| 摘要 |
An apparatus for electrically triggering water discharge is connected to an operating plate (1) and a sensor (31). The sensor (31) is arranged in the rearwards region, when viewed by a user triggering the water discharge, behind the operating plate (1). The operating plate (1) is a plate (1) which is transparent or translucent for light wavelengths which are visible to the human eye and for near-infrared wavelengths, and provides at least one indication surface region (42, 43) on the side that is remote from the user, whereas said indication surface region is provided with a partially transmissive coating (22, 23), behind which one or more light sources (10, 11) emitting light that is visible to the human eye are arranged. Furthermore provided is at least one signal-transmitter surface region (21), which is provided with a coating (21) 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. Finally provided is at least one sensor surface region (51; 52, 53) on the side that is remote from the user, which sensor surface region 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 one or more sensors (31; 32, 33) that are sensitive to infrared wavelengths are arranged. This ensures better function, while attaining a high visual standard and making use simpler and less noticeable for the user.
|
