Light emitting sign apparatus using optical fiber including solar-responsive light sensors

A light emitting sign apparatus using an optical fiber, comprising:

• an outer frame including an accommodation space having an opened front side, wherein the outer frame has at least one other side different than the opened front side;
• a front panel covering the opened front side of the outer frame, the front panel including a plurality of first front emission holes;
• a light source module entirely located in the accommodation space, the light source module including at least one light source of the light source module;
• a plurality of first front optical fibers having first ends directly connected to the plurality of first front emission holes and second ends optically coupled to the at least one light source;
• at least one outer illumination sensor located in the accommodation space;
• and
• a plurality of outer optical fibers having first ends directly connected to a plurality of outer emission holes provided at the at least one other side of the outer frame and second ends optically coupled to the at least one outer illumination sensor,
• wherein the plurality of first front optical fibers are different from the plurality of outer optical fibers.