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:
Jun. 30, 2009
Filed:
Oct. 28, 2005
Applicants:
Ming Ronnier Luo, Harrogate, GB;
Kaida Xiao, Beijing, CN;
Changjun LI, Derby, GB;
Inventors:
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method, combination or apparatus for compensating for or predicting the shift in the human perception of color which occurs when the color is seen on a small surface area as compared with when it is seen extending over of large surface area. The compensation or prediction is performed by increasing (compensation) or decreasing (prediction) the lightness and chroma of the color in a specified way. The invention allows choosers of color to take account of the shifts when making their choice of colors and is useful in choosing colors for paints, plastics, textiles or illuminated surfaces.