Light guide structure and vehicle lamp

Abstract

The utility model belongs to the technical field of light guides, and particularly relates to a light guide structure which comprises a light inlet end and a light guide body, the light inlet end is arranged at one end or two ends of the light guide body, and the light guide body is of a long-strip-shaped structure. A light emitting structure is arranged on one side wall of the light guide body, a micro-optical structure used for reflecting and refracting light is arranged on the other side wall of the light guide body, and the light emitting structure and the micro-optical structure are oppositely arranged. The light guide body is designed to be of the long-strip-shaped structure, the light emitting structure and the micro-optical structure are arranged on the two side walls of the light guide body respectively, the height of the whole light guide structure and the width of the whole light guide structure in the light emitting direction are reduced, and lighting uniformity is improved by arranging the micro-optical structure. Polyhedral diamond patterns or patterns in other shapes are arranged on the surface of the micro-optical structure, so that the lightening effect is unique and attractive, and the polyhedral diamond patterns form a starlight bright visual effect; the patterns in other shapes can achieve the function of information interaction between the inside and the outside.

Description

Technical Field

[0001] This utility model relates to the field of optical guide technology, and in particular to an optical guide structure and a vehicle lamp. Background Technology

[0002] With the deep integration of automotive intelligence and electrification technologies, the function of vehicle lights has evolved from traditional lighting to intelligent interaction and information display, placing higher demands on the integration and spatial adaptability of optical modules. However, in order to meet the integration requirements of autonomous driving sensors, millimeter-wave radar, and other equipment, the installation space for vehicle lights has been significantly compressed in modern vehicles, leading to difficulties in adapting traditional thick-walled optical solutions.

[0003] Specifically, in existing thick-walled automotive headlights, the light source is typically positioned below the thick-walled component. The light must undergo multiple reflections or refractions through the thick-walled component before exiting from the light-emitting surface. This design requires a space of 70-80mm in width along the light-emitting direction and 20-30mm in height. However, in modern vehicle architectures, the available installation space for some functional headlights has been reduced to within 20-30mm in width and 10mm in height. Traditional thick-walled headlight structures are difficult to adapt due to size limitations. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the technical problem of how to ensure the lighting effect of vehicle lights in a small installation space in the prior art, this utility model provides a light guide structure and vehicle lights that have a unique lighting effect even in a small installation space.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a light guide structure, which includes: a light input end and a light guide body, wherein the light input end is disposed at one or both ends of the light guide body, and the light guide body is arranged in a long strip structure;

[0006] A light-emitting structure is provided on one side wall of the light guide body, and a micro-optical structure for reflecting and refracting light is provided on the other side wall of the light guide body. The light-emitting structure and the micro-optical structure are arranged opposite to each other, and the micro-optical structure is arranged randomly.

[0007] Furthermore, the micro-optical structure includes multiple optical units, each of which is arranged in a direction opposite to the light-emitting structure, and each of which is provided with multiple patterns for reflecting and refracting light.

[0008] Furthermore, the pattern is a polyhedral diamond pattern, which is disposed on the optical unit.

[0009] Furthermore, the pattern is any one or more combinations of star-shaped patterns, polygonal patterns, or heart-shaped patterns.

[0010] Furthermore, the pattern is protruding or recessed within the optical unit, or a combination of both.

[0011] Furthermore, the radial cross-section of the light guide body is a near-circular structure, and the maximum outline width of the near-circular structure is 6mm-10mm, or the radial cross-section of the light guide body is a plate-like structure.

[0012] Furthermore, the light-emitting structure is provided with horizontal stripes, which extend along the length of the light guide body.

[0013] Furthermore, the light-incident end is a light-concentrating structure.

[0014] Furthermore, the light guide structure also includes a mounting plate structure, which is installed at one or both ends of the light guide body.

[0015] A vehicle light, comprising a light guide structure as described in any one of the preceding claims.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model reduces the height of the entire light guide structure and the width along the light output direction by designing the light guide body as a long strip structure and setting the light output structure and the micro-optical structure on the two side walls of the light guide body respectively.

