Color density measuring device

Details Color density measuring device Color density measuring device

2006-09-22

2010-02-02

Toatley, Jr., Gregory J (Department: 2877)

Optics: measuring and testing

By shade or color

With sample responsive to plural colors applied simultaneously

C356S420000

Reexamination Certificate

active

07656530

ABSTRACT:
A color density measuring device (10) for determining the color density of an ink layer applied to a printing material (22), having a light source (24) for illuminating the printing material (22) and a sensor for receiving the light remitted from the printing material (22), is characterized according to the invention in that the sensor is fashioned as a multicolor image sensor (12), and a device (14, 24, 26; 30) is provided with the aid of which the light incident at the multicolor image sensor (12) is restricted to at least one predetermined wavelength band.

REFERENCES:
patent: 5751429 (1998-05-01), Wada et al.
patent: 5856876 (1999-01-01), Sasanuma et al.
patent: 6722281 (2004-04-01), Yamamoto
patent: 6842250 (2005-01-01), Schwarz
patent: 2003/0142314 (2003-07-01), Hubble et al.
patent: 2005/0133693 (2005-06-01), Fouquet et al.
patent: 1 260 877 (2002-11-01), None

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