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公开(公告)号：US08192062B2
公开(公告)日：2012-06-05
申请号：US12571869
申请日：2009-10-01
申请人： Masashi Tatsukawa
发明人： Masashi Tatsukawa
CPC分类号： F21S41/321 , F21S41/147 , F21S41/155 , F21S41/255 , F21W2102/00 , F21Y2115/10
摘要： A vehicular headlamp is provided. The vehicular lamp includes a projection lens disposed on an optical axis of a lamp extending in a longitudinal direction of a vehicle; a light source disposed on a rear side of a rear focal point of the projection lens; a reflector that concentrates the light emitted from the light source on the projection lens; and a shade disposed such that an upper edge of the shade extends through the vicinity of the rear focal point to block a part of the light reflected from the reflector. In plan view, the light source is disposed near the central axis of the reflector, and the reflector is disposed such that the central axis of the reflector intersects the optical axis of the lamp in a vicinity of the projection lens while being inclined toward the own lane of the vehicle on the front side.
摘要翻译： 提供车辆前照灯。 车灯包括设置在沿车辆的纵向方向延伸的灯的光轴上的投影透镜; 设置在所述投影透镜的后焦点的后侧的光源; 将从光源发射的光聚集在投影透镜上的反射器; 以及设置为使得阴影的上边缘延伸穿过后焦点附近以遮挡从反射器反射的一部分光的阴影。 在平面图中，光源设置在反射器的中心轴附近，并且反射器被布置成使得反射器的中心轴线在投影透镜附近与投影透镜的光轴相交，同时向着自己的方向倾斜 前方车辆的车道。
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公开(公告)号：US20080025036A1
公开(公告)日：2008-01-31
申请号：US11881427
申请日：2007-07-27
申请人： Kenichi Takada , Yusuke Nakada , Masashi Tatsukawa
发明人： Kenichi Takada , Yusuke Nakada , Masashi Tatsukawa
CPC分类号： B60Q1/12 , B60Q2300/45 , F21S41/147 , F21S41/255 , F21S41/321 , F21S41/36 , F21S41/365 , F21S41/39 , F21S41/43 , F21S41/47 , F21S41/657 , F21S43/50 , F21W2102/00 , F21Y2115/10
摘要： A vehicle headlamp includes a projection lens through which an optical axis passes. The optical axis extends in a front-and-rear direction of a vehicle. The vehicle headlamp includes a light source disposed on a rear side of a rear focal point of the projection lens; a reflector which reflects a direct light from the light source toward a front direction so as to become close to the optical axis; a shade disposed between the projection lens and the light source and having an edge portion positioned near the rear focal point of the projection lens; and an auxiliary reflector disposed between the projection lens and a shade. The auxiliary reflector reflects a part of the light reflected by the reflector toward the projection lens such that an upward irradiation light is irradiated from the projection lens. The shade shields a part of the light reflected by the reflector and a part of the direct light emitted from the light source and forms a cutoff line of a light distribution pattern. A space is provided between the auxiliary reflector and the shade so as to maintain a light quantity of at least 75% of a main light distribution obtained by the light reflected from the reflector.
摘要翻译： 车辆前照灯包括光轴通过的投影透镜。 光轴沿车辆的前后方向延伸。 车辆前照灯包括设置在投影透镜的后焦点的后侧的光源; 反射器，其将来自光源的直射光朝向前方向反射，以使其靠近光轴; 设置在投影透镜和光源之间并具有位于投影透镜的后焦点附近的边缘部分的阴影; 以及设置在投影透镜和阴影之间的辅助反射器。 辅助反射器将由反射器反射的光的一部分反射向投影透镜，使得从投影透镜照射向上的照射光。 阴影屏蔽由反射器反射的光的一部分和从光源发射的直接光的一部分，并形成配光图案的截止线。 在辅助反射器和遮光罩之间设置有空间，以保持由反射器反射的光所获得的主光分布的至少75％的光量。
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公开(公告)号：US20070177400A1
公开(公告)日：2007-08-02
申请号：US11657976
申请日：2007-01-25
申请人： Masashi Tatsukawa
发明人： Masashi Tatsukawa
IPC分类号： F21V7/00
CPC分类号： F21S41/155 , F21S41/147 , F21Y2115/10
摘要： A vehicle lighting device includes a reflection type lamp unit including a first LED that emits light downward; and a reflective face that reflects part of the light emitted by the first LED outward to the front of the vehicle lighting device. Part of the light emitted by the first LED is output, as directly emitted light, directly to the front of the vehicle lighting device. The reflective face includes a first reflective portion that reflects light as vertically almost parallel light and as horizontally diffused light, and a second reflective portion that reflects light below the light reflected by the first reflective portion and above the directly emitted light.
