Uniform light lamp

Abstract

The utility model relates to a dodging lamp which comprises a parallel light assembly and a light guide plate. The two faces of the light guide plate are a first reflecting face and a second reflecting face respectively, a first incident face is arranged on the side edge of the light guide plate, and the parallel light assembly is used for generating first parallel light and emitting the first parallel light to the first incident face so that the first parallel light can enter the light guide plate. The first parallel light is allowed to be totally reflected at the first reflecting surface and the second reflecting surface; at least two first emergent structures are arranged on the second reflecting surface at intervals, and the incident angle of the first parallel light at the first emergent structures is smaller than a total reflection critical angle, so that the first parallel light is allowed to be emitted out of the light guide plate through the first emergent structures.

Description

Technical Field

[0001] The utility model relates to the field of lamps, in particular to a uniform light lamp. Background Art

[0002] Existing uniform light lamps use LED lamp beads and lenses to emit parallel light. Since the method of generating the above-mentioned parallel light is relatively rough, the propagation direction of some light rays will deviate, resulting in poor collimation of the parallel light and reducing the uniformity of the light emission of the uniform light lamp. Utility Model Content

[0003] Based on this, it is necessary to provide a uniform light lamp to address the problem of insufficient light uniformity of the uniform light lamp.

[0004] A uniform light lamp, comprising a parallel light component and a light guide plate;

[0005] The two surfaces of the light guide plate are respectively a first reflective surface and a second reflective surface, a side edge of the light guide plate is provided with a first incident surface, the parallel light assembly is used to generate a first parallel light and direct the first parallel light toward the first incident surface, so that the first parallel light enters the light guide plate and allows the first parallel light to be totally reflected at the first reflective surface and the second reflective surface;

[0006] At least two first emitting structures are arranged at intervals on the second reflecting surface, and the incident angle of the first parallel light at the first emitting structure is smaller than the critical angle of total reflection, so as to allow the first parallel light to be emitted outside the light guide plate through the first emitting structure.

[0007] In the present invention, the first parallel light is vertically incident on the first incident surface, the angle between the first incident surface and the second reflecting surface is α1, the refractive index of the light guide plate is n1, and α1≥arcsin(1 / n1) is satisfied.

[0008] The first emission structure of the present invention is a groove and has a second incident surface for the first parallel light to be incident. The angle between the second incident surface and the second reflection surface is β1, satisfying α1-β1<arcsin(1 / n1).

[0009] A uniform light lamp, comprising a parallel light component and a light guide plate;

[0010] The two surfaces of the light guide plate are respectively a first reflective surface and a second reflective surface, a side edge of the light guide plate is provided with a first incident surface, the parallel light assembly is used to generate a first parallel light and direct the first parallel light toward the first incident surface, so that the first parallel light enters the light guide plate and allows the first parallel light to be totally reflected at the first reflective surface and the second reflective surface;

[0011] At least two first reflection angle adjustment structures are arranged at intervals on the first reflection surface. When the first parallel light is reflected to the second reflection surface by the first reflection angle adjustment structure, the incident angle of the first parallel light at the second reflection surface is less than the critical angle of total reflection.

[0012] The first reflection angle adjustment structure of the utility model is a groove and has a third reflection surface for the first parallel light to be incident on, and the incident angle of the first parallel light on the third reflection surface is not less than the critical angle of total reflection.

[0013] In the present invention, the first parallel light is vertically incident on the first incident surface, the angle between the first incident surface and the second reflecting surface is α1, the refractive index of the light guide plate is n1, and α1≥arcsin(1 / n1) is satisfied.

[0014] In the present invention, the angle between the third reflecting surface and the first reflecting surface is β2, satisfying α1-β2≥arcsin(1 / n1).

[0015] A uniform light lamp comprises a parallel light component, a light guide plate and a refractive film;

[0016] The two surfaces of the light guide plate are respectively a first reflective surface and a second reflective surface, a side edge of the light guide plate is provided with a first incident surface, the parallel light assembly is used to generate a first parallel light and direct the first parallel light toward the first incident surface, so that the first parallel light enters the light guide plate, and allows the first parallel light to be totally reflected at the second reflective surface;

[0017] The refractive film is adhered to the first reflective surface, and the refractive index of the refractive film is greater than the refractive index of the light guide plate. At least two second reflection angle adjustment structures are arranged at intervals on a side of the refractive film away from the first reflective surface. When the first parallel light is reflected to the second reflective surface by the second reflection angle adjustment structure, the incident angle of the first parallel light at the second reflective surface is less than the critical angle of total reflection.

