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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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6285453 |
On-line color monitoring and control system and method
An on-line color monitoring and control system and method includes feeding of colorant in a given amount or ratio in order to achieve a desired color of a product. The system and method described...
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6276933 |
Dental translucency analyzer and method
The invention relates to a dental device which measures the translucency of the anterior tooth that is adjacent to the tooth to be restored and gives the translucency factor that is used for the...
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6278521 |
Method of and apparatus for bispectral fluorescence colorimetry
A novel modular bench-top bispectral fluorescence colorimeter and technique embodying in self-contained housing excitation and emission monochromator, preferably with fiber light guide...
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6271920 |
Methods and apparatus for color calibration and verification
Methods and apparatus for calibrating a color measuring instrument with a color standard and verifying the color standard and calibration are provided. One method includes providing a color...
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6262804 |
Handheld color measurement instrument
The specification discloses a handheld color measurement instrument including a housing adapted to be held by a human hand. A plurality of support rollers support the housing for movement in a...
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6249751 |
Method of measuring gonio-spectral reflectance factor
The present invention is a method of measuring a gonio-spectral reflectance factor to establish a gonio-spectral reflectance factor database available for a personal computer by which a highly-fine...
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6233395 |
Method for quantitative iris colorimetry
A method for carrying out quantitative iris colorimetry on an eye is disclosed comprising the steps of detecting the iris coloration by means for converting it into an electronic signal,...
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6204923 |
Device for color matching or color measurement
An apparatus is proposed for the color matching or colorimetry of colored samples, which are arranged in a sample support. It comprises a lighting device which illuminates the sample in a main beam...
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6163377 |
Colorimeter
A colorimeter capable of calibrating color monitors, whether having cathode ray tube or liquid crystal (LCD) displays, is provided by a photometric array of photodetector and optical filter pairs....
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6160624 |
Method for verifying silver-based lithographic printing plates
A method is disclosed for verifying the printing quality of a lithographic printing plate which is obtained by a plate-making process whereby an ink-receptive silver image is formed at the printing...
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6144455 |
Fluorometer
A fluorometer has a partly transparent mirror through which excitation light is directed to the sample and via which emitted light from the sample is reflected. Thus a high sensitivity and,...
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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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6122062 |
3-D camera
A 3-D camera system (10) includes a light source (12) and a grating (14) spaced at a predetermined distance from the light source (12). The light source (12) and grating (14) project a shadow of...
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6111650 |
Method and apparatus for color matching of slightly colored translucent objects such as teeth and dental prosthesis, in particular
The invention relates to a method and apparatus for color matching of slightly colored objects which are transparent, diffusing an absorbent, by acuminating a small error of the objects with a...
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6111973 |
Method for producing color-comparable photographs with fleshtone color selections for prosthetic fabrication
Disclosed is a method of producing color-comparable photographs with which a prosthetic fabrication artist can determine whether photographs taken of an amputee's extremity are color-true and...
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6108095 |
Method and system for determining a color formula to enable reproduction of a color standard on one or more production lines
A method and a system for determining a color formula to enable reproduction of a color standard on one or more production lines, which includes for example, reading a color spectrum of the color...
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6100982 |
Method and apparatus for determining a scanning track for a narrow color bar
The present method includes moving a light reading head along the length of a color bar whose length lies in an X direction and simultaneously therewith moving said light reading head in a Y...
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6091491 |
Optical fingerprinting of plastics compositions
A plastics material which contains a pigment composition comprising a pigment having adsorbed on its surface, or as a physical mixture, up to 10% by weight, based on the total weight of pigment...
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6091501 |
Method of keeping measuring window of measuring device clean, and measuring device
The invention relates to a method of keeping a measuring window of a measuring device clean, and to a measuring device. Gas is blown onto the surface of the measuring window (2) of the measuring...
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6090158 |
Localized finishing of garment workpieces
A method and system is disclosed for producing localized abraded, faded and worn finishing effects on a garment by applying a finishing pattern to its component pre-cut, individual fabric...
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6087608 |
Method and apparatus for recognizing foreign substances in and separating them from a pneumatically conveyed fiber stream
A fiber processing method includes the steps of removing fiber tufts from a series of fiber bales; pneumatically conveying the fiber tufts in a duct; forming images of the conveyed material as it...
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6088095 |
Model-based spectral calibration of color scanners
A target-less calibration system for calibrating a scanner for a particular input medium without using a dedicated calibration target on that medium is disclosed. The system employs the...
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6088112 |
Image sensor having test patterns for measuring characteristics of color filters
The present invention relates to an image sensor; and, more particularly, to an image sensor having test patterns for measuring characteristics of color filters. In accordance with the present...
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6078398 |
Pattern analyzer
A patterned sample is analyzed by traversing a light spot across the sample and analyzing detected color at several sites to spatially resolve the pattern. A pattern analyzer includes a holder for...
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6067504 |
Method for correctly identifying hair color
Methods and apparatus for determining accurate hair color classificatinos and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a...
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6067166 |
Apparatus for mounting an electro optical measuring device, especially a colorimeter on a monitor
A mounting for a colorimeter enables it to make measurements of light emanating from a color monitor screen without affecting the colors produced by the screen or allowing the entry of ambient...
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6064487 |
Method for calculating dye formulations of pigmented effect dyeing tones
Process for calculating colour formulations of pigmented special-effect shades wherein i) for each pigment on which a colorant system is based a set of calibration panels is created, and the...
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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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6052195 |
Automatic colorant mixing method and apparatus
A method of mixing colorants to achieve a target color includes combining individual colorants, detecting an output color of the combined colorants with a color sensing device and automatically...
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6043893 |
Manually portable reflectance spectrometer
Manually portable reflectance spectrometer and method of detection of absorption and reflection of light, wherein the visible and invisible (infrared) light is derived from LEDs. A phototransistor...
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6031617 |
Scanning colorimeter with x-y drive
A colorimeter for reading color bars of printed sheets or the like includes a longitudinally extending base including a paper stop along which a sheet to be tested for color may be positioned. An...
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6018385 |
Measuring system for registering reflectances on printed products
A measuring system for registering reflectances on printed products, the measuring system having at least one illumination channel for producing a scanning spot at a point on a measurement field on...
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6014221 |
Method and apparatus for color matching
In a process for choosing a color most closely replicating an object's actual color, a computer processor programmed with a database of sets of digital color data and the corresponding formulas for...
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6008905 |
Method and apparatus for determining the appearance of an object
A method for determining the appearance of an object to be replicated and an apparatus therefor are described herein. The method consists in providing a controlled illumination to illuminate a...
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5976882 |
Method for measuring ash content of food stuff
A method for measuring ash content of food stuff is carried out by 1) preparing, with respect to food stuff samples whose ash content values are known, a calibration curve by a non-linear analysis...
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5975674 |
Optical path optimization for light transmission and reflection in a carriage-mounted inkjet printer sensor
Light emitted from an obliquely angled LED source is directed by peripheral light tube walls which extend vertically toward media displaying printed indicia. The emitted light provides an...
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5973800 |
Method and apparatus for simulating color print
An illuminance spectrum I of reflected light from a color print of an N-order color having an arbitrary dot percent d 1 -N is defined by a diffuse reflection coefficient Sb(d 1 -N,λ) and a...
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5966217 |
System and method for distinguishing an item from a group of items
The present invention discloses an electromagnetic source which transmits electromagnetic radiation to an object. The electromagnetic radiation then either passes through the object or is reflected...
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5963334 |
Apparatus and method for measuring color of a measurement object
A color measuring apparatus is provided with a radial illumination unit for projecting illumination light to a measurement object at a first illumination angle in a plurality of directions, a...
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5959736 |
Method and arrangement for determining the color-type of a test subject
The invention concerns a method of determining the color-type of a test subject, wherein a selection is made on the basis of a mixed color according to the amount of primary color portions present...
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5953129 |
Method and a device for the continuous colorimetry of plastics molding compounds
A method for the continuous colorimetry of plastics molding compounds, which involves light being introduced, via transmitter light pipes and a sensor head, into the melt of the molding compound...
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5952234 |
Apparatus for measuring ash content of food stuff by ultraviolet radiation
A method for measuring ash content of food stuff is carried out by 1) preparing, with respect to food stuff samples whose ash content values are known, a calibration curve by a non-linear analysis...
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5949549 |
Colorimeter with a beamsplitting prism
A colorimeter for measuring colour of process medium comprising two light sources and two detectors both light sources being arranged to emit a beam through the process medium and the windows...
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5933243 |
Device for color measuring
A color measuring device measures the light transmitted through the material to be measured as well as the light reflected therefrom and the irradiated light and measures the color reflectivity in...
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5933244 |
Method of article identification through color determination
A method of detecting the color of an article such as gambling chips to permit the different color chips to be sorted. The method comprises sensing the color of the article at a plurality of places...
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5886775 |
Noncontact digitizing imaging system
An apparatus and method for imaging a surface of a target object that produces a three-dimensional image of the target object without mechanical contact from a hand-held, free-motion scanner. In...
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5875026 |
Method and system for spatial filtering of an extended radiation source with chromatic aberration of imaging optics in single-element detector measurement for monitoring of the extended radiation source
A method and system is disclosed in which the local variation of an extended radiation source is monitored with single-element detector. The chromatic aberration of the imaging optics induces the...
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5869272 |
Methods for detection of gram negative bacteria
Method for the determination of chlamydial or gram negative bacterial antigen comprising contacting a sample potentially containing extracted antigen with an optically active surface comprising an...
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