to an experimental apparatus for testing the properties of light. According to an embodiment of the present invention, a light property test apparatus using a rotating body includes a light source unit generating light, an optical unit installed with an optical body for indicating light properties, and a light source unit connected to the light source unit. There is a passage for passing the light, the first screen portion to reach the light generated by the light source portion reflected from the optical body, the second screen portion to reach the generated light passing through the optical body, Located between the first screen unit and the optical unit, a first rotating shaft rotated by a motor installed perpendicular to the first screen portion, and attached to the first rotating shaft and rotates while reflecting a certain light and the rest of the light A second rotating body which is positioned between the first rotating body to pass through and the second screen unit and the optical unit, and is installed by a motor installed perpendicularly to the second screen unit; It made by and attached to the shaft and the second rotating shaft is rotated a certain light is reflected to include the entire second of the remaining light passes through.

Description

Light property test device using a rotating body {APPARATUS FOR EXPERIMENTING THE PROPERTIES OF LIGHT USING A BODY OF REVOLUTION}

The present invention relates to an experimental apparatus, and more particularly, to an experimental apparatus capable of observing the properties of light.

Light is known to have duality of particle and wave. Among them, due to the wave nature of light, light has properties such as refractive index, reflectivity and diffraction.

Refractive refers to the property that waves change direction due to speed differences at the boundary of the medium. When light passes through a transparent material, it interferes with the electrons in the material. This interference slows the speed of light propagation than in a vacuum and changes its direction as it crosses the interface.

Reflectivity is a phenomenon in which waves change direction at the boundary between two different media, and the degree of reflection is expressed as unit reflectance. The unit reflectance is dependent on the type of material and the state of the surface. The ratio is a measure of how much the various types of radiation, including light, are reflected off the surface of an object.

Diffraction is usually referred to as a variety of phenomena caused by hitting obstacles. These are related to diffraction phenomena, for example refraction of light waves, acoustic impedances, and acoustic waves. Diffraction occurs at all waves. It can be seen in places like sound waves, water waves, magnetic waves, light, x-rays, and radio waves.

If there is a gap in the path of the particle, the particle travels straight through the gap. Waves, on the other hand, return not only to a straight path through the gap, but to a range around it. Thus, diffraction is a phenomenon in which a wave bends and reaches the area which a particle can hardly reach. The diffraction can be easily observed by passing the water wave through a narrow gap.

The degree of diffraction depends on the size and wavelength of the gap. The longer the wavelength compared to the size of the gap, the more diffraction occurs. In other words, when the wavelength is constant, the smaller the size of the gap is, the better the diffraction occurs. When the wave having the straight wavefront passes through the narrow gap, the wave spreads near the semicircle.

In order to improve the learning effect by showing the nature of light as a training practice, various experimental devices are used. However, the path of light propagation in the air is generally difficult to observe. Therefore, in the laboratory, smoke is observed in the air to observe the path of light, and the path of light is observed by TYNDALL PHENOMENON, or the path of light is passed through a tank containing a semi-transparent liquid. I use it.

However, such a prior art consumes a lot of time in preparation for experiments, is subject to space constraints, and costs of installing experimental equipment are excessive.

The present invention is to solve the problems of the conventional method or apparatus for observing the traveling path of light.

That is, the present invention reduces the waste of experiment time and cost by enabling the experiment of the light properties simply by using the apparatus of the present invention, without any separate experiment preparation, solve the spatial constraints in the experiment to efficiently experiment in the education field This is to enable the implementation of.

An apparatus for testing the properties of light using a rotating body according to the present invention for solving the above problems is provided with a light source unit for generating light, an optical unit provided with an optical body for indicating the property of the light, and connected to the light source unit, There is a passage for passing the light generated by the light source unit, the first screen portion to reach the light generated by the light source portion reflected from the optical body, and the second screen portion to reach the generated light passing through the optical body And a first rotational axis positioned between the first screen portion and the optical portion and rotated by a first motor installed perpendicularly to the first screen portion, and fixed to the first rotational axis while being reflected on the first rotational axis. A second motor disposed between the first rotating body and the second screen unit and the optical unit, and vertically installed in the second screen unit. By a second rotating shaft that rotates with, and attached to the second rotational shaft is rotated a certain light is reflected and the remaining light is made, including the entire second passing.

