Patent ID: 9329135
Filing Date: 2016-05-03
CPC Classification: B07C,G01N

Claim Text:
1. An apparatus for detecting a check in a glass container, the glass container including a sealing surface and a glass container axis, the apparatus comprising: a container rotation device configured to rotate the glass container more than 360 degrees about the glass container axis; a light source configured to project light toward the glass container non-parallel with the glass container axis to illuminate a selected portion of the glass container, with at least a portion of the light source aligned in a horizontal plane with the selected portion of the glass container, the horizontal plane being orthogonal with the glass container axis; and a camera aligned for imaging the selected portion of there glass container, wherein the check is detected by the camera from a combination of a plurality of consecutive images of the selected portion of the glass container image reflections of the check on the glass container that are illuminated by the light source; a computer configured to trigger the camera to acquire a plurality of acquisitions, to cause the light source to illuminate at least a portion of the glass container for a period of time during each acquisition, and to create a critical addition from the plurality of acquisitions; wherein the camera and the light source are configured relative to one another such that when the selected portion does not include a check, the camera views a dark field and when the selected portion includes a check, the camera views light reflected from the check.