Grey hair removal component, hair comb and system

A grey hair removal comb, comprising a body and a plurality of grey hair removal comb fingers, wherein the grey hair removal comb finger comprises a grey hair removal component comprising at least one housing, a sensing unit arranged at a first end of the housing, and at least one identification unit and at least one grey hair removal unit arranged in the housing;

• wherein the sensing unit, identification unit, and grey hair removal unit of the grey hair removal component act on an operation micro-area on the scalp surface;
• wherein the length and width of the operation micro-area are in the range of 0.09˜2 mm;
• wherein the sensing unit responds to contact of the component with the scalp and outputs a start signal;
• wherein each identification unit, in response to the start signal, identifies a grey hair in the operation micro-area, outputting a removal signal, and wherein a negative signal stops operations of each identification unit;
• wherein each grey hair removal unit, in response to the removal signal after a preset delay time, removes the identified grey hair in one action;
• and
• wherein only if the grey hair removal components of the grey hair removal comb are in contact with the scalp do the sensing units of the grey hair removal components make the identification units and the grey hair removal units of the grey hair removal components act, whereas for the other grey hair removal components of the grey hair removal combs not in contact with the scalp, the sensing units of the grey hair removal components do not make the identification units and the grey hair removal units of the grey hair removal components act.