Optics: measuring and testing – Inspection of flaws or impurities – Transparent or translucent material
Reexamination Certificate
2006-08-09
2009-12-29
Lauchman, L. G (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
Transparent or translucent material
C356S239100, C356S237100, C250S559400, C250S559490
Reexamination Certificate
active
07639353
ABSTRACT:
The invention relates to a system, method and device for evaluating imperfections in a lens for a display for an electronic device. For the device, it comprises: a substrate; and a pattern imposed on the substrate. For the pattern, when the pattern is viewed through the lens, the pattern is noticeably distorted around an area where a defect is present in the lens. For the system, it comprises: an evaluation table for the lens, the table having a mounting area; and a substrate for mounting on the mounting area, the substrate having a pattern imposed thereon wherein when the pattern is viewed through the lens, the pattern is noticeably distorted around an area where a defect is present in the lens.
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Alli Iyabo S
Lauchman L. G
McCarthy Tétrault LLP
Research in Motion Limited
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