OPTICAL VIBRATION-PROOF DEVICE, OPTICAL DEVICE, AND MAGNETIC SENSOR FIXING METHOD

• Main Authors: OKAMORI KAZUAKI, MISAWA MITSUFUMI
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2023
• 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; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To provide an optical vibration-proof device in which magnetic sensor for detecting a position of a lens for vibration compensation can be easily and accurately attached to a base member, and provide an optical device, and a magnetic sensor fixing method.SOLUTION: An optical vibration-proof device includes: a base member; a lens holding frame configured to be movable, relative to the base member, along a plane orthogonal to an optical axis; a magnetic material which integrally moves with the lens holding frame, and generates a magnetic field; a position detection Hall element 224 for detecting a change of the magnetic field according to the movement of the lens holding frame; and a sensor attachment member 240 which is fixed to the base member. The base member includes a positioning part 134, and positions the position detection Hall element 224 by a sensor attachment member 140 with the positioning part 134. The base member is constituted with a different member from the sensor attachment member 240.SELECTED DRAWING: Figure 11 【課題】振れ補正用のレンズの位置を検出する磁気センサを、簡単かつ精度よくベース部材に取り付け可能な光学防振装置、光学装置及び磁気センサ固定方法を提供する。【解決手段】光学防振装置は、ベース部材と、ベース部材に対して、光軸に直交する面に沿って移動可能に構成されたレンズ保持枠と、レンズ保持枠と一体に移動し、磁界を発生する磁性体と、レンズ保持枠の移動に応じた磁界の変化を検出する位置検出用ホール素子２２４と、ベース部材に固定されるセンサ取付部材２４０と、を備え、ベース部材は、位置決め部１３４を有し、センサ取付部材１４０によって、位置検出用ホール素子２２４を位置決め部１３４により位置決めするものであって、ベース部材は、センサ取付部材２４０とは別部材で構成される。【選択図】 図１１