Abstract:
Une puce photonique pour l'éclairage d'une scène, la puce photonique comprend : - un substrat (10) comprenant une face avec une gravure (100), - des guides d'onde s'étendant parallèlement à un plan formé par la face gravée du substrat (10), configurés pour guider un faisceau lumineux, - des réseaux de diffraction (12), respectivement formés dans un des guides d'onde (11) et configurés pour extraire, hors du guide d'onde (11) dans lequel il est formé et vers la gravure (100) du substrat (10), le faisceau lumineux,
au moins deux guides d'onde étant configurés pour recevoir des faisceaux lumineux de longueurs d'onde différentes, et dans laquelle la gravure (100) du substrat (10) est configurée pour extraire les faisceaux lumineux hors du substrat (10), vers la scène à éclairer, ladite scène se trouvant contre la face gravée du substrat (10) et au niveau de la gravure (100) du substrat (10).
Abstract:
Examples embodiments of a removable optical assembly are disclosed. A removable optical assembly can be removably attached to a probe of an optical analytical instrument. The removable optical assembly can comprise a spherical optical element. An embodiment of the removable optical assembly can allow contact interrogation of a sample. In some embodiments, the removable optical assembly can comprise an internal optical element. In other embodiments, the removable optical assembly can comprise an external optical element. Manufacture of the removable optical assembly can comprise a monolithic embodiment or an assembled embodiment comprising a plurality of subassemblies. Embodiments of the removable optical assembly can be conical, cylindrical or planar is shape. The removable optical assembly can, in some embodiments, be consumable and/or disposable.
Abstract:
Embodiments of the present invention disclose an ambient light acquisition method, an ambient light analysis method and corresponding devices. An acquired ambient light parameter is sent to the ambient light analysis device through a wired communication route, so that transmission stability of the ambient light parameter can be guaranteed regardless of a surrounding electromagnetic environment; and meanwhile, a cost of the wired communication route is low, and a production cost of relevant devices can be reduced.
Abstract:
Optical computing devices including a light source that emits electromagnetic radiation into an optical train extending from the light source to a detector, a substance arranged in the optical train and configured to optically interact with the electromagnetic radiation and produce sample interacted radiation, a processor array arranged in the optical train and including a plurality of ICE arranged on a substrate and configured to optically interact with the electromagnetic radiation. The detector receives modified electromagnetic radiation generated through optical interaction of the electromagnetic radiation with the substance and the processor array. A weighting device is coupled to one or more of the ICE to optically apply a weighting factor to the modified electromagnetic radiation prior to being received by the detector, wherein the detector generates an output signal indicative of a characteristic of the substance based on beams of modified electromagnetic radiation.
Abstract:
A method and apparatus for measuring spectral information of light from at least one object (15); said apparatus comprising at least one light detecting means (34); and at least one transparent body (31) having a front side (F) including: an entrance surface (311) having positioned in or near thereof an entrance aperture means (30), and at least one reflecting surface (312); and said transparent body further having a back side (B) including: at least one reflecting surface (313) for reflecting light received from said entrance aperture means, and an exit surface (314); said detecting means being positioned in or near said exit surface; said first reflecting surface, said second reflecting surface, or both, having at least one diffractive optical element (32) and/or at least one focusing means (33). Such apparatus comprising more spectral channels, and such apparatus comprising distance sensing means.
Abstract:
The process allows to record onto a photographic emulsion or to visualize on a monitor, by means of a camera provided with a suitable sensor-detector, the different optic phenomena activated, on the surface to be investigated, by the I.R and U.V. radiations, so as to obtain quality information of extensive kind and not destructive or invasive manner for reaching, through a comparison with the visible image, the realization of homogeneity and non-homogeneity maps provided with the spectral absorption, reflection and transmission of the different elements present in the surface and in the layers immediately below said surface.
Abstract:
A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.
Abstract:
Systems for measuring optical properties of a specimen are disclosed. The systems are configured to sample signals related to the measurement of the properties of a specimen, and perform software-based coherent detection of the signals to generate resulting measurements are based on the signals acquired at substantially the same time instance. This facilitates the displaying or generating of the desired measurements in real time. In one configuration, the system is configured to direct a modulated light signal at a selected wavelength incident upon a specimen. In another configuration, the system is configured to direct a combined light signal, derived from a plurality of light signals at different wavelengths and modulated with different frequencies, incident upon a specimen. In yet another configuration, the system is configured to direct a plurality of light signals modulated with different frequencies incident upon different regions of a specimen.