Single-camera angled conveyance imaging method and apparatus for whole-surface inspection of rotating objects

摘要

The single-camera angled conveyance inspection method and apparatus includes upwardly and downwardly angled conveyance mechanisms positioned within an instantaneous field of view of a digital line scan camera. As a rotating object is moved over the conveyances by a helical guide, the camera obtains images of the object and communicates the images to a processor. The processor assembles a reflectance and fluorescence image of the object including detected defects and/or contamination on the outer surface of the object.

主权项

1. An inspection system comprising:
a rotating object; a downwardly-angled conveyance comprising:
(a) a plurality of downwardly angled rotating members rotating the object in a first direction;(b) a helical guide encircling each one of the downwardly angled rotating members and guiding the object in a downward direction along the downwardly angled conveyance; an upwardly-angled conveyance comprising:
(c) a plurality of upwardly angled rotating members rotating the object in the first direction;(d) a helical guide encircling each one of the upwardly angled rotating members and guiding the object in an upward direction along the upwardly angled conveyance; a camera obtaining images of the object, the upwardly angled and downwardly angled conveyances falling within an instantaneous field of view (IFOV) of the camera; a processor receiving the images of the object from the camera and producing object image data; wherein the inspection system is structured so that the object is retained or rejected based on the image data.