| 摘要 |
PURPOSE:To improve the efficiency of electric energy and design by attaching a light transmittable solar battery to the glass surface, etc. of the dial. CONSTITUTION:Irradiated light energy 1 is converted to electric energy by a light transmittable solar battery 2' attached on a glass surface 2 or/and plateworked surface 7. Said energy is charged via a charging circuit 3 in a secondary battery 4 and the specified electric energy is supplied via an electronic circuit 5 to the timepiece driving circuit 6. The efficiency of the electric energy is thus improved by using the light transmittable solar battery and the design is improved as well. |