摘要翻译： 车辆照明装置包括反射型灯单元，其包括向下发光的第一LED; 以及将由第一LED发射的光的一部分向外反射到车辆照明装置的前方的反射面。 由第一LED发出的光的一部分直接作为直接发射的光直接输出到车辆照明装置的前方。 反射面包括将光线垂直地几乎平行的光和水平扩散的光反射的第一反射部分和将第一反射部分反射到第一反射部分反射的光之下并在直接发射的光之上的第二反射部分。
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公开(公告)号：US06634778B2
公开(公告)日：2003-10-21
申请号：US10141869
申请日：2002-05-10
申请人： Masashi Tatsukawa
发明人： Masashi Tatsukawa
IPC分类号： B60Q104
摘要： A vehicular headlamp capable of moving an auxiliary light distribution pattern in the horizontal direction by pivoting an auxiliary lamp fixture unit in which degradation in the visibility of the road surface ahead of the vehicle caused by movement of an auxiliary light distribution pattern is substantially reduced. The brightness of a low-beam light distribution pattern formed by a headlamp unit is partially reinforced with auxiliary light distribution patterns formed by a pair of auxiliary lamp fixture units. When the vehicle turns, one of the auxiliary light distribution patterns is moved in the same direction with an upward displacement, whereby sufficient visibility ahead of the vehicle is assured. As a result of this movement, the hot zone of the auxiliary light distribution pattern is separated from the hot zone of the low-beam light distribution pattern. Since the hot zone is moved on the road surface at a distance from the vehicle, the illumination intensity of the hot zone on the road surface ahead of the vehicle is reduced. Accordingly, the road surface ahead of the vehicle will not become relatively dark in a region between the hot zones of the basic and auxiliary light distribution patterns due to contrast with the hot zones.
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公开(公告)号：US06565250B2
公开(公告)日：2003-05-20
申请号：US10013347
申请日：2001-12-13
IPC分类号： F21V700
CPC分类号： F21V7/04 , F21W2107/00
摘要： A designing method of a reflective surface RS according to the present invention has a step of generating an XY curve Q on an XY plane including the X-axis (optical axis) and Y-axis; a step of, at each of a plurality of base points P existing on the XY curve Q, generating an XZ curve R on a plane (UZ plane) including the base point P and being parallel to a reflection direction of light at the base point P and normal to the XY plane; and a step of generating a surface shape of the reflective surface RS, based on the XY curve Q and the plurality of XZ curves R. This substantiates a method of designing a reflective surface of a reflector in a vehicle lamp with improved controllability of a light distribution pattern and with improved efficiency of a designing work.
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公开(公告)号：US06422726B1
公开(公告)日：2002-07-23
申请号：US09658225
申请日：2000-09-08
IPC分类号： B60Q104
CPC分类号： F21S41/435 , F21S41/164 , F21S41/336 , F21S41/36 , F21S41/365
摘要： A vehicle headlamp including a light source bulb installed on an optical axis that extends in a longitudinal direction of a vehicle, a reflector having a reflective surface for reflecting a light from the light source bulb forward, and a shade for blocking part of a light directly irradiated from the light source bulb. Still further, the shade is comprised of a shade body that surrounds a front-end portion of the light source bulb around the optical axis and a mount stay that supports the shade body and an outer circumferential surface of the shade body is provided with a corrugated diffusion portion formed thereon so as to diffusely reflect a light admitted thereto.
摘要翻译： 一种车载前照灯，包括安装在沿着车辆的长度方向延伸的光轴上的光源灯泡，具有用于将来自前述光源灯泡的光反射的反射面的反射器和用于直接阻挡部分光的阴影 从光源灯泡照射。 另外，遮光罩由围绕光轴的光源灯泡的前端部的遮光体和支撑遮光体的安装支架构成，荫罩体的外周面设置有波纹状 扩散部分形成在其上，以便漫射地反射进入其中的光。
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公开(公告)号：US5746491A
公开(公告)日：1998-05-05
申请号：US758943
申请日：1996-12-03
申请人： Masashi Tatsukawa
发明人： Masashi Tatsukawa
IPC分类号： F21S8/10 , B60Q1/04 , F21V5/00 , F21W101/10 , F21Y101/00 , B60Q1/00
CPC分类号： F21S48/1233
摘要： A vehicle head lamp in which an outer cover is provided in front of a light-distribution control unit, and substantially horizontally extending decorative lines are formed by glare-reducing steps on the inner surface of the outer cover.
摘要翻译： 在外罩的内表面上通过眩光减少台阶形成在配光控制单元的前面设置有外盖的大致水平延伸的装饰线的车顶灯。
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