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| Number | Title | Issue Date |
| 7667845 | Color evaluation apparatus and method A spectral distribution error evaluation apparatus is used to evaluate precision of color matching between evaluation and target colors. A first weighting function generator generates a first weighting function on the basis of color matching functions, wavelength ch... | 02/23/2010 |
| 7616314 | Methods and apparatuses for determining a color calibration for different spectral light inputs in an imaging apparatus measurement Methods and apparatuses for determining a color calibration for different spectral light inputs in an imaging apparatus measurement are disclosed herein. In one embodiment, for example, a method for determining a color calibration for different spectral light inputs... | 11/10/2009 |
| 7474402 | Reflectance sensor for integral illuminant-weighted CIE color matching filters A tristimulus colorimeter for measuring reflective or transmissive materials is provided. The colorimeter measures a sample under a calibrated light source, receives inputs to detectors, and determines CIE tristimulus values of the same sample as they would occur un... | 01/06/2009 |
| 7420680 | Method for designing a colorimeter having integral CIE color-matching filters A method for determining the optimal colorant thicknesses for integral CIE color-matching filters is provided. According to a computational study, a four band filter of the present invention provides a best approximation to the CIE XYZ color-matching functions with ... | 09/02/2008 |
| 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 |
| 7394540 | Methods and apparatuses for applying different color calibrations at different locations in an imaging photometer measurement Systems and methods for applying different color calibrations at different locations in an imaging photometer measurement are disclosed herein. In one embodiment, a method for measuring a light source having a first area with a first spectral distribution and a seco... | 07/01/2008 |
| 7391514 | Colorimeter A calorimeter for measuring a color of light includes a color sensing device, a suspension means and a counterweight. The suspension means suspends the color sensing device in an operative relationship relative to a color producing device, while the counterweight is... | 06/24/2008 |
| 7369239 | Light measuring apparatus and method for measuring monochromatic light A color luminance meter 1 is provided with a polychrometer 4 as a spectral optical system including a light receiving sensor array 43, a signal processing circuit 5 and an operation control unit 6. The operation control unit 6 | 05/06/2008 |
| 7352460 | Directed color standard and method for using same The present invention discloses a method for establishing a directed color standard. Color reflectance data is measured from a fabric to construct an initial color standard. Because all fabrics have inherent quality fluctuations, a second series of color reflectance... | 04/01/2008 |
| 7351245 | Apparatus and method for dislodging object from throat An apparatus for sucking out an object stuck in a person's throat, comprising hollow first and second bellows elements each having an orifice with a one-way valve and an exit valve, a tube structure comprising first and second legs having free distal ends outside th... | 04/01/2008 |
| 7341450 | Tooth shade scan system and method A tooth shade scan system is provided that identifies tooth shades for a patient's tooth. An electronic database of tooth shade information for a shade guide may be stored. The database may include shade information based on tooth regions (e.g., the incisal, central... | 03/11/2008 |
| 7339156 | Method of creating a color profile for color measurement system A method of creating a color profile. The method includes measuring the color of a first object to create a first measurement; measuring the color of a second object to create a second measurement; and generating a color profile from the first measurement and the se... | 03/04/2008 |
| 7327458 | Spectral sensitivity composing system An output current from each pixel sensor can be extracted at an arbitrary ratio by a current divider. An arithmetic control unit sets the dividing ratio in correspondence to a color matching function. The current components are added together by a summing amplifier ... | 02/05/2008 |
| 7315385 | Image processing apparatus and method thereof Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output... | 01/01/2008 |
| 7312874 | Apparatus and a method for determining the color stimulus specification of translucent objects The Apparatus for determining the color stimulus specification of a translucent object, for example of a tooth, comprises an illumination device as well as an image capture device. For illuminating the object under test with light in different wave length portions, ... | 12/25/2007 |
| 7312891 | Image processing method and apparatus When a color reproduction model of a device is generated, colorimetry of a 9×9×9 grid, for example, is performed utilizing equidistant signal values in the color space of the device. Generally, if the number of grid points is increased, the precision with which th... | 12/25/2007 |
| 7304740 | Methods for detecting compression wood in lumber Methods are provided for detecting compression wood, blue stain, or pitch in lumber. A light beam is projected towards the wood sample. Line or area cameras acquire images of light that is reflected from the wood sample. Based on the intensity of the reflected light... | 12/04/2007 |
| 7301636 | Miniaturized system and method for measuring optical characteristics A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light rece... | 11/27/2007 |
| 7298483 | Miniaturized system and method for measuring optical characteristics A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light rece... | 11/20/2007 |
| 7292949 | Method and apparatus for estimating surface moisture content of wood chips Method and apparatus for estimating surface moisture content of wood chips employing a surface moisture measurement obtained from a non-contact surface moisture sensor, which measurement is calibrated with values of a set of optical parameters, such as HSL color cam... | 11/06/2007 |
