LENS BARREL

To provide a lens barrel that has a smaller number of components, and includes a compact stationary lens holding structure.SOLUTION: A lens barrel comprises: a movable lens; a lens moving frame that holds the movable lens; a stationary lens; a stationary lens frame that holds the stationary lens; a...

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Bibliographische Detailangaben
1. Verfasser: HARADA SHINICHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a lens barrel that has a smaller number of components, and includes a compact stationary lens holding structure.SOLUTION: A lens barrel comprises: a movable lens; a lens moving frame that holds the movable lens; a stationary lens; a stationary lens frame that holds the stationary lens; a guide bar for moving the lens moving frame in a direction parallel to an optical axis; and a housing that holds the guide bar. The stationary lens frame includes a sleeve part provided with a first hole. The guide bar is inserted into the first hole to locate the stationary lens frame with respect to a direction perpendicular to the optical axis, and a first engagement part provided in the stationary lens frame is engaged with a second engagement part provided on the housing to locate the stationary lens frame with respect to a direction parallel to the optical axis.SELECTED DRAWING: Figure 4 【課題】部品点数が少なく、かつ、小型な固定レンズの保持構造を備えたレンズ鏡筒を提供する。【解決手段】レンズ鏡筒において、移動レンズと、前記移動レンズを保持するレンズ移動枠と、固定レンズと、前記固定レンズを保持する固定レンズ枠と、前記レンズ移動枠を光軸に平行な方向に移動させるためのガイドバーと、前記ガイドバーを保持する筐体を備え、前記固定レンズ枠は第1の穴を設けたスリーブ部を備え、前記第1の穴に前記ガイドバーを挿通させることで、前記固定レンズ枠を前記光軸に垂直な方向に関して位置決めさせ、かつ、前記固定レンズ枠に設けた第1の係合部を、前記筐体に設けた第2の係合部と係合させることで、前記固定レンズ枠を、前記光軸に平行な方向に関して位置決めさせる。【選択図】 図4