The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 07, 2018

Filed:

Aug. 06, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tomoaki Nakai, Numazu, JP;

Hitoshi Furukawa, Suntou-gun, JP;

Akihiko Uchiyama, Mishima, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/40 (2006.01); G01J 3/46 (2006.01); G01J 3/28 (2006.01); G01J 3/02 (2006.01); G01J 3/50 (2006.01); H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
G01J 3/40 (2013.01); G01J 3/0205 (2013.01); G01J 3/0216 (2013.01); G01J 3/0256 (2013.01); G01J 3/2823 (2013.01); G01J 3/46 (2013.01); G01J 3/501 (2013.01); G01J 3/502 (2013.01); H04N 1/6044 (2013.01);
Abstract

A color measurement device includes a light source for illuminating an object with light; a dispersing portion for spectrally dispersing light emitted and reflected by the object; a light receptor for receiving the light dispersed by the dispersing portion; and a controller for effecting color measurement based on a result of light reception of the light receptor from the object which is an image formed on a recording material; wherein the emitted light has a first intensity of light in a first wavelength range and a second intensity lower than the first intensity in a second wavelength range, and wherein the controller deduces a value relating to color measurement for the second wavelength range on the basis of a result of light reception of the light receptor for the first wavelength range.


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