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:
Nov. 22, 2016

Filed:

Apr. 09, 2012
Applicants:

Yoshitaka Teraoka, Osaka, JP;

Katsutoshi Tsurutani, Osaka, JP;

Yuta Yamanoi, Toyonaka, JP;

Inventors:

Yoshitaka Teraoka, Osaka, JP;

Katsutoshi Tsurutani, Osaka, JP;

Yuta Yamanoi, Toyonaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/50 (2006.01); G01N 21/25 (2006.01); G01N 21/57 (2006.01); G01N 21/47 (2006.01);
U.S. Cl.
CPC ...
G01J 3/50 (2013.01); G01J 3/502 (2013.01); G01J 3/504 (2013.01); G01N 21/251 (2013.01); G01N 21/255 (2013.01); G01N 2021/4711 (2013.01); G01N 2021/4735 (2013.01); G01N 2021/575 (2013.01); G01N 2201/0221 (2013.01);
Abstract

In a multi-angle colorimeter, a light detecting portionincludes a main light receiving window disposed in a predetermined position on a main geometry plane, and first and second auxiliary light receiving windows disposed on a secondary geometry plane, and a main photoelectric conversion element for converting a main component light received by the main light receiving window in a light reflected from a measurement point into an electrical main signal and first and second auxiliary photoelectric conversion elements for converting first and second auxiliary component lights received by the first and second auxiliary light receiving windows in the reflected light respectively into first and second electrical auxiliary signals. A calculating portion corrects the electrical main signal based on the first and second electrical auxiliary signals to obtain color information about the measurement point.


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