1. An inspecting apparatus for detecting a defect of a glass bottle by imaging light from the glass bottle while the glass bottle is illuminated and rotated, and processing the obtained image, the inspecting apparatus comprising: a lighting device disposed at a predetermined position with respect to the glass bottle; a plurality of CCD cameras disposed around the glass bottle for imaging a specific part of the glass bottle; an angle detection device for detecting a rotation angle of the glass bottle with respect to a reference position; and an image processor for processing the images obtained by said CCD cameras; wherein said image processor stores rotation angle information detected by said angle detection device in such a manner that said rotation angle information corresponds to the image imaged by each of said CCD cameras.