Laser skin treatment device with control means dependent on a sensed property of the skin to be treated

摘要

A skin treatment device having a laser radiation source for delivering coherent radiation to skin to be treated, a sensor for sensing at least one property of the skin and a controller. The controller is operable to control the radiation emitted from the laser radiation source in response to the property or properties sensed by the sensor. Preferably, the radiation source comprises a pulsed laser diode and the controller is operable to control at least one of its energy, pulse width and pulse interval. The sensor may be a pigment sensor, preferably a single chip blue, red and yellow detector, a pH sensor or a temperature sensor. The device is particularly suitable for the removable of hairs from the skin. A method of treating skin with laser radiation comprises sensing at least one property of the skin and delivering laser radiation to the skin according to the sensed property or properties.