Abstract: Spectrographic measurements are often limited by the amount of light that is available. Photons that are not collected or measured reduce the signal to noise and therefore reduce measurement precision. This invention collects the zero order light and sends it through the spectrometer again. In an atmospheric LIDAR, the zero order recycling is estimated to increase the rotational Raman signal by an additional 20%. A grating based spectrometer where the zero order light is collected by a lens or mirror and focused into a fiber optic that sends the light to the input slit where it is directed into the spectrometer again. There can be a plurality of recycle fibers. The detector can be either a single linear array or a two dimensional array such as a CCD or CMOS camera.

Abstract: A reflection rate detection device and reflection rate detection method for a liquid crystal panel are provided by embodiments of the present application. A sphere of the liquid crystal panel is a hollow sphere, and an inner wall of the sphere is uniformly sprayed with diffuse reflection materials. The sphere is provided with a window hole, and the window hole corresponds to the liquid crystal panel. The emitting light source is disposed on the sphere, the emitting light source is configured to emit light, and emitted light enters the liquid crystal panel. The receiver is configured to receive reflection energy of the liquid crystal panel. A reflection rate of a large-area liquid crystal panel can be detected by the present application.

Abstract: Disclosed herein are systems and devices for use in determining a level of a trait in an agriculture or food product sample. Further disclosed is a portable spectrometer system coupled with chemometric analysis methods to determine a level of a trait in an agriculture or food product sample, the portable spectrometer system comprising: a spectrometer; a sample stage adjacent the spectrometer; a motor coupled to the sample stage; and a system housing enclosing the motor and the spectrometer; wherein rotation of the motor rotates the sample stage, and wherein the motor is controllable in response to spectroscopy requirements.

Abstract: A processor implemented method of detecting a concentration of plurality of chemical residue in an agricultural produce is provided. The method include (a) receiving, by a hyper spectral device, a data set associated with one or more reflectance measurements of the agricultural produce; (b) determining, data associated with a plurality of bands; (c) dynamically reiterating, the steps (a) and (b) at predetermined time interval to obtain a trained dataset; (d) determining, relevant wavelengths among the selected trained data sets based on a feature selection technique to form an array of emitters; (e) calibrating, by the identified array of emitters, to emit light on the detecting region of one or more sample of the agricultural produce to obtain data associated with reflectance and transmittance; and (f) calculating, a calibration index with a de-multiplication flag to detect presence or absence of the plurality of chemical residue in the agricultural produce.

Abstract: The present disclosure relates to the technical field of growth environment control for plants, and provides a light regulation method, system, and apparatus for a growth environment of leafy vegetables. The method includes: obtaining a growth environment image and growth environment light parameters of leafy vegetables; inputting the growth environment image into an image segmentation model to obtain an initial pixel segmentation map; determining a leaf area of the leafy vegetables according to the initial pixel segmentation map by using a Class Activation Mapping (CAM)-K algorithm; inputting the leaf area and the growth environment light parameters of the leafy vegetables into a leafy vegetable growth index prediction model to obtain a growth index of the leafy vegetables; adjusting the growth environment light parameters according to the growth index of the leafy vegetables. This disclosure achieves automated and intelligent control of light conditions in the growth environment of leafy vegetables.

Abstract: The present invention provides an improved sorbent and corresponding device(s) and uses thereof for the capture and stabilization of volatile organic compounds (VOC) or semi-volatile organic compounds (SVOC) from a gaseous atmosphere. The sorbent is capable of rapid and high uptake of one or more compounds and provides quantitative release (recovery) of the compound(s) when exposed to elevated temperature and/or organic solvent. Uses of particular improved grades of mesoporous silica are disclosed.

Abstract: Disclosed is Raman spectroscopy equipment including a light source unit configured to generate excitation light, a first optical fiber configured to transmit the excitation light received from the light source unit, a light radiation unit configured to receive the excitation light from the first optical fiber, a target material located near the light radiation unit, the target material being configured to receive the excitation light from the light radiation unit and to generate first scattered light, a light focusing unit configured to concentrate the first scattered light in the vicinity of the target material and the light radiation unit and to change the first scattered light to second scattered light, a second optical fiber configured to transmit the second scattered light received from the light focusing unit, and a spectroscopy unit configured to convert the second scattered light received from the second optical fiber into an electrical signal.

