| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic watch with a solar cell, which can improve power generation amount without impairing the beautiful appearance thereof.SOLUTION: An electronic watch with a solar cell comprises: a facing ring 38 including an upper inside surface 40, a lower inside surface 42, an upper outside surface 44 and a lower outside surface 46; a half mirror layer 50 covering the upper inside surface 40 to reflect a part of light and penetrate a part of light received at either the front face or the rear face thereof; a full mirror layer 52 respectively covering the upper outside surface 44 and the lower outside surface 46 to enclose light inside of the facing ring 38; and a solar cell 32 which is disposed facing the lower inside surface 42 to receive light radiated from the lower inside surface 42. A part of light injecting into the facing ring 38 is reflected by the half mirror layer 50 to return to inside of the facing ring 38. |
