Apparatus and method and techniques for measuring and...

Details Apparatus and method and techniques for measuring and... Apparatus and method and techniques for measuring and...

2005-01-25

2005-01-25

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C356S402000, C250S910000, C209S588000

Reexamination Certificate

active

06847447

ABSTRACT:
This disclosure is of 1) the utilization of the spectrum from 250 nm to 1150 nm for measurement of prediction of one or more parameters, e.g., brix, firmness, acidity, density, pH, color and external and internal defects and disorders including, for example, surface and subsurface braises, scarring, sun scald, punctures, in N—H, C—H and O—H samples including fruit; 2) an apparatus and method of detecting emitted light from samples exposed to the above spectrum in at least one spectrum range and, in the preferred embodiment, in at least two spectrum ranges of 250 to 499 nm and 500 nm; 3) the use of the chlorophyl band, peaking at 690 nm, in combination with the spectrum from 700 nm and above to predict one or more of the above parameters; 4) the use of the visible pigment region, including xanthophyll, from approximately 250 nm to 499 nm and anthocyanin from approximately 500 to 550 nm, in combination with the chlorophyl band and the spectrum from 700 nm and above to predict the all of the above parameters.

REFERENCES:
patent: 3152587 (1964-10-01), Georg et al.
patent: 5303026 (1994-04-01), Strobl et al.
patent: 5926262 (1999-07-01), Jung et al.
patent: 6512577 (2003-01-01), Ozanich

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