[0018] In the present invention, the first parallel light is vertically incident on the first incident surface, the angle between the first incident surface and the second reflecting surface is α1, the refractive index of the light guide plate is n1, and α1≥arcsin(1 / n1) is satisfied.

[0019] The refractive index of the refractive film of the present invention is n2, the second reflection angle adjustment structure is a groove and has a fourth reflection surface for the first parallel light to be incident, and the angle between the side of the refractive film facing away from the first reflection surface and the fourth reflection surface is β3, satisfying arcsin((n1sinα1) / n2)-β3≥arcsin(1 / n2), arcsin((n1sinα1) / n2)-2β3<arcsin(n1 / n2).

[0020] The utility model has at least one of the following effects:

[0021] 1. While the first parallel light is totally reflected at the first and second reflective surfaces, the first emission structure can destroy the smooth surface structure of the second reflective surface, causing a portion of the first parallel light to be incident on the first emission structure. The incident angle of this portion of the first parallel light at the first emission structure is less than the critical angle for total reflection. As a result, the light guide plate only allows the first parallel light to be emitted from the first emission structure. By simply changing the number and spatial arrangement of the first emission structures, the number and spatial distribution of light emission positions on the second reflective surface can be adjusted, thereby improving the uniformity of the light output of the uniform light lamp.

[0022] 2. While the first parallel light is totally reflected at the first and second reflective surfaces, the first reflection angle adjustment structure can disrupt the smooth surface structure of the first reflective surface, thereby changing the incident angle of part of the first parallel light at the first reflective surface. This in turn causes the incident angle of part of the first parallel light at the second reflective surface to be less than the critical angle for total reflection, allowing the first parallel light to be emitted from a localized position on the second reflective surface. By varying the number and distribution of the first reflection angle adjustment structures, the number and distribution of light-emitting positions on the second reflective surface can be controlled, thereby improving the uniformity of the light output from the uniform light source.

[0023] 3. The first parallel light is reflected by the second reflection angle adjustment structure, reducing its incident angle at the second reflection surface to less than the critical angle of total reflection, thereby allowing light to be emitted from a local position on the second reflection surface. By changing the number and distribution of the second reflection angle adjustment structures, the number and distribution of light emission positions on the second reflection surface can be adjusted, thereby improving the uniformity of the light emission of the uniform light lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the light path diagram of the uniform light lamp in Example 1 of the present utility model;

[0025] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0026] Figure 3 This is the light path diagram of the uniform light lamp in Example 2 of the present utility model;

[0027] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0028] Figure 5 This is the light path diagram of the uniform light lamp in Example 3 of the present utility model;

[0029] Figure 6 for Figure 5 Enlarged structural diagram at point C in the middle.

[0030] Reference numerals:

[0031] 1. Parallel light assembly; 11. Light source; 12. Lens; 2. Light guide plate; 21. First reflection surface; 211. First reflection angle adjustment structure; 2111. Third reflection surface; 22. Second reflection surface; 221. First exit structure; 2211. Second incident surface; 23. First incident surface; 3. Refractive film; 31. Second reflection angle adjustment structure; 311. Fourth reflection surface; 100. First parallel light. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0038] Example 1:

[0039] See also Figure 1 This embodiment provides a uniform light lamp, including a parallel light component 1 and a light guide plate 2.

[0040] The parallel light assembly 1 includes a light source 11 and a lens 12. The light source 11 cooperates with the lens 12 to enable the parallel light assembly 1 to generate a first parallel light 100. The parallel light assembly 1 is prior art and will not be described in detail in this embodiment.

[0041] The upper surface of the light guide plate 2 is a first reflective surface 21, and the lower surface of the light guide plate 2 is a second reflective surface 22. A first incident surface 23 is provided on the side edge of the light guide plate 2. The first incident surface 23 is inclined relative to the first and second reflective surfaces 21 and 22. The parallel light assembly 1 is disposed toward the first incident surface 23 to direct the first parallel light 100 toward the first incident surface 23. The first parallel light 100 enters the light guide plate 2 through the first incident surface 23.

[0042] After entering the light guide plate 2, the first parallel light 100 is first emitted toward the second reflective surface 22, then reflected toward the first reflective surface 21, and then reflected again by the first reflective surface 21 toward the second reflective surface 22. The first parallel light 100 can be reflected multiple times between the first reflective surface 21 and the second reflective surface 22. The incident angle of the first parallel light 100 at the first incident surface 23 satisfies the requirement that the first parallel light 100 can be totally reflected at the first reflective surface 21 and the second reflective surface 22.

