Optics: measuring and testing – Inspection of flaws or impurities – Transparent or translucent material
Reexamination Certificate
2011-08-02
2011-08-02
Toatley, Gregory J (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
Transparent or translucent material
C356S390000, C356S124000, C382S141000
Reexamination Certificate
active
07990531
ABSTRACT:
A method for inspecting lenses, especially wet contact lenses provided in a volume of liquid inside a container is described. A first image of the lens at a first position in the container is obtained, the lens then being moved to a second position within the container where a second image is obtained. A computer algorithm processes the first and second images to compare features that have moved with the lens to those features that have not moved with the lens whereby lenses are rejected if a feature has moved with the lens but is not a normal feature of the lens.
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Clements Julie Ann
Collier Steven John
Marsh Jennifer Susan
CooperVision International Holding Company, LP
Klein O'Neill & Singh, LLP
Slomski Rebecca C
Toatley Gregory J
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