Abstract:
Apparatus for performing Raman spectroscopy may include a first laser source having a first emission wavelength and a second laser source having a second emission wavelength. A separation between the first and second emission wavelengths may correspond to a width of a Raman band of a substance of interest. A switch may provide switching between the first and second laser sources. An ensemble of laser emitters may be provided. A Bragg grating element may receive laser light from the ensemble. An optical system may direct light from the Bragg grating element into an optical fiber. A combined beam through the optical fiber may contain light from each of the emitters.
Abstract:
A spectroscopy system for auto-aligning a biopsy collecting device is presented. The spectroscopy system includes an illumination subsystem configured to emit an illumination light towards the biopsy collecting device, whereas the biopsy collecting device includes an activator unit and a needle unit and wherein the needle unit includes a cannula and a stylet having a biopsy specimen. Also, the spectroscopy system includes a fixation subsystem capable of holding the biopsy collecting device and configured to place the needle unit comprising the biopsy specimen across the illumination light. Further, the spectroscopy system includes a detection subsystem configured to receive a light comprising at least one of an attenuated illumination light and a re-emitted light from the needle unit. In addition, the detection subsystem is configured to send a control signal to align the needle unit at a predetermined position in the spectroscopy system based on the received light.
Abstract:
A disclosed remote work system includes a light source and a nonlinear converter 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 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. 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:
An illumination device and an image reading apparatus having improved heat resistance and spectral characteristics are provided. An illumination device used in an image reading apparatus that moves relative to a read area of a document includes: a light source; a light guide including an incident surface on which light from the light source is incident and an exit surface from which light from the light source exits; and a spectroscopic unit that is provided between the light source and the light guide and includes, on a surface of a glass substrate facing the light source, a multi-layer film for reflecting infrared light toward the light source.
Abstract:
A spectroscopic detector includes a spectroscopic element for dispersing light, a photodetector for detecting the light dispersed by the spectroscopic element and a condensing optical system for condensing the dispersed light to the photodetector and compensating for a deviation in a detected wavelength deriving from nonlinearity of the angle of emergence generated in the spectroscopic element through chromatic aberration of magnification.
Abstract:
An infrared sensor module, a touch sensing method thereof, and an auto calibration method applied to the same are disclosed, the touch sensing method includes turning on the infrared sensor module which includes a sensor block with a light receiving region and is arranged to be perpendicular to a surface of a display panel, the light receiving region being divided into m×n blocks (where, each of m and n is a natural number of two or more) arranged in m rows by n columns, each of the blocks having a plurality of light receiving pixels arranged in a row direction, scanning optical signals of each block, selecting the block having maximum output optical signals with respect to the blocks of each column, and summing the optical signals of the light receiving pixels of the block selected from the column.
Abstract:
Imaging systems, imaging device analysis systems, imaging device analysis methods, and light beam emission methods are described. According to one aspect, an imaging device analysis method includes receiving initial light comprising a plurality of wavelengths of light, filtering some of the wavelengths of the initial light forming a plurality of light beams comprising different wavelengths of light, after the filtering, optically communicating the light beams of the different wavelengths of light to an imaging device, receiving the light beams using the imaging device, and analyzing the imaging device using light, wherein the light beams comprising the different wavelengths of light are emitted beams after the receiving.
Abstract:
Apparatus for performing Raman spectroscopy may include a first laser source having a first emission wavelength and a second laser source having a second emission wavelength. A separation between the first and second emission wavelengths may correspond to a width of a Raman band of a substance of interest. An optical switch may provide switching between the first and second laser sources. An ensemble of individually addressable laser emitters may be provided. A Bragg grating element may receive laser light from the ensemble. An optical system may direct light from the Bragg grating element into an optical fiber. A combined beam through the optical fiber may contain light from each of the emitters.
Abstract:
There is disclosed a system comprising Raman spectroscopy used to detect key characteristics of ice formation on aircraft wings and engines in real time. This disclosure provides a method and apparatus for early detection of icing. The disclosed apparatus is suitable for use in aircraft, boats, oil rigs, wind turbines, and the like.
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.