公开(公告)号：US5532909A

公开(公告)日：1996-07-02

申请号：US288388

申请日：1994-08-03

申请人： Naoto Ban ,  Hiroshi Kawashima

发明人： Naoto Ban ,  Hiroshi Kawashima

IPC分类号： F21S8/10 ,  F21V7/00 ,  F21V7/04 ,  F21V7/09 ,  G02B5/10 ,  B60Q1/30

CPC分类号： F21S48/1352 ,  F21V7/04 ,  F21V7/09

摘要： A lamp reflector for a lamp that conforms to a vehicle body shape and method of producing such reflector, including a die therefor. The lamp reflector comprises a plurality of reflecting sections disposed about an optical axis of the lamp. Significant differences in light distribution at the boundaries between the reflecting sections are avoided by using a fundamental surface K of a reflecting surface 3 that may be generated as a free surface so as to conform to a vehicle body shape. After a reference curve is set on the fundamental surface K, several points P, P, . . . are specified on the reference curve. A very small reflecting surface R is determined at the point P according to the law of reflection so that a ray emitted from a light source and made incident on the point P is reflected to become a ray in parallel with the optical axis. Then, a tangential plane T of the fundamental surface at the point P is determined, and an outer product W of a normal vector N.sub.-- T of the tangential plane T and a normal vector N.sub.13 R of the very small reflecting surface R is calculated. A closed curve is generated by performing vector control in which the outer product W is employed as its tangential vector at each reflection point P around the optical axis, and connecting the tangential vectors by spline approximation.

摘要翻译： 一种符合车体形状的灯的灯反射器和制造这种反射器的方法，包括一个管芯。 灯反射器包括围绕灯的光轴设置的多个反射部分。 通过使用可以作为自由表面产生的符合车身形状的反射面3的基面K来避免反射部分之间的边界处的光分布的显着差异。 在基面K上设置参考曲线后，可以将几个点P，P， 。 。 在参考曲线上指定。 根据反射定律在点P处确定非常小的反射表面R，使得从光源发射并入射到点P上的光线被反射成与光轴平行的射线。 然后，确定点P处的基面的切线面T，并计算切线面T的法线矢量N-T的外积W和非常小的反射面R的法线向量N13R。 通过执行矢量控制来生成闭合曲线，其中使用外积W作为围绕光轴的每个反射点P处的切向矢量，并且通过样条近似来连接切向矢量。

公开(公告)号：US5707141A

公开(公告)日：1998-01-13

申请号：US684050

申请日：1996-07-22

申请人： Norimasa Yamamoto ,  Masahiro Maeda

发明人： Norimasa Yamamoto ,  Masahiro Maeda

IPC分类号： F21S8/10 ,  F21S8/12 ,  F21V7/00 ,  F21V7/09 ,  F21V13/04 ,  F21W101/02 ,  F21Y101/00 ,  F21V7/06

CPC分类号： F21S48/1145 ,  F21S48/1181 ,  F21S48/1317 ,  F21S48/1352 ,  F21S48/1376 ,  F21S48/20 ,  F21S48/24

摘要： A vehicle lamp which includes a reflection mirror, a front lens, and a light source arranged between the reflection mirror and the front lens. The central axis of the light source is perpendicular to the principal optical axis of the reflection mirror. On the reflection mirror, there is formed a reflection surface composed of a large number of reflection steps which are defined by portions of paraboloids of revolution and are formed between adjacent ones of closed curves. The closed curves are obtained as lines of intersection between a fundamental reflection surface and a group of paraboloids of revolution composed of a large number of paraboloids of revolution having different focal distances. Centers of the group of closed curves forming the boundaries of the reflection steps are arranged at a position distant from an intersection at which the principal optical axis of the reflection mirror crosses the reflection mirror, and square lens steps are formed on the front lens. Due to the foregoing, the arrangement of the image of the light source that has been projected by the reflection steps tend to be matched with the sections of the lens steps formed on the front lens.

摘要翻译： 一种车辆灯，包括反射镜，前透镜和布置在反射镜和前透镜之间的光源。 光源的中心轴垂直于反射镜的主光轴。 在反射镜上形成反射面，该反射面由大量反射台阶组成，由反转抛物面部分限定，并形成在相邻的闭合曲线之间。 闭合曲线作为由具有不同焦距的大量旋转抛物面组成的基本反射表面和一组旋转抛物面之间的交点线获得。 形成反射台阶边界的闭合曲线组的中心布置在远离反射镜的主光轴与反射镜相交的交叉点的位置处，并且在前透镜上形成方形透镜台阶。 由于上述原因，由反射步骤投影的光源的图像的布置倾向于与形成在前透镜上的透镜台阶的部分相匹配。

