公开(公告)号：US06239869B1

公开(公告)日：2001-05-29

申请号：US09402685

申请日：1999-10-07

Applicant: Bernhard Heuft ,  Christoph Roesel ,  Bernd Schoening

Inventor： Bernhard Heuft ,  Christoph Roesel ,  Bernd Schoening

IPC: G01N2100

CPC classification number: G01N21/9018

Abstract: The device for the detection of diffusely scattering impurities (18) in containers (10) that have a transparent wall (16) has a light source (12), which produces one or more light beams (14) for illuminating the wall (16), and an optical detecting device (22) for production of an image of the illuminated wall (16), with the light source (12) and the optical detecting device (22) arranged according to dark-field detection. The light source (12) is designed so that the light beam or beams (14) that it emits have an intensity distribution over their cross-section with an intensity contrast at one point at least within their cross-section.

Abstract translation: 用于检测在具有透明壁（16）的容器（10）中的漫散射杂质（18）的装置具有光源（12），其产生用于照亮壁（16）的一个或多个光束（14） 以及光源（12）和光检测装置（22）根据暗场检测而配置的用于产生照明壁（16）的图像的光学检测装置（22）。 光源（12）被设计成使得其发射的光束（14）至少在其横截面内在一个点处具有在其横截面上具有强度对比度的强度分布。