DRIVING DEVICE, IMAGING APPARATUS, METHOD FOR CONTROLLING DRIVING DEVICE, AND PROGRAM

To provide a driving device that can achieve drive with high output and high accuracy.SOLUTION: A driving device has: a plurality of vibrators (1052, 1053); at least one movable body (1051) that is in contact with the plurality of vibrators; drive signal generation units (1128, 1129) that generate d...

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Bibliographic Details
Main Author OGAWA RYOTA
Format Patent
LanguageEnglish
Japanese
Published 15.04.2021
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
GENERATION
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:To provide a driving device that can achieve drive with high output and high accuracy.SOLUTION: A driving device has: a plurality of vibrators (1052, 1053); at least one movable body (1051) that is in contact with the plurality of vibrators; drive signal generation units (1128, 1129) that generate driving signals applied to the plurality of vibrators to move the movable body; a target position setting unit (1123) that sets a target position of the movable body; a position detection unit (1056) that detects a position of the movable body; drive control units (1125, 1126) that determine waveforms of the driving signals on the basis of a difference between the target position set by the target position setting unit and the position of the movable body detected by the position detection unit; a control system setting unit (1124) that sets a control system for the drive control units; and a mode switching unit (1132) that switches a driving mode of the plurality of vibrators on the basis of the control system for the drive control unit.SELECTED DRAWING: Figure 2 【課題】高出力かつ高精度の駆動を実現可能な駆動装置を提供する。【解決手段】駆動装置は、複数の振動体（１０５２、１０５３）と、複数の振動体と接触する少なくとも一つの移動体（１０５１）と、複数の振動体に印加され移動体を移動させるための駆動信号を生成する駆動信号生成部（１１２８、１１２９）と、移動体の目標位置を設定する目標位置設定部（１１２３）と、移動体の位置を検出する位置検出部（１０５６）と、目標位置設定部で設定された目標位置と位置検出部で検出された移動体の位置との差に基づいて、駆動信号の波形を決定する駆動制御部（１１２５、１１２６）と、駆動制御部の制御方式を設定する制御方式設定部（１１２４）と、駆動制御部の制御方式に基づいて、複数の振動体の駆動モードを切り替えるモード切り替え部（１１３２）とを有する。【選択図】図２
Bibliography:Application Number: JP20190185766