Light distribution control apparatus of car lamps

Abstract

The intention relates to a light distribution control apparatus of car lamps. The purpose of the invention is to provide a low-cost light distribution control apparatus used for appropriately controlling the light distribution of car lamps configured in pairs. The light distribution control apparatus comprises a camera device (CAM) shooting image of an area in front of a car and a light distribution control unit. According to the image shot by the camera device (CAM), the light distribution control unit detects whether a front car at the area in front of the car. According to the position of the detected front car, the light distribution of the V-LoL of one lamp (RHL) of the coupled lamp (LHL, RHL) is changed. The camera device (CAM) is disposed at a position close to the lamp (V-LoL) in a left right direction.

Description

[0001] technology area [0002] The present invention relates to a light distribution control device for a lamp that illuminates an area in front of a vehicle such as an automobile, and more particularly to a light distribution control device that detects a vehicle in front of a vehicle and appropriately controls the light distribution. Background technique [0003] In order to prevent the glare of a preceding vehicle or an oncoming vehicle existing in front of the own vehicle, and to brightly illuminate the area in front of the own vehicle, a technology of controlling the light distribution of the headlight of the own vehicle has been proposed. Patent Document 1 proposes a technique of detecting the vehicle position ahead of the own vehicle, and performing light distribution control in which an additional light distribution pattern is added to a part of the low beam light distribution of the headlights based on the detected vehicle position, that is, By performing light distr...

AI Technical Summary

Problems solved by technology

[0007] In Patent Document 1, headlamps capable of adding an additional light distribution pattern to the low-beam light distribution are arranged on the left and right sides of the vehicle, but such headlamps having a structure for adding an additional light distribution pattern have complicated and expensive

In addition, as in Patent Document 2, the lamp in which the imaging element is built in the lamp body is large and expensive in order to secure a space for arranging the imaging element.

Therefore, when the lamp described in Patent Document 1 or 2 is applied to a headlight of an automobile and arranged on the left and right sides of the automobile, there is a problem that the entire headlight becomes larger and the overall cost of the headlight becomes extremely expensive.

In addition, the light distribution control mechanism for controlling the light distribution of such headlights must also control the structure of the light distribution of the left and right headlights respectively. The whole headlight or the light distribution control device including the light distribution control mechanism must become high cost

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