Apparatus for electrically triggering water discharge
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United States of America Patent
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Nov 18, 2014
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app pub date -
Mar 8, 2012
filing date -
Mar 9, 2011
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Abstract
An apparatus for electrically triggering water discharge is connected to an operating plate (1) and a sensor (31) that is arranged in a rearwards region. The operating plate (1) is transparent or translucent for human visible and infrared light wavelengths and provides at least one indication surface region (42, 43). The indication surface region has a partially transmissive coating (22, 23), behind which are one or more light sources (10, 11) emitting light that is visible to the human eye. At least one signal-transmitter surface region (21) is provided with a coating that is non-transmissive for light that is visible to the human eye and is transparent or translucent for infrared wavelengths, behind which light sources (20), which emit one or more infrared wavelengths, are arranged. At least one sensor surface region (51; 52, 53) is disposed remote from the user and has a coating that is non-transmissive for light that is visible to the human eye and is transparent or translucent for infrared wavelengths, behind which are one or more sensors (31; 32, 33) that are sensitive to infrared wavelengths.
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