1. A light emitting device comprising: at least one source of electromagnetic radiation when the device is providing at least one operation of the radiation beam, the radiation opaque beam desktop housing comprising an outlet, wherein the radiation source provides radiation beam working, located in body, and wherein the radiation source provides a working beam of radiation, and an outlet disposed software capabilities working radiation beam output from the housing through the outlet during use, at least one second source of electromagnetic radiation, providing at least one probe of the radiation beam at the device at least one detector for recording the probing beam, at least one sensor box containing the contact boundary surface, wherein the detector is positioned so that when the device is a probe beam of radiation along the path from the radiation source that provides a probe beam of radiation to the detector at least once reflected from a boundary surface of the touch contact windows due to the total internal reflection at the boundary surface contact finding sensor window in contact with air and a controller operatively coupled to the radiation source, providing a working beam of radiation, and a detector configured to impact on the operation of the radiation source, which provides a working beam radiation, depending on the results of registration of the probe beam on detektore.2. Svetoizlu1. Светоизлучающее устройство, содержащее:по меньшей мере один источник электромагнитного излучения, при работе устройства обеспечивающий по меньшей мере один рабочий пучок излучения,непрозрачный для рабочего пучка излучения корпус, содержащий выходное отверстие,при этом источник излучения, обеспечивающий рабочий пучок излучения, расположен в корпусе, ипри этом источник излучения, обеспечивающий рабочий пучок излучения, и выходное отверстие, расположенные обеспечением возможности выхода рабочего пучка излучения из корпуса через выходное отверстие при работе устройства,по мень
