An optical device for a vehicle according to an embodiment of the present invention is to generate a sound wave for providing acoustic information to a user while removing foreign matters attached to a protection member by vibrating the protection member provided to be exposed to the outside on an optical path of the optical device for a vehicle, and comprises: a housing having an opening; an optical module installed inside the housing; the protection member installed outside the opening of the housing; a piezoelectric element attached to the protection member; and a control unit for driving the piezoelectric element to vibrate the protection member to generate sound waves and to remove foreign matters adhered to the protection member.
본 발명의 실시예에 따른 차량용 광학 장치는 차량용 광학 장치의 광 경로 상에서 외부로 노출되게 구비되는 보호 부재를 진동시켜 보호 부재에 부착된 이물질을 제거하는 것과 함께 사용자에게 음향 정보를 제공하기 위한 음파를 발생시키기 위한 것으로, 개구를 갖는 하우징; 하우징의 내부에 설치되는 광학 모듈; 하우징의 개구에 외부로 노출되게 설치되는 보호 부재; 보호 부재에 부착되는 압전 소자; 및 압전 소자를 구동시켜 보호 부재를 진동시켜 음파를 발생시키는 것과 동시에 보호 부재에 부착된 이물질을 제거하는 제어 유닛을 포함할 수 있다.
OPTICAL DEVICE FOR VEHICLE
차량용 광학 장치
2018-03-09
Patent
Electronic Resource
Korean
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01S RADIO DIRECTION-FINDING , Funkpeilung |
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