TWM612658U - Auxiliary lighting device for motor vehicle - Google Patents

Abstract

An auxiliary lighting device for a motor vehicle includes a plurality of light sources, a first lens, and a second lens arranged in sequence. The plurality of light sources are arranged on the same plane, and a plurality of independent units are used to form a stepped first lens. Adjust the angle setting of the first lens to set the position of light deflection, and adjust the curvature of the light exit portion of the first lens and the step height drop between the independent units to generate different light paths, thereby improving the illumination of the left and right light sources At the same time, adjust the lighting area to the appropriate position to provide a clearer lighting pattern, so that the driver can see more clearly, and improve the safety of driving in the driving process.

Description

Auxiliary lighting device for motor vehicle

This creation is about an auxiliary lighting device used in motor vehicles and capable of improving the clarity of lighting.

The car lights help the driver to illuminate the route during the driving process, and can also let the other driver and the rear driver know the driving state of the vehicle (turning, braking, etc.). With the development of modern technology, more and more vehicles are introducing advanced driving assistance The system allows drivers to reduce physical exertion during driving and makes driving safer.

Adaptive Driving Beam (ADB) is an auxiliary lighting system based on an advanced driving assistance system that adjusts the light line of the car through intelligent induction. It can detect the position of the coming car or detect pedestrians, and adjust the light in a timely manner. The type achieves anti-glare effect and is friendly to other passers-by.

Common auxiliary lighting devices have their light sources on the same plane, and the light patterns on the left and right sides after being refracted by the lens are usually blurred, making it difficult for drivers to see the obstacles ahead clearly.

The purpose of this invention is to provide an auxiliary lighting device for motor vehicles and capable of improving the clarity of lighting.

According to the purpose of this creation, an auxiliary lighting device for a motor vehicle is provided, which includes a plurality of light sources, a first lens, and a second lens arranged in sequence, wherein the first lens is composed of a plurality of independent units, and the plurality of independent units Arranged in steps.

Each of the independent units respectively corresponds to a light source, and each of the independent units has an arc-shaped light-incident surface and an arc-shaped light-emitting surface, and the plurality of arc-shaped light-incident surfaces form a light-incident portion of a continuous convex arc surface , The plurality of arc-shaped light-emitting surfaces form a light-emitting portion of a continuous concave arc surface.

The first lens is tilted and deflected around an X-axis, and an included angle α is formed between a longitudinal section of the light-emitting portion and the XY plane; the first lens is deflected left and right around a Y-axis, and a cross-section of the light-emitting portion is There is an angle β between the XY planes.

Preferably, the second lens is a projection lens with a plano-convex aspheric surface and has a light coupling surface and a light exit surface opposite to the light coupling surface. The light emitted by the light sources is collimated and refracted by the light entrance part to the light exit The light forms a diffused light beam at the light-emitting portion and is refracted to the second lens. The diffused light beam is refracted by the light coupling surface to the light-emitting surface and then exits a short rectangular irradiation area.

Preferably, the first lens has a stepped shape that protrudes from two sides toward the middle.

In order to clearly illustrate the specific implementation, structure, and achieved effects of this creation, examples are provided and illustrated in conjunction with the drawings as follows:

Please refer to FIGS. 1 to 2 which illustrate an auxiliary lighting device for a motor vehicle, which includes a plurality of light sources 30, a first lens 10, and a second lens 20 arranged in sequence. The plurality of light sources 30 are arranged on the same plane, wherein The first lens 10 is composed of a plurality of independent units, which are arranged in a stepped manner and are integrally formed. The volume of each independent unit is different. Therefore, when the light generated by the light source 30 located on the same plane passes through , The light will produce different refraction paths.

In this embodiment, the first lens 10 is in the shape of a step that protrudes from the two sides to the middle position, that is, the independent unit located on the left and right sides has a smaller volume than the independent unit located in the middle position, and the light passes through the independent units on the left and right sides. The refraction path of the light generated by the unit and the independent unit passing through the middle position is different, so that the setting improves the clarity of the light pattern after the light on the left and right sides are projected, and at the same time, the illumination area is adjusted to an appropriate position.

In this embodiment, the first lens 10 is composed of five independent units and has five light sources 30. Each independent unit corresponds to a light source 30, and each independent unit has an arc-shaped light-emitting surface and A curved light-incident surface. The plurality of arc-shaped light-incident surfaces of the plurality of independent units make the first lens 10 form a light-incident portion 11 with a continuous convex arc surface, and the plurality of arc-shaped light-emitting surfaces of the plurality of independent units make the first lens 10 The lens 10 forms a light exit portion 12 with a continuous concave arc surface. After the light from the light sources 30 enters the light entrance portion 11, it is collimated and refracted to the light exit portion 12 to form a diffused beam and be refracted to the second lens 20.

The second lens 20 is a plano-convex aspheric projection lens with a light coupling surface 21 and a light exit surface 22 opposite to the light coupling surface 21. The diffused light beam is refracted to the light exit surface 22 after being refracted by the light coupling surface 21 The light-emitting surface 22 deflects light to generate individual short rectangular irradiation areas.