[0018] (2) By setting an input end at one or both ends of the light guide body, the width along the light output direction is further reduced. In addition, the long strip-shaped light guide body has the effect of long light guiding distance, thereby improving the uniformity of light distribution.

[0019] (3) This utility model improves the uniformity of light emission by setting a micro-optical structure on the sidewall of the light guide structure and using this structure to reflect and refract light. At the same time, polyhedral diamond patterns or other shaped patterns are set on the surface of the micro-optical structure, making the lighting effect unique and beautiful. The polyhedral diamond patterns form a starry visual effect through multi-angle scattering of light; other shaped patterns can realize the information interaction function between the vehicle and the outside world. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0022] Figure 2 for Figure 1 Top view;

[0023] Figure 3 for Figure 1 The main view;

[0024] Figure 4 for Figure 2 Sectional view at point AA;

[0025] Figure 5 for Figure 1 A magnified view of a portion of point B in the middle;

[0026] Figure 6 This is a partially enlarged schematic diagram of the micro-optical structure of Embodiment 2 of this utility model.

[0027] In the diagram: 1. Light input end; 2. Light guide body; 3. Light output structure; 301. Horizontal stripe pattern; 4. Micro-optical structure; 401. Optical unit; 402. Pattern; 5. Mounting plate structure. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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] like Figures 1 to 5 The image shown is a preferred embodiment 1 of the present invention. This embodiment provides a light guide structure comprising: a light-incident end 1 and a light guide body 2. The light-incident end 1 is disposed at one end of the light guide body 2, which is arranged in an elongated shape. A light-emitting structure 3 is disposed on one side wall of the light guide body 2, and a micro-optical structure 4 for reflecting and refracting light is disposed on the other side wall of the light guide body 2. The light-emitting structure 3 and the micro-optical structure 4 are arranged opposite to each other, and the micro-optical structure 4 is arranged randomly.

[0032] In this process, light enters the light guide body 2 through the light input end 1 and hits the micro-optical structure 4. Part of the light is reflected by the micro-optical structure 4 and then emitted from the light output structure 3, while the other part of the light is refracted by the micro-optical structure 4 and then emitted from the micro-optical structure 4.

[0033] In this embodiment, the micro-optical structure 4 includes a plurality of optical units 401, which are arranged along the length of the light guide body 2. Each optical unit 401 protrudes in a direction opposite to the light-emitting structure 3, and each optical unit 401 is provided with a plurality of patterns for reflecting and refracting light.

[0034] In this embodiment, the pattern 402 is a polyhedral diamond pattern, which protrudes from the optical unit 401. Specifically, since the pattern 402 is a polyhedral diamond pattern, when the incident angle of the incident light is greater than the critical angle, the incident light is reflected and exits from the light-emitting structure 3; when the incident angle of the incident light is less than the critical angle, the incident light is refracted by the pattern and exits.

[0035] In one embodiment not shown in the figure, the polyhedral diamond pattern can also be provided on the surface of the optical unit 401 using a recessed structure, or using a composite structure combining a protruding structure and a recessed structure.

[0036] In this embodiment, the radial cross-section of the light guide body 2 is a near-circular structure, and the maximum outline width of the light guide body 2 is 6mm-10mm.

[0037] Specifically, the width of the light guide structure along the light output direction is 20-30mm.

[0038] In one embodiment (not shown), the radial cross-section of the optical guide body 2 has a square-like structure (i.e., a plate-like structure).

[0039] In this embodiment, the light guide body 2 is a transparent PMMA (acrylic) light guide body 2 or a transparent PC (polycarbonate) light guide body 2.

[0040] In this embodiment, the light-emitting structure 3 is provided with a horizontal stripe pattern 301, which extends along the length direction of the light guide body 2.

[0041] In this embodiment, the light-incident end 1 is a light-concentrating structure.

[0042] In this embodiment, the light guide structure also includes a mounting plate structure 5, which is mounted on the other end of the light guide body 2.

