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| Number | Title | Issue Date |
| 7940393 | Method and system for approximating the spectrum of a plurality of color samples Method for approximating the spectrum of a plurality of color samples, the method including the procedures of measuring the color of a reference color sample in a color space, determining a reference sample estimated spectrum from the measured color, measuring the a... | 05/10/2011 |
| 7623241 | Method for automatic color matching of transparent wood stains A method of producing a finish for a paper substrate, wherein the finish provides the paper substrate with a color that matches the color of a target object. In accordance with the method, calculations are performed to determine the quantities of at least one group ... | 11/24/2009 |
| 7417735 | Systems and methods for measuring color and contrast in specular reflective devices Disclosed herein are systems and methods for measuring color and contrast in specular reflective devices such as interferometric modulators. To make color and contrast determinations, light reflected from a specular reflective device may be measured in-line with ill... | 08/26/2008 |
| 7393209 | Tooth shade analyzer system and methods The invention relates to a computer readable medium comprising one or more programs for carrying out a method for determining a patient's tooth shade. The method generally includes the steps of generating an image of a patient's tooth wherein the image includes colo... | 07/01/2008 |
| 7345764 | Apparatus and method for a slim format spectrometer Disclosed is an apparatus and method for a compact, rugged, and inexpensive spectrometer that will make possible a range of new applications for optical spectroscopy including point-of-care medical devices, personal monitors, and ubiquitous environmental sensing. Em... | 03/18/2008 |
| 7321423 | Real-time goniospectrophotometer In accordance with embodiments of the present invention, a goniospectrophotometer is provided for quickly obtaining a goniospectrum using a goniospectrophotometer. In some embodiments, a parabolic reflector is used to optically transform the angular space of a sourc... | 01/22/2008 |
| 7304741 | Pesticide detector and method Highly portable, handheld instrument which can be pointed at the produce to be checked. Light from a source within the instrument is directed onto the produce to induce fluorescent emission from the produce, and fluorescent emissions from the produce are monitored w... | 12/04/2007 |
| 7283244 | Reflectance estimating method At first, a sample for obtaining light measurement data is set to obtain reflectances. After setting an arbitrary wavelength λi, a principal component analysis is executed to obtain an eigenvalue 1 and an eigenvector b. Then a basic equation for reflecta... | 10/16/2007 |
| 7271910 | Systems and methods for compensating for temperature induced spectral emission variations in LED based color parameter measuring devices Systems and method provide compensation for temperature induced peak wavelength shift of LEDs is color parameter measuring systems that use a model to reconstruct target color parameter values from the reflectance values measured when the target is illuminated by LE... | 09/18/2007 |
| 7233398 | Colorimeter measured value control system and colorimeter measured value control method thereof, and a color control information providing system and a color control information providing method thereof A colorimeter measured value control system for controlling the measured values of plural colorimeters, including: a plurality of terminal apparatuses, each arranged for each base, having transmission section for transmitting the measured values of a color sample me... | 06/19/2007 |
| 7193717 | System and method for analyzing microbial growth A liquid testing system includes a first well for receiving a sample to be tested, a first light, having a first wavelength, for illuminating the first well, and a second light, having a second wavelength, for illuminating the first well. The liquid testing system f... | 03/20/2007 |
| 7173246 | Portable apparatus for the non-destructive measurement of the internal quality of vegetable products An apparatus for non-destructive measurement of internal properties of individual vegetable or fruit pieces comprises: LEDs constructed and arranged to emit radiation into a vegetable or fruit product; pick-up structure constructed and arranged to pick up radiation,... | 02/06/2007 |
| 7167246 | Method of color matching metallic paints A process for color matching a metallic paint by taking a color measurement reading at a single angle using a regular spectrophotometer or colorimeter is provided. The preferred type of metallic pigment to be utilized in preparing the matching color can be selected ... | 01/23/2007 |
