Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate
2005-09-06
2005-09-06
Rosenberger, Richard A. (Department: 2877)
Optics: measuring and testing
For light transmission or absorption
Of fluent material
C356S440000
Reexamination Certificate
active
06940600
ABSTRACT:
An apparatus for measuring decay in intensity of electromagnetic radiation passing through a radiation-absorbent sample due to absorption of radiation by the sample is disclosed which includes a source of electromagnetic radiation having a wavelength within an absorption band of the sample and a plurality of partially-reflective specular surfaces which are spaced apart from each other along a predetermined path through the sample, each specular surface separating the incident radiation into a reflected part which follows the predetermined path and an unreflected path, the value of the decay being derived from intensity measurements of the unreflected parts made at different positions along the predetermined path.
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Leydig , Voit & Mayer, Ltd.
Rosenberger Richard A.
Shimadzu Research Laboratory (Europe) Ltd.
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