[0043] In one embodiment not shown in the figure, the light input end 1 is disposed at both ends of the light guide body 2.

[0044] Specifically, the light input end 1 is provided with a light source, which may include one LED (light-emitting diode) or multiple LEDs.

[0045] In one embodiment not shown in the figure, mounting plate structures 5 are installed at both ends of the light guide body 2.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0047] Based on the above, this utility model also has the following embodiments:

[0048] Example 2:

[0049] like Figure 6 As shown,

[0050] The difference from Example 1 is that:

[0051] In this embodiment, pattern 402 is any one or more combinations of star pattern, polygonal pattern or heart pattern.

[0052] In this embodiment, the pattern 402 is provided protruding or recessed in the optical unit 401, or a combination of both.

[0053] Example 3: A vehicle lamp, comprising a light guide structure from any of the above embodiments.

[0054] Compared with the prior art, the beneficial effects of this utility model are:

[0055] (1) This utility model reduces the height of the entire light guide structure and the width along the light output direction by designing the light guide body 2 as a long strip structure and setting the light output structure 3 and the micro-optical structure 4 on the two side walls of the light guide body 2 respectively.

[0056] (2) By setting an input end 1 at one or both ends of the light guide body 2, the width along the light output direction is further reduced. In addition, the long strip-shaped light guide body 2 has the effect of long light guiding distance, thereby improving the uniformity of light distribution.

[0057] (3) This utility model improves the uniformity of illumination of light emitted from the light-emitting structure 3 by setting a micro-optical structure 4 on the side wall of the light guide structure and using this structure to reflect and refract light. At the same time, polyhedral diamond patterns or other shaped patterns are set on the surface of the micro-optical structure 4, making the illumination effect unique and beautiful. The polyhedral diamond patterns form a starry visual effect through multi-angle scattering of light; other shaped patterns can realize the information interaction function between the vehicle and the outside world.

[0058] The above description is based on the preferred embodiments of this utility model. Through the above 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 by the scope of the claims.

Claims

1. An optical guide structure, characterized in that, include: The light-incident end (1) and the light guide body (2) are provided at one or both ends of the light guide body (2), and the light guide body (2) is provided in a long strip structure. A light-emitting structure (3) is provided on one side wall of the light guide body (2), and a micro-optical structure (4) for reflecting and refracting light is provided on the other side wall of the light guide body (2). The light-emitting structure (3) and the micro-optical structure (4) are arranged opposite to each other, and the micro-optical structure (4) is arranged randomly.

2. The optical guide structure as described in claim 1, characterized in that, The micro-optical structure (4) includes multiple optical units (401), each optical unit (401) is arranged in a direction opposite to the light-emitting structure (3), and each optical unit (401) is provided with multiple patterns (402) for reflecting and refracting light.

3. The optical guide structure as described in claim 2, characterized in that, The pattern (402) is a polyhedral diamond pattern, which is disposed on the optical unit (401).

4. The optical guide structure as described in claim 2, characterized in that, The pattern (402) is any one or more combinations of star pattern, polygonal pattern or heart pattern.

5. The optical guide structure as described in claim 2, characterized in that, The pattern (402) is provided in the optical unit (401) with protrusions or recesses, or a combination thereof.

6. The optical guide structure as described in claim 1, characterized in that, The radial cross-section of the light guide body (2) is a near-circular structure, and the maximum outline width of the near-circular structure is 6mm-10mm, or the radial cross-section of the light guide body (2) is a plate-like structure.

7. The optical guide structure as described in claim 1, characterized in that, The light-emitting structure (3) is provided with a horizontal stripe pattern (301), which extends along the length direction of the light guide body (2).

8. The optical guide structure as described in claim 1, characterized in that, The light-input end (1) is a light-concentrating structure.

9. The optical guide structure as described in claim 1, characterized in that, The light guide structure also includes a mounting plate structure (5), which is installed at one or both ends of the light guide body (2).

10. A vehicle light, characterized in that, Includes an optical guide structure as described in any one of claims 1-9.

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