Patent ID: 8777935

Claim:
A dermatological treatment device comprising: an enclosed radiation chamber defined by: a radiation chamber housing, an output window at a first end of the radiation chamber housing and configured to be placed against a surface; a radiation source mount located at a second end of the radiation chamber housing opposite the first end, a source of treatment radiation supported by the radiation source mount at the second end of the radiation chamber and configured to emit treatment radiation though the enclosed radiation chamber and out through the output window, the treatment radiation configured to produce a fluence sufficient to provide a dermatological treatment; and a sensor system comprising: a sensor radiation source distinct from the source of treatment radiation and configured to emit radiation through the enclosed radiation chamber housing and toward the surface through the same output window, as the treatment radiation, and a sensor detector configured to detect sensor radiation emitted by the sensor radiation source and remitted by the surface, wherein the sensor radiation source and the sensor detector are arranged in openings defined in the radiation chamber, and wherein the sensor system configured to: measure radiation remitted via the surface; and control delivery of treatment radiation to the surface based on the measured remitted radiation.