| 摘要 |
PURPOSE:To inspect flaws, dirts, marks and the like after removing noises therefrom by rotating the container so as to prevent noise lights generated from entering the inspection view range, provided that the rotation thereof is stopped when the noise disappears. CONSTITUTION:A lower holder 2 supporting the bottom of an ampul to be inspected receives the rotation from a high speed belt 4 and a liquid filled in the ampul rotates continuously due to an inertia even when separated from the belt 4. As the ampul enters the view range of a TV camera 5, a low speed rotating unit 6 of the lower holder acts to confine flaws, dirts and the like on the circumferential surface of the ampul into such as area which reflects no light. A blind point corrector 9 turns the lower holder by a minute angle so that a noise light is held within said area. The ampul is always irradiates from below with a projector 8 with the liquid in the ampul rotating continuously. If mixed, foreign matters converge to the center and are caught with the TV camera to discriminate as a foreign matter. |
