| CPC A61N 5/06 (2013.01) [A61N 2005/0628 (2013.01); A61N 2005/0659 (2013.01)] | 20 Claims |

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1. A non-contact therapeutic irradiation device comprising:
a light-emitting diode (LED) source configured to emit electromagnetic radiation in a predetermined spectral range;
a sensor configured to detect electromagnetic radiation in the predetermined spectral range of the electromagnetic radiation emitted by the LED source and to output a signal indicative of a power of the detected radiation, wherein a predetermined magnitude range begins with a threshold value corresponding to a predetermined non-zero distance between the non-contact therapeutic irradiation device and a subject to be treated; and
a controller configured to monitor a magnitude of the signal output by the sensor and to compare the magnitude of the signal with the predetermined magnitude range, wherein the magnitude of the signal lower than the predetermined magnitude range indicates the subject is too far away from the non-contact therapeutic irradiation device and is not receiving sufficient electromagnetic radiation in the predetermined spectral range,
wherein the controller is configured to identify a time period during which the magnitude of the signal output by the sensor is included in the predetermined magnitude range,
wherein the controller is configured to integrate the signal output by the sensor, if the magnitude of the signal is included in the predetermined magnitude range.
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