Method for manufacturing luminescent hands

A method for manufacturing at least one luminescent hand for a horological movement, preferably for a watch;

• this manufacturing method comprising:
• providing at least one support supporting the luminescent hand;
• and
• forming on the at least one support a light guide comprising at least one emergent surface and being configured to guide a light, the forming step including the following sub-steps:
• depositing on said support at least one layer of a first optical material comprising a first refractive index and allowing preventing the light from being absorbed by the support;
• depositing at least one layer of luminescent material over the at least one layer of the first optical material;
• depositing of at least one layer of a second optical material;
• said at least one layer of a second optical material comprising a second refractive index;
• and,
• structuring said at least one emergent surface so that this emergent surface is rough so as to extract the light from said at least one light guide.

A luminescent hand for a horological movement comprising at least one:

• a support supporting the hand;
• and
• a light guide, said at least one light guide comprising at least:
• a layer of a first optical material comprising a first refractive index and allowing preventing light from being absorbed by the support;
• a layer of luminescent material over the at least one layer of the first optical material;
• a layer of a second optical material comprising a second refractive index;
• and
• an emergent surface configured to be rough so as to extract light from said at least one light guide.