초록 ▼

A breathing apparatus with a display unit for the transmission of measured data via a display field of the display unit into the field of vision of a person wearing the unit. The readability of the measured data displayed is improved in daylight with simultaneously reduced energy demand. The display

A breathing apparatus with a display unit for the transmission of measured data via a display field of the display unit into the field of vision of a person wearing the unit. The readability of the measured data displayed is improved in daylight with simultaneously reduced energy demand. The display field includes an LC display, which is at least transparent for transmission radiation. An optical concentrator is provided, which collects the ambient light via a light entering surface and emits the collected light via a light exiting surface.

대표청구항 ▼

A breathing apparatus with a display unit for the transmission of measured data via a display field of the display unit into a field of vision of the person wearing the breathing apparatus, comprising: a breathing mask with mask body; an LC display forming said display field, said LC display being v

A breathing apparatus with a display unit for the transmission of measured data via a display field of the display unit into a field of vision of the person wearing the breathing apparatus, comprising: a breathing mask with mask body; an LC display forming said display field, said LC display being viewable from within the mask body, said LC display being transparent at least for transmission radiation, said breathing mask having a face shield, a tube being provided between said LC display and said face shield, whereby the transmission radiation emerging from the LC display is directed at least piece-wise through said tube to said face shield, a sealing element being provided between said tube and said face shield; an optical concentrator, including means disposed outside said mask body for collecting ambient light via a light entering surface and including means for emitting collected light via a light exiting surface toward said LC display, said optical concentrator being provided as said transmission radiation source for said LC display; an additional light source positioned for irradiating said LC display; and a photoelectric sensor positioned for detecting ambient light intensity, said photoelectric sensor being actively connected to said additional light source for controlling a light intensity of said additional light source as a function of the ambient light intensity.