公开(公告)号：US5816679A

公开(公告)日：1998-10-06

申请号：US549547

申请日：1995-10-27

申请人： Masahiro Maeda

发明人： Masahiro Maeda

IPC分类号： G02B5/08 ,  F21S8/10 ,  F21V7/00 ,  F21V7/06 ,  F21W101/02 ,  F21Y101/00 ,  G02B5/10

CPC分类号： F21S48/1352

摘要： To form a reflection surface, a free curved surface conformed to a configuration of a car body is set for a fundamental surface of a reflection surface. A group of paraboloids of revolution having different focal distances are set, thereby to determine a group of closed curves as the lines of intersection of the fundamental surface and the group of paraboloids of revolution. Respective paraboloids of revolution are partially allotted to a portion between each pair of the adjacent closed curves of the closed curve group. As a result, a number of reflection steps arranged in multiple loops are formed in a state that the central part of the looped reflection steps is offset from the principal optical axis of the reflection mirror.

摘要翻译： 为了形成反射面，对于反射面的基面设定符合车体的构造的自由曲面。 设置一组具有不同焦距的旋转抛物面，从而确定一组闭合曲线，作为基本面与旋转抛物面组的交点。 旋转的抛物面部分被分配到闭合曲线组的每对相邻闭合曲线之间的部分。 结果，在环状反射步骤的中心部分偏离反射镜的主光轴的状态下，形成多个环形排列的多个反射台阶。

公开(公告)号：US4703401A

公开(公告)日：1987-10-27

申请号：US940542

申请日：1986-12-11

申请人： Takeo Ichihara ,  Shuichi Watanabe ,  Takashi Futami ,  Nobutaka Oda

发明人： Takeo Ichihara ,  Shuichi Watanabe ,  Takashi Futami ,  Nobutaka Oda

IPC分类号： F21S8/10 ,  F21V7/00 ,  F21V7/22 ,  F21V29/15 ,  F21V7/20

CPC分类号： F21S48/1352 ,  F21S48/32

摘要： In an automotive head lamp, an auxiliary reflector made of heat-resisting synthetic resin is integrally provided in the center portion of a reflector made of synthetic resin. The heat-resistant auxiliary reflector encircles the bulb.

摘要翻译： 在汽车头灯中，由合成树脂制成的反射镜的中心部分一体地设置由耐热合成树脂制成的辅助反射镜。 耐热辅助反射器环绕灯泡。

公开(公告)号：US5836668A

公开(公告)日：1998-11-17

申请号：US682920

申请日：1996-07-16

申请人： Masahito Ishikawa ,  Masahiro Maeda

发明人： Masahito Ishikawa ,  Masahiro Maeda

IPC分类号： G02B5/10 ,  B24B13/015 ,  F21S8/10 ,  F21V7/00 ,  F21V7/10 ,  B60Q1/04

CPC分类号： F21S48/1352 ,  B24B13/015 ,  F21V7/10

摘要： A method of forming a reflection surface of a reflection mirror of a vehicle lamp includes the following steps. A basic reflection surface is formed by preliminarily setting a basic reflection surface on which multiple paraboloids are to be formed, under a setting condition. Angles .theta. at which light that is emitted from a light source located at a focal point is incident on different positions on the basic reflection surface, are calculated, to thereby form a plural number of contours of equal incident angles on the basic reflection surface. A distribution of incident angles is evaluated on the basis of the contours of equal incident angles. If the result of the evaluation is good, the basic reflection surface is set as a final basic reflection surface. If it is no good, the setting condition is changed to another or other setting conditions, and the step of the preliminary setting and the step of the evaluation of the incident angle distribution are repeated under the changed setting condition or conditions. Through those steps, a basic reflection surface can reliably be set which has an incident angle distribution excellent in suppressing the generation of dark portions on the reflection surface to the minimum and at the same time securing a required solid angle of the reflection mirror.

摘要翻译： 形成车辆用灯的反射镜的反射面的方法包括以下步骤。 在设定条件下，预先设定要形成多个抛物面的基本反射面，形成基本反射面。 计算从位于焦点处的光源发射的光入射到基本反射面上的不同位置的角度θ，从而在基底反射面上形成多个相等入射角的轮廓。 基于相等入射角的轮廓来评估入射角的分布。 如果评价结果良好，则基本反射面被设定为最终的基本反射面。 如果不好，则将设定条件变更为其他设定条件，并且在改变后的设定条件下，重复进行初步设定的步骤和入射角度分布的评价步骤。 通过这些步骤，能够可靠地设定基准反射面，该入射角分布具有优异的抑制反射面上的暗部的产生的最小值，同时确保反射镜的所需立体角。

公开(公告)号：US5779340A

公开(公告)日：1998-07-14

申请号：US549531

申请日：1995-10-27

申请人： Masahiro Maeda

发明人： Masahiro Maeda

IPC分类号： G02B5/08 ,  F21S8/10 ,  F21V7/00 ,  F21V7/06 ,  F21W101/02 ,  F21Y101/00 ,  B60Q1/04

CPC分类号： F21S48/1352

摘要： To form a reflection surface, a free curved surface conformed to a configuration of a car body is set for a fundamental surface of a reflection surface. A group of paraboloids of revolution having different focal distances are set, thereby to determine a group of closed curves as the lines of intersection of the fundamental surface and the group of paraboloids of revolution. The respective paraboloids of revolution are partially allotted to a portion between each pair of the adjacent closed curves of the closed curve group, whereby a plural number of reflection steps are formed. The reflection steps are arranged about the central parts in multiple loops, and the central parts are offset from the principal optical axis of the reflection mirror.

