Thick-wall piece for improving large-angle brightness and vehicle lamp structure thereof

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to a thick-wall piece for improving large-angle brightness and a vehicle lamp structure thereof. The first total reflection part comprises a first total reflection surface and a second total reflection surface, and the first total reflection surface and the second total reflection surface are obliquely arranged relative to the light incident part, so that light rays emitted to the first total reflection surface and the second total reflection surface meet total reflection conditions; the second total reflection part is used for totally reflecting the light emitted by the second total reflection surface; and the light emitting part is used for emitting the light reflected by the second total reflection part. The first total reflection surface and the second total reflection surface are obliquely arranged relative to the light incidence part, light rays falling on the first total reflection surface and the second total reflection surface are reflected to the second total reflection part, the lighting effect is high, meanwhile, lighting is uniform, the large-angle brightness is synchronously improved, visual transparency is achieved, and the structure further has universality.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, and in particular to a thick-walled component capable of improving brightness at a large angle and a vehicle lamp structure thereof. Background Art

[0002] In traditional car lighting projects, due to the limitations of shape and space, most of the known solutions are direct or reflective, that is, after the light is emitted from the LED, it passes through a series of action devices and then emerges from the light-emitting surface to achieve a more uniform lighting effect of the car lights.

[0003] In traditional projects, especially headlights and taillights, the shapes are relatively tilted. Due to the shape restrictions, when the circuit board is placed diagonally, the LED light direction cannot be the positive direction of the system, so there is a problem of low efficiency. Utility Model Content

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides a thick-walled part and a car light structure for improving the brightness at a large angle, which can solve the problems of low system lighting efficiency, low side view brightness, high power consumption, and increased cost when the PCB is placed at an angle and the LED does not emit light in the forward direction.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a thick-walled part for improving large-angle brightness, including a light incident portion, which is used to receive light emitted by a light source; a first total reflection portion, the first total reflection portion includes a first total reflection surface and a second total reflection surface, the first total reflection surface and the second total reflection surface are inclined relative to the light incident portion so that the light incident on the first total reflection surface and the second total reflection surface both meet the total reflection condition; a second total reflection portion, which is used to totally reflect the light emitted from the second total reflection surface; and a light emitting portion, which is used to emit the light reflected by the second total reflection portion.

[0006] The thick-walled part of the utility model for improving the brightness at large angles has a first total reflection surface and a second total reflection surface that are inclined relative to the light incident part. The light falling on the first total reflection surface and the second total reflection surface is reflected onto the second total reflection part. While the lighting efficiency is high, the lighting is uniform and the brightness at large angles is also improved simultaneously. It is visually transparent and the structure is also universal.

[0007] Furthermore, the included angle between the first total reflection surface and the second total reflection surface is 70° to 110°.

[0008] Furthermore, the light incident portion is arc-shaped.

[0009] Furthermore, a connecting surface is provided between the first total reflection surface and the second total reflection surface.

[0010] Furthermore, the second total reflection portion has a stripe structure.

[0011] Furthermore, the light emitting portion adopts a corn kernel pattern.

[0012] Furthermore, the thick-walled part is made of PMMA or PC.

[0013] A vehicle lamp structure comprises the above-mentioned thick-walled component for improving brightness at large angles.

[0014] The beneficial effects of the utility model are:

[0015] 1. The first total reflection surface and the second total reflection surface are tilted relative to the light incident part, so that the light falling on the first total reflection surface and the second total reflection surface is reflected to the second total reflection part, which has high light efficiency, uniform lighting, and synchronously improved brightness at large angles, and the structure is visually transparent and universal;

[0016] 2. By setting the second total reflection part as a stripe structure, the diffusion can be increased, making the lighting more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the thick-walled component for improving the brightness at a large angle in the utility model.

[0019] Figure 2 It is a schematic diagram showing the light part in the utility model.

[0020] Figure 3 It is a schematic diagram of the first total reflection portion and the second total reflection portion along the direction from the light incident portion toward the light exit portion in the present invention.

[0021] Figure 4 It is a schematic diagram of the first total reflection surface and the second total reflection surface in the utility model.

[0022] Figure 5 It is a schematic diagram of the light incident part in the utility model.

[0023] Figure 6 It is a schematic diagram of the overall optical path of the thick-walled component in the utility model.

