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4 results about "Spectroradiometer" patented technology
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A spectroradiometer is a light measurement tool that is able to measure both the wavelength and amplitude of the light emitted from a light source. Spectrometers discriminate the wavelength based on the position the light hits at the detector array allowing the full spectrum to be obtained with a single acquisition. Most spectrometers have a base measurement of counts which is the un-calibrated reading and is thus impacted by the sensitivity of the detector to each wavelength. By applying a calibration, the spectrometer is then able to provide measurements of spectral irradiance, spectral radiance and/or spectral flux. This data is also then used with built in or PC software and numerous algorithms to provide readings or Irradiance (W/cm2), Illuminance (lux or fc), Radiance (W/sr), Luminance (cd), Flux (Lumens or Watts), Chromaticity, Color Temperature, Peak and Dominant Wavelength. Some more complex spectrometer software packages also allow calculation of PAR µmol/m²/s, Metamerism, and candela calculations based on distance and include features like 2- and 20-degree observer, baseline overlay comparisons, transmission and reflectance.
Advanced spectral sensing device for biometric diagnostics
PCT designated stageWO2026036143A1Radiation pyrometryColor measuring devicesSingle pixelBlood stream
A spectral sensing device and associated methods for enhanced diagnostic capabilities across medical fields are disclosed. The device incorporates multispectral, hyperspectral, and photoplethysmography technologies to analyze biological features including tongue, oral cavity, saliva, teeth, and other tissues. The system transforms any standard RGB camera into a multispectral imaging device by training machine learning models to associate RGB values with spectral values inside and outside the visible spectrum using measurements from a single pixel detector spectroradiometer. A multimodal neural network with separate processing branches analyzes spectral images, non-spectral images, and tabular data to predict microbiome composition. The system generates health risk assessments by comparing predicted microbial abundances to thresholds associated with various medical conditions. Near-infrared sensing enables blood flow monitoring, subcutaneous imaging, and assessment of physiological parameters. Convolutional neural networks enable spectral reconstruction without requiring the physical device, while supporting continuous monitoring in various form factors.
Owner:ANI BIOME INC
Convergent light path for solar spectral radiometer and method for adjusting coaxiality of optical axis thereof
This invention discloses a converging optical path for a solar spectroradiometer and its coaxial adjustment method, relating to the field of atmospheric measurement devices. The converging optical path includes a tracking optical tube and a measuring optical tube. The tracking optical tube consists of a pinhole, an adjustment mechanism, a four-quadrant detector, and an amplification and acquisition circuit. The measuring optical tube consists of a window, an aperture diaphragm, an off-axis parabolic mirror, a field-of-view diaphragm, a stray beam diaphragm, a meniscus lens, a neutral density filter, and a spectrometer. The method constructs a normalized evaluation index by acquiring a weighted integral sum of continuous spectral intensity from four quadrant signals and multiple preset reference bands (2–6 micrometers). A local five-point cross scan is performed centered on the current lock point to determine the optimal coaxial point and obtain target locking characteristics. Coaxial adjustment is triggered again upon power-on or when the evaluation index decreases. This invention improves the consistency between the measuring and tracking optical paths and the stability of direct-light measurements.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
A multi-source based spectroradiometer calibration method, system, and apparatus
The application provides a multi-light-source-based spectral radiometer calibration method, system and device, and belongs to the technical field of optical measurement. The method comprises the following steps: collecting spectral response functions of two light sources by using a target spectral radiometer; fusing the spectral response functions of the two light sources based on coinciding wavebands of the spectral response functions, to obtain a full spectral response function; then performing absolute calibration by using a third standard light source to obtain a third spectral response function; and obtaining a final calibrated full spectral response function based on the third spectral response function and the full spectral response function. The method uses a combination of two light sources to complete relative calibration for a wide-band spectral radiometer, successfully expanding the calibration waveband. On this basis, a high-stability standard light source is used to perform absolute calibration of radiation quantity, simplifying the calibration process of the wide-spectrum light source and ensuring the reliability of the calibration result.
Owner:NATIONAL INSTITUTE OF METROLOGY CHINA
Photon analyzer device, installation for the development of a living organism comprising such a device, and method for controlling such an installation
PendingFR3163447A1Photometry using reference valueSpectrum investigationOptical radiationBiological body
Photon analyzer device, installation for the development of a living organism comprising such a device and method for controlling such an installation. The invention relates to a photon analyzer device (17), comprising a spectroradiometer (21) for capturing light radiation and measuring a surface power density as a function of an emission wavelength between 350nm and 800nm, said radiation being emitted by a lighting system.According to the invention, the device comprises a housing (19) containing said spectroradiometer and an electronic board on which said spectroradiometer is integrated and comprising a computing unit (27) programmed to: - acquire, in real time, a measurement of surface power density from said spectroradiometer as a function of at least one emission wavelength, - convert, in real time, said measurement of surface power density into at least one value of the received photon flux density as a function of said emission wavelength. Figure 2.
Owner:LIGHT IN THE LED