公开(公告)号：US5392111A

公开(公告)日：1995-02-21

申请号：US31468

申请日：1993-03-15

申请人： Nagatoshi Murata ,  Watanabe Shinichi ,  Manabu Tuchida

发明人： Nagatoshi Murata ,  Watanabe Shinichi ,  Manabu Tuchida

IPC分类号： G01M11/06 ,  G01J1/00

CPC分类号： G01M11/065 ,  G01M11/064

摘要： An optical axis of a headlight is measured by disposing a lattice member in front of the headlight. The lattice member has a plurality of longitudinally elongated lattice holes which are arranged in a form of a matrix. An illuminated area and an illuminance of light beams to be transmitted through the lattice member are measured at each of illuminating regions which are divided into a form of a matrix by the lattice holes. The position of a light source of the headlight is located from an illuminating region of maximum illuminated area and a position of an optical axis of the headlight is located from an illuminating region of maximum illuminance. The optical axis is adjusted depending on the located position of the light source and the position of the optical axis such that the inclination angle of the optical axis coincides with a set inclination angle. An illuminance distribution pattern is used to judge the type of headlight during adjustment of the optical axis of the headlight.

摘要翻译： 头灯的光轴通过在前灯的前方设置格子构件来测量。 格子部件具有以矩阵的形式排列的多个纵向细长的格子孔。 在通过格子孔分为矩阵形式的每个照明区域处测量透射通过格子构件的光束的照明区域和照度。 前照灯的光源的位置位于最大照明区域的照明区域，并且前照灯的光轴的位置位于最大照度的照明区域。 根据光源的定位位置和光轴的位置调节光轴，使得光轴的倾斜角与设定的倾斜角一致。 在调节前照灯的光轴时，使用照度分布图来判断前照灯的种类。