[0024] In the figure: 1, light incident part; 2, first total reflection part; 21, first total reflection surface; 22, second total reflection surface; 23, connecting surface; 3, second total reflection part; 4, light exit part. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] In the description of the present utility model, it is necessary to understand 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 indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model discloses a thick-walled part and a vehicle lamp structure thereof for improving brightness at a large angle.

[0028] Reference Figures 1 to 6 A thick-walled part and a vehicle lamp structure thereof for improving brightness at a large angle, comprising a light input portion 1, a first total reflection portion 2, a second total reflection portion 3 and a light output portion 4, wherein the light input portion 1 is used to receive light emitted by a light source, the first total reflection portion 2 comprises a first total reflection surface 21 and a second total reflection surface 22, the first total reflection surface 21 and the second total reflection surface 22 are arranged obliquely relative to the light input portion 1, so that the light incident on the first total reflection surface 21 and the second total reflection surface 22 both meet the total reflection condition. The second total reflection portion 3 is used to totally reflect the light emitted from the second total reflection surface 22, and the light output portion 4 is used to emit the light reflected by the second total reflection portion 3.

[0029] During operation, the first total reflection surface 21 and the second total reflection surface 22 are tilted relative to the light incident part 1, so that the light falling on the first total reflection surface 21 and the second total reflection surface 22 are all reflected onto the second total reflection part 3. While the light efficiency is high, the lighting is uniform and the brightness at a large angle is also improved simultaneously. The structure is visually transparent and has universality.

[0030] Specifically, a plurality of first total reflection surfaces 21 and second total reflection surfaces 22 are arrayed along the X-axis direction to form a sawtooth shape. After the light is emitted from the light incident portion 1, it first falls on the first total reflection surface 21, and then is reflected by the first total reflection surface 21 to the second total reflection surface 22. The angle between the first total reflection surface 21 and the second total reflection surface 22 is 70° to 110°, so that the light incident on the first total reflection surface 21 and the second total reflection surface 22 can meet the total reflection condition.

[0031] Furthermore, the light incident portion 1 is arc-shaped.

[0032] Furthermore, a connecting surface 23 is provided between the first total reflection surface 21 and the second total reflection surface 22 .

[0033] In addition, the second total reflection part 3 is also tilted relative to the first total reflection part 2, so that the light falling on the second total reflection part 3 meets the total reflection condition, and the second total reflection part 3 has a stripe structure. The light emitting part 4 can adopt a corn grain pattern to make the light emission more uniform. The thick wall material can be PMMA or PC.

[0034] It should be noted that the LED light color is not limited, and the light color of the same lighting area can be switched according to the scene requirements. For example, when changing lanes, the yellow light of the turn signal is lit; when braking, it is switched to red light, and when reversing, it is switched to white light. As long as it is reasonably combined with electronic design, the optical form of the utility model can be flexibly applied to a variety of scenes.

[0035] In a second aspect, the utility model discloses a vehicle lamp structure.

[0036] A vehicle lamp structure comprises the above-mentioned thick-walled component for improving brightness at large angles.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A thick-walled part for improving brightness at large angles, characterized in that: include A light input portion (1), used for receiving light emitted by a light source; A first total reflection portion (2), the first total reflection portion (2) comprising a first total reflection surface (21) and a second total reflection surface (22), the first total reflection surface (21) and the second total reflection surface (22) being arranged obliquely relative to the light incident portion (1), so that light rays incident on the first total reflection surface (21) and the second total reflection surface (22) both meet total reflection conditions; A second total reflection portion (3) is used to totally reflect the light emitted from the second total reflection surface (22); The light emitting portion (4) is used for emitting the light reflected by the second total reflection portion (3).

2. The thick-walled component for improving brightness at large angles according to claim 1, characterized in that: The included angle between the first total reflection surface (21) and the second total reflection surface (22) is 70° to 110°.

3. The thick-walled component for improving brightness at large angles according to claim 1, characterized in that: The light incident portion (1) is in an arc shape.

4. The thick-walled component for improving brightness at large angles according to claim 1, characterized in that: A connecting surface (23) is provided between the first total reflection surface (21) and the second total reflection surface (22).

5. The thick-walled component for improving brightness at large angles according to claim 1, characterized in that: The second total reflection portion (3) has a stripe structure.

6. The thick-walled component for improving brightness at large angles as claimed in claim 1, characterized in that: The thick-walled part is made of PMMA or PC.

7. A vehicle lamp structure, characterized in that: A thick-walled part for improving brightness at large angles as described in any one of claims 1 to 6.

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