| 7161676 | Method for designing a plastic article having a desired appearance The present invention provides a method for designing a plastic article having a desired appearance. The process includes having a desired appearance and then obtaining fabrication parameters from the set of virtual article parameters. The present invention can incl... | 01/09/2007 |
| 7152941 | Printing system calibration In an implementation of printing system calibration, a calibration system measures colorant levels of a colorant applied to a test element, measures color values of the colorant applied to a print media after the colorant is in the finished state, and establishes a ... | 12/26/2006 |
| 7151606 | Method for evaluation of vegetables and fruits and evaluation apparatus therefor One form of evaluation apparatus comprising a plurality of light sources vertically arranged by one side of a carrier line in width direction Y perpendicular to carrying direction X of the carrier line; and a light-receiving section arranged by an opposite side of t... | 12/19/2006 |
| 7116420 | Method of color matching wood stains A method of producing a finish for a selected wood substrate, wherein the finish provides the selected wood substrate with a color that matches the color of a target object. In accordance with the method, calculations are performed to determine the quantities of at ... | 10/03/2006 |
| 7050168 | Optical measurement device and related process An instrument and related process for measuring color, shade, gloss, shape and/or translucence of a tooth. First, the instrument uses searchlight illumination to illuminate a tooth with constant irradiance. Second, the instrument uses calorimetric imaging to collect... | 05/23/2006 |
| 7042566 | Method of verifying color and strength properties of batches of wood stains A method of verifying the color and tinting strength of a manufactured batch of a semi-transparent wood stain. In accordance with the method, a standard batch of the wood stain is formed and then mixed with a specified amount of a white colorant to form a standard m... | 05/09/2006 |
| 6934026 | Making dye mixtures to produce a certain target color A method for making a dye mixture to produce a target colour on a given substrate, comprising the steps of: −a) measuring reflectance values RT(λi) of the target colour at a plurality of wavelengths λi=1, 2 . . . n; b) measuring ... | 08/23/2005 |
| 6832913 | Tooth shade analyzer system and methods The invention relates to a computer readable medium comprising one or more programs for carrying out a method for determining a patient's tooth shade. The method generally includes the steps of generating an image of a patient's tooth wherein the image includes colo... | 12/21/2004 |
| 6795188 | High-accuracy wavemeter A wavemeter for determining a wavelength of an incoming optical beam. The wavemeter comprises a coarse-measuring unit determining in a first wavelength range a first wavelength value as representing the wavelength of the incoming optical beam, and a fine-measuring u... | 09/21/2004 |
| 6788413 | METHOD FOR CHARACTERIZING THE APPEARANCE OF A PARTICULAR OBJECT, FOR PREDICTING THE APPEARANCE OF AN OBJECT, AND FOR MANUFACTURING AN OBJECT HAVING A PREDETERMINED APPEARANCE WHICH HAS OPTIONALLY BEEN DETERMINED ON THE BASIS OF A REFERENCE OBJECT The surface contribution to appearance of an object is characterized using a plurality of viewing and illumination angles. The color determining and surface contribution are determined to aid in the predicting of the appearance of an object as well as matching an ob... | 09/07/2004 |
| 6744513 | Computer color matching method of paint and preparing method of paint using the same method A computer color matching method of paint for measuring a proper formulation of colorants for obtaining a target color or color and luster, or a proper formulation of colorants and luster color materials, directly in a liquid state of paint, without preparing painte... | 06/01/2004 |
| 6740154 | Paint colorant product and method A neutral paint colorant has a composition comprising approximately 7.0% Color Index Pigment Yellow 42, 2.4% Color Index Pigment Red 101, and 4.0% Color Index Pigment Black 7. A pre-blended mixture of the neutral colorant and a paint base can be blended with a first... | 05/25/2004 |
| 6561800 | Tooth shade analyzer system and methods A method for determining a patient's tooth shade, by generating an electronic image of a patient's tooth wherein the image includes color information representative of the patient's tooth shade; storing color information representative of a plurality of t... | 05/13/2003 |
