Experimental instrument for demonstrating light reflection and refraction

Abstract

The utility model discloses an experimental instrument for demonstrating light reflection and refraction. The experimental instrument comprises a base with a convex structure, a semicircular scale plate and a laser pen, a reflective lens is arranged in the middle of the convex structure; the semicircular scale plate comprises a first scale plate and a second scale plate which are hinged with each other; the first scale plate is connected to the protruding structure of the base in an inserted mode, and the second scale plate can be overturned to be magnetically attracted to the inner wall of the protruding structure so as to be flush with the first scale plate and can also be overturned to form an included angle with the first scale plate; wherein the first scale plate is provided with a semicircular glass brick which is used for demonstrating the refraction of light; the laser pen is hinged to the protruding structure and deflects around the center point of the semicircular scale plate. Through the arrangement, the light reflection and refraction demonstration instrument can visually demonstrate light reflection and refraction, is convenient to carry and use, and effectively improves the teaching quality and the teaching efficiency.

Description

Technical Field

[0001] This utility model relates to the field of experimental apparatus, and in particular to an experimental apparatus for demonstrating light reflection and refraction. Background Technology

[0002] In physics teaching, the phenomena of light reflection and refraction are important knowledge points in the optics section, and are of key significance for students to understand the propagation characteristics and laws of light.

[0003] However, traditional experimental setups for demonstrating light reflection and refraction have certain shortcomings. For example, some traditional setups can only roughly demonstrate the reflection path of light and lack precise angle measurement capabilities, making it difficult for students to intuitively understand the quantitative relationship between the angle of reflection and the angle of incidence. Specifically, when demonstrating the phenomenon of light refraction, using only a simple water tank and transparent medium is not only inconvenient to operate but also makes it difficult to precisely control the angle of incidence and the angle of refraction, resulting in experimental results that are not intuitive, accurate, or clear enough, thus making it difficult for students to fully grasp this knowledge point.

[0004] Therefore, an experimental apparatus for demonstrating light reflection and refraction is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an experimental apparatus for demonstrating light reflection and refraction, which can intuitively demonstrate light reflection and refraction, and is easy to carry and use, effectively improving teaching quality and efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides an experimental apparatus for demonstrating light reflection and refraction, including a base with a raised structure, a semi-circular scale plate, and a laser pointer;

[0007] A reflective mirror is provided in the middle of the protruding structure;

[0008] The semi-circular scale plate includes a first scale plate and a second scale plate that are hinged to each other.

[0009] The first scale plate is inserted into the protruding structure of the base, and the second scale plate can be flipped to magnetically adsorb onto the inner wall of the protruding structure so as to be flush with the first scale plate, and can also be flipped to form an angle with the first scale plate.

[0010] The first scale plate is equipped with a semi-circular glass brick to demonstrate the refraction of light.

[0011] The laser pointer is hinged to the raised structure and deflects around the center point of the semi-circular scale plate.

[0012] Furthermore, the protrusion structure includes a positioning protrusion and a fixing protrusion;

[0013] A latch is formed on one side of the positioning protrusion for engaging the first scale plate;

[0014] The fixing protrusion is located on the opposite side of the positioning protrusion and is used to connect with the laser pointer via a connecting rod bracket;

[0015] The fixed protrusion and the positioning protrusion form a gap that matches the bayonet, which is used to limit the first scale plate.

[0016] Furthermore, the reflective lens is disposed in the middle of the positioning protrusion.

[0017] Furthermore, a magnet is provided inside the positioning protrusion on the side away from the bayonet, and the magnet is used to attract the second scale plate;

[0018] Both the first and second scale plates are made of magnetic material.

[0019] Furthermore, the semi-circular glass brick is adsorbed and connected to the first scale plate.

[0020] Furthermore, the base includes a first support housing and a second support housing that are connected by a snap-fit ​​mechanism;

[0021] Multiple anti-slip support parts are provided at the lower surface edge of the first support housing;

[0022] The protruding structure is integrally formed and installed on the second support shell.

[0023] Furthermore, the anti-slip support is configured as an anti-slip foot pad.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] By incorporating a base with a raised structure, a semi-circular scale plate, and a laser pointer, the semi-circular scale plate can be easily inserted into the raised structure when needed. When transporting the device, the semi-circular scale plate can be detached from the raised structure due to its detachable connection to the base and its hinged first and second scale plates. The first and second scale plates can then be folded along their connecting surfaces, thus achieving convenient carrying and use.

