| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens barrel capable of individually managing and inspecting a mirror part, a lens holding part of an object side and a lens holding part of an imaging device side, being miniaturized even though a lens driving source is arranged, and securing lens performance through an assembling tool in accordance with the dimensions of finished condition of process without being affected by the irregularity of the machining accuracy of lenses and the lens holding members. SOLUTION: This zoom lens barrel of a curving zoom optical system in which an optical path is curved to an object side and an imaging device side through a variable mirror 4 is configured in a mirror frame structure that is divided into a first group lens frame 1 of the object side, a holding part of the variable mirror 4, a second group lens frame 2 holding a lens group of the imaging device side of lenses L2 to L5 , a third group lens frame 3 holding a lens L6 of the imaging device side and filters F1 and F2 , and a CCD holding frame 51 holding a CCD. |
