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Class Information
Number: 356/421
Name: Optics: measuring and testing > By shade or color > With reflective multicolor chart or standard
Description: Subject matter including one or a plurality of surfaces which reflect different colors or tints of a color for comparison with the color of the samples to be tested.

Sub-classes under this class:

Class Number Class Name Patents
356/424 Drum or endless tape 4
356/422 Plate 25

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8680993 System and apparatus for gloss correction in color measurements Mar. 25, 2014
8659757 Visual testing method for evaluating chromatic aberration Feb. 25, 2014
8603772 Particle sensor with wide linear range Dec. 10, 2013
8587783 Spectral estimation parameter generation device, method of generating spectral estimation parameter, and spectral estimation device Nov. 19, 2013
8564770 System for in-situ detection of plant exposure to trichloroethylene (TCE) Oct. 22, 2013
8542361 Color matching device and method Sep. 24, 2013
8542360 Method and apparatus for producing a new shade guide having new color values from known color elements Sep. 24, 2013
8525997 System and apparatus for improved low reflectance color measurement Sep. 3, 2013
8467060 Colour image reference system for monitor and projector images Jun. 18, 2013
8305665 Image processing apparatus, image forming system, image processing method and computer readable medium Nov. 6, 2012
8144326 Fabric whiteness guide Mar. 27, 2012
7999822 Color processing apparatus and method thereof Aug. 16, 2011
7990536 System and method for measuring reflectance of object Aug. 2, 2011
7894065 Ink splitting correction method Feb. 22, 2011
7830514 Color measurement systems and methods addressing effects of ultra-violet light Nov. 9, 2010
7633648 Method and apparatus for calculating distances and reflection differences between measurement points on printed matter to evaluate image quality Dec. 15, 2009
7626728 Method and apparatus for calcuating color differences on measured evaluation charts to evaluate color reproducibility considering image homogeneity Dec. 1, 2009
7426033 Methods and apparatus for colorimetrically characterizing color deviation in color imaging devices Sep. 16, 2008
7268913 Display measuring method and profile generating method Sep. 11, 2007
7259852 Modified-color generation and display method and apparatus Aug. 21, 2007
7230727 System for sensing an absolute position in two dimensions using a target pattern Jun. 12, 2007
7145656 Computer-implemented method for matching paint Dec. 5, 2006
7057728 Color card, color book comprising the same, and color card with picture sample Jun. 6, 2006
6995843 Method of simulating a clear-coat and color-matching articles Feb. 7, 2006
6985230 Comparison sample for simulating the color of keratinous elements, and related methods Jan. 10, 2006
6940597 Method for obtaining an approximate standard color definition for a sample color Sep. 6, 2005
6848904 Shade guide for evaluating the optical appearance of a dental restoration Feb. 1, 2005
6793489 Automated tooth shade analysis and matching system Sep. 21, 2004
6788412 Process and device for the optical marking of a target region of a color measuring device on a measurement surface Sep. 7, 2004
6781694 Two-dimensional scale structures and method usable in an absolute position transducer Aug. 24, 2004
6734973 Method and apparatus for determining plant nutrient status May. 11, 2004
6725772 System admixture compensation system and method Apr. 27, 2004
6724480 Comparison sample for simulating an appearance of a keratinous element, and related methods Apr. 20, 2004
6717673 Method of color-matching Apr. 6, 2004
6717674 Color chart, chart image data recording medium, profile producing apparatus, profile producing method, and profile producing program storage medium Apr. 6, 2004
6450327 Paper palette for art Sep. 17, 2002
6449045 System and method from reconstruction of spectral curves using measurements for a color sensor and statistical techniques Sep. 10, 2002
6437863 Method and apparatus for detecting and measuring conditions affecting color Aug. 20, 2002
6421125 Device and method for determining compatible colors Jul. 16, 2002
6314372 Method and apparatus for hair color characterization and treatment Nov. 6, 2001
6263291 Method and apparatus for measuring color and/or composition Jul. 17, 2001
6244863 Dental color comparator scope Jun. 12, 2001
6186946 Urinalysis stick for animals Feb. 13, 2001
6157445 Method and apparatus for detecting and measuring conditions affecting color Dec. 5, 2000
6112665 Method and computer generated swatch cards for matching colors Sep. 5, 2000
6067504 Method for correctly identifying hair color May. 23, 2000
5959736 Method and arrangement for determining the color-type of a test subject Sep. 28, 1999
5895836 Greyscale calibration method in digital printing Apr. 20, 1999
D388167 Blood loss estimator Dec. 23, 1997

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