Abstract: There is provided a dual camera apparatus, an electronic apparatus including the same, and a method of operating the same are disclosed. The dual camera apparatus includes a first camera that acquires an entire image of a subject; and a second camera different than the first camera. The second camera includes a first light source, an optical element concentrates light emitted from the first light source onto a portion of a region of the subject and an image sensor that records spectrum information with respect to the portion of the region of the subject.

Abstract: According to some embodiments of the invention, a near-infrared fluorescence endoscopic dental imaging system includes an endoscope forming a plurality of lumens therein; a spectrometer optically coupled to a first lumen of the endoscope; a near-infrared camera optically coupled to a second lumen of the endoscope; a data processor in communication with the spectrometer and the near-infrared camera; and a display system in communication with the data processor. The near-infrared camera is configured to capture a near-infrared two-dimensional dental image of a specimen and transmit the near-infrared two-dimensional dental image to the data processor. The spectrometer is configured to capture fluorescent light from the specimen and provide a spectroscopic signal to the data processor. The display system is configured to communicate with the data processor to receive the near-infrared two-dimensional dental image and the spectroscopic signal and to display a two-dimensional dental image of the specimen.

Abstract: Various methods and systems are provided for analyzing sample inclusions. As one example, a correction factor may be generated based on inclusion properties of a first sample determined using both an optical emission spectrometry (OES) system and a charged-particle microscopy with energy dispersive X-ray spectroscopy (CPM/EDX) system. The OES system may be calibrated with the correction factor. The inclusion properties of a second, different, sample may be determined using the calibrated OES system.

Abstract: Provided are an optical filter and a spectrometer including the optical filter. The optical filter includes at least one first filter element having a first center wavelength of a first wavelength band, and at least one second filter element arranged on a same plane as the at least one first filter element, the at least one second filter element having a second center wavelength of a second wavelength band. The at least one first filter element includes a first bandpass filter including a plurality of first Bragg reflective layers and at least one first cavity provided between the plurality of first Bragg reflective layers, and a first multi-layer provided on the first bandpass filter, the first multi-layer having a center wavelength different than the first center wavelength of the first Bragg reflective layers in order to block light of a wavelength band other than the first wavelength band.

Abstract: The lighting management system includes: a judgement unit configured to judge whether or not a lighting state around a vehicle based on a first lighting apparatus and a second lighting apparatus meets a first reference for a light amount and a second reference for at least one of a lighting range, a lighting color, and a flashing state; a first control unit configured to control the light amount of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the first reference; and a second control unit configured to control at least one of the lighting range, the lighting color, and the flashing state of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the second reference.

Abstract: The present disclosure provides an imaging optical system. In one aspect, the imaging optical system includes, among other things, a segmented light redirecting element configured to redirect the at least two portions of said electromagnetic radiation into substantially different directions and a segmented light separating element configured to substantially separate electromagnetic radiation into at least two portions.

Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.

Abstract: Apparatus and methods for analyzing single molecule and performing nucleic acid sequencing. An apparatus can include an assay chip that includes multiple pixels with sample wells configured to receive a sample, which, when excited, emits emission energy; at least one element for directing the emission energy in a particular direction; and a light path along which the emission energy travels from the sample well toward a sensor. The apparatus also includes an instrument that interfaces with the assay chip. The instrument includes an excitation light source for exciting the sample in each sample well; a plurality of sensors corresponding the sample wells. Each sensor may detect emission energy from a sample in a respective sample well. The instrument includes at least one optical element that directs the emission energy from each sample well towards a respective sensor of the plurality of sensors.

