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    • 18. 发明申请
    • Lighting device for vehicle
    • 车辆照明装置
    • US20050041436A1
    • 2005-02-24
    • US10895107
    • 2004-07-21
    • Hiroyuki Ishida
    • Hiroyuki Ishida
    • B60Q1/04B60Q1/12B60Q1/18F21S8/10F21V5/04F21V14/02F21V19/00F21Y101/02H01L35/24
    • B60Q1/12B60Q1/18B60Q2300/122B60Q2300/142F21S41/147F21S41/663F21S43/14F21S43/15F21Y2107/50F21Y2115/10
    • For light irradiation transversely inclined with respect to the front of a vehicle lighting device that reflects light from a plurality of semiconductor light emitting devices toward the forward part of the lighting device via reflector, a structure is provided in which lights emitted from five semiconductor light emitting devices are reflected toward the forward part of a lighting device via reflector. A reflecting surface of the reflector is a parabolic cylindrical curved surface having a focal line extended horizontally. The five semiconductor light emitting devices are on the focal line at an interval. Each of the directions of the emitted lights is varied for each semiconductor light emitting device with respect to the focal line direction. Consequently, the light emitted from each of the semiconductor light emitting devices is not diffused vertically but only horizontally, thereby forming five oblong light distribution patterns in positions shifted from each other horizontally.
    • 对于相对于通过反射器将来自多个半导体发光器件的光朝向照明装置的前部反射的车辆用照明装置的前方横向倾斜的光照射,提供了这样的结构,其中从发射 设备经由反射器朝向照明装置的前部反射。 反射器的反射表面是具有水平延伸的焦线的抛物面圆柱形曲面。 五个半导体发光器件间隔在焦线上。 对于每个半导体发光器件,发射光的每个方向相对于焦线方向是变化的。 因此,从每个半导体发光器件发射的光不是垂直扩散而是仅水平扩散,从而在水平地彼此偏移的位置形成五个长方形配光图案。
    • 19. 发明授权
    • Vehicular headlamp and design method therefor
    • 车载前照灯及其设计方法
    • US06773146B2
    • 2004-08-10
    • US10273271
    • 2002-10-18
    • Hiroyuki Ishida
    • Hiroyuki Ishida
    • G01D2102
    • F21S41/32F21S41/17F21S41/255F21S41/43
    • A method for designing a projection-type headlamp, and a projection-type headlamp produced thereby, that allows the position of a shade member and a light source to be set so that the luminous utilization efficiency is optimized for a given allowable height of the headlamp. Design values of the lens diameter and focal distance of the projection lens are set, and characteristics of the luminous utilization efficiency obtained in a case where the first focal point F1 and second focal point F2 of the reflector are changed are determined, and characteristics of the diffusion angle in the vertical light direction obtained in a case where the first focal point F1 and the second focal point F2 are changed are also determined. Then, the luminous utilization efficiency corresponding to the first focal point and the second focal point for a specified value of the diffusion angle are determined, and the first focal point and the second focal point where the luminous utilization efficiency becomes a maximum are determined. The luminous portion of the light source is placed at the thus-determined first focal point F1, and the upper edge portion of a shade member is located near the second focal point F2.
    • 一种用于设计投影型前照灯和由此制造的投影型前照灯的方法,其允许遮光构件和光源的位置被设定,使得对于前照灯的给定容许高度来说,优化照明利用效率 。 设置投影透镜的透镜直径和焦距的设计值,并且确定在反射器的第一焦点F1和第二焦点F2改变的情况下获得的发光效率的特性,以及 还确定了在第一焦点F1和第二焦点F2改变的情况下获得的垂直光方向上的扩散角。 然后,确定与扩散角的规定值对应的第一焦点和第二焦点的发光利用效率,并且确定发光效率变为最大的第一焦点和第二焦点。 光源的发光部分被放置在如此确定的第一焦点F1处,并且遮光部件的上边缘部分位于第二焦点F2附近。