Versatile horology component

1 . A horology component for a timepiece, wherein the component consists of:

a first portion,

a second portion, and

optionally a third portion arranged on top of or substantially even with the second portion or interposed between the first and second portion,

the first portion comprising a part made from at least one opaque material at least partially superposed on top of the second portion,

the second portion comprising a material capable of emitting at least one emission light wave if excited by at least one excitation light wave,

the part of the first portion comprising a structuration allowing an emission light wave emitted by the second portion to be transmitted at least partially toward the outside of the horology component so that the horology component exhibits at least a first appearance by day and at least one different second appearance by night where the first portion is backlit by an emission light wave emitted by the second portion,

wherein the structuration of the part of the first portion comprises openings with a diameter less than or equal to 60 μm and greater than or equal to 250 nm, and

each opening is an open-ended substantially diametrically uniform cylinder or a substantially diametrically uniform cylinder that passes all the way through the first portion and has a constant depth.

2 . The horology component as claimed in claim 1 , wherein the structuring of the part of the first portion allows an excitation light wave coming from outside the horology component to be transmitted at least in part to the second portion.

3 . The horology component as claimed in claim 1 , wherein the part of the first portion is formed in at least one material opaque to an excitation light wave exciting the second portion and/or to an emission light wave emitted by the second portion.

4 . The horology component as claimed in claim 1 , wherein the structuration of the part of the first portion comprises at least one selected from the group consisting of openings formed on an exterior surface, openings formed on an interior surface, openings formed in the thickness of the part of the first portion, and an ablation of the part of the first portion.

5 . The horology component as claimed in claim 1 , wherein the part of the first portion comprises structuring employing at least local modification to the transparency properties of a material of which the first portion is made.

6 . The horology component as claimed in claim 1 , wherein the part of the first portion comprises structuring invisible or barely visible to the naked eye by day.

7 . The horology component as claimed in claim 1 , wherein the part of the first portion comprises structuring distributed homogeneously.

8 . The horology component as claimed in claim 1 , wherein the first portion comprises at least one other part made of a homogeneous or heterogeneous at least partially transparent material, juxtaposed with at least one part comprising at least one opaque material comprising structuring.

9 . The horology component as claimed in claim 1 , wherein the second portion is in the form of a massive structure formed from a material having a phosphorescent and/or fluorescent property.

10 . The horology component as claimed in claim 9 , wherein the second portion is in the form of a fluorescent and/or phosphorescent ceramic.

11 . The horology component as claimed in claim 1 ,

wherein the second portion forms a support for the first portion, and/or

wherein the second portion comprises a fixing device for fixing the horology component on a timepiece.

12 . The horology component as claimed in claim 1 , wherein the second portion is in the form of a varnish comprising a fluorescent and/or phosphorescent property applied to at least one selected from the group consisting of an interior surface of the first portion, a hollow of the interior surface of the first portion, and a surface of another portion positioned facing the interior surface of the first portion.

13 . The horology component as claimed in claim 1 ,

wherein the first portion is in the form of a massive structure, or

wherein the first portion is in the form of a coating of the second portion.

14 . The horology component as claimed in claim 1 , wherein the first portion is made of mother-of-pearl; of fossil material; of tortoiseshell; of manganocalcite; of lepidolite; of petrified wood; of coral; of amber; of pearl; of ivory; of metal or of metal alloy; of engineering ceramic based on zirconia and/or alumina, pigmented or otherwise; of gemstone; of mineral; of stone or precious substance of organic origin; of sphalerite; of fluorite; of agate; of alexandrite; of amethyst; of anatase; of aventurine quartz; of calcedony; of chrysoberyl; of chrysoprase; of citrine; of jasper; of tiger's eye; of opal; of quartz; of spinel; of aragonite; of azurite; of malachite; of crocoite; of apatite; of lazulite; of turquoise; of aquamarine; of beryl; of tourmaline; of obsidian; or of snowflake obsidian.

15 . The horology component as claimed in claim 1 ,

wherein the component comprises a removable or nonremovable assembly between the first and second portions by bonding, or by a mechanical device, or by capillary adhesion, or

wherein the first portion is a surface coating of the second portion, or

wherein the second portion is a varnish applied under the first portion on an interior surface of the first portion or in a hollow of the interior surface of the first portion or on a surface of another portion, or

wherein the second portion is a varnish applied on another portion and the first portion is a coating applied to the varnish forming the second portion.

16 . The horology component as claimed in claim 1 ,

wherein the first portion has an average thickness less than or equal to 2 mm inclusive, and/or

wherein the second portion has a thickness greater than or equal to 0.01 mm, and/or

wherein the second portion has a surface area greater than or equal to 1 mm 2 .

17 . The horology component as claimed in claim 1 ,

wherein the component consists of the first portion, the second portion, and the third portion.

18 . The horology component as claimed in claim 17 ,

wherein the third portion is a mask, selective or otherwise, and/or

wherein the third portion comprises a fixing device for fixing the horology component, and/or

wherein the third portion supports several distinct parts of the second portion, and/or

wherein the third portion contributes to the function of assembling the first and second portions, and/or

wherein the third portion comprises optical elements.

19 . The horology component as claimed in claim 1 , wherein the component is a dial, a dial counter, an hour marker, a numeral marker, a bezel disk, or a decorative plate.

20 . A timepiece, wherein the timepiece comprises a horology component as claimed in claim 1 .