PROBLEM TO BE SOLVED: To provide a vehicular head lamp capable of decreasing a number of components, reducing weight, and saving a cost, by simplifying the structure.SOLUTION: A vehicular head lamp 1 which stores LEDs 20, 21 which are light sources, a substrate 19 mounting the LEDs, and a reflector 17 reflecting light emitted from the LEDs 20, 21 toward a front side of a vehicle, in a lamp chamber 4 defined by a housing 2 and an outer lens 3 covering a front surface opening portion of the housing. In the vehicular head lamp 1, the LEDs 20, 21 and a light-up circuit 22 drive-controlling the LEDs are mounted on the one common substrate 19. For example, the substrate 19 is horizontally disposed on an upper surface of the reflector 17, and on a lower surface of the substrate 17, a plurality of each two of high-beam LEDs 20 and low-beam LEDs 21 is disposed in a width direction so as to make a light emitting direction downward, and on the reflector 17, a plurality of each two of high-beam reflection surfaces 17a and low-beam reflection surfaces 17b is formed in the width direction.SELECTED DRAWING: Figure 3
【課題】構造を単純化して部品点数の削減と軽量化及びコストダウンを図ることができる車両用前照灯を提供すること。【解決手段】ハウジング2とその前面開口部を覆うアウタレンズ3によって画成された灯室4内に、光源であるLED20,21とこれを実装する基板19、前記LED20,21から出射する光を車両前方に向けて反射させるリフレクタ17を収容して成る車両用前照灯1において、前記LED20,21とこれを駆動制御する点灯回路22とを1枚の共通の前記基板19上に実装する。例えば、前記基板19を前記リフレクタ17の上面に水平に配置し、該基板17の下面に、各2つのハイビーム用LED20とロービーム用LED21をその光出射方向が下向きとなるように幅方向に複数配置するとともに、前記リフレクタ17に、各2つのハイビーム用反射面17aとロービーム用反射面17bを幅方向に複数形成する。【選択図】図3
VEHICULAR HEAD LAMP
車両用前照灯
2017-05-18
Patent
Elektronische Ressource
Japanisch