Light reflection and refraction demonstrator

Abstract

The utility model provides a light reflection and refraction demonstrator, which comprises two groups of metal optical screens and a laser, the two groups of metal optical screens serve as a display platform and can clearly observe optical phenomena, and scale marks are arranged on the two groups of metal optical screens and can serve as reference marks to help students to more accurately observe the direction and angle of light, so that the light reflection and refraction demonstrator is more convenient to use. The laser is clamped in the light bundling device, the light bundling device can move in the sliding grooves in the rear ends of the two sets of metal optical screens through the protruding blocks, the angle of incident light can be easily and conveniently adjusted, the device is provided with the glass block used for demonstrating the refraction phenomenon of light, and the device is convenient to use. The reflection mirror and the diffusion mirror can be used for demonstrating the reflection and diffusion phenomena of light, and the device can demonstrate various optical phenomena, help students to understand optical principles and phenomena more comprehensively, promote the students to learn and think, and improve the teaching effect of experiments.

Description

Technical Field

[0001] The utility model belongs to the technical field of demonstrators, and more specifically, particularly relates to a light reflection and refraction demonstrator. Background Technique

[0002] In junior high school physics courses, light reflection, refraction, and diffuse reflection are very important optical concepts. In order to help students better understand these concepts, physics teachers usually need to use teaching aids to demonstrate these phenomena. However, traditional demonstration devices often only consist of a laser pointer and a plane mirror, and can only demonstrate the phenomenon of light reflection, with a single function. Demonstrating refraction or diffuse reflection phenomena requires the help of other items. For example, demonstrating the refraction phenomenon requires the use of a water cup, which not only wastes time but also easily wets the podium, and the light reflection on white paper is not clear and vivid enough. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a light reflection and refraction demonstrator to solve the technical problems of the single demonstration function of the laser pointer and the plane mirror and the unclear and vivid enough demonstration effect in the prior art.

[0004] The purpose and efficacy of a light reflection and refraction demonstrator of the utility model are achieved by the following specific technical means:

[0005] A light reflection and refraction demonstrator includes a base. First slots are opened on both sides of the base. A lens box is arranged between the two groups of first slots. The bottom of the lens box is clamped in the base. Two metal screens are arranged at one end of the lens box. The bottoms of the two metal screens are respectively clamped in the two groups of first slots. Scale lines are arranged on the surfaces of the fronts of the two metal screens. A light beam concentrator is clamped on the top of one of the metal screens, and a laser is clamped in the light beam concentrator. A button is clamped on the top of the laser.

[0006] According to a preferred method, a glass block is arranged above the base. A magnetic plate is clamped at one end of the glass block, and the magnetic plate is clamped on the surface of the front of one of the metal screens, and the magnetic plate is located below one of the scale lines.

[0007] According to a preferred method, second slots are opened on both sides of the lens box. A rotating rod is arranged in the lens box. The two ends of the rotating rod are respectively clamped in the two groups of second slots. A turntable is clamped at one end of the rotating rod.

[0008] According to a preferred method, a connecting rod is clamped in the middle of the rotating rod. A reflecting mirror is clamped at one end of the connecting rod, and a diffusing mirror is clamped at the other end of the connecting rod.

[0009] According to a preferred embodiment, sliding grooves are provided at the rear ends of both sets of the metal screens, and a protrusion is clamped at one end of the beam expander, and the protrusion is clamped in one of the sliding grooves.

[0010] According to a preferred embodiment, a battery box is provided behind one of the sets of the metal screens, a dry battery is clamped in the battery box, a power cord is provided between the battery box and the beam expander, one end of the power cord passes through the beam expander and is clamped in the laser, and the other end of the power cord is clamped in the battery box.

[0011] According to a preferred embodiment, hinges are provided behind both sets of the metal screens, and four sets of fixing bolts are provided above the base. One end of two of the fixing bolts passes through the hinge and is clamped in one of the sets of the metal screens, and one end of the other two fixing bolts passes through the hinge and is clamped in the other set of the metal screens.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. Light is emitted from the laser. By moving the beam expander, the angle of the incident light can be adjusted. The device is provided with a glass block, which can be used to demonstrate the refraction phenomenon of light. The lens box clamped on the top of the base can be rotated to adjust the lens irradiated by light. The reflecting mirror can be used to demonstrate the reflection phenomenon of light, and the diffusing mirror can be used to demonstrate the diffusion phenomenon of light. The functions of the device are rich, and the demonstrations of three different phenomena can be realized, so as to help students visually observe a variety of different optical phenomena in one experiment, deepen the understanding of optical concepts, and at the same time facilitate teaching preparation, saving the time and energy of teaching teachers.