Abstract: The present invention relates to a filter substrate for filtering and optically characterizing microparticles. The filter substrate comprises a wafer having a thickness of at least 100 pm and a transmittance of at least 10% for radiation in the wavelength range of 2500 nm to 15000 nm. Furthermore, the surface of the front side and/or the surface of the rear side of the wafer is completely or partially provided with an antireflective layer, which prevents the optical reflection of radiation in the wavelength range of 200 nm to 10000 nm. Moreover, the wafer has, at least in some regions, filter holes having a diameter of 1 pm to 5 mm. With the filter substrate according to the invention, microparticles can be filtered and the microparticles on the filter substrate can be subsequently optically characterized with very high measurement quality.

Abstract: A spectrometer is provided. In one implementation, for example, a spectrometer comprises an excitation source, a focusing lens, a movable mirror, and an actuator assembly. The focusing lens is adapted to focus an incident beam from the excitation source. The actuator assembly is adapted to control the movable mirror to move a focused incident beam across a surface of the sample.

Abstract: Probe systems including imaging devices with objective lens isolators and related methods are disclosed herein. A probe system includes an enclosure with an enclosure volume for enclosing a substrate that includes one or more devices under test (DUTs), a testing assembly, and an imaging device. The imaging device includes an imaging device objective lens, an imaging device body, and an objective lens isolator. In examples, the probe system includes an electrical grounding assembly configured to restrict electromagnetic noise from entering the enclosure volume. In examples, methods of preparing the imaging device include assembling the imaging device such that the imaging device objective lens is at least partially electrically isolated from the imaging device body. In some examples, utilizing the probe system includes testing the one or more DUTs while restricting electrical noise from propagating from the imaging device to the substrate.

Abstract: A temperature detector is provided that is particularly suited towards the differential measurement of foot temperatures in diabetics. A radiation sensor views a surface area of the body and provides a radiation sensor output. Electronics coupled to the radiation sensor and an ambient temperature sensor compute a normalized surface temperature of the area normalized to a specified ambient temperature as a function of a sensed ambient temperature and a sensed radiation.

Abstract: A method is for determining the quality of an animal's semen. The method includes the steps of collecting at least one fresh or frozen semen sample, and measuring at least one absorption spectrum Xj of at least one sample of the semen. The sample is collected to a straw for artificial insemination with animal semen obtained by implementing the method. A computer and software are used for the implementation of the method.

Abstract: A laser ablation system, and method, facilitates the execution of user-defined scans (i.e., in which a laser beam is scanned across a sample along a beam trajectory to ablate or dissociate a portion of the sample) and enables the user define additional scans while a scan is being executed.

Abstract: A spectrophotometer having a light-receiving optical system that images light to be measured from a position for measurement and generates imaged light to be measured; a slit formation including a slit that causes the imaged light to be measured to pass and that generates light to be measured, which travels along a measurement optical path; a grating that diffracts the light to be measured, which travels along the measurement optical path, and generates diffracted light; a sensor that receives the diffracted light and outputs a signal representing a spectral spectrum; and an observation light source that is disposed on an optical path of zeroth light among the diffracted light and that emits observation light toward the grating at a time of observing the position for measurement.

Abstract: An optical system 10 includes a front group 11, a light shielding member 4, and a rear group 12 disposed in order from a side of an object to a side of an image. The light shielding member 4 has an opening. The rear group 12 has a diffraction surface 5 and an aspherical surface 6. The aspherical surface 6 in a first section has a non-circular-arc shape. The grating spacing of the diffraction surface 5 in the first section changes from a center portion toward a peripheral portion to include an extremum value at the center portion. In the first section, the shape of at least one of a base surface of the diffraction surface 5 and an optical surface disposed closer than the diffraction surface 5 to the side of the object is asymmetric with respect to a normal line at a vertex thereof.

Abstract: A LIBS analysis system comprises a focusing lens arrangement having a focal plane; a laser for propagating a laser beam through the focusing lens arrangement to be focused at the focal plane; a detector for generating an output that is proportional to an intensity of incident electromagnetic radiation that is incident on the detector; a translation mechanism configured to cause a relative movement of the sample holder and the focusing lens arrangement to vary a position of the focal plane along the optical path with respect to the sample holder; and a controller configured to automatically control the translation mechanism to cause the relative movement of the sample holder and the focusing lens arrangement to achieve an optimum position at which the focal plane and an analysis region of the upper surface intersecting the optical path are at or are close to coincidence.

