Abstract: Low-cost assay test strip readers enable creation of profiles of analyte reactions detected on an assay test strip utilizing a simple detector fixedly mounted to a body of the reader. The detector may be a single detector, such as a photodetector, which detects an optical signal at a single point. The assay test strip is inserted and/or removed from the test strip reader and the detector detects the optical elements of the strip during such insertion and/or removal. The movement of the test strip with respect to the body enables the detector to scan a length of the test strip, thereby generating a profile of optical signals representing analyte reactions along a one-dimensional portion of the test strip. The reader may convert the detected profile into a displayable indication of analyte concentrations for diagnostic purposes.

Abstract: This disclosure describes a compact and lightweight rifle scope display adapter configured to be affixed in front of the objective lens of a rifle scope. The display adapter includes a receptacle that enables the adapter to be electrically connected to a ballistic computer, rangefinder or other targeting mechanism. The display adapter is configured to receive aimpoint information and project illuminated symbology that is brought into focus by the rifle scope optics in such a way that the symbology appears to overlay an image of a scene on which the rifle scope is focused. The display adapter includes a casing that houses processing circuitry, a light emitting diode, polarizer, polarized beam splitter, liquid crystal on silicon imaging element and reflective element. The display adapter also includes a light bar, spherical mirror, quarter-wave plate and an additional polarized beam splitter contained within the light bar.

Abstract: A target acquisition device and a system thereof called ArmConnect™ are disclosed. The target acquisition device of the present invention comprises an optical module, an image sensor, a compass, an acceleration sensor, an accessory connector, a display and a sight control circuit. The target acquisition system of the present invention comprises a target acquisition device, a range finder and a mobile device, wherein the target acquisition device further comprises a wireless transmission module for connecting to the mobile device. The range finder is connected to the target acquisition device by the accessory connector. Some assistant devices, such as a remote control, a weather station, a night vision, a recorder, a camera and etc., can also be connected to the target acquisition device for providing supports to make the ammunition hit the target.

Abstract: A device for matching the skin shade of a person with the shade of a cosmetic composition includes a tape having a plurality of transparent and opaque portions. The opaque portions have different shades and unique shapes that are coded to so that each portion can be matched to a cosmetic composition of a particular shape by the shape of the portion. When the tape is attached to or at least placed adjacent to the body portion of a person, the opaque portion having a shade that is close to the shade of the skin of the respective body portion becomes substantially invisible.

Abstract: An apparatus for identifying differences in the visual and recorded appearance of colors and gray tones illuminated by light sources having different spectral distribution and having: a first image with illumination, with separate and different color elements and with gray scale elements, apertures in the first image adjacent to the elements, a second image with illumination having a plurality of separate elements of color and gray scale, corresponding to the elements of the first image so that the elements on the second image are viewable through the apertures in the first image, with corresponding color and gray scale elements adjacent to one another in the first and second images, and a method of comparing light quality using such apparatus.

Abstract: A device, method and system are provided for analyzing urine color to determine the hydration level of an individual. The device is nonabsorbent and includes a water-resistant adhesive configured to adhere the device to a urine receptacle such as a urinal or toilet. The device includes a color scale possessing a plurality of shades of yellow arranged from lightest to darkest. Each shade of yellow corresponds to a hydration level. The device allows the individual to assess their hydration level while simultaneously urinating into the urine receptacle.

Abstract: A method is disclosed for inspecting a mold which has a porous alumina layer over its surface. The method includes providing, based on a relationship between a first parameter indicative of a thickness of the porous alumina layer and a color parameter indicative of a color of reflected light from the porous alumina layer, first color information which represents a tolerance of the first parameter of a porous alumina layer which has an uneven structure that is within a tolerance; providing a mold which is an inspection subject, the mold having a porous alumina layer over its surface; obtaining a color parameter which is indicative of a color of reflected light from the porous alumina layer of the inspection subject mold; and determining a suitability of the first parameter of the inspection subject mold based on the obtained color parameter and the first color information.

Abstract: This invention provides a novel methods and devices for measurement of particle concentration or changes in particle concentration over a wide linear range. The invention comprises one or more radiation sources and one or more detectors contained in a housing which is interfaced to a medium containing particulate matter. The one or more radiation sources are directed into the medium, scattered or transmitted by the particulate matter, and then some portion of the radiation is detected by the one or more detectors. Methods for confining the measurement to a specific volume within the medium are described. Algorithms are provided for combining the signals generated by multiple source-detector pairs in a manner that results in a wide linear range of response to changes in particle concentration. In one embodiment the sensor provides non-invasive measurements of biomass in a bioreactor. In another embodiment an immersible probe design is described, which may be suited for one-time use.