[0014] 2. The light after reflection, refraction or diffusion will be displayed on the metal light screen, helping students observe the path and change of the light, visually demonstrating the optical phenomenon. Scale lines are provided on the metal light screen, which can be used as reference marks to help students more accurately observe the direction and angle of the light, so as to promote students' in-depth understanding of optical knowledge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the assembled present utility model.

[0016] Figure 2 is a schematic structural diagram of the disassembled present utility model.

[0017] Figure 3 is Figure 2 an enlarged schematic diagram of area a in

[0018] Figure 4 is a schematic front view structural diagram of the present utility model.

[0019] Figure 5 This is a schematic rear view structure of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0021] 1. Metal screen; 2. Base; 3. Glass block; 4. Light beam concentrator; 5. Laser; 6. Button; 7. Scale line; 8. Magnetic plate; 9. Lens box; 10. Reflecting mirror; 11. Turntable; 12. Slide groove; 13. Protrusion; 14. Fixed bolt; 15. Power cord; 16. Hinge; 17. Dry battery; 18. First card slot; 19. Diffuser; 20. Rotating rod; 21. Connecting rod; 22. Second card slot; 24. Battery box. Specific implementation mode

[0022] The following further describes in detail the implementation mode of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the technical solutions of the utility model, but cannot be used to limit the protection scope of the utility model.

[0023] Embodiment:

[0024] As Figures 1 to 5 shown, the utility model provides a light reflection and refraction demonstrator, which includes a base 2. First card slots 18 are opened on both sides of the base 2. A lens box 9 is arranged between the two groups of first card slots 18. The bottom of the lens box 9 is clamped in the base 2. Two groups of metal screens 1 are arranged at one end of the lens box 9. As a display platform, it can allow students to more clearly and vividly observe the phenomena of light reflection, refraction or diffusion, and deepen their understanding of the light principle. The bottoms of the two groups of metal screens 1 are respectively clamped in the two groups of first card slots 18. Scale lines 7 are arranged on the surfaces of the fronts of the two groups of metal screens 1. A light beam concentrator 4 is clamped on the top of one of the metal screens 1. A laser 5 is clamped in the light beam concentrator 4. A button 6 is clamped on the top of the laser 5. By pressing the button 6, the teaching staff starts the laser 5 to emit light, which will be shown on the two groups of metal light screens 1. A glass block 3 is arranged above the base 2 for demonstrating the refraction phenomenon of light. A magnetic plate 8 is clamped at one end of the glass block 3. The magnetic plate 8 is clamped on the surface of the front end of one of the metal screens 1. The magnetic plate 8 is located below one of the scale lines 7. The magnetic attraction setting enables the teaching staff to easily change its position, thereby realizing the adjustment of the refraction angles and paths of different lights, which can help the teaching staff to conveniently carry out experimental operations.

[0025] As Figures 2 to 3As shown, second card slots 22 are provided on both sides of the lens box 9. A rotating rod 20 is arranged inside the lens box 9. Both ends of the rotating rod 20 are respectively clamped in two groups of second card slots 22. A turntable 11 is clamped at one end of the rotating rod 20, a connecting rod 21 is clamped in the middle of the rotating rod 20, a reflecting mirror 10 is clamped at one end of the connecting rod 21, and a diffusing mirror 19 is clamped at the other end of the connecting rod 21. By rotating the turntable 11, the teaching staff can switch the reflecting mirror 10 and the diffusing mirror 19 back and forth, so as to realize the demonstration of the reflection and diffusion phenomena of light, help students comprehensively understand optical phenomena, and the teaching staff can compare the similarities and differences between the two phenomena at any time, enabling students to more deeply understand different propagation modes of light.