Abstract: A standoff chemical detection system that includes a source and detector are provided. The source includes: a controller, memory communicatively connected to the controller, optical sources each constructed to operate over different wavelength ranges, and a power supply. The controller controls the plurality of optical sources to emit respective infrared beams towards a target detection area in a sequential order. The detector includes: an image sensor and a controller that is communicatively connected to the image sensor. Memory and the notification device are also communicatively connected to the controller. The image sensor receives attenuated infrared beams emitted by the optical sources sequentially and at least partially attenuated by chemicals in the target detection area. The controller is constructed to calculate stimulus value signals from the recorded image data and determine whether a hazard chemical is located within the target detection area based on the calculated stimulus value signals.

Abstract: An optical process sensor for measuring at least one measured variable of a medium in a container includes: a housing; a light source in the housing for emitting transmission light; a light detector in the housing for receiving reception light; and an interface including a first mechanical section, which is an integrated part of the housing, and a first optical section having a first path and a first light guide, wherein the first light guide is configured such that transmission light is guided from the light source into the first path via the first light guide and decouples transmission light from the housing, and having a second path and a second light guide, wherein the second light guide is configured such that reception light is coupled into the interior of the housing and guided from the second path to the light detector via the second light guide.

Abstract: A system of optical sensors determines whether an object is placed on the system by passing light through the sensor layer, detecting light reflected from the object above the sensor layer, and identifying the object based on whether a color detected in the light corresponds to a color of the side of the object that is positioned on the system over the sensor layer. When the system includes multiple optical sensor units, the system may determine where the object has been placed by determining which of the sensor units detect light reflected from the side of the object.

Abstract: A system including a processor and a memory configured to store code executed by the processor is provided. In one or more implementations, the processor is configured by the code to calibrate measurements made by color measurement devices. In one particular implementation, the processor receives a measurement dataset of one or more color values, for a sample obtained by a color measurement device. The processor is configured to convert the measurement dataset to a standard space measurement dataset using a standard space measurement model and calculate a color dataset based on the standard space measurement dataset using a color conversion model. The processor is further configured to output the calculated color dataset to at least one of a display, database or local memory store.

Abstract: A wastewater sampling system including: an inlet tube; an outlet port; a high-flow circuit fluidly coupling the inlet tube to the outlet port; a first pump, along the high-flow circuit, configured to pump wastewater through the high flow circuit; a sampling circuit, fluidly coupled to the high-flow circuit via a junction, comprising a solid waste filter fluidly coupled to the junction and a solid-phase extraction cartridge fluidly coupled to an outlet of the solid waste filter; a second pump along the sampling circuit; a controller configured to, during a sampling cycle at a first time, activate the first pump; at a second time, activate the second pump; and at a third time succeeding the second time by a sampling duration, deactivate the second pump.

Abstract: A digital measuring device implemented on a photonic integrated circuit, the digital measuring device including a laser source configured to provide light, a first ring resonator configured to produce a first frequency comb of light from the laser source, wherein at least a portion of the first frequency comb of light is directed at a moving object, a local oscillator configured to provide a reference beam, at least one waveguide structure configured to combine the reference beam with light reflected from the moving object to produce a measurement beam, a first multiplexer configured to split the measurement beam into a plurality of channels spaced in frequency, and a plurality of detectors configured to detect an intensity value of each channel of the plurality of channels to measure a distance between the digital measuring device and the moving object.

Abstract: An optical system for a hyperspectral camera and a hyperspectral camera comprising such an optical system are disclosed. The optical system comprises fore optics (1000), an image sensor (1800), a slit (1500), relay optics (1200), a first optical element (2000) positioned before the slit (1500), where the first optical element (2000) is defocusing light in a direction parallel to the slit (1500) while keeping focus in a direction perpendicular to the slit (1500); and a second optical element (2100) positioned after the slit (1500), where the second optical element (2100) is compensating the defocus of the depicted scene introduced by the first element (2000).

