Elektronische Uhr

Details

Veröffentlichungs-Nr.

EP3460590

Aktenzeichen

EP18195942

Anmeldetag

21. September 2018

Veröffentlichung

1. Januar 2020

Erteilung

1. Januar 2020

Rechtsraum

EP

IPC

G04R20/04G01S19/14G01S19/35G04B19/06G04C10/02G04G19/02G04G21/04G04R60/10

Abstract

An electronic timepiece includes an optically transparent dial, a solar battery disposed on a rear surface side of the dial, and an antenna disposed on a rear surface side of the solar battery so as to receive a radio wave. The solar battery includes one or more solar cells for generating power and a first non-power generating section which transmits the radio wave received by the antenna. The solar cell includes a metal electrode, a semiconductor layer stacked on the dial side of the metal electrode, and a transparent electrode stacked on the dial side of the semiconductor layer. The metal electrode and the transparent electrode are not disposed in the first non-power generating section, and the semiconductor layer is disposed in at least a portion of the first non-power generating section. The solar battery further includes a non-conductive member which adjusts light transmittance on the dial side of the semiconductor layer in the first non-power generating section.

Anmelder

Firma

Seiko Epson Corporation

Land

🇯🇵 Japan

Fachgebiete