Patent ID: 6825925
Filing Date: 2004-11-30
Classification: G01N

Abstract:
An inspecting apparatus of a foreign matter for detecting the foreign matter contained in a sealed bottle, containing a liquid product, characterized by:a light source radiating light from over the top portion of said sealed bottle into said liquid in order to intensify the contrast of light and darkness of the liquid and the foreign matter; a conical prism disposed closely to the bottom face of said sealed bottle in order to enlarge said foreign matter; an imaging means disposed under said conical prism, intensifying the contrast of light and darkness of said liquid and the foreign matter and also obtaining an enlarged image of the foreign matter in said liquid by receiving the light through said conical prism from said light source and passing through said liquid; and a detecting means detecting the foreign matter contained in said sealed bottle containing the foreign matter in the liquid deposited in the concavity of the inside bottom portion of said sealed battle by processing signals of said images including all area of the bottom face of said sealed bottle obtained by said imaging means.