Abstract: An apparatus having an optical reader system and method for label-independent detection having improved spatial resolution of the reader, as defined herein. The system includes an optical configuration for interrogating a sensor on a microplate at an incident angle (?1) of greater than 45°, and recording the image received from the contacted sensor with the image recorder, the image recorder being oriented with respect to the reflected beam at a reflected angle (?2) of greater than about 5°, as further defined herein.

Abstract: 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 illumination of the device. The measurements may include measuring the spectra of light reflected from the device being tested as well as from specular bright and dark standards. The spectra may be used to determine a reflectance spectrum and color parameters for the specular reflective device.

Abstract: A system comprising a plurality of comparison samples each having a reflectance spectrum and being configured to substantially simulate a color of a keratinous element having a reflectance system. The reflectance spectrum of each comparison sample may be substantially similar to the reflectance spectrum of a respective keratinous element such that the comparison sample and the keratinous element appear to an observer to have substantially the same color under at least two differing illuminants.

Abstract: The present invention provides a viewing scope adapted to be mounted on a device, such as a rifle or camera. The viewing scope may include a body module, an objective module, a test module, and a control module. The test module may be configured to test the performance of the scope. The control module may include a series of user inputs that can be accessed and activated by a user without requiring the user to move his or her visual focus from the scope.

Abstract: A leaf color chart, calibration table and assessment chart and method for determining the nutrient status of a field crop such as rice. The leaf color chart has a palette of colored panels held within a planar support structure that have the same spectral reflectance characteristics as exhibited by a plant. In one embodiment the colors of the panels are defined by red-green (a*) and blue-yellow chromaticity (b*) and luminescence (L*) variables and are partitioned according to intervals in the blue-yellow scale. The calibration table is an array of percent nutrient values indexed according to the color panels of the leaf chart and the variety of plant. The assessment chart includes a graph of nutrient level values from the calibration table compared to the plant growth stage for various plant varieties and indicates the status of the crop as being deficient, adequate, critical or excessive.

Abstract: A system comprising a plurality of comparison samples configured to substantially simulate the appearance of a keratinous element. Each comparison sample may be configured to substantially simulate both a color and an appearance characteristic other than color of the keratinous element.

Abstract: A fan deck display having a case including a center wall joined between a pair of side walls. Each of the side walls has a longitudinal free edge with a plurality of undulations formed therein. A plurality of color strips are movably connected to the case. Each of the color strips has a plurality of color swatches and a free edge with a plurality of undulations formed therein. When the color strips are in a retracted position inside the case, the undulations in the color strips are aligned with the undulations in the free edges.

Abstract: A system comprising a plurality of comparison samples configured to substantially simulate the appearance of a keratinous element. Each comparison sample may be configured to substantially simulate both a color and an appearance characteristic other than color of the keratinous element.

Abstract: 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 formulation of colorants and metallic or pearlescent pigments are measured with a goniospectrophotometer and stored in a computer memory beforehand and, in performing a CCM using the stored data, reproduction spectral reflectances are calculated by reflecting the changes in spectral reflectance due to changes in the amount of the metallic or pearlescent pigments.

Abstract: 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 standard having a surface with at least two different colors (preferably arranged for a simultaneous color measurement), calibrating the instrument, and verifying that said color standard is an authorized color standard of a predetermined specification and that the calibration of the color measuring instrument has achieved predetermined specified results. Some of the provided methods and apparatus use a photosensitive portion of the color standard that changes color in a known way when exposed to a predetermined dose of light. Various color standards for use with this invention are provided.

Abstract: In the measurement system for detecting optical signals of microassays, the signal-generating test objects 5 are arranged on an investigation surface of a planar carrier 4. The planar carrier 4 is, in particular, a microtitre plate for biological objects. In principle, the measurement system comprises an optical imaging arrangement which reduces the size of the test objects 4 to be measured in such a way that all the objects are imaged completely on a two-dimensional, photosensitive image sensor 6.

Abstract: 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 areas, characterized in that said method comprises the step of matching the color of the silver image of said plate with a plurality of reference colors contained in a color reference system that provides information regarding the quality of silver-based lithographic printing plates having said reference colors. The color reference system may also provide information regarding the parameter(s) of the plate-making process so that said parameter(s) can be adjusted in order to improve the quality of the plates obtained by said process.

Abstract: 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 color measuring instrument to arrive at Hunter L, a and b values for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.

Abstract: The present invention is an apparatus for measuring the constituent concentration of a specimen on the basis of the color change in a test material housed in a test piece, which has reacted because of the specimen. The apparatus irradiates the test material which is a test piece loaded in the apparatus's main body and detects the intensity of the light reflected by the test material. A detection signal detected in the above way is sampled in a time period before and after the measurement timing at which the test material changes in color because of the specimen. An average value of the sampled detection signals is determined. The constituent concentration of the specimen is computed by referring to a stored conversion table on the basis of the average value determined in the above way.

Abstract: Kits which allow colors to be identified and thereby communicated by their unique chromatic and/or achromatic characteristics include a number of discrete color plaques. These color plaques are preferably arranged in chromatic and achromatic series such that individual plaques may be combined with other plaques to form a stack so that the collective color characteristics of the stack may be observed visually. In preferred embodiments, the chromatic plaques in the kits will be arranged in rows and columns in order of the individual plaque's color hue and value characteristics. The achromatic plaques, on the other hand, are simularly arranged in columns and/or rows in order of the plaque's particular achromatic value characteristic.

Abstract: A system produces a standardized image of an object from an intermediate object recorded on film. An image of a spectrum of the light source illuminating the object is recorded on the film together with the image of the object. The image of the spectrum on the film is recorded by a film scanner and compared with the spectrum of a standatd illuminant. Color correction data is generated from the comparison. The color correction data may be used to control a photographic printer to produce a color corrected print. The color correction data may also be used to correct a digital image of the object produced by scanning the image of the object on film.

Abstract: A system for electronically recording a standardized color image of an object. The system incorporates a linear variable bandpass filter and a linear variable neutral density filter.

Abstract: Method for printing and article produced thereby which uses the six chromatic colors yellow, green, cyan-blue, violet-blue, magenta, red and orange-red and wherein a plurality of color field tables are produced for combinations of two of the chromatic colors which are juxtaposed or neighboring and a plurality of tables for each specific combination is made by varying the amount of black on different color field tables. The color field tables can be utilized to match and obtain desired colors by comparing color field tables with desired colors. If the printing material is not white, the eighth color white may also be used in the printing process.

Abstract: A colorimeter comprises a case, a liquid crystal display (LCD) mounted on the case, a color chart provided on the case to permit holding of a specimen to be compared in close proximity to the color chart, and switches for indicating which color on the color chart the color of the specimen most closely approximates. Each switch is located adjacent a color on the color chart, and the states of the switches drive the LCD to display a reading corresponding to the color on the color chart which most closely approximates the color of the specimen.

Abstract: An apparatus and method for reading agglutination tests and other procedures by scanning the contents of a microtest well or other sample-holding vessel to determine a certain charactersitic of the contents, such as the size of an agglutination button or other solid mass in the well.

Abstract: A method and apparatus for the colorimetric testing of non-opaque fluids that comprises compact test kit apparatus made from readily available plastic components, and sets of such test kits made even more compact by a combination of chemistries for certain tests that simplifies and improves the accuracy of those tests while reducing the number of test kits required in a set. The colorimeter component of each test kit provides non-opaque colored plastic windows made from readily available commercial materials that are accurately color controlled. The colorimeter also makes automatic correction of the color windows to compensate for any initial coloration in the fluid being tested. The colorimeter also serves as the container for one complete kit and allows a set of kits to hang from closely spaced hooks to conserve space and make them exceptionally convenient to use.

Abstract: A color control system for color separation, developing and printing fields including a plurality of strips of film with each strip containing color information and combining to form a color proof. A proof can be analyzed by eye or compared with a control wedge with conforming color information. The proof includes grey balance material visible from highlight through shadow to render grey when all colors are trapping correctly and show color differences on the proof when the colors are not trapping correctly. Color change indicators are on the proof to indicate unacceptable two color combination or an excess of a percentage of a contaminating color in a three color arrangement. Slur controls are on the proof to determine color slurring and permit the analysis of the percentage of color slurring when the proof is compared with later proofs or a control wedge.