| 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 46, a lower inside surface 48, an upper outside surface 50 and a lower outside surface 54; a full mirror layer 56 respectively covering the upper outside surface 50 and the lower outside surface 54 to enclose light inside of the facing ring 38; and a solar cell 32 which is disposed facing the lower inside surface 48 to receive light radiated from the lower inside surface 48. The facing ring 38 includes a bottom edge 44 in a rear surface side of a number plate 20 in a thickness direction. The lower outside surface 54 is a shape in which inclination of a normal is changed depending on a position of the point where the normal passes through. The inclination of the normal of the lower outside surface 54 approaches to the vertical direction that is the thickness direction of the facing ring 38 while the position of the point is closing to the bottom edge 44. |
