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    • 2. 发明授权
    • Vehicle headlamp
    • 车头灯
    • US08123388B2
    • 2012-02-28
    • US12641003
    • 2009-12-17
    • Yasuhiro Ookubo
    • Yasuhiro Ookubo
    • F21V17/02
    • G02B19/0061F21S41/143F21S41/255F21S41/265F21Y2115/10G02B19/0014
    • A vehicle headlamp has semiconductor-type light sources and lenses. Emission surfaces of the lenses are made of free curved faces controlled to be curved so that: projection images of light emitting chips of the semiconductor-type light sources, which is emitted from the emission surfaces, are not convexly curved in an upward direction from cutoff lines on a screen light distribution of a light distribution pattern for low beam. As a result, the vehicle headlamp can achieve downsizing, weight reduction, and cost reduction. In addition, the precision of assembling an optical element can be improved.
    • 车辆前照灯具有半导体型光源和透镜。 透镜的发射表面由被控制为弯曲的自由弯曲面制成,使得从发射表面发射的半导体型光源的发光芯片的投影图像在从截止的向上方向上不是凸起弯曲的 用于近光的配光图案的屏幕上的线分布。 结果,车辆用前照灯可实现小型化,减轻重量并降低成本。 此外,可以提高组装光学元件的精度。
    • 4. 发明授权
    • Vehicle headlamp
    • 车头灯
    • US08201980B2
    • 2012-06-19
    • US12603317
    • 2009-10-21
    • Yasuhiro OokuboToshiya Abe
    • Yasuhiro OokuboToshiya Abe
    • F21V7/06B60Q1/04
    • F21S41/675F21S41/147F21S41/155F21Y2115/10
    • A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; movable reflectors having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; and semiconductor-type light sources, a respective one of which has a light emitting chip shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained on the reflecting surfaces of the fixed reflector. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained on the reflecting surfaces of the fixed reflector and the movable reflector. As a result, the vehicle headlamp enables downsizing, weight reduction, power saving, and cost reduction.
    • 车辆前照灯设置有:具有反射表面的固定反射器,其各自的一个由抛物线型自由曲面制成; 具有反射表面的可移动反射器,其相应的一个由基于抛物线的自由曲面制成; 半导体型光源,其各自具有像平面矩形的发光芯片。 当可移动反射器位于第一位置时,在固定反射器的反射表面上获得用于近光的配光图案。 当可移动反射器位于第二位置时,在固定反射器和可移动反射器的反射表面上获得用于高光束的配光图案。 结果,车辆用前照灯能够实现小型化,轻量化,省电,成本降低。
    • 8. 发明申请
    • VEHICLE HEADLAMP
    • 车用头灯
    • US20100110711A1
    • 2010-05-06
    • US12603317
    • 2009-10-21
    • Yasuhiro OOKUBOToshiya Abe
    • Yasuhiro OOKUBOToshiya Abe
    • F21V7/00
    • F21S41/675F21S41/147F21S41/155F21Y2115/10
    • A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; movable reflectors having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; and semiconductor-type light sources, a respective one of which has a light emitting chip shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained on the reflecting surfaces of the fixed reflector. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained on the reflecting surfaces of the fixed reflector and the movable reflector. As a result, the vehicle headlamp enables downsizing, weight reduction, power saving, and cost reduction.
    • 车辆前照灯设置有:具有反射表面的固定反射器,其各自的一个由抛物线型自由曲面制成; 具有反射表面的可移动反射器,其相应的一个由基于抛物线的自由曲面制成; 半导体型光源,其各自具有像平面矩形的发光芯片。 当可移动反射器位于第一位置时,在固定反射器的反射表面上获得用于近光的配光图案。 当可移动反射器位于第二位置时,在固定反射器和可移动反射器的反射表面上获得用于高光束的配光图案。 结果,车辆用前照灯能够实现小型化,轻量化,省电,成本降低。