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    • 4. 发明授权
    • Vehicle headlamp
    • 车头灯
    • US06443606B1
    • 2002-09-03
    • US09688508
    • 2000-10-16
    • Mitsuyuki Mochizuki
    • Mitsuyuki Mochizuki
    • F21W10110
    • F21S41/692F21S41/17
    • A shade driving unit 24 provided in a vehicle headlamp is a solenoid for displacing a movable iron core 36 that pivots a movable shade to a high beam or a low beam position. An inverted diode parallel to the coil is connected to a solenoid driving circuit. A current is kept flowing through the coil by the induced electromotive force generated across the coil after the supply of power to the coil is cut off to gradually de-excite the movable iron core 36. Thus, the movable shade 22 is prevented from strongly butting against a positioning projected portion 26b.
    • 设置在车辆用前照灯中的灯罩驱动单元24是用于使可动铁芯36移动到可变阴影线到远光灯或者近光灯位置的螺线管。 平行于线圈的反相二极管连接到螺线管驱动电路。 在切断线圈供电之后,电流通过线圈产生的感应电动势保持流过线圈,以逐渐去激活可动铁芯36.因此,防止可动阴罩22强烈对接 抵靠定位突出部分26b。
    • 7. 发明授权
    • Vehicle headlamp
    • 车头灯
    • US07168832B2
    • 2007-01-30
    • US11063893
    • 2005-02-24
    • Motohiro KomatsuMasao KinoshitaMasahito NaganawaKenichi TakadaMitsuyuki Mochizuki
    • Motohiro KomatsuMasao KinoshitaMasahito NaganawaKenichi TakadaMitsuyuki Mochizuki
    • F21S8/10
    • G02B3/08F21S41/162F21S41/255F21S41/265F21S41/43
    • As the annular translucent member, an annular lens formed from a peripheral edge portion of a convex-meniscus lens is disposed between a projection lens and a reflector along an outer peripheral edge of the projection lens. Direct light from a light source toward a space beyond the outer periphery of the projection lens is caused to illuminate forward of the lamp by the annular lens, thereby effectively utilizing light source luminous flux. In relation to the above, a shape of a back surface of the annular lens is formed into a spherical surface having its center at a luminescence center of the light source. Accordingly, direct light from the light source can travel straight without being deflected by a back surface of the annular lens, whereby a light deflection angle on a front surface of the annular lens can be calculated easily and with good accuracy.
    • 作为环状的半透明构件,由凸凹透镜的周缘部形成的环状透镜沿着投影透镜的外周边缘配置在投影透镜和反射体之间。 使从光源向投影透镜的外周的空间的直接光通过环形透镜照射到灯的前方,从而有效地利用光源光通量。 关于上述,环形透镜的背面的形状形成为其中心在光源的发光中心的球面。 因此,来自光源的直射光可以直线行进而不会被环形透镜的背面偏转,从而可以容易且准确地计算环形透镜前表面上的光偏转角。