| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out control of irradiation light from a lighting fixture unit with a superior precision after enhancing a utilization rate of a light flux against light from a light emitting element in a vehicular lighting fixture unit with the light emitting element as the light source. <P>SOLUTION: A front face 14a of a light translucent member 14 arranged so as to cover the light emitting element 12 from the front side is constituted with a rotating oval face in which the optical axis Ax is made as the center axis and in which a point in the vicinity of the light emitting element on the optical axis is made as a first focus F1 of the rear side. The center region 14a1 positioned in the vicinity of that optical axis is constituted as the light emitting face to emit the light from the light emitting element 12 forward, and the peripheral region 14a2 positioned at that circumferential side is constituted as a light reflecting face to internally reflect the light from the light emitting element 12 toward a second focus F2 of the rotating oval face. Furthermore, at the surrounding of the light translucent member 14, a reflector 16 to reflect the light forward from the light emitting element 12 which has been internally reflected in the peripheral region 14a2 and has been emitted from the center region 14a1 is installed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
