IMAGING OPTICAL DEVICE AND CONTROL METHOD OF IMAGING OPTICAL DEVICE

PROBLEM TO BE SOLVED: To provide an imaging optical device that enables an appropriate determination of whether a panning operation or tilting operation is performed even when an angular velocity sensor is attached to a movable module having a lens and an image pickup element.SOLUTION: An imaging op...

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Bibliographic Details
Main Authors NAITO HAYATO, KARASAWA TOSHIYUKI, ISHIHARA HISAHIRO, WAIDE TATSUKI
Format Patent
LanguageEnglish
Japanese
Published 22.06.2015
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
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To provide an imaging optical device that enables an appropriate determination of whether a panning operation or tilting operation is performed even when an angular velocity sensor is attached to a movable module having a lens and an image pickup element.SOLUTION: An imaging optical device 1 comprises: a movable module 3 that has a lens and an image pickup element; a support body 4 that holds the movable module 3 in a way capable of oscillating the movable module: a spring member that connects the movable module 3 and the support body 4; an oscillation mechanism 5 that causes the movable module 3 to be oscillated with respect to the support body 4; and an angular velocity sensor 7 that is attached to the movable module 3, and detects a change in tilt of the movable module 3. A control unit of the imaging optical device 1 is configured to; detect a direction of a current flowing to drive coils 16 and 18 consisting of the oscillation mechanism 5; and when the direction of the current flowing to the drive coils 16 and 18 remains unchanged for a prescribed time, determine that at least any one of a panning operation of the imaging optical device 1 and tilting operation thereof is being performed. 【課題】レンズおよび撮像素子を有する可動モジュールに角速度センサが取り付けられていても、パンニング動作やチルティング動作が行われているか否かを適切に判別することが可能な撮影用光学装置を提供する。【解決手段】撮影用光学装置１は、レンズおよび撮像素子を有する可動モジュール３と、可動モジュール３を揺動可能に保持する支持体４と、可動モジュール３と支持体４とを繋ぐバネ部材と、支持体４に対して可動モジュール３を揺動させる揺動機構５と、可動モジュール３に取り付けられ可動モジュール３の傾きの変化を検出する角速度センサ７とを備えている。撮影用光学装置１の制御部は、揺動機構５を構成する駆動用コイル１６、１８に流れる電流の方向を検出し、駆動用コイル１６、１８に流れる電流の方向が所定時間変わらない場合に、撮影用光学装置１のパンニング動作およびチルティング動作の少なくともいずれか一方が行われていると判別する。【選択図】図１
Bibliography:Application Number: JP20130258408