Method for tinting or decoloring a lens, lens obtainable by the method for tinting or decoloring a lens, lens comprising a tint or decolorization, lens holder and tinting device for tinting a lens

A second method for tinting or decoloring a lens, the second method comprising:

• inserting a lens into a lens holder;
• providing an immersion bath containing a first fluid;
• immersing the lens holder into the first fluid;
• and
• rotating the lens holder around a rotation axis to a predetermined maximum rotation angle, wherein the rotation axis is generally perpendicular to the plane of the lens;
• removing the lens holder from the immersion bath;
• rotating the lens;
• and
• immersing the lens holder into another immersion bath containing a second fluid, wherein the first fluid and the second fluid contain a tinting liquid or a decoloring liquid.

A third method for tinting or decoloring a lens, the third method comprising:

• inserting a lens into a reception unit of a lens holder;
• providing an immersion bath containing a first fluid;
• immersing the lens holder into the first fluid;
• rotating the lens holder around a rotation axis to a predetermined maximum rotation angle, wherein the rotation axis is generally perpendicular to the plane of the lens;
• removing the lens holder from the immersion bath;
• displacing the lens and the reception unit with respect to the lens holder in a direction parallel to a plane of the lens with respect to the rotation axis;
• and
• immersing the lens holder into a same immersion bath or another immersion bath containing a second fluid, wherein the first fluid and the second fluid contain a tinting liquid or a decoloring liquid.