Arc-shaped triangular prism arc-shaped rainbow generating device

Abstract

The utility model discloses an arc-shaped triangular prism arc-shaped rainbow generating device, and relates to the technical field of experimental instruments. The device comprises an arc-shaped prism, a prism support, a guide rail base, a guide rail, an electric light source and a shading plate. The arc-shaped triangular prism is fixed on the prism support, and the electric light source is connected with the guide rail in a sliding mode through a sliding block and is coaxial with the triangular prism. The position of the light source is axially adjusted by pushing and pulling the handle, the incident angle is changed to control the vertical position and width of the rainbow ribbon, the outer layer of the arc-shaped ribbon is red, the inner layer is purple, and color sequence distribution of a natural rainbow is visually simulated. The device adopts the electric light source to replace natural light, gets rid of weather limitation, effectively shields environmental interference through the detachable shading plate, and is simple in structure, convenient to operate and suitable for primary school scientific experiment teaching.

Description

Technical Field

[0001] This utility model relates to the field of experimental instrument technology, and is particularly suitable for demonstrating the principle of rainbow formation in elementary school science experiments. Background Technology

[0002] Traditional rainbow demonstration aids often use long, rectangular prisms, which, after dispersion, only form linear color bands and fail to demonstrate the arc-shaped characteristics of a natural rainbow. Furthermore, reliance on sunlight limits the success rate due to weather conditions and incident angles. Existing technologies lack experimental devices that allow for adjustable light source positions and simulate the color sequence of a real rainbow. This invention effectively solves these problems by combining an arc-shaped prism with an adjustable electric light source. Summary of the Invention

[0003] This utility model provides a circular arc-shaped triangular prism arc rainbow generating device, the technical solution of which is as follows:

[0004] Arc-shaped prism: The arc-shaped structure causes the scattered light to form a ring-shaped color band, with red on the outer layer and purple on the inner layer, simulating the color sequence of a natural rainbow.

[0005] Adjustable electric light source: The distance between the light source and the prism can be adjusted by the guide rail slider system to precisely control the incident angle and realize the dynamic adjustment of the position and width of the color strip;

[0006] Light shield: Detachable design, made of matte black material, to eliminate ambient light interference and improve experimental results.

[0007] A circular arc-shaped triangular prism rainbow generating device, characterized in that it comprises:

[0008] An arc-shaped triangular prism (1) is fixed in a prism support (2);

[0009] The guide rail base (6) is snapped into the prism bracket (2);

[0010] The guide rail (5) is fixed to the guide rail base (6) by self-tapping screws;

[0011] The slider (4) is slidably connected to the guide rail (5), and the electric light source (3) is installed by right angle bracket (8) and self-tapping screws;

[0012] A push-pull handle (7) is located on the back side of the electric light source (3) and is used to adjust the position of the electric light source axially.

[0013] The light-shielding plate (9) is detachably snapped onto the other side of the prism bracket (2) and is made of matte black material.

[0014] The electric light source (3) produces white light after being powered on, which is used for experimental demonstration.

[0015] The center point of the electric light source (3) is coaxial with the geometric center of the arc-shaped triangular prism (1).

[0016] The guide rail (5) and slider (4) are designed to work together to enable the continuous axial movement of the electric light source (3) by pushing and pulling the handle (7).

[0017] The light-shielding plate (9) is installed perpendicular to the incident direction of the light source to eliminate ambient light interference.

[0018] Advantages of this utility model:

[0019] 1. Breaking through the limitations of traditional linear color bands, it intuitively displays the color sequence of an arc-shaped rainbow;

[0020] 2. The electric light source design eliminates dependence on natural light, resulting in strong experimental repeatability;

[0021] 3. The light-shielding plate improves the clarity of experiments, has a simple structure, is easy to operate, and is suitable for classroom teaching. Attached Figure Description

[0022] Figure 1 A structural diagram of a device for generating an arc-shaped rainbow using a triangular prism.

[0023] Figure 2 A structural diagram of a device for generating an arc-shaped rainbow using a triangular prism.

[0024] Figure 3 This is a structural diagram of a circular arc-shaped triangular prism and its support.

[0025] Figure 4 A front view of the combination of an arc-shaped triangular prism and its support.

