| 摘要 |
PURPOSE:To provide a zoom lens barrel in which the number of parts constituting a zoom lens system is small, whose assembly is easy, and which can accomplish the purpose of design by using an inexpensive member capable of highly accurate working. CONSTITUTION:In the zoom lens barrel constituted by housing the zoom lens system provided with a movable lens which can move in an optical axis direction through guide parts 121 and 122 in parallel with an optical axis in a lens barrel base substance 103, the guide parts 121 and 122 and a movable lens holding frame 123 are constituted so as to be engaged and separated in an orthogonal direction to the optical axis, and the holding frame 123 is just inserted from the orthogonal direction to be engaged with the guide parts 121 and 122, thereby simplifying an assembling stage. |
