Large-spacing high-efficiency total reflection structure and thick-walled part

Abstract

The utility model belongs to optical technique field, concretely relates to big interval high -efficient full reflection structure and thick -walled spare, include: optical unit, optical unit includes first reflecting surface, second reflecting surface and third reflecting surface, first reflecting surface and second reflecting surface are inclined to set, collimator, be provided with light source on collimator, collimator is located the top of optical unit, wherein, a part of light is vertically shot on first reflecting surface through collimator, and the horizontal ejection is followed after full reflection through first reflecting surface, another part of light is vertically shot on second reflecting surface through collimator, and the horizontal ejection is followed after full reflection through second reflecting surface and third reflecting surface in proper order, and two parts of light are parallelly shot along the same direction, the utility model discloses through setting optical unit makes optical horizontal ejection, improves the uniformity of light and then improves the lighting effect.

Description

Technical Field

[0001] This utility model belongs to the field of optical technology, specifically relating to a large-pitch high-efficiency total internal reflection structure and a thick-walled component. Background Technology

[0002] Light is applied through traditional collimators and diffusion structures. However, traditional applications result in significant energy loss of light, often requiring multiple LEDs to operate simultaneously, which increases costs and causes heat dissipation issues. Furthermore, traditional collimators do not produce uniform light emission, resulting in low efficiency of the optical system. Utility Model Content

[0003] The purpose of this invention is to provide a large-spacing, high-efficiency total internal reflection structure and thick-walled components to solve the technical problems of low efficiency and high cost of light passing through collimators in traditional optical systems, thereby achieving the goal of uniformly emitting light after total internal reflection in different regions and improving optical efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides a large-spacing, high-efficiency total internal reflection structure, including: An optical unit, comprising a first reflective surface, a second reflective surface, and a third reflective surface, wherein the first reflective surface and the second reflective surface are arranged at an angle; A collimator, on which a light source is provided, is located at the top of the optical unit; Among them, a portion of the light rays are vertically incident on the first reflecting surface by the collimator, and after total internal reflection by the first reflecting surface, they are emitted horizontally. Another portion of the light rays is vertically incident on the second reflecting surface by the collimator, and after being totally reflected by the second reflecting surface and the third reflecting surface in sequence, it is emitted horizontally. The two portions of the light rays are emitted in parallel in the same direction.

[0005] Furthermore, assume that the space has x, y, and z directions, and that the x, y, and z directions are perpendicular to each other; The first reflecting surface has an angle of 40°~50° between the x and z directions, the second reflecting surface has an angle of 40°~50° between the y and z directions, and the third reflecting surface has an angle of 40°~50° between the z and x directions.

[0006] Furthermore, the third reflective surface is connected to the first reflective surface or the second reflective surface via a connecting surface.

[0007] Furthermore, the first reflective surface, the second reflective surface, and the third reflective surface are provided with patterns and textures.

[0008] Furthermore, the collimator has a slit on its sidewall, and the collimator's projected area in the z-direction is S1.

[0009] Furthermore, the projections of the first reflective surface and the second reflective surface in the z-direction are both quadrilaterals with equal areas and an area of ​​S2. Where S2 = S1 / 2.

[0010] Thick-walled components, including the aforementioned large-spacing high-efficiency total reflection structure and the thick-walled component body; Multiple optical units are provided, and all of the optical units are disposed on the thick-walled body.

[0011] Furthermore, the thick-walled component body is provided with a light-emitting surface, which is either curved or straight, and a light distribution pattern is provided on the light-emitting surface.

[0012] The beneficial effects of this utility model are: 1. The light source spacing is large. Because the light undergoes multiple total internal reflections, the light energy is evenly distributed and the energy utilization rate is high. Therefore, the number of LEDs can be reduced, thereby reducing costs.

[0013] 2. Multiple total internal reflections of light: Based on the principle of geometric optics, the energy distribution of light becomes more uniform after multiple total internal reflections. Therefore, the energy distribution will be more uniform after passing through this structure, thus improving optical efficiency.

