Abstract:
Provided are devices and methods for grouping light emitters and devices including the same. Embodiments of such methods may include selecting a portion of the light emitters using a region of a multiple axis color space that is configured to represent each of a plurality of colors as at least two chromaticity coordinates. The region may be proximate a predefined point on the multiple axis color space and includes a major axis having a first length and a minor axis having a second length that is less than the first length.
Abstract:
PROBLEM TO BE SOLVED: To provide an illumination device and an image reading apparatus that have improved heat resistance and spectral characteristics.SOLUTION: An illumination device used in an image reading apparatus that moves relative to a read area of a document comprises: a light source; a light guide that has an incident surface on which light from the light source is incident and an emission surface from which the light from the light source is emitted; and spectral characteristics adjustment means that is provided between the light source and the light guide, and has a multi-layer film for reflecting infrared light toward the light source side on a surface of a substrate made of glass facing the light source.
Abstract:
Optical computing devices may include capacitance-based nanomaterial detectors. For example, an optical computing device may include a light source that emits electromagnetic radiation into an optical train extending from the light source to a capacitance-based nanomaterial detector; a material positioned in the optical train to optically interact with the electromagnetic radiation and produce optically interacted light; and the capacitance-based nanomaterial detector comprising one or more nano-sized materials configured to have a resonantly-tuned absorption spectrum and being configured to receive the optically interacted light, apply a vector related to the characteristic of interest to the optically interacted light using the resonantly-tuned absorption spectrum, and generate an output signal indicative of the characteristic of interest.
Abstract:
Optoelectronic modules operable to collect distance data and spectral data include demodulation pixels operable to collect spectral data and distance data via a time-of flight approach. The demodulation pixels include regions with varying charge-carrier mobilities. Multi-wavelength electromagnetic radiation incident on the demodulation pixels are separated into different portions wherein the respective portions are used to determine the composition of the incident multi-wavelength electromagnetic radiation. Accordingly, the optoelectronic module is used, for example, to collect colour images and 3D images, and/or ambient light levels and distance data. The demodulation pixels comprise contact nodes that generate potential regions that vary in magnitude with the lateral dimension of the semiconductor substrate. The potential regions conduct the photo-generated charges from the photo- sensitive detection region to a charge-collection region. The photo-generated charges are conducted to the charge-collection region with respective drift velocities that vary in magnitude with the thickness of the semiconductor substrate.
Abstract:
Optical analysis systems and methods may be used for analyzing the characteristics, including compositions, of cement additives, which may be used in formulating a cement slurry. For example, a cement additive may be optically interacting with an integrated computational element ("ICE") configured to detect a characteristic of the cement additive. An output signal may then be generated corresponding to the characteristic of the cement additive detected by the ICE, which may be received and processed with a signal processor to yield a value for the characteristic of the cement additive. The value of the characteristic of the cement additive may then be used to determine an amount of the cement additive for use in producing a cement slurry.
Abstract:
A disclosed remote work system (100) includes a light source (102) and a nonlinear converter (108A-N) optically coupled to and remote from the light source. The nonlinear light converter converts a narrowband light pulse received from the light source to a converted spectrum light pulse. The system also includes a work element (110A-N) coupled to the nonlinear light converter. The work element performs a work operation using the converted spectrum light pulse. A related remote work method includes generating a narrowband light pulse and conveying the narrowband light pulse to a remote location (114). The method also includes converting the narrowband light pulse to a converted spectrum light pulse at the remote location. The method also includes performing a sense operation or work operation at the remote location using the converted spectrum light pulse.
Abstract:
A device includes a freely manipulable color-mapping wand. The wand includes at least one color detector for measuring an intensity of light within at least one spectral range that is incident from a region of a surface. A navigation sensor produces a signal that is interpretable to yield a position of at least a portion of the color-mapping wand.