Imaging apparatus

Abstract

An imaging apparatus includes: a first member that holds a lens; a second member to which the first member is fixed; and drive means for driving the second member in the vertical direction relative to an imaging plane of an imaging device, wherein the first member has diameters different from each other and a portion having a small diameter has a portion that engages the second member, and the drive means is disposed in a space created by the difference between the different diameters.

1 . An imaging apparatus comprising:
 a first member that holds a lens;   a second member to which the first member is fixed; and   drive means for driving the second member in the vertical direction relative to an imaging plane of an imaging device,   wherein the first member has diameters different from each other and a portion having a small diameter has a portion that engages the second member, and   the drive means is disposed in a space created by the difference between the different diameters.   
     
     
         2 . The imaging apparatus according to  claim 1 ,
 wherein the first member holds a plurality of lenses having diameters different from one another and is shaped to have diameters corresponding to the diameters of the lenses.   
     
     
         3 . The imaging apparatus according to  claim 1 ,
 wherein the drive means is a voice coil motor formed of a coil, a magnet, and a yoke,   the voice coil motor is disposed in the space, and   the coil of the voice coil motor is disposed on the side surface of the second member.   
     
     
         4 . The imaging apparatus according to  claim 1 ,
 wherein the drive means includes a piezoelectric device, a shaft connected to the piezoelectric device, and a hook which is connected to the second member and through which the shaft passes, and   the piezoelectric device, the shaft, and the hook are disposed in the space.   
     
     
         5 . The imaging apparatus according to  claim 1 ,
 wherein the drive means includes a wire made of a shape memory alloy, a hook to which the wire is hooked, and electrodes connected to the wire, and   the wire, the hook, and the electrodes are disposed in the space.   
     
     
         6 . An imaging apparatus comprising:
 a first member that holds a lens;   a second member to which the first member is fixed; and   a drive unit configured to drive the second member in the vertical direction relative to an imaging plane of an imaging device,   wherein the first member has diameters different from each other and a portion having a small diameter has a portion that engages the second member, and   the drive unit is disposed in a space created by the difference between the different diameters.