[0014] 3. This solution can be used with various light-emitting surfaces. Since the light source of this solution is generally emitted from the top and bottom, the placement of the light source can be adjusted to adapt to various shapes of light-emitting surfaces.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the large-pitch high-efficiency total reflection structure and thick-walled component of this utility model; Figure 2 yes Figure 1 Another shape diagram; Figure 3 yes Figure 1 Another shape diagram; Figure 4 yes Figure 1 Schematic diagram of the thick-walled component; Figure 5 yes Figure 2 Schematic diagram of the thick-walled component; Figure 6 yes Figure 3 Schematic diagram of the thick-walled component; Figure 7 yes Figure 4 Top view; Figure 8 yes Figure 5 Top view; Figure 9 yes Figure 6 Top view.

[0018] In the picture: 1. Optical unit; 11. First reflecting surface; 12. Second reflecting surface; 13. Third reflecting surface; 14. Connecting surface; 2. Collimator; 21. Section; 3. Thick-walled component body. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: like Figures 1 to 3 As shown, the large-pitch high-efficiency total internal reflection structure includes: an optical unit 1 and a collimator 2. A light source is provided on the collimator 2, which is located at the top of the optical unit 1. The light emitted by the light source is converged into vertical parallel light rays by the collimator 2 and directed towards the optical unit 1. After total internal reflection by the optical unit 1, the light rays are emitted horizontally, resulting in uniform light output and good lighting effect.

[0021] The space is defined by x, y, and z directions, which are perpendicular to each other. The x, y, and z directions are common spatial coordinate axes. x and y are directions that are perpendicular to each other in a plane, and z is a vertical direction that is perpendicular to x and y. The optical unit 1 includes a first reflecting surface 11, a second reflecting surface 12, and a third reflecting surface 13. The first reflecting surface 11 and the second reflecting surface 12 are inclined.

[0022] In this embodiment, the first reflecting surface 11 has an angle of 45° between the x and z directions, the second reflecting surface 12 has an angle of 45° between the y and z directions, and the third reflecting surface 13 has an angle of 45° between the z and x directions. There are three possible arrangements of the first reflecting surface 11, the second reflecting surface 12, and the third reflecting surface 13 in the optical unit 1: the first reflecting surface 11 is at one end of the second reflecting surface 12, and the third reflecting surface 13 is on one side of the second reflecting surface 12; the first reflecting surface 11 is at one end of the second reflecting surface 12, and the third reflecting surface 13 is on the other side of the second reflecting surface 12; or the first reflecting surface 11 is at the other end of the second reflecting surface 12, and the third reflecting surface is on the other side of the second reflecting surface 12.

[0023] In this embodiment, the third reflective surface 13 is connected to the first reflective surface 11 or the second reflective surface 12 through the connecting surface 14. Since the first reflective surface 11 and the second reflective surface 12 cover the lower part of the collimator 2, and the third reflective surface 13 is on the outside of the collimator 2, the third reflective surface 13 is connected to the first reflective surface 11 or the second reflective surface 12. The first reflective surface 11, the second reflective surface 12 and the third reflective surface 13 are provided with patterns and textures, and the light shines more evenly on the patterns and textures.

[0024] One portion of the light rays is vertically incident on the first reflecting surface 11 through the collimator 2, and after total reflection by the first reflecting surface 11, it is emitted horizontally; the other portion of the light rays is vertically incident on the second reflecting surface 12 through the collimator 2, and after total reflection by the second reflecting surface 12 and the third reflecting surface 13 in sequence, it is emitted horizontally. The two portions of light rays are emitted in parallel in the same direction.

[0025] Example 2: Based on Embodiment 1, the collimator 2 is a condenser, lens or Fresnel lens, etc. The side wall of the collimator 2 is provided with a tangent 21. The projected area of ​​the collimator 2 in the z direction is S1. The projections of the first reflecting surface 11 and the second reflecting surface 12 in the z direction are both quadrilaterals with equal areas and an area of ​​S2; where S2=S1 / 2.

