Abstract:
A method and system for measuring a colour value of a target comprising a mobile communication device having a camera with a sensor arranged to detect wavelengths of incident light reflected from an illuminated target. The mobile communication device also has a processor arranged to measure a colour value of the target based on the detected wavelengths received from the sensor, and to output the measured colour value of the target for display on a display of the mobile communication device.
Abstract:
A calibration device 21 according to the present invention is a member used for white calibration of an optical characteristic measuring apparatus 1 for measuring an optical characteristic of a specimen arranged to close a measuring opening and is used together with a spacer 24. Accordingly, such a calibration device 21 can perform more accurate white calibration by preventing formation of an interference pattern by the spacer 24.
Abstract:
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 receivers. A second spectrometer system receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.
Abstract:
A fiber optic probe having one or more photodetectors bound thereto is provided. By directly integrating thin, flexible photodetectors with an optical fiber, the probes provide a compact structure that increases throughput and decreases cost, making it practical for a clinical use. In some embodiments, the fiber optic probes are small enough for insertion into the shaft of a needle, such as a biopsy needle.
Abstract:
A handheld or portable detection system with a high degree of specificity and accuracy, capable of use at small and substantial standoff distances (e.g., greater than 12 inches) is utilized to identify specific substances and mixtures thereof in order to provide information to officials for identification purposes and assists in determinations related to the legality, hazardous nature and/or disposition decision of such substance(s). The system uses a synchronous detector and visible light filter to enhance detection capabilities.
Abstract:
A spectral analysis apparatus includes a light transmissive envelope, first and second electrodes, a sleeve, and first and second electrical contacts. The light transmissive envelope contains a fluid operable to emit light when electrically energized. The first electrode is disposed upon an external surface of an end portion of the envelope external to the envelope. The second electrode is disposed upon an external surface of a second end portion external to the envelope. The sleeve defines a cavity configured to removably receive the envelope. The electrical contacts are in communication with the cavity and are configured to electrically connect to the corresponding electrode when the envelope is within the sleeve. The electrical contacts are connectable to an electrical power supply and electrically energize the fluid when connected to the electrical power supply.
Abstract:
A method for providing an intensity or brightness measurement using a digital image-capturing device comprising: selecting a target area within a field of view of the image-capturing device, the target area containing pixels; determining the brightness of pixels in the target area; accumulating the brightness values of the pixels in the target area; and determining a pixel value representative of the pixels in the target area. A device for making color measurements comprising an image-capture device, a processor or logic device, and a memory location for accumulating color data, and the processor or logic device is programmed to perform color measurements by accumulating the data for pixels located in the target area in memory, and determining a representative color value.
Abstract:
An imaging spectrometer provides substantially simultaneous areal spectroscopy and image generation to provide improved analysis of possible skin cancer.
Abstract:
An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image from the tooth and a second spectral range for exciting a fluorescence image from the tooth. A polarizing beamsplitter in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor, wherein the second polarization state is orthogonal to the first polarization state. A first lens in the return path directs image-bearing light from the tooth toward the sensor, and obtains image data from the portion of the light having the second polarization state. A long-pass filter in the return path attenuates light in the second spectral range.
Abstract:
A mobile terminal and a method of performing functions using the mobile terminal are provided. The mobile terminal performs various functions using color information acquired through a color sensor, and the method performs functions using the mobile terminal.