Dimming mechanism for automotive lamp self-adaptive high beam lighting system and dimming method thereof

Abstract

The invention provides an automotive lamp self-adaptive dimming mechanism and a dimming method of the dimming mechanism. The automotive lamp self-adaptive dimming mechanism comprises a low beam unit (A) and a high beam unit (B), wherein the low beam unit (A) forms a low beam light shape, and the high beam unit (B) forms a high beam light shape. A lens forming the high beam unit (B) comprises n optically dense medium lens bodies (from 1a-1 to 1a-n) and corresponding to LED light sources, so that n high beam light shapes (from F1 to Fn) are formed, wherein the n lens bodies are optically dense medium lens bodies, and optically thinner medium lens bodies (1b) are arranged on the periphery of the n dense medium lens bodies and space the side portions of the n optically dense medium lens bodies. Adjusting assemblies (5) drive the high beam unit (B) to rotate leftwards and rightwards around a rotation center (4a), in this way, when a camera detects that an automobile comes from the opposite side or an automobile exists in the front, one or more LED light sources of the thinner medium lens bodies corresponding to the n high beam light shapes (from F1 to Fn) are extinguished, so that a plurality of high beam light shapes with vertical light and shade cut-offs are formed, and then a high beam avoids the automobile on the opposite side or in the front through the leftward rotation and rightward rotation of the high beam unit.

Description

technical field [0001] The invention relates to a vehicle lamp device, in particular to an adaptive dimming mechanism and a dimming method for a vehicle lamp adaptive high beam lighting system. The invention utilizes the principle that light is injected from an optically dense medium into an optically sparse medium to produce total reflection, combined with the on-off control of multiple LED light sources, to realize the illumination light shape required by the self-adaptive high-beam lighting system, and at the same time control the The position of the light illumination light shape, and the final adaptive high beam illumination light shape is realized through the combination of the left and right light shapes. Background technique [0002] The adaptive headlight lighting system can switch to different lighting modes according to road conditions, such as highway mode, urban road mode, country road mode, high beam lighting mode and adaptive high beam lighting mode, etc. The...

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Problems solved by technology

[0013] As a result, the structure of the adaptive dimming mechanism for the above-mentioned car lamp lighting is unstable, and it is difficult to control the lighting light shape accurately, and because the motor is used to adjust the position of the overall light shape of the far and near beams, its adjustment is not convenient. The adjusted parts are heavy and bulky, and the space structure is not compact enough

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