Vehicle lamp optical element, vehicle lamp module, vehicle headlamp and vehicle

Abstract

The invention relates to a vehicle lighting device. The invention discloses a vehicle lamp optical element. The vehicle lamp optical element comprises a light inlet part (11), a light passing part (12) and a light outlet part (13) which are sequentially connected, the light inlet part (11) comprises a plurality of light inlet surfaces (15) which are sequentially connected in the left-right direction, the light inlet surfaces (15) are curved surfaces protruding backwards in the optical axis direction, and the light outlet surfaces (15) are curved surfaces protruding forwards in the optical axisdirection. In addition, the invention further discloses a vehicle lamp module, a vehicle headlamp and a vehicle. The vehicle lamp optical element is small in size, high in optical precision, accuratein light pattern, convenient to install and low in cost.

Description

Technical field [0001] The present invention relates to a vehicle lighting device, in particular to a vehicle lamp optical element, and in addition, to a vehicle lamp module, a vehicle headlight and a vehicle. Background technique [0002] For night driving, the importance of automotive lighting systems, especially headlights, is self-evident. In the high-speed car driving, the dazzling high beam may cause the driver to lose control of the car, and then cause unpredictable danger. Car headlights must not only provide drivers with a wide range of vision and good visual conditions, but also affect other road participants as little as possible, and not dazzle other road participants. With the development of technology, matrix LED headlights have become one of the future development directions of automotive lights. The light source of the matrix LED high beam is composed of multiple LEDs, which are arranged in a certain way to form an array pattern. According to the position of th...

AI Technical Summary

Problems solved by technology

The reflector, light guide column and lens work together. Although the structure of the reflector, light guide column and lens is relatively simple, it is difficult for the three to be integrally formed, and they still need to be installed separately.

[0004] Since each optical element is installed separately, a lot of corresponding mounting brackets need to be provided, which complicates the structure of the car light module, and increases the volume of the car light module while increasing the cost of the car light module.

In the above-mentioned Chinese invention patent with application number CN109611780A, the installation structure and installation process of the lamp module are described in detail. Since the relative position accuracy between each optical element is to be ensured to ensure the optical performance of the lamp, the optical The manufacturing accuracy of the components and the positioning and installation accuracy of the lamp module are very high. Therefore, it is necessary to set up special installation structures, such as installation grooves, positioning grooves, etc.; special parts for installing various optical components, such as positioning columns, Pressure plate, mounting bracket, etc., which increase the manufacturing cost

[0005] As mentioned above, in order to pursue precise light patterns and diverse light pattern superposition methods, matrix lights are often bulky and expensive

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