[0043] The refractive index of the light guide plate 2 is n1, and the refractive index of air is 1. Therefore, the critical angle of total internal reflection of the light guide plate 2 is arcsin(1 / n1). In other words, the incident angle of the first parallel light 100 on the first reflective surface 21 and the incident angle of the first parallel light 100 on the second reflective surface 22 are both greater than arcsin(1 / n1).

[0044] In this embodiment, the first parallel light 100 is perpendicularly incident on the first incident surface 23, so that as much of the first parallel light 100 as possible enters the light guide plate 2. The angle between the first incident surface 23 and the second reflective surface 22 is α1, so the incident angle of the first parallel light 100 on the second reflective surface 22 is also α1. In order to meet the requirement of total reflection, it is necessary to satisfy α1 ≥ arcsin(1 / n1).

[0045] It is worth noting that in this embodiment, at least two first exit structures 221 are arranged at intervals on the second reflection surface 22. The first exit structure 221 can be a protrusion or a groove. The first exit structure 221 can destroy the smooth surface structure of the second reflection surface 22. Part of the first parallel light 100 will be incident on the first exit structure 221. The incident angle of this part of the first parallel light 100 at the first exit structure 221 is less than the critical angle of total reflection, that is, this part of the first parallel light 100 cannot meet the total reflection requirements at the first exit structure 221. Therefore, this part of the first parallel light 100 can be emitted to the outside of the light guide plate 2 through the first exit structure 221.

[0046] In other words, the light guide plate 2 of this embodiment only allows the first parallel light 100 to be emitted from the first emission structures 221. By simply changing the number and spatial arrangement of the first emission structures 221, the number and spatial distribution of light emission positions on the second reflective surface 22 can be adjusted, thereby allowing the uniformity of the light emission of the uniform light lamp to be improved.

[0047] See also Figure 2 In this embodiment, the first emission structure 221 is a groove and has a second incident surface 2211. The angle between the second incident surface 2211 and the second reflective surface 22 is β1. After being reflected by the first reflective surface 21, a portion of the first parallel light 100 can be incident on the second incident surface 2211. The incident angle of the first parallel light 100 at the second incident surface 2211 is α1-β1, satisfying α1-β1<arcsin(1 / n1), allowing the first parallel light 100 to pass through the second incident surface 2211 and exit the light guide plate 2.

[0048] Example 2:

[0049] See also Figure 3 This embodiment provides a uniform light lamp, including a parallel light component 1 and a light guide plate 2.

[0050] The parallel light assembly 1 includes a light source 11 and a lens 12. The light source 11 cooperates with the lens 12 to enable the parallel light assembly 1 to generate a first parallel light 100. The parallel light assembly 1 is prior art and will not be described in detail in this embodiment.

[0051] The upper surface of the light guide plate 2 is a first reflective surface 21, and the lower surface of the light guide plate 2 is a second reflective surface 22. A first incident surface 23 is provided on the side edge of the light guide plate 2. The first incident surface 23 is inclined relative to the first and second reflective surfaces 21 and 22. The parallel light assembly 1 is disposed toward the first incident surface 23 to direct the first parallel light 100 toward the first incident surface 23. The first parallel light 100 enters the light guide plate 2 through the first incident surface 23.

[0052] After entering the light guide plate 2, the first parallel light 100 is first emitted toward the second reflective surface 22, then reflected toward the first reflective surface 21, and then reflected again by the first reflective surface 21 toward the second reflective surface 22. The first parallel light 100 can be reflected multiple times between the first reflective surface 21 and the second reflective surface 22. The incident angle of the first parallel light 100 at the first incident surface 23 satisfies the requirement that the first parallel light 100 can be totally reflected at the first reflective surface 21 and the second reflective surface 22.

[0053] The refractive index of the light guide plate 2 is n1, and the refractive index of air is 1. Therefore, the critical angle of total internal reflection of the light guide plate 2 is arcsin(1 / n1). In other words, the incident angle of the first parallel light 100 on the first reflective surface 21 and the incident angle of the first parallel light 100 on the second reflective surface 22 are both greater than arcsin(1 / n1).

