| 摘要 |
PROBLEM TO BE SOLVED: To provide a display light emitting unit that is capable of making a plurality of display portions emit light with uniform brightness while the number of light sources is reduced.SOLUTION: A display light emitting unit 1 comprises: a light source 10 and a light guiding member 20. The light guiding member 20, which is arranged to face a light emitting surface 10a of the light source 10, has a columnar light incident guiding portion 30 at an end 30b of which a light incident surface 30a, which is an end surface on which light emitted from the light source 10 is incident, is formed, and a plurality of branched extending light guiding portions 40 which are branched from the light incident guiding portion 30, and which extend towards the back surfaces 121a of display portions 121. The light guiding member 20 makes the display portions 121 emit light by making light incident from the light incident surface 30a to be transmitted from end surfaces 40a of the branched extending light guiding portions 40. The light incident guiding portion 30 is provided with a branched portion 31, which is branched into the branched extending light guiding portions 40, at the side of the other end 30c opposite to the end 30b. The branched extending light guiding portions 40 have a cylindrical shape. The branched extending light guiding portions 40 are so formed that, when the lengths in the extending directions of the branched extending light guiding portions 40 are compared relatively, the end surfaces 40a of those which are longer have relatively larger areas. |
