| 摘要 |
An imaging apparatus includes an optical element forming an image of an object, a lens barrel retaining the optical element, an image pickup device section having an image pickup device and obtaining the image of the object, a mounting wall portion surrounding one end portion of the lens barrel at an object side, a lens-barrel side screw groove provided on an outer circumference surface of the lens barrel, and a screw fixation section provided on the mounting wall portion and screwing with the lens-barrel side screw groove to fix the lens barrel to the mounting wall portion while pressing the one end portion of the lens barrel to the mounting wall portion in a direction of a photographing optical axis.
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