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AssigneeElpatronic AG
InventorsCarsten Agerskov, Henrik Sloth, Ulrik Jacobi, Robert Apter, Louis-Francois Pau
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The apparatus is used for testing the surface structure of hollow, cylindrical regions of transparent, hollow bodies (e.g. bottles) moved along a track. It comprises an illuminating device (10), a conveyor (14) by means of which the hollow bodies (34) are moved through an inspection region, and an imaging device (12). The illuminating device (10) has several light sources (26) which are arranged so that, in every position within the inspection region (9), the hollow bodies (34) receive light at an angle of incidence such that the hollow bodies (34) act as wave guides and appear as secondary light sources with respect to the imaging device (12), so that the imaging device (12) yields a high-contrast image of the surface structures of the hollow bodies. The device is principally used for the testing of recycled bottles.
Apparatus for inspecting a substantially hollow, cylindrical region of transparent hollow bodies moved along a track, wherein the hollow bodies pass through an insepection region on a track section where an imaging device covering the insepection region is located on one side of the track section and the axes of the hollow bodies, and an illuminating device containing light sources which irradiate the inspection region is arranged on the opposite side of the track section, characterized in that the light sources are distributed around the insepection region so that the hollow bodies receive light at each position in the inspection region at an angle of incidence greater than the critical angle for total reflection such that the hollow bodies act as waveguides and appear as secondary light sources with respect to the imaging device.
Dependencies are inferred from the claim text.