In another embodiment of the present invention, the optical body of the apparatus for testing the properties of light using a rotating body includes at least one of a flat mirror, a concave mirror, a convex mirror, a concave lens, a convex lens, a prism or a slit. It consists of one or more.

In addition, according to another embodiment of the present invention, the concave lens, the convex lens, and the prism of the optical body of the light property test apparatus using the rotating body may be made of a transparent body and may contain liquid therein. It would be.

In addition, according to another embodiment of the present invention, the first motor and the second motor provided in the first screen portion and the second screen portion of the light property test apparatus using the rotating body are adjusted so that the rotation speed is controlled by a variable resistor. It is.

Light property test apparatus using the rotating body according to the present invention does not need to smoke to show the light movement path in the air in order to test the properties of the light, the device to pass the light by filling the translucent liquid in the tank separately There is no need to install, saving time for preparation of experiments, and it is possible to reduce the cost for establishing the above-described conventional experimental environment or apparatus.

In addition, the light property test apparatus using the rotating body according to the present invention can adjust the size of the device at the time of manufacture and equipped with portability according to the produced size, it is possible to conduct an experiment on the nature of light in the classroom, not the laboratory Thus, there is an advantage of solving the spatial constraints in the experiment.

Hereinafter, with reference to the accompanying drawings will be described in detail the features and preferred embodiments of the present invention.
1 is a view showing an embodiment of an apparatus for testing the properties of light using a rotating body according to the present invention.
FIG. 2 is a diagram illustrating an embodiment in which an optical body that replaces a convex lens and a concave lens is implemented using a prism.
3 is a view showing an embodiment of a light property test apparatus using a rotating body including a power supply and a rotational speed control unit.
4 is a diagram illustrating an embodiment of an internal circuit of a power supply unit and a rotational speed control unit.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in the corresponding description of the invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

1 is a view showing an embodiment of an apparatus for testing the properties of light using a rotating body according to the present invention.

Referring to FIG. 1, an apparatus for testing light properties using a rotating body according to the present invention includes a first screen unit 102, a first motor 104 installed in a first screen unit, a light source unit 106, and a first rotating shaft. 108, a first screen block 100 composed of a first rotating body 109, an optical unit 110, a second screen unit 122, a second motor 124 installed in the second screen unit, The second screen block 120 is composed of a second rotating shaft 126, the second rotating body 127.

At least one light source unit 106 is provided in the first screen unit 102, and a passage through which light generated by the light source unit 106 passes is formed. In addition, the first screen unit 102 is provided with a first motor 104 installed in the first screen unit so as to rotate the first rotating shaft 108. The first rotating shaft 108 rotates by the motor 104 to rotate the first rotating body 109 attached to the first rotating shaft 108.

The second screen portion 122 is provided with a motor 124 mounted on the second screen portion so as to rotate the second rotation shaft 126. The second rotating shaft 126 rotates by the motor 124 to rotate the second rotating body 127 attached to the second rotating shaft 126.

The optical unit 110 may be provided with at least one or more of an optical body of a planar mirror, a concave mirror, a convex mirror, a concave lens, a convex lens, a prism or slit. When two or more optical bodies are installed, two or more optical units 110 may be provided.

Here, the optical body is a straight, reflective, refractive, diffractive properties such as planar mirror, concave mirror, convex mirror, concave lens, convex lens, prism or slit as light passes or reflects. It means an object to represent the back.

The light source unit 106 may be, for example, a device for generating light such as a laser.