摘要翻译： 为了形成反射面，对于反射面的基面设定符合车体的构造的自由曲面。 设置一组具有不同焦距的旋转抛物面，从而确定一组闭合曲线，作为基本面与旋转抛物面组的交点。 相应的旋转抛物面部分地分配给闭合曲线组的每对相邻闭合曲线之间的一部分，从而形成多个反射步骤。 反射步骤围绕多个环路的中心部分布置，并且中心部分偏离反射镜的主光轴。

公开(公告)号：US5777809A

公开(公告)日：1998-07-07

申请号：US686675

申请日：1996-07-26

申请人： Norimasa Yamamoto ,  Masahiro Maeda

发明人： Norimasa Yamamoto ,  Masahiro Maeda

IPC分类号： F21S8/10 ,  F21V7/00 ,  F21V7/09 ,  F21W101/14 ,  G02B5/10 ,  G02B5/08 ,  G02B7/182 ,  B60Q1/04

CPC分类号： F21S48/1352 ,  F21S48/23

摘要： A reflection mirror has reflection steps formed as portions of respective paraboloids of revolution and disposed between adjacent ones of closed curves formed as lines of intersection of a group consisting of the paraboloids of revolution with different focal distances and a fundamental surface for the reflection surface. The fundamental surface for the reflection surface includes a first curved surface portion and a second curved surface portion connected to the first curved surface portion in the n-th order continuity (N.gtoreq.1). The first curved surface portion is shaped such that when a light beam, which is emitted from a point light source supposed to lie on the principal optical axis of the reflection mirror, is reflected at a reflection point on the first curved surface portion, the light beam reflected thereat is directed substantially parallel to the principal optical axis of the reflection mirror. The second curved surface portion is shaped such that when a light beam, which is emitted from the point light source, is reflected at a reflection point on the second curved surface portion, the light beam reflected thereat is diffused in a given direction.

摘要翻译： 反射镜具有形成为相应的旋转抛物面的部分的反射台阶，并且被设置在由与不同焦距的旋转抛物面组成的组和反射面的基本面的交点的相邻的闭合曲线之间。 反射面的基面包括以n阶连续性（N> / = 1）连接到第一曲面部的第一曲面部和第二曲面部。 第一弯曲表面部分被成形为使得当从位于反射镜的主光轴上的点光源发射的光束在第一弯曲表面部分上的反射点处被反射时，光 反射的光束基本上平行于反射镜的主光轴。 第二弯曲表面部分被成形为使得当从点光源发射的光束在第二弯曲表面部分上的反射点被反射时，反射的光束沿给定方向扩散。

公开(公告)号：US5400226A

公开(公告)日：1995-03-21

申请号：US930388

申请日：1992-09-09

申请人： Henning Hogrefe

发明人： Henning Hogrefe

IPC分类号： F21S8/10 ,  F21V7/00 ,  F21V7/07 ,  F21V7/09 ,  F21V11/00 ,  F21W101/10 ,  F21Y101/00 ,  B60Q1/04

CPC分类号： F21S48/1352

摘要： A headlamp for motor vehicles, particularly high-beam headlamps has a reflector having a light outlet opening and also having a central region and a peripheral region with different reflecting surfaces, a discontinuity formed at the transition between the central and peripheral region, a light disc covering the light outlet opening of the reflector, and a luminous element arranged on a center axis of the reflector, so that images of the luminous element are reflected so as to be horizontally scattered by one of the regions and images of the luminous element are reflected in a center of a light distribution produced by the reflector by another of the regions.

摘要翻译： PCT No.PCT / DE91 / 01004 Sec。 371日期：1992年9月9日 102（e）日期1992年9月9日PCT 1991年12月21日PCT PCT。 公开号WO92 / 12379 日本1992年7月23日。一种用于机动车辆的前照灯，特别是远光前照灯具有具有出光口的反射器，并且还具有中心区域和具有不同反射面的周边区域，在中心 周边区域，覆盖反射器的出光口的光盘和布置在反射器的中心轴上的发光元件，使得发光元件的图像被反射，以便被其中一个区域水平散射，并且 发光元件的图像被反射器的另一个区域产生的光分布的中心反射。