Patent Application
20130242583
1. Field of the Invention
The present invention relates to a light ring of vehicle lights, especially to a light ring of vehicle lights with features of easy assembly, time saving and labor saving.
2. Description of Related Art
A day time running light (DRL, also daytime running light or daytime lighting system) is a lighting device of vehicles during daylight conditions. The research results show that daytime running lights on the front of vehicles ensure that cars in traffic are better visible to oncoming cars and reduce risk of accidents in daylight hours. Moreover, they improve vehicle visibility and increase safety performance. Thus all motor manufactures are required to have DRLs on new vehicles in Europe.
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Therefore it is a primary object of the present invention to provide a light ring of vehicle lights with advantages of easy assembly, time-saving and labor-saving during the assembly.
In order to achieve the above object, a light ring of vehicle lights according to the present invention includes a light collection ring and a light emitting source. The light collection ring is a transparent body while the light emitting source consists of a plurality of light emitting diode (LED) chips. The LED chips are disposed on a substrate orderly and closely by bonding. The distance between two adjacent LED chips is ranging from 1 mm to 3 mm. The substrate is coated with a phosphor adhesive layer and the LED chips are also covered by the phosphor adhesive layer.
Once the light emitting source is applied with a voltage, the LED chips of the light emitting source emit light. The phosphor adhesive layer is excited by the light from the LED chip to generate energy as light. The light from the phosphor adhesive layer enters the incident surface to be emitted from the emission surface. Thus the light ring is used like DRL, providing warning effect and auxiliary illumination.
The incident surface of the light collection ring is disposed with refractive carved patterns in an orderly manner. The refractive carved patterns are in wave forms that rise and fall. The refractive carved patterns are in the form of sawtooth waves.
The light ring of vehicle lights is arranged circularly or linearly curved along with shapes of vehicle lights.
The light emitting source is formed by LED chips disposed on the substrate in a compact and orderly way by bonding while the distance between two adjacent LED chips is ranging from 1 mm to 3 mm. And the LED chips are also covered by the phosphor adhesive layer when the substrate is coated with the phosphor adhesive layer. Thus the plurality of LED chips and the substrate form an integrated part. Thus the light emitting source is assembled with the light collection ring directly. The assembly is easy and quick so that time and labor are saved.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein:
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The light collection ring 1 is a transparent body that is composed of an incident surface 11 facing the light emitting source 2 and an emission surface 12 far away from the light emitting source 2.
The light emitting source 2 consists of a substrate 21 and a plurality of light emitting diode (LED) chips 22. The LED chips 22 are arranged at the substrate 21 in a neat and compact way by bonding. The distance between two adjacent LED chips 22 ranges between 1 mm to 3 mm. A phosphor adhesive layer 23 is covered over the substrate 21 and the LED chips 22 are also covered by the phosphor adhesive layer 23.
Moreover, refractive carved patterns 13 are disposed on the incident surface 11 of the light collection ring 1. And the arrangement of the LED chips 22 is corresponding to the refractive carved patterns 13. In a preferred embodiment, the refractive carved patterns 13 are arranged orderly.
After being applied with the voltage, the LED chips 22 on the substrate 21 of the light emitting source 2 emit light and the light acts on the phosphor adhesive layer 23. After being excited by the light, the phosphor adhesive layer 23 releases energy in the form of light. The radiated light is refracted by the refractive carved patterns 13 on the incident surface 11 of the light collection ring 1, entering the light collection ring 1 and emitted out from the emission surface 12. The distance between two adjacent LED chips 22 is only from 1 mm to 3 mm. Due to such dense and compact arrangement of the LED chips 22, a light ring with high brightness and uniform illumination is formed.
The refractive carved patterns 13 on the incident surface 11 of the light collection ring 1 are in wave forms that rise and fall, especially in sawtooth waves.
In the above embodiments, the light ring of vehicles lights is arranged circularly in headlights, taillights or warning lights of automobiles or motorcycles.
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Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details, and representative devices shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalent.