The first screen block 100, the second screen block 120, and the optical unit 110 are manufactured to be separated from each other. By fabricating the experimental device to enable separation, the portability is increased, and the flexible arrangement of each part is possible according to the purpose of the individual experiment.

Referring to FIG. 1, light is generated in at least one light source unit 106. When power is supplied to the first motor 104 and the second motor 124 installed in the first screen part and the second screen part, the motors 104 and 124 rotate, and the first and second rotation shafts 108 and 126 rotate. Rotate each). As the first and second rotating shafts rotate, the first and second rotating bodies 109 and 127 attached to the rotating shaft rotate. Light generated by the light source unit 106 passes through the first screen unit and passes through the first screen block 100. The first rotating body that rotates while the light generated by the light source unit 109 passes through the first screen block 100 passes all of the light generated by the light source unit 106 at a specific position during the rotation process, and at a specific position. All or part of the light generated by the light source unit 106 is reflected. At this time, the light passing through all and only a part of the light passing through the first rotating body reaches the optical unit 110. Light passing through and partly reflected and light passing through the first rotating body are generally not easy to observe with the eyes. However, since the light that is partially or partially reflected by the first rotating body 108 can be recognized by the eye according to the angle of reflection, it indicates the point where the reflected light is located just before the reflection. It will play a role of indicating the movement path of.

Light passing through the first screen block 100 passes through the optical unit 110. In this case, the optical unit 110 includes a straight mirror, a concave mirror, a convex mirror, a concave lens, a convex lens, a prism, a slit, or at least one or more of the installed optical bodies, and the light is straight, refracted, reflected, It exhibits properties such as diffraction. Since the path through which the light passes through the optical body is not easy to observe with a general optical body, the optical body has a transparent material and is made to accommodate a translucent liquid containing impurities therein, so that the light is an optical body. In the process of passing through the optical body can be manufactured to easily observe the movement path of light. In addition, as illustrated in FIG. 3, an optical body exhibiting optical properties such as a convex lens or a concave lens may be manufactured using a plurality of prisms.

Light reflected by the optical body from the optical unit 110 may pass through the first rotating body 109 again. Light passing through the optical body in the optical unit 110 may pass through the second rotating block 120. The light passing through the second rotating block 120 is subjected to the same process as the above to reflect or pass light by the second rotating body 127, the first rotating body (109). Therefore, the movement path of the light passing through the second rotating body can also be observed.

The first and second rotating bodies 109 and 127 shown in FIG. 1 rotate and repeat the operation of passing and reflecting light passing through the rotating region of the rotating body. The path of light passing through the rotating body cannot be visually identified. However, the light partially reflected by the rotating body can be confirmed by the eye, and the movement path of the entire light can be confirmed by the reflected light.

When light, such as a laser, passes through dusty air, it can be identified as a light path by TYNDALL PHENOMENON. That is, the first and second rotors shown in FIG. 1 rotate to play a role of dust in the air.

The shape of the rotating body illustrated in FIG. 1 corresponds to an embodiment, and the first and second rotating bodies may be manufactured in various forms capable of reflecting a part of light and allowing the remaining light to pass by rotating. In addition, the number of the rotating body is limited in order to help the understanding of the drawings, but the number or arrangement of the rotating body may be adjusted to a degree suitable for observing the movement path of the light.

The light property test apparatus using the rotating body according to an embodiment of the present invention can reduce the time consumed to create an experimental environment at low cost, and it is possible to carry out the light property test without space constraints with portability. If such experimental devices are spread in front-line education sites, they can solve the problem that light property experiment was not easy due to cost, time, and space problems in the past, and make it easy to conduct experiments, which can contribute to improving the student's learning ability. have.

FIG. 2 is a diagram illustrating an embodiment in which an optical body that replaces a convex lens and a concave lens is implemented using a prism 200.

The prism 200 is made of a transparent material, and is manufactured to accommodate a translucent liquid therein. Accordingly, light may pass through the prism 200, and the path of light may be confirmed by reflection and scattering by small particles in the translucent liquid.