| 6559943 | Fiber optic system including digital controller for fiber optic tunable filter and associated methods A fiber optic system includes an optical fiber carrying an optical signal having a wavelength peak, an optical detector coupled to the optical fiber for detecting a current optical level (e.g. a photon power level), and a tunable optical filter coupled to... | 05/06/2003 |
| 6539323 | Methods and apparatus for correcting spectral color measurements The invention provides methods and apparatus for correcting spectral measurements, such as are obtained by a spectrophotometer for measuring color. A single matrix is used that operates on a raw measurement vector (spectrum) to obtain a corrected spectrum... | 03/25/2003 |
| 6445451 | Colorimeter and assay device A cassette reader for detecting the status of stained samples is provided. The colorimeter includes one or more high power emitting diodes as the source of illuminating the sample. An elliptical mirror, with a central aperture to permit the light to penet... | 09/03/2002 |
| 6384282 | Transition metal-catalyzed process for addition of amines to carbon-carbon double bonds The present invention is directed to a process for addition of amines to carbon-carbon double bonds in a substrate, comprising: reacting an amine with a compound containing at least one carbon-carbon double bond in the presence a transition metal catalyst... | 05/07/2002 |
| 6362885 | METHOD OF DETERMINING THE FORMULATING RATIO OF A METALLIC OR PEARLESCENT PIGMENT TO A COLORANT OR THE FORMULATING AMOUNT OF A METALLIC OR PEARLESCENT PIGMENT IN THE COMPUTER-AIDED COLOR MATCHING OF A METALLIC OR PEARLESCENT PAINT A method of determining the formulating ratio of metallic or pearlescent pigments to colorants for matching the color of a metallic or pearlescent coating to an target color wherein, the spectral reflectances of a plurality of samples varied in the formul... | 03/26/2002 |
| 6358047 | Tooth shade analyzer system and methods The invention relates to a method for determining a patient's tooth shade, by generating an electronic image of a patient's tooth wherein the image includes color information representative of the patient's tooth shade; electronically storing color inform... | 03/19/2002 |
| 6313917 | Produce data collector and produce recognition system A produce data collector with minimal spectral distortion. The produce data collector includes a light pipe having entrance and exit ends through which a portion of light reflected from a produce item travels, and a spectrometer adjacent the exit end of t... | 11/06/2001 |
| 6272440 | Method and apparatus for measuring color and/or composition The invention relates to a method and apparatus for determining the color and/or composition of a material. A sample of the material is illuminated with at least three separate illumination bands singly or in combination, said illumination bands collectiv... | 08/07/2001 |
| 6210159 | System and methods for analyzing tooth shades A digital camera connects to a tooth shade analyzer subsystem, e.g., a digital video processor, and a color display monitor for the electronic determination of the color of patient's teeth. Preliminarily, the camera captures series of digital color images... | 04/03/2001 |
| 6206691 | System and methods for analyzing tooth shades A digital camera connects to a tooth shade analyzer subsystem, e.g., a digital video processor, and a color display monitor for the electronic determination of the color of patient's teeth. Preliminarily, the camera captures series of digital color images... | 03/27/2001 |
| 6132210 | Tooth shade analyzer system and methods A tooth shade analyzing system and method of use. The system includes a digital camera which connects to a shade analyzer subsystem, e.g., a digital video processor, and a color display monitor. The camera captures a digital color image of the patient's t... | 10/17/2000 |
| 6128090 | Visual control strip for imageable media A visual control strip for imageable media such as a printing plate, a photographic film or a printable substrate is described wherein the visual control strip is to be applied to the imageable medium. The control strip includes a plurality of first contr... | 10/03/2000 |
| 6058357 | Color measurement system including a digital color sensor and a host computer in communication with the color sensor A desktop color measurement system that includes an instrument capable of making color measurements. The system includes a host computer and a digital color sensor (DCS) in communication with the host computer. The DCS includes optical elements for making... | 05/02/2000 |
| 6052194 | Method and apparatus for controlling the spectral reflectance of a material A method and apparatus for controlling the color of an article such as a paper web includes performing a comparison between target and measured reflectance values in numerous wavelength bands spanning the visible spectrum. The comparison quantifies corres... | 04/18/2000 |
