Light-emitting device for motor vehicle

Abstract

The invention provides a light-emitting device (100) for a motor vehicle. The light-emitting device comprises at least two light source assemblies. The light-emitting device (100) further comprises alight guide part (3). The light guide part (3) comprises a straight line section and an intersection section intersecting with the straight line section. A dichroic film (35) is arranged in the lightguide part (3). The dichroic film (35) is arranged in the mode that lights coming from the first light source assembly (1) can transmit through the dichroic film (35) and lights which are different from the lights coming from the first light source assembly (1) and come from the second light source assembly (2) can be reflected on the dichroic film (35). The light-emitting device for the motor vehicle integrates two functions, in addition, the light losses are low, and the light emitting efficiency is high.

Description

technical field [0001] The present invention relates to the technical field of vehicle devices, in particular, to a lighting device for motor vehicles. Background technique [0002] Lighting devices of motor vehicles include lighting and / or signal indicating devices and interior lighting devices, which usually only have a single function. Therefore, in existing motor vehicles, in order to meet the requirements of regulations, it is necessary to configure a separate lamp for each lighting or signal indicating function. The lighting or signal indication module, generally, the car is equipped with headlights, fog lights, tail lights, turn signals, brake lights, parking lights, reversing lights, position lights, daytime running lights, etc., so many The light-emitting device has many structural components and complicated installation procedures, which leads to an increase in cost; moreover, there are many power supply lines and control lines, resulting in a high failure rate. C...

AI Technical Summary

Problems solved by technology

[0002] Lighting devices of motor vehicles include lighting and / or signal indicating devices and interior lighting devices, which usually only have a single function. Therefore, in existing motor vehicles, in order to meet the requirements of regulations, it is necessary to configure a separate lamp for each lighting or signal indicating function. The lighting or signal indication module, generally, the car is equipped with headlights, fog lights, tail lights, turn signals, brake lights, parking lights, reversing lights, position lights, daytime running lights, etc., so many The light-emitting device has many structural components and complicated installation procedures, which leads to an increase in cost; moreover, there are many power supply lines and control lines, resulting in a high failure rate

At present, in motor vehicles, there is a lack of lighting devices integrating two or more lighting functions

[0003] In addition, light guides are increasingly used in lighting devices for motor vehicles. Compared with reflective lighting devices, light guides are used to prevent the light source from being directly seen and avoid glare. However, due to the oscillation of light in the light guide , bringing a certain amount of light loss and affecting the luminous efficiency

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