The convex and concave lenses are made of a transparent material and can be made to receive a translucent liquid therein in the same manner as the prism 200, but a prism is generally used to produce a liquid container having a curved surface. It is more expensive than manufacturing the Prim 200. Therefore, as an arrangement of the prism 200 illustrated in FIG. 2, an optical body having an effect similar to that of the convex lens and the concave lens may be manufactured at low cost and used in an experiment.

Optics may be fabricated to face two prisms 200 to cause light refraction similar to convex lenses.

An optical body may be manufactured to face the edges of two prisms 200 to cause light refraction similar to a concave lens.

3 is a view showing an embodiment of an apparatus for testing the properties of light using a rotating body including a power supply unit 320 and a rotation speed control unit 330.

The power supply unit 320 supplies power to the light source unit 106 and the motors 104 and 124. The rotation speed control unit 330 performs a function of adjusting the rotation speed of the rotation shaft. The rotational speed of the rotating body can be controlled by adjusting the rotational speed of the rotating shaft. By being able to control the speed of the rotating body, it is possible to adjust the amount of light passing through the rotating body or reflected by the rotating body. By adjusting the amount of light passing or reflected, you can create a suitable environment for observing the path of light travel. That is, it is possible to set the rotation speed suitable for the light property experiment by adjusting the rotation speed of the rotor.

4 is a diagram illustrating an embodiment of an internal circuit of a power supply unit and a rotational speed control unit.

The internal circuit 420 of the rotation speed control unit is designed to control the rotation speed of the motor using a variable resistor.

Figure 4 shows an embodiment of the internal circuit of the rotational speed control unit, it is possible to implement a circuit for controlling the rotational speed with other circuits that can adjust the amount of power supplied to the motor.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

100: first screen block
102: first screen unit
104: the first motor
106: light source
108: first rotation axis
109: first rotating body
110: optical unit
120: second screen block
122: second screen portion
124: second motor
126: second axis of rotation
127: second rotating body
200: Prism made of transparent material

Claims (9)

An optical unit in which an optical body for refraction, diffraction, or reflection of light is located;
A first rotating body positioned on one side of the optical part and reflecting or passing all or a part of the incident light according to the rotational position; And
A second rotating body positioned on the other side of the optical part and reflecting or passing all or a part of the light passing through the optical part according to the rotational position;
Light property test apparatus using a rotating body including a. The method of claim 1,
Located at one end of the first rotating body, the optical unit is not located,
A first screen unit through which the light reflected from the optical unit arrives;
Apparatus for testing the properties of light using a rotating body further comprising. The method of claim 2,
The first screen unit
A first rotating shaft to which the first rotating body is attached and rotated by a motor installed in the first screen unit;
A light source unit generating light incident on the first rotating body;
Light property test apparatus using a rotating body further comprising. The method according to claim 1 or 3,
Located at one end of the second rotating body, the optical unit is not located,
A second screen unit through which the light passing through the optical unit reaches;
Apparatus for testing the properties of light using a rotating body further comprising. The method of claim 4, wherein
The second screen unit
A second rotating shaft to which the second rotating body is attached and rotated by a motor provided in the second screen unit;
Apparatus for testing the properties of light using a rotating body further comprising. The method of claim 1, wherein the optical body
Apparatus for testing the properties of light using a rotating body including at least one of a flat mirror, a concave mirror, a convex mirror, a concave lens, a convex lens, a prism or a slit. The method of claim 6, wherein the concave, convex, and prisms
Apparatus for testing the properties of light using a rotating body whose appearance is made of a transparent material and can accommodate a liquid therein. The method of claim 3, wherein
Light property experiment apparatus using a rotating body for adjusting the rotational speed of the motor installed in the first screen portion by using a power supply amount control circuit. The method of claim 5, wherein
Apparatus for testing the properties of light using a rotating body for adjusting the rotational speed of the motor installed in the second screen portion using a power supply amount control circuit.

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