Abstract: An optical filter, a spectrometer including the optical filter, and an electronic apparatus including the optical filter are disclosed. The optical filter includes a first reflector including a plurality of first structures that are periodically two-dimensionally arranged, each of the first structures having a ring shape, and a second reflector spaced apart from the first reflector and including a plurality of second structures that are periodically two-dimensionally arranged.

Abstract: A frequency-measurement method uses a dual frequency-comb spectrometer as an optical wavemeter to measure the frequency of a reference laser that is used to frequency-stabilize the spectrometer. The method includes measuring a walking rate of center bursts in a sequence of interferograms recorded by the spectrometer, determining a number of teeth in each of a plurality of Nyquist windows formed by the dual frequency-comb spectrometer, and determining a Nyquist number of the one Nyquist window covering the laser frequency. The reference laser frequency can then be determined from the number of teeth in each Nyquist window, the Nyquist number, and the comb spacing of either one of the two frequency combs of the dual frequency-comb spectrometer. The reference laser frequency does not need to be measured with a separate wavemeter, or calibrated with respect to a known atomic or molecular transition.

Abstract: Disclosed are methods and systems for spectral imaging of soybean samples to accurately and non-destructively measure the amount of sucrosyl-oligosaccharide in the soybean samples. Populations containing modified and unmodified soybean seeds and having varying amounts of sucrosyl-oligosaccharides, oil or protein can be sorted and separated and further used in soybean processing or breeding.

Abstract: A dual-comb spectrometer comprising two lasers outputting respective frequency combs having a frequency offset between their intermode beat frequencies. One laser acts as a master and the other as a follower. Although the master laser is driven nominally with a DC drive signal, the current on its drive input line nevertheless oscillates with an AC component that follows the beating of the intermode comb lines lasing in the driven master laser. This effect is exploited by tapping off this AC component and mixing it with a reference frequency to provide the required frequency offset, the mixed signal then being supplied to the follower laser as the AC component of its drive signal. The respective frequency combs in the optical domain are thus phase-locked relative to each other in one degree of freedom, so that the electrical signals obtained by multi-heterodyning the two optical signals are frequency stabilized.

Abstract: An aspect of the invention provides a method for determining at least one internal quality attribute of an article (102) of agricultural produce.

Abstract: An identification apparatus includes a plurality of irradiation units disposed at different positions in a conveyance width direction to irradiate a specimen with a converging ray in different irradiation conditions, the specimen being conveyed in a predetermined conveyance direction by a conveyance unit, a plurality of light-capturing units configured to capture scattered light from the specimen, each of the plurality of light-capturing units corresponding to a different one of the plurality of irradiation units, an acquisition unit configured to acquire identification information for identifying a property of the specimen, based on the light captured by the light-capturing units; and a placement unit configured to place the specimen on a position corresponding to any one of the plurality of irradiation units in accordance with a characteristic value of the specimen at an upstream side of the plurality of irradiation units in the conveyance direction.

Abstract: An assembly for collimating broadband radiation, the assembly including: a convex refractive singlet lens having a first spherical surface for coupling the broadband radiation into the lens and a second spherical surface for coupling the broadband radiation out of the lens, wherein the first and second spherical surfaces have a common center; and a mount for holding the convex refractive singlet lens at a plurality of contact points having a centroid coinciding with the common center.

Abstract: A protection device for an Optical Emission Spectrometer (OES) and a method of protecting a detector to which purge gas is supplied, in an OES, are disclosed. The protection device comprises a timer, which measures a parameter, such as a humidity value, indicative of a shut down time period following cessation of application of purge gas to the detector. The protection device comprises a processor, which determines a start-up time period, based on the parameter, during which purge gas is supplied to the detector prior to cooling of the detector. The processor may selectively trigger commencing or maintaining application of purge gas to the detector or cooling of the detector in dependence on the parameter.

Abstract: A tool including a dispersive spectrometer deployable within a wellbore is provided. The dispersive spectrometer includes a waveguide layer to detect electromagnetic radiation according to wavelength. The dispersive spectrometer also includes a plurality of detector elements disposed along the waveguide layer to detect electromagnetic radiation associated with a portion of the wavelength of the electromagnetic radiation. A method for using the tool in a subterranean application is also provided.