[0054] In this embodiment, the first parallel light 100 is perpendicularly incident on the first incident surface 23, so that as much of the first parallel light 100 as possible enters the light guide plate 2. The angle between the first incident surface 23 and the second reflective surface 22 is α1, so the incident angle of the first parallel light 100 on the second reflective surface 22 is also α1. In order to meet the requirement of total reflection, it is necessary to satisfy α1 ≥ arcsin(1 / n1).

[0055] It is worth noting that in this embodiment, at least two first reflection angle adjustment structures 211 are spaced apart on the first reflection surface 21. The first reflection angle adjustment structures 211 can be protrusions or grooves to disrupt the smooth structure of the surface of the first reflection surface 21. When the first parallel light 100 is incident on the first reflection angle adjustment structure 211, the incident angle of the first parallel light 100 is changed compared to other positions on the first reflection surface 21. Correspondingly, when part of the first parallel light 100 is reflected by the first reflection angle adjustment structure 211 to the second reflection surface 22, the incident angle of this part of the first parallel light 100 at the second reflection surface 22 will also change.

[0056] In this embodiment, after being reflected by the first reflection angle adjustment structures 211, the incident angle of the first parallel light 100 at the second reflection surface 22 will be less than the critical angle for total reflection, resulting in the first parallel light 100 no longer being totally reflected at the second reflection surface 22. Therefore, in this embodiment, the second reflection surface 22 achieves localized light emission through the first reflection angle adjustment structures 211. By varying the number and distribution of the first reflection angle adjustment structures 211, the number and distribution of light emission positions on the second reflection surface 22 can be controlled, thereby improving the uniformity of the light output of the uniform light source.

[0057] See also Figure 4 In this embodiment, the first reflection angle adjustment structure 211 is a groove, and the first reflection angle adjustment structure 211 has a third reflection surface 2111. The angle between the third reflection surface 2111 and the first reflection surface 21 is β2. When the first parallel light 100 is incident on the third reflection surface 2111, in order to prevent the first parallel light 100 from directly passing through the third reflection surface 2111 and exiting the light guide plate 2, the first parallel light 100 must also be totally reflected at the third reflection surface 2111. In this embodiment, the incident angle of the first parallel light 100 on the third reflection surface 2111 is γ1, where γ1 = α1-β2. Therefore, it is necessary to satisfy α1-β2≥arcsin(1 / n1).

[0058] Example 3:

[0059] See also Figure 5 This embodiment provides a uniform light lamp, including a parallel light component 1, a light guide plate 2 and a refractive film 3.

[0060] The parallel light assembly 1 includes a light source 11 and a lens 12. The light source 11 cooperates with the lens 12 to enable the parallel light assembly 1 to generate a first parallel light 100. The parallel light assembly 1 is prior art and will not be described in detail in this embodiment.

[0061] The upper surface of the light guide plate 2 is a first reflective surface 21, and the lower surface of the light guide plate 2 is a second reflective surface 22. A first incident surface 23 is provided on the side edge of the light guide plate 2. The first incident surface 23 is inclined relative to the first and second reflective surfaces 21 and 22. The parallel light assembly 1 is disposed toward the first incident surface 23 to direct the first parallel light 100 toward the first incident surface 23. The first parallel light 100 enters the light guide plate 2 through the first incident surface 23.

[0062] The lower surface of the refractive film 3 is attached to the first reflective surface 21. The refractive index of the light guide plate 2 is n1, and the refractive index of the refractive film 3 is n2, where n2>n1. After the first parallel light 100 enters the light guide plate 2 through the first incident surface 23, it first strikes the second reflective surface 22, is then reflected by the second reflective surface 22 to the first reflective surface 21, refracts at the first reflective surface 21, enters the refractive film 3, and strikes the upper surface of the refractive film 3. Thereafter, it is reflected at the upper surface of the refractive film 3 and re-enters the light guide plate 2, and then strikes the second reflective surface 22 again. The incident angle of the first parallel light 100 at the first incident surface 23 satisfies the requirement that the first parallel light 100 can be totally reflected at the second reflective surface 22.

[0063] The refractive index of air is 1, so the critical angle of total reflection of the light guide plate 2 is arcsin(1 / n1). In other words, the incident angle of the first parallel light 100 on the second reflective surface 22 is greater than arcsin(1 / n1).

[0064] In this embodiment, the first parallel light 100 is perpendicularly incident on the first incident surface 23, so that as much of the first parallel light 100 as possible enters the light guide plate 2. The angle between the first incident surface 23 and the second reflective surface 22 is α1, so the incident angle of the first parallel light 100 on the second reflective surface 22 is also α1. In order to meet the requirement of total reflection, it is necessary to satisfy α1 ≥ arcsin(1 / n1).

