An optical sensor is attached to a transparent board and includes: a light emitting element that applies light to the transparent board; a plurality of light receiving elements that receive light from the light emitting element, reflected by the transparent board; and a detection unit that detects the amount of rainfall based on output signals of the light receiving elements. The light emitting element applies light to one irradiation region in the transparent board. The light receiving elements correspond to the one irradiation region and the detection unit detects the amount of rainfall based on output signals of the light receiving elements corresponding to the one irradiation region.
OPTICAL SENSOR
01.10.2015
Patent
Elektronische Ressource
Englisch
IPC: | H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |