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7986411 |
Imaging of a turbid medium
An imaging system for imaging of a turbid medium comprises a radiation source to illuminate an object to be imaged. A detection system detects radiation from the object and includes a separation...
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7980650 |
System and method for calibrating a printing system to compensate for sensor artifact using non-complementary illuminations of test patterns on an image substrate
A system removes a light sensor artifact from a light sensor in a printer that is used to obtain reflectance measurements from test patterns printed on an image substrate. The system includes a...
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7944602 |
Systems and methods using interferometric optical modulators and diffusers
Various embodiments include interferometric optical modulators comprising a substrate layer having a thickness between about 0.1 mm to about 0.45 mm thick and a method for manufacturing the same....
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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...
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7920277 |
Method and apparatus for irradiating laser
A laser irradiation process includes: scanning a substrate with laser having a predetermined lasing frequency at different irradiation intensities to form a plurality of first irradiation areas...
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7911613 |
Method and system for predicting print colors
A colorimeter of a profile generator calorimetrically measures a color chart after elapse of a sufficient period of time from printing of the color chart, thereby producing post-dry-down...
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7903251 |
Representation of spatial-frequency data as a map
A method for representing the structural information in a biological or physical sample is disclosed. In this method, a time-frequency representation of the spatial distribution within a sample is...
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7889919 |
Image processing system and photographing apparatus for illuminating a subject
An image processing system includes a photographing apparatus and a processing apparatus. The photographing apparatus includes LEDs for emitting light with characteristics of spectroscopic...
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7876441 |
Control station for a printing press
A control station for a printing press, includes at least one true color monitor for displaying at least one soft proof serving as a color reference for printed copies printed during the printing...
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7864320 |
Method to minimize instrument differences in color management functions
A method for estimating color measurements of color samples includes printing a color sample based on input data, measuring a color of the printed color sample with an in-line spectral sensor at a...
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7787656 |
Method for counting people passing through a gate
Based on area and color analyses, a cost-effective bi-directional people counter dedicated to the pedestrian flow passing through a gate or a door is proposed. Firstly, the passing people are...
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7755762 |
Method of improving a color filter
A method of improving an initial color filter comprises a numerical generation of sinusoidal spectra. Two steps of selecting said spectra are then executed. The first selection is carried out...
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7736588 |
Apparatus and method for detecting undesired residues in a sample
Detection arrangement and method for detecting presence of a residue in a sample include determining color values of the sample, associated with the L*a*b color model. A value of a composite...
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7733489 |
Optical method of multi-band mixing
The color difference and/or chromaticness difference between target objects and background objects can be enhanced. Different colors with different color attributes mean different objects. In some...
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7724382 |
Method and apparatus for irradiating laser
A laser irradiation process includes: scanning a substrate with laser having a predetermined lasing frequency at different irradiation intensities to form a plurality of first irradiation areas...
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7710572 |
Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method
A fault detection and classification method is disclosed that uses raw back-focal-plane image data of radiation from a substrate surface, detected by a scatterometer detector, to determine a...
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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,...
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7492456 |
Method for operating a color measurement system
A color measurement system includes a hand held color measurement instrument, which may be provided with a wireless interface to a computer. The color measurement system includes a scanning guide...
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7477391 |
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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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5903346 |
Analysis system
In an analysis system including as light sources an incandescent lamp and a blue light emitting diode, the light of the two sources is combined and directed through filters and a test tube with...
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5864396 |
Color comparator system
A color comparator system is described which avoids the use of liquid reference standards and glass vials. In a preferred embodiment the system includes (a) a clear lens piece including a plurality...
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5818575 |
Lamp stablity diagnostic system
Two detectors are effectively positioned at a predetermined lateral position in a rectangular illumination field at a wafer plane. The ratio of the signals from the two detectors is calculated....
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5774213 |
Techniques for measuring difference of an optical property at two wavelengths by modulating two sources to have opposite-phase components at a common frequency
A technique for making precise spectrophotometric measurements illuminates a sample with two or more modulated light sources at two or more, typically closely spaced, wavelengths. Light from the...
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5766006 |
Tooth shade analyzer system and methods
An intraoral camera 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 tooth and the...
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5740079 |
Method for determining colorimetric value
The colorimetric value at a specified temperature is determined by measuring the colorimetric value of a colored material sample at an arbitrary temperature using a color meter such as a...
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5680220 |
Device and method for optically measuring the characteristics of a substance utilizing three wavelengths of light
A first embodiment of the invention includes a light source (1) lighting two parallel optical branches (b1, b2) controlled respectively by two optical shutters (4, 6), one comprising a transparent...
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