发明授权
US5556103A Structure of dartboards 失效
飞镖的结构

Structure of dartboards
摘要:
Improvements in the structure of electronic dartboards in which inside each sector-division and in distinct regions thereof there are lights of different colors, the internal lights being controlled by an additional electric circuit connected to the logic board of the electronic dartboard, which are seen through the holes in the front wall of each sector-division, the electrical connection is achieved by a change generated in the electrical resistance, the light source being provided in the rear portion of the rigid support, transparent, so that the light passes through the transparent board for electrical circuits printed, the playing area being illuminated owing to transparency from the bottom of the body of the playing area of the board to its final transparency stage and subsequently directly illuminating the internal front wall of the box and emerging to the exterior, filtered through the plurality of holes therein.
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