Referring to FIG. 3, the user can control the first lens 10 to tilt and deflection around an X axis according to the light trace requirements, so that an included angle α1, α2 is generated between a longitudinal section of the light exit portion 12 and the XY plane, or The first lens 10 is deflected left and right around a Y axis, and an included angle β1, β2 is generated between a cross section of the light emitting portion 12 and the XY plane, which is set by adjusting the included angle α1, α2, β1, β2 of the first lens 10 The position of the light deflection is matched to adjust the curvature of the light-emitting portion 12 of the first lens 10 and the step height difference between each independent unit, thereby improving the clarity of the light pattern after projection.

Please refer to FIGS. 4 to 6, which are diagrams of light paths and simulated light patterns generated after light passes through the first lens 10 and the second lens 20. After the light from the light source 30 enters the light incident portion 11, it is collimated and refracted to the After the light exit portion 12, a diffused light beam is formed and refracted to the second lens 20. The diffused light beam is refracted to the light exit surface 22 through the light coupling surface 21 and then deflected by the light exit surface 22 to generate individual short rectangular irradiation areas. FIG. 5 is a simulated light pattern diagram generated by a single light source through the first lens, and FIG. 6 is a simulated light pattern diagram when the light source 30 is fully bright.

In other implementation aspects of this creation, multiple sets of auxiliary lighting devices can be used in combination. Please refer to Figure 7. In this implementation aspect, two sets of auxiliary lighting devices are combined, and one auxiliary lighting device includes sequentially arranged A plurality of light sources 30A, a first lens 10A, and a second lens 20A. The first lens 10A is composed of six independent units and corresponds to the six light sources 30A; please refer to Figure 8 for the light sources of the two sets of auxiliary lighting devices The simulated light pattern of 30, 30A full brightness and Figure 9 are the simulated light pattern of the light source 30, 30A partially illuminated after the combination of two sets of auxiliary lighting devices. With the group and two sets of auxiliary lighting devices, the range of light projection can be increased. Broader is also clearer.

In addition, the auxiliary lighting device of this creation can be used with electronic control equipment and sensing equipment to be used in the intelligent auxiliary lighting of the headlight system.

This creation uses a plurality of independent units to form a stepped first lens 10. By adjusting the angles α1, α2, β1, β2 of the first lens 10, the position of light deflection is set, and the light output of the first lens 10 is adjusted together. The curvature of the portion 12 and the step height drop between the independent units enable different refraction paths when light passes through, thereby improving the illumination clarity of the left and right light sources, and at the same time adjusting the illumination area to an appropriate position to provide clearer illumination The light type allows the driver to see more clearly and improves the safety of driving in the process of driving.

α1, α2, β1, β2: included angle 10, 10A: the first lens 11: Light entrance 12: Light emitting department 20, 20A: second lens 21: Optical coupling surface 22: Glossy surface 30, 30A: light source

Figure 1 is an exploded view of the components of this creative implementation mode.

Figure 2 is a schematic diagram of the implementation of this creation

Fig. 3 is a schematic diagram of a cross section, a longitudinal section and an X-Y plane of the first lens.

Figure 4 is the light path diagram of this creation.

FIG. 5 is a simulated light pattern diagram generated by a single light source through a first lens in this creative embodiment.

Fig. 6 is a simulated light pattern diagram of the auxiliary lighting device's light source fully bright in the creative embodiment.

Figure 7 is a schematic diagram of the second implementation aspect of this creation.

Fig. 8 is a simulated light pattern diagram of the auxiliary lighting device in the second embodiment of the present creation when the light source is all bright.

Fig. 9 is a simulated light pattern diagram of the auxiliary lighting device light source partially illuminated in the second embodiment of the present creation.

10: The first lens

20: second lens

30: light source

Claims (8)

An auxiliary lighting device for a motor vehicle includes a plurality of light sources, a first lens and a second lens arranged in sequence, wherein the first lens is composed of a plurality of independent units, and the plurality of independent units are arranged in a stepped manner. The auxiliary lighting device for a motor vehicle according to claim 1, wherein each of the independent units corresponds to a light source, and each of the independent units has an arc-shaped light-incident surface and an arc-shaped light-emitting surface. The auxiliary lighting device for a motor vehicle according to claim 2, wherein the plurality of arc-shaped light-incident surfaces form a light-incident portion of a continuous convex arc surface, and the plurality of arc-shaped light-emitting surfaces form a light-emitting portion of a continuous concave arc surface . The auxiliary lighting device for a motor vehicle according to claim 3, wherein the first lens is deflected around an X axis, and an included angle α is formed between a longitudinal section of the light emitting portion and the XY plane; The Y-axis is deflected, and an included angle β is formed between a cross section of the light-emitting portion and the XY plane. The auxiliary lighting device for a motor vehicle according to claim 4, wherein the second lens is a plano-convex aspheric projection lens having a light coupling surface and a light emitting surface opposite to the light coupling surface. The auxiliary lighting device for a motor vehicle according to claim 5, wherein the light entrance portion of the first lens collimates and refracts the light rays of the light sources to the light exit portion, and the light rays of the light sources form a diffusion in the light exit portion The light beam is refracted to the second lens. The auxiliary lighting device for a motor vehicle according to claim 6, wherein the diffused light beam passes through the light coupling surface and the light exit surface of the second lens and then emits a short rectangular irradiation area. The auxiliary lighting device for a motor vehicle according to any one of claim 1 to claim 7, wherein the first lens is in the shape of a step that protrudes from two sides toward the middle.

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