Optics: measuring and testing – By shade or color – With color transmitting filter
Reexamination Certificate
2006-08-29
2006-08-29
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By shade or color
With color transmitting filter
C356S416000, C356S441000, C250S458100
Reexamination Certificate
active
07099012
ABSTRACT:
Some embodiments of the invention provide an improved spectrometer that measures light emissions and/or reflection from a non-solid material that flows through a system of pipes. This spectrometer is designed to fit into a standard pipe system. The material flows past a distal end of the spectrometer that is inserted in the pipe system. The spectrometer has the ability to project light onto the material and collect a resulting light from the material through the distal end as the material flows past this end.
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Skoog, D.A.—Principles of Instrumental Analysis, 3rd Ed.—Saunders College Publishing, 1985, p. 19.
Crawford James
Doting David
Ellison Robert
Hoang Sang
Monsef Steven
Evans F. L.
Stattler Johansen & Adeli LLP
Turner Designs, Inc.
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