[0026] Figure 5 Diagram of a circular arc-shaped triangular prism structure;

[0027] Figure 6 A front view of a curved triangular prism;

[0028] Figure 7 A cross-sectional view of light from an electric light source passing through a circular arc-shaped prism;

[0029] Figure 8 This is a structural diagram of the combined slider, guide rail, and guide rail base.

[0030] Figure 9 This is a structural diagram of the combination of an electric light source, a right-angle bracket, and a push-pull handle.

[0031] Figure 10 This is a structural diagram of the combination of an electric light source, a right-angle bracket, and a push-pull handle.

[0032] Figure 11 A structural diagram of a circular arc-shaped triangular prism rainbow generator with a light-shielding plate;

[0033] Figure 12 A structural diagram of a circular arc-shaped triangular prism rainbow generator with a light-shielding plate.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Arc-shaped triangular prism, 2. Prism support, 3. Electric light source, 4. Slider, 5. Guide rail, 6. Guide rail base, 7. Push-pull handle, 8. Right angle bracket, 9. Light shield.

[0036] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0037] Combined with appendix Figure 1-12 The present invention will be described in detail below:

[0038] Structural connection: The arc-shaped triangular prism 1 is fixed to the prism bracket 2; the guide rail base 6 is snapped into the prism bracket 2; the electric light source 3 moves along the guide rail 5 via the slider 4, and the push-pull handle 7 controls the axial position of the light source.

[0039] Working principle: White light is a polychromatic light composed of various monochromatic lights. Different colors of light have different refractive indices in the same medium, and according to the law of refraction, the angles of deflection for each monochromatic light will also be different. Therefore, white light passing through a prism will separate the monochromatic lights, creating a dispersion phenomenon. In this device, when the white light generated by the electric light source 3 passes through the arc-shaped prism 1, dispersion occurs due to the difference in refractive indices of different colors of light, forming an arc-shaped color band. Pushing or pulling the handle 7 can adjust the distance between the light source and the prism, changing the angle of incidence, causing the color band to move vertically and adjusting its width.

[0040] Example 1:

[0041] like Figure 7 As shown, in this embodiment, after the electric light source 3 is powered on, the light a generated passes through the arc-shaped triangular prism to produce an arc-shaped color band b, with the outer layer being r (red) and the inner layer being p (purple).

[0042] Example 2:

[0043] like Figure 1 , 8 As shown in Figures 9 and 1, after the electric light source 3 is powered on, the push-pull handle 7 is adjusted to move the light source away from the prism, causing the color band to move downward and its width to decrease.

[0044] Example 3:

[0045] like Figure 11 As shown in Figure 12, after installing the light-shielding plate 9 in this embodiment, the ambient light interference is reduced and the color saturation of the rainbow band is significantly improved.

[0046] This invention overcomes the limitations of traditional teaching aids by combining an arc-shaped triangular prism with an adjustable light source, thus combining practicality and innovation in teaching. Those skilled in the art can make adaptive modifications based on the principles of this invention, and all such modifications fall within the scope of protection.

Claims

1. A device for generating an arc-shaped rainbow using a triangular prism, characterized in that, include: An arc-shaped triangular prism (1) is fixed in a prism support (2); The guide rail base (6) is snapped into the prism bracket (2); The guide rail (5) is fixed to the guide rail base (6) by self-tapping screws. The slider (4) is slidably connected to the guide rail (5) and the electric light source (3) is installed by right angle brackets (8) and self-tapping screws; A push-pull handle (7) is located on the back side of the electric light source (3) and is used to adjust the position of the electric light source axially. The light-shielding plate (9) is detachably snapped onto the other side of the prism bracket (2) and is made of matte black material.

2. The apparatus according to claim 1, characterized in that: The electric light source (3) produces white light after being powered on, which is used for experimental demonstration.

3. The apparatus according to claim 1, characterized in that: The center point of the electric light source (3) is coaxial with the geometric center of the arc-shaped triangular prism (1).

4. The apparatus according to claim 1, characterized in that: The guide rail (5) and slider (4) working together enable the continuous axial movement of the electric light source (3) through the push-pull handle (7).

5. The apparatus according to claim 1, characterized in that: The light-shielding plate (9) is installed perpendicular to the incident direction of the light source to eliminate ambient light interference.

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