发明名称 |
DEVICE FOR DETECTING DIFFUSELY SCATTERED IMPURITIES IN TRANSPARENT RECEPTACLES |
摘要 |
The invention relates to a device for detecting diffusely scattered impurities (18) in receptacles (10) with a transparent wall (16). The inventive device has a light source (12) producing one or several beams of light (14) to illuminate said wall (16) and also comprises an optical detector (22) producing an image of the illuminated wall (16), wherein the light source (12) and the optical detector (22) are arranged according to dark-field detection. The light source (12) is configured in such a way that the intensity of the light beam(s) (14) emitted therefrom is distributed along its/their crosssection with a contrast in intensity at at least one point inside said crosssection.
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申请公布号 |
CA2283519(A1) |
申请公布日期 |
1998.10.15 |
申请号 |
CA19982283519 |
申请日期 |
1998.04.09 |
申请人 |
HEUFT SYSTEMTECHNIK GMBH |
发明人 |
HEUFT, BERNHARD;SCHOENING, BERND;ROESEL, CHRISTOPH |
分类号 |
G01N21/90;(IPC1-7):G01N21/90;G01N21/51 |
主分类号 |
G01N21/90 |
代理机构 |
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主权项 |
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