Method and system for measuring a coating thickness

Details Method and system for measuring a coating thickness Method and system for measuring a coating thickness

2008-06-02

2009-08-11

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

Dimension

Thickness

C356S603000, C356S390000, C356S398000

Reexamination Certificate

active

07573586

ABSTRACT:
A method of measuring a coating thickness involves projecting a pattern of light on a surface. A first reflection of the pattern of light is received by a first image capturing device. A second reflection of the pattern of light is received by an image capturing device which may be the same or a different image capturing device. The first reflection is compared with the second reflection. A first dated map of the surface is created by comparing the first reflection and the second reflection. A coating is deposited on the surface. A second data map of the surface with the coating is created by comparing reflections. The first data map and the second data map are then compared to determine a thickness of the coating.

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