Patent ID: 6937339
Filing Date: 2005-08-30
Classification: G01N

Abstract:
1. A foreign matter inspection device for inspecting foreign matters in a liquid filled transparent container comprising: a first irradiation light source which is disposed behind the transparent container and irradiates a first irradiation light to the transparent container; a second irradiation light source which is disposed adjacent to the first irradiation light source and irradiates a second irradiation light of a different color from that of the first irradiation light from a different direction from that of the first irradiation light to the transparent container; a color separation mirror which is disposed on a transmission light optical path of the first irradiation light from the transparent container as well as on a reflection light optical path of the second irradiation light from the transparent container, and which causes to advance in straight optical path the transmission light of the first irradiation light and performs color separation of the reflection light of the second irradiation light and guides the same in another optical path than that of the transmission light; a first imaging means which is disposed on the straight advancing optical path and images the transmission light of the first irradiation light; a second imaging means which is disposed on the another optical path and images the reflection light of the second irradiation light; and an image processing means which image processes picture images taken by the first and second imaging means and detects foreign matters in the liquid filled container.