| 摘要 |
<p>PURPOSE: To prevent a specific color from appearing along a brightness boundary line of a light distribution pattern by slanting the optical axis of a reflector against the optical axis of a projection lens so that light is incident on upper and lower the projection lens nearly equally, and by cancelling partial coloring resulting from the spectral action of the projection lens between the partial coloring caused by the upper part of the projection lens and the lower part thereof. CONSTITUTION: In a head lamp 1, a flux of light 6... whose lower side is shaded by a part containing the shading edge 3 of a shading body 7 is positioned at the focus fc of a projection lens 9 so that its image is forward projected as an inverted image, and by a light distribution pattern 10 a low beam is radiated. The optical axis Xm-Xm of a reflector 2 is slightly front-upward slanted against the optical axis X1-X1 of the projection lens 9 so that the light 6, 6,... is incident on upper and lower the projection lens 9 equally, and spectral characteristics are cancelled out. That is, on the upper side of the projection lens 9 a blue component 6B is, against a red component 6R, and on the lower side the red component 6R is relatively downward dispersed against the blue component 6B so that no specific color is allowed to appear on the light distribution pattern 10.</p> |