[0026] The first reflecting surface 11 and the second reflecting surface 12 divide the light rays of the collimator 2 equally. Therefore, the projected areas of the first reflecting surface 11 and the second reflecting surface 12 in the z direction are equal and are half of the projected area of ​​the collimator 2 in the z direction. The cross-section 21 of the collimator 2 is trimmed to meet this area condition.

[0027] Example 3: The thick-walled component includes: the large-pitch high-efficiency total internal reflection structure and the thick-walled component body 3 described in the above embodiments; as follows: Figures 4 to 6As shown, multiple optical units 1 are provided, and all optical units 1 are provided on the thick-walled body 3; the thick-walled body 3 is provided with a light-emitting surface, which is either curved or straight, and a light distribution pattern is provided on the light-emitting surface; the light rays pass through the collimator 2 and the optical unit 1 in sequence and are emitted from the light-emitting surface of the thick-walled body 3, and the light distribution pattern on the light-emitting surface makes the light rays more uniform.

[0028] In summary, the light emitted from the light source is converged into vertical parallel light rays by the collimator 2 and then directed towards the optical unit 1. The light rays are divided into two parts by the optical unit 1. One part of the light rays is vertically directed onto the first reflecting surface 11 by the collimator 2 and then horizontally emitted after total internal reflection by the first reflecting surface 11. The other part of the light rays is vertically directed onto the second reflecting surface 12 by the collimator 2 and then horizontally emitted after total internal reflection by the second reflecting surface 12 and the third reflecting surface 13 in sequence. The two parts of the light rays are emitted in parallel along the same direction.

[0029] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A large-pitch, high-efficiency total internal reflection structure, characterized in that: include: An optical unit (1) is provided, comprising a first reflecting surface (11), a second reflecting surface (12), and a third reflecting surface (13), wherein the first reflecting surface (11) and the second reflecting surface (12) are arranged at an angle. Collimator (2), on which a light source is provided, and the collimator (2) is located at the top of the optical unit (1); Among them, a portion of the light rays are vertically incident on the first reflecting surface (11) through the collimator (2), and are emitted horizontally after total internal reflection by the first reflecting surface (11); Another portion of the light rays is vertically incident on the second reflecting surface (12) through the collimator (2), and after being totally reflected by the second reflecting surface (12) and the third reflecting surface (13) in sequence, they are emitted horizontally. The two portions of the light rays are emitted in parallel in the same direction.

2. The large-pitch high-efficiency total internal reflection structure as described in claim 1, characterized in that, Suppose that the space has x, y, and z directions, and that the x, y, and z directions are perpendicular to each other; The first reflecting surface (11) has an angle of 40° to 50° between the x and z directions, the second reflecting surface (12) has an angle of 40° to 50° between the y and z directions, and the third reflecting surface (13) has an angle of 40° to 50° between the z and x directions.

3. The large-pitch high-efficiency total internal reflection structure as described in claim 1, characterized in that, The third reflective surface (13) is connected to the first reflective surface (11) or the second reflective surface (12) via a connecting surface (14).

4. The large-pitch high-efficiency total internal reflection structure as described in claim 1, characterized in that, The first reflective surface (11), the second reflective surface (12) and the third reflective surface (13) are provided with patterns and textures.

5. The large-pitch high-efficiency total internal reflection structure as described in claim 1, characterized in that, The collimator (2) has a slit (21) on its side wall, and the projected area of ​​the collimator (2) in the z direction is S1.

6. The large-pitch high-efficiency total internal reflection structure as described in claim 1, characterized in that, The projections of the first reflecting surface (11) and the second reflecting surface (12) in the z direction are both quadrilaterals with equal areas and an area of ​​S2; Where S2 = S1 / 2.

7. A thick-walled component, characterized in that, include: The large-pitch high-efficiency total reflection structure and the thick-walled component body (3) as described in any one of claims 1 to 6; Multiple optical units (1) are provided, and all of the multiple optical units (1) are provided on the thick-walled body (3).

8. The thick-walled component as described in claim 7, characterized in that, The thick-walled component body (3) is provided with a light-emitting surface, which is either curved or straight, and is provided with a light distribution pattern.

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