[0065] It is worth noting that in this embodiment, at least two second reflection angle adjustment structures 31 are provided at intervals on the surface of the refractive film 3 facing away from the first reflection surface 21 (in this embodiment, the upper surface of the refractive film 3). The second reflection angle adjustment structures 31 can be protrusions or grooves to disrupt the smooth structure of the upper surface of the refractive film 3.

[0066] When part of the first parallel light 100 is incident on the second reflection angle adjustment structure 31, the incident angle changes compared to the first parallel light 100 incident on other positions on the upper surface of the refractive film 3. Therefore, for this part of the first parallel light 100 reflected by the second reflection angle adjustment structure 31 and reaching the second reflection surface 22, the incident angle at the second reflection surface 22 will change. More specifically, the incident angle of this part of the first parallel light 100 at the second reflection surface 22 will be less than the critical angle of total reflection, thereby allowing light to be emitted from a local position of the second reflection surface 22. In other words, by changing the number and distribution of the second reflection angle adjustment structures 31, the number and distribution of light emitting positions on the second reflection surface 22 can be adjusted to allow for improvement in the uniformity of the light emission of the uniform light lamp.

[0067] See also Figure 6In this embodiment, the second reflection angle adjustment structure 31 is a groove and has a fourth reflection surface 311. The angle between the fourth reflection surface 311 and the upper surface of the refractive film 3 is β3. The incident angle of the first parallel light 100 on the first reflection surface 21 is α1, and the refraction angle of the first parallel light 100 on the first reflection surface 21 is γ2, satisfying n1sinα1=n2sinγ2, that is, γ2=arcsin((n1sinα1) / n2). The incident angle of the first parallel light 100 on the fourth reflection surface 311 is γ3, where γ3=γ2-β3=arcsin((n1sinα1) / n2)-β3. The critical angle for total reflection between the refractive film 3 and air is arcsin(1 / n2). To ensure that the first parallel light 100 is totally reflected at the fourth reflective surface 311 and prevent light leakage at the fourth reflective surface 311, arcsin((n1sinα1) / n2)-β3≥arcsin(1 / n2). After being reflected by the fourth reflective surface 311, the incident angle of the first parallel light 100 at the first reflective surface 21 is γ4, where γ4=2γ3-γ2=arcsin((n1sinα1) / n2)-2β3. The critical angle for total reflection between the refractive film 3 and the light guide plate 2 is arcsin(n1 / n2). To ensure that the first parallel light 100 can re-enter the light guide plate 2, total reflection cannot occur at the first reflective surface 21. Therefore, arcsin((n1sinα1) / n2)-2β3<arcsin(n1 / n2) is satisfied. The exit angle of the first parallel light 100 at the first reflective surface 21 is γ5, satisfying n2sinγ4=n1sinγ5, so γ5=arcsin((n2sinγ4) / n1). When the first parallel light 100 is reflected by the fourth reflective surface 311 and then re-enters the second reflective surface 22, the incident angle is also γ5. Therefore, γ5<arcsin(1 / n1), allowing the first parallel light 100 to exit the second reflective surface 22 after being reflected by the fourth reflective surface 311. Specifically, when the first parallel light 100 is reflected by the fourth reflective surface 311 and then re-enters the second reflective surface 22, the incident angle is also γ5, and the exit angle is γ6, satisfying n1sinγ5=sinγ6. The above inequality relationship can effectively limit the value range of γ6.

[0068] Because the parallel light assembly 1 of this embodiment is not highly accurate, a certain amount of stray light is present in the first parallel light 100, and the propagation direction of the stray light forms a certain angle with the propagation direction of the first parallel light 100. When the stray light is incident on the fourth reflective surface 311, a portion of the stray light will not be totally reflected due to an incident angle less than arcsin(1 / n²). This portion of the stray light will lose some energy due to transmission through the fourth reflective surface 311. Therefore, the energy proportion of the stray light in the light emitted from the second reflective surface 22 of this embodiment is reduced.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A uniform light lamp, characterized in that: It comprises a parallel light component (1) and a light guide plate (2); The two surfaces of the light guide plate (2) are respectively a first reflection surface (21) and a second reflection surface (22); a first incident surface (23) is provided on a side edge of the light guide plate (2); the parallel light assembly (1) is used to generate a first parallel light (100) and direct the first parallel light (100) toward the first incident surface (23), so that the first parallel light (100) enters the light guide plate (2), and allows the first parallel light (100) to be totally reflected at the first reflection surface (21) and the second reflection surface (22); At least two first exit structures (221) are arranged at intervals on the second reflection surface (22), and the incident angle of the first parallel light (100) at the first exit structure (221) is smaller than the critical angle of total reflection, so as to allow the first parallel light (100) to be emitted outside the light guide plate (2) through the first exit structure (221).

