To improve the degree of freedom of the layout of a light deflector.SOLUTION: A light deflector has: a reflection part; a first movable part 130b that is connected at one side to the reflection part; a second movable part 130a that is connected at one side to the reflection part; a first piezoelectric member that is provided on the first movable part and deforms the first movable part; a second piezoelectric member that is provided on the second movable part and deforms the second movable part; a first support part 140b that is connected to the other side of the first movable part; a second support part 140a that is connected to the other side of the second movable part; an input part that receives input of a voltage applied to the second piezoelectric member; and wiring that inputs the voltage input to the input part to the second piezoelectric member. The reflection part is provided between the first movable part and the second movable part. Passage areas are formed through which reflected light passes. The first support part is provided with a voltage input part that inputs voltage to at least the second piezoelectric member. The second piezoelectric member and the voltage input part are electrically connected by the wiring extending through the reflection part.SELECTED DRAWING: Figure 15

    【課題】光偏向器のレイアウト自由度を向上させること。【解決手段】光偏向器は、反射部と、反射部に一方が接続された第1の可動部130bと、反射部に一方が接続された第2の可動部130aと、第1の可動部に設けられ、第1の可動部を変形させる第1の圧電部材と、第2の可動部に設けられ、第2の可動部を変形させる第2の圧電部材と、第1の可動部の他方に接続された第1の支持部140bと、第2の可動部の他方に接続された第2の支持部140aと、第2の圧電部材に印加される電圧が入力される入力部と、入力部に入力された電圧を第2の圧電部材に入力する配線と、を有し、反射部は第1の可動部と第2の可動部との間に設けられ、反射された光が通過する通過領域が形成されており、第1の支持部には、少なくとも第2の圧電部材に電圧を入力する電圧入力部が設けられ、第2の圧電部材と電圧入力部は、反射部を介した配線によって電気的に接続されている。【選択図】図15


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    Title :

    LIGHT DEFLECTOR, DEFLECTING DEVICE, DISTANCE MEASURING DEVICE, IMAGE PROJECTION DEVICE, AND VEHICLE


    Additional title:

    光偏向器、偏向装置、距離測定装置、画像投影装置、及び車両


    Contributors:

    Publication date :

    2021-04-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B81B Mikrostrukturbauelemente oder -systeme, z.B. mikromechanische Bauelemente , MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G01S RADIO DIRECTION-FINDING , Funkpeilung / H10N



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    AKANUMA GOICHI / KOJIMA SHINICHI | European Patent Office | 2021

    Free access


    Wide Deflecting Operation Of Light Angular Deflector

    Suzaki, S. / Kawanabe, K. / Nagasawa, Y. et al. | IEEE | 1997



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    AKANUMA GOICHI | European Patent Office | 2018

    Free access