Gloss sensor for a paper machine

Details Gloss sensor for a paper machine Gloss sensor for a paper machine

2007-07-27

2008-09-09

Punnoose, Roy M (Department: 2886)

Optics: measuring and testing

Of light reflection

C356S448000

Reexamination Certificate

active

07423758

ABSTRACT:
A gloss sensor for optically measuring the gloss of a moving surface includes a housing having an exterior surface which is generally parallel with the moving surface. A light source is carried by the housing and configured for emitting a source beam of light. At least one light detector is carried by the housing. An optical prism is mounted to the housing at the exterior surface. The prism is configured to split the source beam into a reference beam which is reflected by the prism internally within the housing to the one or more light detectors, and a measurement beam which passes through the prism and is reflected by the moving surface to the one or more light detectors.

REFERENCES:
patent: 4945253 (1990-07-01), Frohardt
patent: 5392125 (1995-02-01), Reisser
patent: 6404502 (2002-06-01), Preston et al.
patent: 6507403 (2003-01-01), Belotserkovsky
patent: 2006/0192957 (2006-08-01), Frick et al.
patent: 0940501 (1999-08-01), None
patent: WO9849541 (1998-05-01), None

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