G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/90 (2006.01)
Patent
CA 2256192
Infrared and visible light energies are directed through a container onto a CCD camera that is responsive to both the visible and infrared light energy. Crossed polarizers are positioned on opposed sides of the container, and operate on the visible light energy in such a way as to block transmission of visible light to the camera in the absence of stress variations in the container, which alter polarization of the visible light energy traveling through the container. On the other hand, the polarizers have little or no effect on the infrared light energy, which creates a normally gray intensity of background light at the camera. In this way, incidence of visible light on the camera due to stress variations in the container appears as a bright signal against a normally gray background, while blockage of infrared light due to opaque variations in the container appears as a dark signal against the normally gray background.
Gowling Lafleur Henderson Llp
Owens-Brockway Glass Container Inc.
LandOfFree
Optical inspection of transparent containers using infrared... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical inspection of transparent containers using infrared..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical inspection of transparent containers using infrared... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1691672