[0026] As Figure 1 , Figure 2 and Figure 5 shown, sliding grooves 12 are provided at the rear ends of two groups of metal screens 1. A protrusion 13 is clamped at one end of the beam expander 4, and the protrusion 13 is clamped in one of the sliding grooves 12. The teaching staff can easily move the beam expander 4 to adjust the angle of the incident light. A battery box 24 is arranged behind one of the metal screens 1. A dry battery 17 is clamped in the battery box 24. A power cord 15 is arranged between the battery box 24 and the beam expander 4. One end of the power cord 15 passes through the beam expander 4 and is clamped in the laser 5, and the other end of the power cord 15 is clamped in the battery box 24.

[0027] As Figure 2 and Figure 5 shown, hinges 16 are provided behind two groups of metal screens 1. Four fixing bolts 14 are arranged above the base 2. One ends of two of the fixing bolts 14 pass through the hinge 16 and are clamped in one of the metal screens 1, and one ends of the other two fixing bolts 14 pass through the hinge 16 and are clamped in the other metal screen 1. The design of the hinge 16 enables the two groups of metal screens 1 to rotate, enables the two groups of metal screens 1 to be not in the same horizontal plane, and can display optical phenomena at different angles and planes, helping students more intuitively understand the propagation path and change law of light.

[0028] Specific usage mode and function of this embodiment:

[0029] The teaching staff presses the button 6 to start the laser 5 to emit light, and can adjust the angle of the incident light by moving the beam expander 4. The glass block 3 is used to demonstrate the refraction phenomenon of light, the reflecting mirror 10 and the diffusing mirror 19 are respectively used to demonstrate the reflection and refraction phenomena of light, and two groups of metal light screens 1 are used to display light, helping students clearly observe optical phenomena. The device can demonstrate a variety of different optical phenomena, which is beneficial to deepening students' understanding of optical concepts, and is also conducive to teaching preparation, and can save the time and energy of teaching teachers.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A light reflection and refraction demonstrator, characterized in that: It includes a base (2). First card slots (18) are provided on both sides of the base (2). A lens box (9) is arranged between the two groups of first card slots (18). The bottom of the lens box (9) is clamped in the base (2). Two metal screens (1) are arranged at one end of the lens box (9). The bottoms of the two metal screens (1) are respectively clamped in the two groups of first card slots (18). Scale lines (7) are arranged on the surfaces of the fronts of the two metal screens (1). A beam expander (4) is clamped at the top of one of the metal screens (1). A laser (5) is clamped in the beam expander (4). A button (6) is clamped at the top of the laser (5).

2. The optical reflection and refraction demonstrator according to claim 1, wherein: A glass block (3) is arranged above the base (2). A magnetic plate (8) is clamped at one end of the glass block (3). The magnetic plate (8) is clamped on the surface of the front end of one of the metal screens (1). The magnetic plate (8) is located below one of the scale lines (7).

3. A light reflection and refraction demonstrator according to claim 1, characterized in that: Second card slots (22) are provided on both sides of the lens box (9). A rotating rod (20) is arranged in the lens box (9). The two ends of the rotating rod (20) are respectively clamped in the two groups of second card slots (22). A turntable (11) is clamped at one end of the rotating rod (20).

4. The optical reflection and refraction demonstrator according to claim 3, characterized in that: A connecting rod (21) is clamped in the middle of the rotating rod (20). A reflecting mirror (10) is clamped at one end of the connecting rod (21). A diffusing mirror (19) is clamped at the other end of the connecting rod (21).

5. The optical reflection and refraction demonstrator according to claim 1, characterized in that: Chute grooves (12) are provided at the rear ends of the two metal screens (1). A protrusion (13) is clamped at one end of the beam expander (4). The protrusion (13) is clamped in one of the chute grooves (12).

6. The optical reflection and refraction demonstrator according to claim 1, characterized in that: A battery box (24) is arranged behind one of the metal screens (1). A dry battery (17) is clamped in the battery box (24). A power cord (15) is arranged between the battery box (24) and the beam expander (4). One end of the power cord (15) passes through the beam expander (4) and is clamped in the laser (5). The other end of the power cord (15) is clamped in the battery box (24).

7. The optical reflection and refraction demonstrator according to claim 1, characterized in that: Hinges (16) are arranged behind the two metal screens (1). Four fixing bolts (14) are arranged above the base (2). One ends of two of the fixing bolts (14) pass through the hinge (16) and are clamped in one of the metal screens (1). One ends of the other two fixing bolts (14) pass through the hinge (16) and are clamped in the other metal screen (1).

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