Display plate for timepieces and method for fabricating the same
US6538959B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An indicating plate for a timepiece is provided which is so structured as to prevent viewing of the solar cell and other items arranged thereunder through the indicating plate, which permits the same design expression as realized by the conventional metallic indicating plate and extensively increases a design variation inclusive of a ton (delicate hue) and pattern with superior-quality appearance and which has an excellent appearance quality to thereby ensure and enhance commercial value. The indicating plate for the timepiece is a timepiece indicating plate arranged on the front surface side of a solar cell housed in a timepiece. The timepiece indicating plate comprises a resin substrate through which light can be transmitted and metallic thin film layer coating formed on at least one side of the resin substrate by dry plating. The timepiece indicating plate not only is capable of preventing viewing of the solar cell from outside thereof through the timepiece indicating plate but also has a light transmission at least sufficient to cause the solar cell housed under the timepiece indicating plate to generate power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.