Reflection characteristic measuring apparatus for sheet...

Details Reflection characteristic measuring apparatus for sheet... Reflection characteristic measuring apparatus for sheet...

2011-07-05

2011-07-05

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Of light reflection

With modulation

C356S429000, C356S238100

Reexamination Certificate

active

07973935

ABSTRACT:
A reflection characteristic measuring apparatus capable of scanning a specimen surface of a sheet specimen at a high speed is provided. The reflection characteristic measuring apparatus includes a group of illuminating and light-receiving systems for directing illuminating light onto the specimen surface of the sheet specimen held by a specimen holding roller pair and for receiving reflected light from the specimen surface. The illuminating and light-receiving systems measure a spectral characteristic of the received reflected light. The illuminating and light-receiving systems are disposed over one-dimensional arrays of color samples which extend in the longitudinal direction of the sheet specimen, and scan the one-dimensional arrays in a direction opposite to a direction in which the sheet specimen is transported.

REFERENCES:
patent: 3756725 (1973-09-01), Manring
patent: 3847260 (1974-11-01), Fowler
patent: 4003660 (1977-01-01), Christie et al.
patent: 4284356 (1981-08-01), Heilman
patent: 4752892 (1988-06-01), Julian Lecha
patent: 4920385 (1990-04-01), Clarke et al.
patent: 5087822 (1992-02-01), Fairlie et al.
patent: 2001-264173 (2001-09-01), None
patent: 2003-521700 (2003-07-01), None

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