Solar battery powered watch
US5761158A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Mar 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C10/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A covering member (4), a solar battery (3) and a hand-operating mechanism-containing movement (2) are housed inside a case (1) which has a front side opening (1a), a glass (5) which is provided in the front side opening (1a), in the order of these constituents from the face side of the case (1). The solar battery (3) is disposed opposite to the glass (5) at a light receiving surface thereof which is covered with the covering member (4). The covering member (4) can also serve as a dial. If the covering member (4) is molded out of ceramic, it can provide the dial with a white appearance, so that light can sufficiently be transmitted to the receiving surface of the solar battery (3) owing to the light transmittance of the ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.