Distance light guide module and vehicle lamp module thereof

Abstract

The invention discloses a distance light guide module and a vehicle lamp module thereof. The automobile lamp module comprises a high-beam light guide module (1), a lens (4), a high beam LED circuit board (5), a low beam LED circuit board (8), a primary reflector (10) and a secondary reflector (9), wherein the primary reflector (10) and the secondary reflector (9) are used for forming a low beam shape. The LED light is reflected by a primary low-beam reflector and a secondary low-beam reflector, most of the light is refracted by the lens (4) and then emitted out, low-beam shape broadening (5-1)is formed on a light screen, the other small part of the light is reflected and refracted by the high-beam light guide module and then emitted out of the lens (4), and a low-beam shape cut-off line (5-2) and a III light shape (5-3) are formed. According to the invention, an optical element is subjected to integration, position precision among all the components is guaranteed, no noise is generated during high beam and low beam switching, the occupied space can be small, brightness changes of a specific area in the low beam shape are controlled, the ADB function is effectively achieved, the road surface irradiation effect of the automobile lamp is improved, a clear, comfortable and dazzling III-area light shape is provided, and the automobile driving safety performance is improved.

Description

technical field [0001] The present invention relates to a vehicle lamp, in particular, the present invention relates to a high beam light guide module and a vehicle lamp module thereof, wherein the vehicle lamp module is a vehicle lamp module integrating far and low beams of an LED light source. Background technique [0002] With the application of LED light sources in car lights, the technology of car light modules is constantly being introduced, and the shapes and structures are becoming more and more diverse, and the volume and weight are getting smaller and smaller. [0003] Existing LED light source car light modules generally need to be partially aluminum-plated on the radiator, and the aluminum-plated surface on the radiator and the light-shielding plate cooperate to form the III-zone light shape on the light screen. The necessary conditions are There is a structure to position part of the light emitted by the light source to irradiate the position of the III zone. ...

AI Technical Summary

Problems solved by technology

But in this way, the processing technology of parts is more complicated and the cost is higher

In addition, according to the existing high and low beam integrated car light module, in order to switch between the high and low beams, it is necessary to provide a sunshield part, which makes the car light module large in size and difficult to be applied to different car lights. Occasions, and the switching of far and low beams has a certain amount of noise

The optical model of Zone III is more complicated, and the light distribution is more difficult

[0005] In addition, the existing car light modules with the same high-beam light guide module are difficult to form a clear and regular low-beam cut-off line, and the luminous efficiency is not high. Generally, the luminous efficiency is about 45%, which affects its optical performance. To the ideal road lighting effect

[0006] At the same time, in the past, part of the residual light energy was wasted and could not be recycled, and in the case of limited luminous flux input of LED light sources, it is difficult for the output performance of the low beam to meet the luminous flux and brightness requirements required by assessment standards such as GM rating and IIHS rating. And it is difficult to avoid the generation of stray light, and ensure driving safety

[0007] Furthermore, according to the existing car lamp modules with the same high beam light guide module, it is difficult to form a flat lower boundary of the low beam light shape, because the lower boundary of the low beam light shape corresponds to the position on the road surface, which is near the front of the car. If the low-beam light pattern is uneven, and when it shines on the road, there will be an uneven lighting area near the front of the car, resulting in even worse lighting effects after the two lights are superimposed.

[0008] In addition, in the past, it was difficult to control the brightness change of a specific area in the low-beam light pattern, but the brightness change of a specific area in the low-beam light pattern is controlled by turning on and off a large number of LEDs. The number and the number of light-concentrating structures are large, and the entire module is relatively large, so it is difficult to apply to different car light installation occasions

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