A vibration device includes a light transmitter, a vibrator to vibrate the light transmitter, a driver to drive the vibrator, and a controller configured or programmed to control the driver and determine a high-frequency-band resonant frequency of the vibrator according to a state of the driver obtained by changing a drive frequency of the driver within a high frequency band higher than or equal to about 100 kHz, and estimate a temperature of the light transmitter from the determined high-frequency-band resonant frequency.


    Access

    Download


    Export, share and cite



    Title :

    VIBRATION DEVICE AND VIBRATION METHOD


    Contributors:

    Publication date :

    2024-10-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B08B Reinigen allgemein , CLEANING IN GENERAL / 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 / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



    Vibration device and vibration method

    AKIYAMA JUN | European Patent Office | 2025

    Free access

    Vibration device and vibration method

    TANAKA YUKA / KISHI NORITAKA / NAKADOI TAKAHIDE et al. | European Patent Office | 2024

    Free access

    VIBRATION DEVICE AND VIBRATION METHOD

    AKIYAMA JUN | European Patent Office | 2023

    Free access

    VIBRATION DEVICE AND VIBRATION METHOD

    TANAKA YUKA / KISHI NORITAKA / NAKADOI TAKAHIDE et al. | European Patent Office | 2023

    Free access

    VIBRATION DEVICE AND VIBRATION CONTROL METHOD

    NISHIYAMA KENJI | European Patent Office | 2021

    Free access