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.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Mar. 28, 2018
Applicant:
Datacolor Inc., Lawrenceville, NJ (US);
Inventors:
Zhiling Xu, West Windsor, NJ (US);
Hong Wei, Princeton, NJ (US);
Taeyoung Park, Princeton Junction, NJ (US);
Assignee:
DATACOLOR INC., Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/46 (2006.01); G01N 21/25 (2006.01); G06F 17/16 (2006.01);
U.S. Cl.
CPC ...
G01J 3/462 (2013.01); G01N 21/255 (2013.01); G06F 17/16 (2013.01); G01J 2003/467 (2013.01);
Abstract
A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.