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Timepiece dial

A dial and mother-of-pearl technology, used in clocks, mechanically driven clocks, instruments, etc., can solve problems such as luminous intensity limitations

Active Publication Date: 2020-06-26
THE SWATCH GRP RES & DEVELONMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the luminous intensity of the decoration in the dark must be limited to ensure that the phosphorescent pigments on the front of the part are not visible when the dial is exposed to daylight

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] The present invention relates to a timepiece dial comprising: a support element; a mother-of-pearl wafer having a front and a back surface and at least partially covering the support element; and at least one decorative element provided on the reverse side of the mother-of-pearl wafer.

[0016] The support element is preferably metal. It can be made of brass, yellow or white gold, or silver, or any other suitable metal. It can be assembled on the mother-of-pearl wafer carrying the decorative element by electroplating, adhesive bonding or any other suitable method.

[0017] The decorative element is arranged to be visible on the front side of the mother-of-pearl wafer when stimulated, and not visible on the front side of the mother-of-pearl wafer when the stimulus is not present.

[0018] The decoration element defines at least a first empty area on the reverse side of the mother-of-pearl wafer, that is, the area on the reverse side of the mother-of-pearl wafer that is not occ...

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Abstract

The invention relates to a dial (1) which comprises a support element (2), a nacre wafer (4) having a front side and a rear side and at least partially covering the support element (2), and at least one decorative element (6) arranged on the rear side of the nacre wafer (4). The decorative element (6) is arranged to be visible on the front face of the nacre wafer (4) when being stimulated and to be invisible on the front surface of the nacre wafer (4) when not being stimulated and defines, around the decorative element (6), at least a first void area (10) on the rear side of the nacre wafer (4) and at least a second void area (12) on the front side of the nacre wafer (4), and the second void area (12) faces the first void area (10). The dial plate (1) comprises at least one color compensation layer (14), the at least one color compensation layer (14) is deposited in at least one of the first void area (10) and the second void area (12), and the color of the color compensation layer (14) is selected in such a way that in the absence of the stimulus, the color difference [delta] E between the color compensation layer perceived by a user viewing the front side of the nacre wafer and the decorative element in the CIE Lab color space is less than 3. The invention also relates to a timepiece comprising the dial.

Description

Technical field [0001] The present invention relates to a dial, which comprises a support element, a mother-of-pearl wafer having a front and a back surface and at least partially covering the support element, and at least one decorative element provided on the reverse surface, the decorative element being configured to act It is visible on the front side of the mother-of-pearl wafer when irritated, but not visible on the front side of the mother-of-pearl wafer when the stimulus is not present, and the decorative element defines at least around it on the reverse side of the mother-of-pearl wafer A first empty area and at least a second empty area located on the front surface of the mother-of-pearl wafer, the second empty area facing the first empty area. The invention also relates to a timepiece comprising such a dial. Background technique [0002] Because of its special aesthetic effect, the use of mother-of-pearl in the manufacture of dials is known in the watch industry. Mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B19/12G04B19/10
CPCG04B19/12G04B19/10G04B45/0015
Inventor A.马洛德尔N.弗朗科瓦A.穆斯克夫塔拉斯M.威利敏J-C.马丁C.戈维尔茨
Owner THE SWATCH GRP RES & DEVELONMENT LTD