[0026] Furthermore, by placing a reflective mirror in the center of the raised structure, during reflection demonstrations, the laser pointer can be rotated onto the first scale plate with its output end facing the reflective mirror. The reflective mirror then projects the reflected light onto the second scale plate, achieving the purpose of light reflection demonstration. Additionally, by placing a semi-circular glass block on the first scale plate, during refraction demonstrations, the laser pointer's output end only needs to be positioned above the semi-circular glass block, allowing the light to pass through it, so that the refracted light is projected onto the first scale plate, achieving the purpose of light refraction demonstration. Compared to traditional techniques using water tanks and transparent media, this device provides a more intuitive demonstration, effectively improving teaching quality and efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an experimental apparatus demonstrating light reflection and refraction in one embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the experimental apparatus demonstrating light reflection and refraction in one embodiment of the present invention from another perspective.

[0029] Figure 3 This is a schematic diagram of the base in an experimental apparatus demonstrating light reflection and refraction in one embodiment of this utility model.

[0030] Reference numerals: 1. Raised structure; 11. Positioning protrusion; 111. Bayonet; 12. Fixing protrusion; 2. Base; 21. First support shell; 211. Anti-slip support part; 22. Second support shell; 3. Semi-circular scale plate; 31. First scale plate; 32. Second scale plate; 4. Laser pointer; 41. Linkage bracket; 5. Reflector; 6. Semi-circular glass brick. Detailed Implementation

[0031] The experimental apparatus for demonstrating light reflection and refraction according to this invention will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this invention.

[0032] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0033] like Figures 1 to 3As shown in the figure, this utility model embodiment proposes an experimental apparatus for demonstrating light reflection and refraction, including a base 2 with a raised structure 1, a semi-circular scale plate 3, and a laser pointer 4.

[0034] The raised structure 1 has a reflective lens 5 in the middle, which is used to reflect the light emitted by the laser pointer 4, thereby achieving the function of light reflection demonstration.

[0035] Furthermore, the semi-circular scale plate 3 includes a first scale plate 31 and a second scale plate 32 that are hinged together, used to display the light formed during the demonstration of light reflection and refraction.

[0036] In this embodiment, the first scale plate 31 is inserted into the protruding structure 1 of the base 2, and the second scale plate 32 can be flipped to magnetically adhere to the inner wall of the protruding structure 1 to be flush with the first scale plate 31, and can also be flipped to form an angle with the first scale plate 31. That is, by the relative flipping of the first scale plate 31 and the second scale plate 32, it is demonstrated that light reflection requires the plates to be on the same horizontal plane. That is, when the first scale plate 31 and the second scale plate 32 are not on the same horizontal plane, the reflected light cannot be reflected on the second scale plate 32, thus completing the demonstration and exploration of light reflection.

[0037] In addition, a semi-circular glass block 6 is provided on the first scale plate 31 to demonstrate the refraction of light. That is, by setting the input end of the laser pointer 4 above the semi-circular glass block 6, when light passes through the semi-circular glass block 6, it can form refracted light on the first scale plate 31, thereby realizing the demonstration of light refraction.

[0038] The laser pointer 4 is hinged to the protruding structure 1 and deflects around the center point of the semi-circular scale plate 3, so that the input end of the laser pointer 4 can point to the reflective mirror 5, thereby better demonstrating light reflection.

[0039] This device, by setting up a base 2 with a raised structure 1, a semi-circular scale plate 3, and a laser pointer 4, allows the semi-circular scale plate 3 to be simply inserted into the raised structure 1 when needed. When it needs to be carried or transported, since the semi-circular scale plate 3 is detachably connected to the base 2 and the semi-circular scale plate 3 includes a first scale plate 31 and a second scale plate 32 that are hinged to each other, the semi-circular scale plate 3 can be separated from the raised structure 1, and then the first scale plate 31 and the second scale plate 32 can be folded along their connecting surfaces, thus achieving the purpose of convenient carrying and use.

