Patent attributes
A lens barrel is provided which has a compact inner lens mechanism and is able to be manufactured in a small size at low cost. In the lens barrel according to the present invention, a number of shafts can be reduced by making a guiding shaft to be a common guiding shaft. In addition, a guiding shaft is formed only within a moving range of a zoom movable member, and a coil unit is disposed in a space positioned behind the guiding shaft, hence the whole lens barrel can be made compact. On the other hand, since the guiding shaft and a guiding shaft are formed separately, a sleeve section of the zoom movable member and a sleeve section of a focus movable member are made to have sufficient lengths, and also a sufficient length for sliding the respective movable members can be obtained.
