The present invention relates to a rain sensor, providing a second reflection plate with a plurality of focuses to be entirely used for a vehicle requiring focuses, different from each other, in accordance with thickness of a glass unit. More desirably, the present invention relates to a multifocal rain sensor, providing the multifocal second reflection plate, having a phase difference in accordance with the thickness of the glass unit and receiving the entire reflected light entirely reflected, to collect the reflected light radiated to a wide area. Moreover, the multifocal rain sensor includes the second reflection plate reflecting the reflected light introduced in the horizontal direction and the vertical direction again to collect the same in a light receiving unit, thereby providing high light collection efficiency.
본 발명은 다수의 초점을 갖는 제2 반사판을 제공하여 유리부의 두께에 따라 서로 다른 초점을 요구하는 자동차에 모두 적용될 수 있는 레인센서를 제공하는바, 보다 바람직하게, 유리부 두께에 따라 위상차를 갖고 전반사되는 반사광을 모두 수광하도록 하는 다초점 제2 반사판을 제공하여 넓은 영역으로 조사되는 반사광을 집광시키며, 수평방향 및 수직방향으로 유입되는 반사광을 다시 반사하여 수광부로 집광되도록 하는 제2 반사판 구성을 포함하는 레인센서를 통해 높은 집광효율을 갖는 다초점 레인센서를 제공하는 기술이다.
Multi focus measuring rain sensor
다초점 레인센서
2018-06-04
Patent
Electronic Resource
Korean
IPC: | G01W METEOROLOGY , Meteorologie / 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 / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |