CONTAINER OUTLINE INSPECTION APPARATUS

摘要

PROBLEM TO BE SOLVED: To perform highly accurate inspections and to maintain inspection accuracy over a long period. SOLUTION: This container outline inspection apparatus is provided with a pair of projectors 2A and 2B for irradiating luminous fluxes LAand LBeach having a prescribed cross section to a prescribed height location of the peripheral surface of a container 1; a pair of light receivers 3A and 3B each for receiving only a light component in parallel with an optical axis by cutting the luminous flux from each of the projectors 2A an 2B; and a determining device 4 for determining the quality of the outline of the container 1 by determining the degree of light shielding of the luminous flux shielded by the container 1 on the basis of the quantities of light reception of the light receivers 3A and 3B. The one projector 2A and the one light receiver 3A are positioned at opposed locations so that part of an optical path may be shielded by one side part 1A of the container 1. The other projector 2B and the other light receiver 3B are positioned at opposed locations so that part of an optical path may be shielded by the other side part 1B of the container 1. COPYRIGHT: (C)2005,JPO&NCIPI