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    • 8. 发明授权
    • Light emitting unit
    • 发光单元
    • US09304250B2
    • 2016-04-05
    • US14510911
    • 2014-10-09
    • YAZAKI CORPORATION
    • Takahiro Hori
    • F21V8/00B60Q3/00B60Q3/04H01H13/83G02B6/28
    • G02B6/0096B60Q3/14B60Q3/66G02B6/0008G02B6/2817H01H13/83H01H2219/062
    • A light emitting unit includes a light source and a light guiding member. The light guiding member includes a light incident guiding portion that is arranged to face a light emitting surface of the light source and have a light incident surface, on which light emitted from the light source is incident, is formed at one end thereof, and a plurality of branched extending light guiding portions that are branched from the light incident guiding portion and extend towards back surfaces of a plurality of display portions. The plurality of branched extending light guiding portions are so formed that, the end surfaces of the branched extending light guiding portions have larger areas in accordance with increase of the lengths in the extending directions of the branched extending light guiding portions.
    • 发光单元包括光源和导光构件。 导光构件包括光入射引导部,该光入射引导部被布置为面对光源的发光表面,并且在其一端形成有从光源发射的光入射的光入射面,并且 多个分支延伸的光引导部分,其从光入射引导部分支并且朝向多个显示部分的背面延伸。 多个分支延伸导光部分被形成为使得分支延伸导光部分的端面根据分支延伸导光部分的延伸方向上的长度的增加而具有较大的面积。