| 7285768 | Color photodetector array A color sensor for measuring light from a light source and the method for fabricating the color sensor. The color sensor includes a plurality of photodetectors, a plurality of primary color filters and a trim filter. Each primary color filter includes a layer of mat... | 10/23/2007 |
| 7283238 | Method and apparatus for matching colours A portable color sampling device (10) facilitates comparison of a color sampled from an object using an optical sensor (11) with a database (30,42,43,44) of stored colors. The database (30,42,43,44) of stored colors includes a merchandise... | 10/16/2007 |
| 7283239 | Method for generating a formula for calculating mottling of a paint film, and a quantification method of the mottling A method for generating a calculation formula to obtain an accurate mottling value is disclosed. Two-dimensional data and color values of a target paint film are considered. The calculation formula provides a method for numerically expressing the mottling of the tar... | 10/16/2007 |
| 7280259 | Method for printing a color proof using a spatial filter The invention is a method for printing a color proof from an initial halftone bitmap file (10) having individual dots (10a, 10b, 10c, 10d) using a spatial filter (20) which is created from a calib... | 10/09/2007 |
| 7265778 | Visual display characterization A method of characterizing a display having a plurality of color channels includes the steps of visually characterizing the nonlinearities of the display; determining luminance ratios of the color channels using heterochromatic photometry; determining the chromatici... | 09/04/2007 |
| 7262855 | Color measurement engine with UV filtered illumination A color measurement instrument includes a housing and illuminators, a two-dimensional photodetector array, and an optics system within the housing. A UV filter wheel closes the housing to prevent contaminants from entering the housing. The filter wheel supports UV f... | 08/28/2007 |
| 7262560 | Regulating a light source using a light-to-frequency converter An apparatus and method thereof for regulating a light source are described. The apparatus includes a light-to-frequency converter that converts light received from the light source into a signal having a corresponding frequency. A circuit coupled to the light-to-fr... | 08/28/2007 |
| 7262854 | Multi-angle colorimeter In a multi-angle colorimeter having an illumination system that illuminates a sample surface and a plurality of light receiving systems that receive reflected light therefrom, an illumination system for orientation error detection is provided that illuminates the sa... | 08/28/2007 |
| 7259858 | Imaging apparatus having media sensing system A system for sensing imaging media along a transport path. System includes a light source positioned proximate to a selected location along transport path. A transducer in optical alignment with light source so as to receive light from light source after light cross... | 08/21/2007 |
| 7244122 | Methods for determining optical characteristics of dental objects Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth... | 07/17/2007 |
| 7245377 | Colorimetry device A colorimetry device having a light source for irradiating light to a measured object, a cover part provided with a take-out port for taking out light diffused from the measured object, and a placing part on which the measured object is placed, the measured object b... | 07/17/2007 |
| 7240839 | Color measurement apparatus operable as a pointing device, a computer display measurement device and a printer output measurement device A color measurement apparatus is adapted as an attachment for a personal computing system. An interface integral to the color measurement apparatus couples the color measurement apparatus to the personal computing system. A computer pointing device integral to the c... | 07/10/2007 |
| 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 |
| 7227673 | Color measurement with distributed sensors in a color hard copy apparatus A method and apparatus for color measurement using a physically distributed multiplicity of sensors. Broad band illumination is provided to irradiate a test pattern. The sensors are used to measure color characteristics of discrete areas of a region of the pattern t... | 06/05/2007 |
| 7223960 | Image sensor, an image sensor pixel, and methods of forming the same A semiconductor image sensor utilizing a metal mesh filter to transmit light of a specific wavelength to a photoconversion device, and method of making said image sensor. Semiconductor image sensor pixel cells using varied metal mesh filters may be arranged in a Bay... | 05/29/2007 |
| 7218656 | Control of spectral content of a laser diode light source In one exemplary embodiment, apparatus is provided with a plurality of laser diodes, sensing means and control means. During normal operation, the laser diodes produce a mixed light. The sensing means measures light that is output by the laser diodes; and the contro... | 05/15/2007 |
| 7212287 | Providing optical feedback on light color Optical feedback for controlling color of light from a light source is provided. Incident optical energy of the light is detected as a function of discrete steps of wavelength. For each discrete step of wavelength, an X, Y and Z tristimulus subvalue is produced. All... | 05/01/2007 |
| 7199839 | Color signal processing device for multi-primary color display and method thereof A color signal processing apparatus for a multi-primary display with a simple circuit construction and a color signal processing method achieves a display white by more than four display primaries. The color signal processing apparatus has a tristimulus value calcul... | 04/03/2007 |
| 7177476 | Method of decoding data encoded in a monochrome medium A method for decoding data that has been encoded in a monochrome medium utilizing the capability of the medium for grayscale resolution. A document is processed to provide an image in electronic format, in which each pixel has an assigned data value with a given bit... | 02/13/2007 |
| 7177032 | Device and method for determining the properties of surfaces A method for determining the properties of surfaces wherein a first process step specified radiation emits from at least one radiation source to a measuring surface, in further process steps the radiation reflected and/or scattered off the measuring surface is detec... | 02/13/2007 |
