Optics: measuring and testing – Of light reflection
Reexamination Certificate
2005-01-11
2005-01-11
Epps, Georgia (Department: 2873)
Optics: measuring and testing
Of light reflection
C416S073000
Reexamination Certificate
active
06842250
ABSTRACT:
The present invention relates to a device and a method for determining the quality of surface. An illuminating light source radiates light at a predetermined angle onto the measurement surface. An optical detecting device receives the light reflected from said measurement surface and converts same into an electrical measurement signal. A processor controls the measurement sequence and evaluates the measurement results, which are emitted via an output device. The illuminating light source comprises at least one light-emitting diode. The light emitted comprises at least blue, green and red spectral components in the visible range of the spectrum. A filter is provided in the path of radiation between the light source and the photosensor.
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BYK-Gardner GmbH
Epps Georgia
Harrington Alicia M.
Sun Raymond
LandOfFree
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