2. The uniform light lamp according to claim 1, characterized in that: The first parallel light (100) is vertically incident on the first incident surface (23), the angle between the first incident surface (23) and the second reflecting surface (22) is α1, the refractive index of the light guide plate (2) is n1, and α1≥arcsin(1 / n1) is satisfied.

3. The uniform light lamp according to claim 2, characterized in that: The first emission structure (221) is a groove and has a second incident surface (2211) for the first parallel light (100) to be incident, and the angle between the second incident surface (2211) and the second reflection surface (22) is β1, satisfying α1-β1<arcsin(1 / n1).

4. A uniform light lamp, characterized in that: It comprises a parallel light component (1) and a light guide plate (2); The two surfaces of the light guide plate (2) are respectively a first reflection surface (21) and a second reflection surface (22); a first incident surface (23) is provided on a side edge of the light guide plate (2); the parallel light assembly (1) is used to generate a first parallel light (100) and direct the first parallel light (100) toward the first incident surface (23), so that the first parallel light (100) enters the light guide plate (2), and allows the first parallel light (100) to be totally reflected at the first reflection surface (21) and the second reflection surface (22); At least two first reflection angle adjustment structures (211) are arranged at intervals on the first reflection surface (21); when the first parallel light (100) is reflected by the first reflection angle adjustment structures (211) to the second reflection surface (22), the incident angle of the first parallel light (100) at the second reflection surface (22) is smaller than the critical angle of total reflection.

5. The uniform light lamp according to claim 4, characterized in that: The first reflection angle adjustment structure (211) is a groove and has a third reflection surface (2111) for the first parallel light (100) to be incident on, and the incident angle of the first parallel light (100) on the third reflection surface (2111) is not less than the critical angle of total reflection.

6. The uniform light lamp according to claim 5, characterized in that: The first parallel light (100) is vertically incident on the first incident surface (23), the angle between the first incident surface (23) and the second reflecting surface (22) is α1, the refractive index of the light guide plate (2) is n1, and α1≥arcsin(1 / n1) is satisfied.

7. The uniform light lamp according to claim 6, characterized in that: The angle between the third reflecting surface (2111) and the first reflecting surface (21) is β2, satisfying α1-β2≥arcsin(1 / n1).

8. A uniform light lamp, characterized in that: It comprises a parallel light component (1), a light guide plate (2) and a refractive film (3); The two surfaces of the light guide plate (2) are respectively a first reflection surface (21) and a second reflection surface (22); a first incident surface (23) is provided on a side edge of the light guide plate (2); the parallel light assembly (1) is used to generate a first parallel light (100) and direct the first parallel light (100) toward the first incident surface (23), so that the first parallel light (100) enters the light guide plate (2) and allows the first parallel light (100) to be totally reflected at the second reflection surface (22); The refractive film (3) is adhered to the first reflective surface (21), and the refractive index of the refractive film (3) is greater than the refractive index of the light guide plate (2). At least two second reflection angle adjustment structures (31) are arranged at intervals on a side of the refractive film (3) facing away from the first reflective surface (21). When the first parallel light (100) is reflected to the second reflective surface (22) by the second reflection angle adjustment structures (31), the incident angle of the first parallel light (100) at the second reflective surface (22) is less than the critical angle of total reflection.

9. The uniform light lamp according to claim 8, characterized in that: The first parallel light (100) is vertically incident on the first incident surface (23), the angle between the first incident surface (23) and the second reflecting surface (22) is α1, the refractive index of the light guide plate (2) is n1, and α1≥arcsin(1 / n1) is satisfied.

10. The uniform light lamp according to claim 8, characterized in that: The refractive index of the refractive film (3) is n2, the second reflection angle adjustment structure (31) is a groove and has a fourth reflection surface (311) for the first parallel light (100) to be incident on, and the angle between the surface of the refractive film (3) facing away from the first reflection surface (21) and the fourth reflection surface (311) is β3, satisfying arcsin((n1sinα1) / n2)-β3≥arcsin(1 / n2), arcsin((n1sinα1) / n2)-2β3<arcsin(n1 / n2).

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