A vehicle-mounted sensor to be mounted on a vehicle includes: a light emission unit that emits infrared light of a first wavelength range and infrared light of a second wavelength range into space outside the vehicle, a water molecule having respective different light absorption factors to the infrared light of the first wavelength range and the infrared light of the second wavelength range; a light detection unit that detects the infrared light of the first wavelength range and the infrared light of the second wavelength range separately; and a water detection unit that detects water in the space outside the vehicle on the basis of a difference between a light amount of the infrared light of the first wavelength range and that of the infrared light of the second wavelength range detected by the light detection unit.
Vehicle-mounted sensor, vehicle lamp, vehicle, and road surface state sensor
2018-11-06
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / G06V / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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