Patent ID: 8702772

Claim:
A device for dermatological use with one or a plurality of active components and a failsafe control, the failsafe control comprising: a light source configured to be toggled between an activated state and an inactivated state; a photosensitive detector configured to detect incoming light; and a processing unit configured to concurrently: monitor ambient lighting detected by the photosensitive detector when the light source is in the inactivated state, to determine whether the device is in close contact with a surface, which is indicative of a safe operating proximity of the device to the surface; determine whether light from the light source in the activated state, which was reflected from the surface is detected by the photosensitive detector is indicative of a safe operating proximity of the device to the surface; determine whether light from the light source in the activated state, which was reflected from the surface and received detected by the photosensitive detector falls within a predefined skin tonal range; and activate said one or a plurality of active components only upon the processing unit determining that the device is within the safe operating proximity, and that the light from the light source in the activated state, reflected from the surface is detected and indicative of the safe operating skin tonal range.