[0040] Furthermore, by placing a reflective mirror 5 in the middle of the protruding structure 1, when performing a reflection demonstration, the laser pointer 4 can be rotated onto the first scale plate 31 with its output end facing the reflective mirror 5. Under the action of the reflective mirror 5, the reflected light is projected onto the second scale plate 32, thereby achieving the purpose of light reflection demonstration. In addition, by placing a semi-circular glass block 6 on the first scale plate 31, when performing a refraction demonstration, the output end of the laser pointer 4 only needs to be positioned above the semi-circular glass block 6, allowing the light to pass through it, so that the refracted light is projected onto the first scale plate 31, achieving the purpose of light refraction demonstration. Compared to the traditional method using a water tank and transparent medium, this device provides a more intuitive demonstration, thereby effectively improving teaching quality and efficiency.

[0041] In a further embodiment, the protrusion structure 1 is further defined to better facilitate the mounting of the semi-circular scale plate 3.

[0042] Specifically, the protrusion structure 1 includes a positioning protrusion 11 and a fixing protrusion 12.

[0043] A notch 111 is formed on one side of the positioning protrusion 11 for engaging the first scale plate 31, that is, limiting one end of the first scale plate 31.

[0044] The fixing protrusion 12 is located on the opposite side of the positioning protrusion 11 and is used to connect with the laser pointer 4 via the connecting rod bracket 41.

[0045] The fixed protrusion 12 and the positioning protrusion 11 form a gap that matches the bayonet 111, which is used to limit the first scale plate 31, that is, to limit the first scale plate 31 a second time, so as to improve the limiting effect of the first scale plate 31 and ensure the stability of the insertion of the first scale plate 31.

[0046] It should be noted that the reflective lens 5 is located in the middle of the positioning protrusion 11.

[0047] In a further embodiment, a magnet (such as...) is disposed inside the side of the positioning protrusion 11 away from the bayonet 111. Figure 1 As shown in the rectangular structure, the magnet is used to attract the second scale plate 32, so that the surface of the second scale plate 32 can be completely flush with the surface of the first scale plate 31, so that when the light reflection is demonstrated, the reflected light can be clearly and intuitively mapped onto the second scale plate 32, thereby improving the teaching quality.

[0048] In a further embodiment, both the first scale plate 31 and the second scale plate 32 are made of magnetic material so that the semi-circular glass brick 6 can be magnetically attached to the first scale plate 31, facilitating the demonstration of light refraction.

[0049] In other embodiments, the base 2 is further defined to improve the stability of the demonstration process.

[0050] Specifically, the base 2 includes a first support housing 21 and a second support housing 22 that are connected by a snap-fit ​​mechanism. Multiple anti-slip support portions 211 are provided at the lower edge of the first support housing 21, and the protruding structure 1 is integrally formed on the second support housing 22.

[0051] The anti-slip support part 211 is configured as an anti-slip foot pad.

[0052] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An experimental apparatus for demonstrating light reflection and refraction, characterized by, The base with convex structure, semicircular scale board and laser pen are included; The middle part of the convex structure is provided with a mirror; The semicircular scale board includes a first scale board and a second scale board which are hingedly connected to each other; The first scale board is inserted on the convex structure of the base, and the second scale board can be flipped to be magnetically adsorbed to the inner wall of the convex structure to be flush with the first scale board, and can also be flipped to form an included angle with the first scale board; The first scale board is provided with a semicircular glass brick for demonstrating the refraction of light; The laser pen is hingedly connected to the convex structure and is deflected around the center point of the semicircular scale board; The convex structure includes a positioning convex and a fixing convex; One side of the positioning convex is formed with a bayonet for clamping the first scale board; The fixing convex is arranged on the opposite side of the positioning convex for connecting with the laser pen through a connecting rod support; The fixing convex and the positioning convex form a gap matched with the bayonet for limiting the first scale board.

2. The optical reflection and refraction demonstration apparatus of claim 1, wherein, The mirror is arranged in the middle part of the positioning convex.

3. The optical reflection and refraction demonstration apparatus of claim 1, wherein, The inside of the side of the positioning convex away from the bayonet is provided with a magnet for adsorbing the second scale board; The first scale board and the second scale board are both made of magnetic material.

4. The optical reflection and refraction demonstration apparatus of claim 3, wherein, The semicircular glass brick is adsorptively connected with the first scale board.

5. The optical reflection and refraction demonstration apparatus of claim 1, wherein, The base includes a first support shell and a second support shell which are clampedly connected; The lower surface edge of the first support shell is provided with a plurality of anti-skid support parts; The convex structure is integrally formed on the second support shell.

6. The optical reflection and refraction demonstration apparatus of claim 5, wherein, The anti-skid support parts are anti-skid foot pads.

Images