Patent ID: 8414566

Claim:
A photo-epilation device, comprising: a hand-held housing having a light output window opening; a light-generator mounted in the housing configured to generate high-intensity light in a broad ultraviolet to infrared spectral range suitable for effecting photo-epilation; a control device configured to switch on the light-generator in brief pulses having a pulse duration of one of 1 ms to 2 ms, 1.1 ms to 1.9 ms, and about 1.8 ms such that the fluence on skin level is in the range from 2 to 7 J/cm 2 per pulse; and a temperature sensor configured to sense a temperature of the light-generator, the temperature sensor is mounted in the housing and connected to the control device, wherein light-generator is switched on only as long as the temperature is below a threshold temperature.