VISUAL INSPECTING DEVICE

摘要

PURPOSE:To enable one image pickup device to provide an inspecting device which provides an effect the same as would be obtained equivalently by a plurality of image pickup devices, by arranging a reflector each on the right and on the left of a conveyor to project right and left sides of an object to be inspected. CONSTITUTION:An object 1 to be inspected is placed on a conveying device such as belt conveyor 2 to convey. Boxes 12 and 13 are placed on the right and on the left of the object 1 being inspected and light sources 8 and 9 and mirrors 6 and 7 are placed therein respectively so as to light the object 1 being inspected by diffusion light passing through diffusion plates 10 and 11 as frosted glass. A luminous flux from the object 1 being inspected is reflected on mirrors 6 and 7 passing through slits 16 of the diffusion plates 10 and 11 and further made incident on an image pickup device 3 passing through a slit 15 of an upper plate 14. This enables one image pickup device to provide an image pickup range and a shading effect the same as would be obtained by a plurality of image pickup devices, thereby simplifying the apparatus and lowering investment in equipment.