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    • 6. 发明授权
    • Lighting circuit for vehicular discharge lamp
    • 用于车辆放电灯的照明电路
    • US5151631A
    • 1992-09-29
    • US760420
    • 1991-09-16
    • Goichi OdaAtsushi TodaSoichi YagiHiroki Shibata
    • Goichi OdaAtsushi TodaSoichi YagiHiroki Shibata
    • B60Q1/04H05B41/24H05B41/282H05B41/292
    • H05B41/2923
    • A lighting circuit for a vehicular discharge lamp for lighting a discharge lamp using a DC power supply, comprises an OFF state detector, a DC input voltage detector and a power cutoff means. The OFF state detector detects an OFF status of a discharge lamp. The DC input voltage detector detects if a DC input voltage is within a predetermined range. The power cutoff means inhibits power supply to the discharge lamp when the OFF status of the discharge lamp is detected by the OFF state detector and the DC input voltage lying off the predetermined range is detected by the DC input voltage detector, and permits power supply to the discharge lamp upon reception of a signal indicating that the DC input voltage has returned within that range.
    • 一种用于使用DC电源照明放电灯的车辆放电灯的点亮电路,包括OFF状态检测器,DC输入电压检测器和电源切断装置。 OFF状态检测器检测放电灯的OFF状态。 直流输入电压检测器检测直流输入电压是否在预定范围内。 当由OFF状态检测器检测到放电灯的OFF状态并且通过DC输入电压检测器检测到处于预定范围的DC输入电压时,电源切断装置禁止对放电灯的电力供给,并且允许向 在接收到指示DC输入电压已经在该范围内返回的信号时,放电灯。
    • 8. 发明授权
    • Vehicle headlight
    • 车头灯
    • US08827520B2
    • 2014-09-09
    • US13278638
    • 2011-10-21
    • Hiroki ShibataKazutami Oishi
    • Hiroki ShibataKazutami Oishi
    • B60Q1/00F21S8/10
    • F21S48/1773F21S41/686
    • There is provided a vehicle headlight. The vehicle headlight includes: a light source configured to emit light; a reflector reflecting the light; a projection lens projecting the light; a stationary shade blocking a part of the light emitted from the light source; a movable shade supported by the stationary shade as to move between a shielding position and a non-shielding position and configured to block a part of the light emitted from the light source; a drive mechanism including: a yoke; a coil disposed in the yoke; and an output shaft configured to move in an axial direction thereof in response to current supplied to the coil, and a transmission mechanism transmitting a driving force of the drive mechanism to the movable shade. At least a part of the yoke of the drive mechanism is formed in a single piece with the stationary shade.
    • 提供车头灯。 车辆头灯包括:被配置为发光的光源; 反射光的反射器; 投射透镜的投影透镜; 遮挡从光源发射的光的一部分的固定遮光罩; 由静止阴影支撑的可移动阴影,以在屏蔽位置和非屏蔽位置之间移动并且被配置为阻挡从光源发射的光的一部分; 驱动机构,包括:轭; 设置在所述轭中的线圈; 以及输出轴,其构造成响应于供给到所述线圈的电流而沿其轴向方向移动;以及传动机构,其将所述驱动机构的驱动力传递到所述可动阴罩。 驱动机构的轭的至少一部分与静止的遮蔽物形成为一体。
    • 10. 发明授权
    • Vehicular lamp
    • 车灯
    • US08227994B2
    • 2012-07-24
    • US12557556
    • 2009-09-11
    • Hiroki ShibataMikio UrushibataHideki Uchida
    • Hiroki ShibataMikio UrushibataHideki Uchida
    • B60Q1/14
    • B60Q11/005H05B33/089
    • The disclosure facilitates determining the presence of an abnormality of a light source in a vehicular lamp using, as a determination condition, a number of disconnected semiconductor light-emitting elements among multiple semiconductor light-emitting elements. The vehicular lamp includes a first light source block that has light-emitting diodes LED1 to LED6 connected in parallel; a second light source block that has light-emitting diodes LED7 to LED12 connected in parallel; and an abnormality determination circuit that controls a supply of current from an on-board battery to the light source blocks and determines whether an abnormality is presence in the light source blocks. The abnormality determination circuit determines the presence of an abnormality if the disconnected light-emitting diodes in one of the light source blocks exceed a predetermined number and current cannot flow to the light source block. In such case, the supply of current to the light source blocks is stopped.
    • 作为确定条件,多个半导体发光元件中的半导体发光元件的断开数量确定在车灯中确定光源异常的存在。 车灯包括并联连接的发光二极管LED1〜LED6的第一光源块; 具有并联连接的发光二极管LED7〜LED12的第二光源块; 以及异常判定电路,其控制从车载电池向光源块的电流供给,并且确定光源块中是否存在异常。 如果一个光源块中的断开的发光二极管超过预定数量,并且电流不能流向光源块,则异常确定电路确定是否存在异常。 在这种情况下,停止向光源块供给电流。