An optical device includes a protective cover, a housing, and a vibrating body that vibrates the protective cover by selecting, from multiple vibration modes in which the protective cover is vibrated, a cleaning mode in which vibration displacement of the protective cover becomes maximum and a higher-order heating mode in which the number of nodes is larger than that in the cleaning mode. In the heating mode, the position of the maximum vibration displacement in this vibration mode is within a region of the protective cover that corresponds to the field of view of the optical sensor.
OPTICAL DEVICE AND OPTICAL UNIT INCLUDING OPTICAL DEVICE
2021-03-18
Patent
Elektronische Ressource
Englisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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