Method and apparatus for illuminating material for automated...

Details Method and apparatus for illuminating material for automated... Method and apparatus for illuminating material for automated...

2008-01-21

2011-12-06

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

C356S239100

Reexamination Certificate

active

08072593

ABSTRACT:
A lighting configuration that is a combination of far dark field lighting and a modified dark stripe lighting is disclosed. The novel combination provides a more robust detection of flaws on, e.g. a moving web of transparent film, than either would provide alone or through a summation of their individual parts.

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