LENS BARREL

• Main Authors: NIIYAMA TSUBASA, OTA MASAYA
• Format: Patent
• Language: English; Japanese
• Published: 19.03.2015
• 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; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

PROBLEM TO BE SOLVED: To shorten an entire length in a contraction state in lens barrels contractable and including a lens shift actuator.SOLUTION: A lens barrel including a lens shift actuator for a tremor correction comprises: a first lens drive part that drives a shift lens group hold frame holding a shift lens group and the lens shift actuator; and a second lens drive part that drives the lens group located on an image side of the shift lens group hold frame. When viewing in a direction along an optical axis, the second lens drive part is disposed at a position which is inside the shift lens group holding frame and does not overlap with the lens shift actuator. 【課題】伸縮可能でありレンズシフト用アクチュエータを備えたレンズ鏡筒において短縮状態時における全長の短縮化を実現する。【解決手段】本発明は、ブレ補正用のレンズシフト用アクチュエータを備えたレンズ鏡筒であって、シフト用レンズ群及び前記レンズシフト用アクチュエータを保持するシフト用レンズ群保持枠を駆動する第１のレンズ駆動部と、前記シフト用レンズ群保持枠の像側に位置するレンズ群を駆動する第２のレンズ駆動部と、を備え、前記第２のレンズ駆動部は、光軸に沿う方向から見た場合に、前記シフト用レンズ群保持枠の内側であって、前記レンズシフト用アクチュエータと重ならない位置に配設されている。【選択図】図９