Abstract: A device for dispensing a medicament and/or dietary supplement to a user comprises a housing; a sample inlet unit; a sample analysis unit; a data processing unit; and a dispensing assembly including a cartridge holder and a dispensing mechanism comprising means for dispensing a metered dose of said medicament or dietary supplement. The device may be used in a method for the customised provision of medicaments and/or dietary supplements to a user.

Abstract: A system for measuring the spatial distribution of the spectral emission of a measurement zone of an object, comprises: a first objective; means for selecting a portion of an image formed by the first objective; a diaphragm; light-dispersing means located in the vicinity of the diaphragm and allowing the light coming from the selecting means to be dispersed; and a second objective placed between the selecting means and the diaphragm, interacting with the first objective so that the aperture of the diaphragm is optically conjugated with the measurement zone by the first and second objectives. The first objective forms an image on a predetermined Fourier surface on which each point corresponds to an emission direction of the object for one particular wavelength. The selecting means have a selection surface shaped depending on the predetermined. Fourier surface, and the selecting means are placed on the predetermined Fourier surface.

Abstract: A method is provided which includes injecting a fluid into a wellbore; measuring, by a surface pressure sensor, a surface pressure; and measuring, by a downhole pressure sensor, a downhole pressure. A controller determines a true friction pressure based on a pressure differential between the surface pressure and the downhole pressure. A concentration of one or more components in the fluid is adjusted based on the true friction pressure to lower a total friction pressure loss.

Abstract: An image generation apparatus includes: a spectroscopic filter switching a wavelength of transmitted image light depending on a change in distance between a pair of reflective films; an imaging element imaging the image light transmitted through the spectroscopic filter; and one or more processors, which switches the wavelength of the transmitted light to a plurality of wavelengths in forward scanning to narrow the distance between the reflective films and backward scanning to widen the distance between the reflective films, switches the wavelength of the transmitted light to wavelengths of red, green, and blue colors in the forward scanning and the backward scanning, synthesizing a color image by synthesizing spectroscopic images of the red, green, and blue colors obtained in the forward scanning performed once, and generating a color image by synthesizing spectroscopic images of the red, green, and blue colors obtained in the backward scanning performed once.

Abstract: Disclosed herein is an all-digital phase and timing correction procedure for coherent averaging in dual-comb and multiheterodyne spectroscopy—applicable to any dual-comb spectroscopy setup. It can account for large frequency/phase instabilities of the used sources, yielding a significant reduction of the noise pedestal and an increase in signal-to-noise ratio (SNR) of the radio frequency (RF) beat notes. This technique is computationally efficient and can be conveniently implemented either as a post-processing algorithm or in a real-time data acquisition and processing platform without the necessity of adding any additional optical elements to the dual-comb spectroscopy system. By implementing this technique, the performance of any comb- or comb-like-source-based DCS system with a sufficient degree of mutual coherence between the optical modes can be improved in terms of SNR and number of spectroscopically-usable RF beat notes.

Abstract: An image processing apparatus includes an acquisition unit that acquires a hologram obtained by imaging a plurality of granules contained within an imaging visual field, a generation unit that generates, from the hologram, phase difference images at positions different from each other in an optical axis direction in a case in which the hologram is captured, a specifying unit that specifies a plurality of image ranges in a direction of a plane intersecting the optical axis direction, which correspond to the plurality of granules, in an averaged image obtained by averaging at least some of the phase difference images, and an extraction unit that extracts the phase difference image at a center position of a corresponding granule in the optical axis direction for each of the plurality of image ranges.

Abstract: A method and system for providing a companion autonomous vehicle are described. In one embodiment, a method includes linking a companion autonomous vehicle to at least one vehicle, device, or user. The companion autonomous vehicle is tethered to the at least one vehicle, device, or user such that the companion autonomous vehicle is configured to stay within a predetermined range of the at least one vehicle, device, or user. The method further includes operating the companion autonomous vehicle to travel along with the tethered at least one vehicle, device, or user within the predetermined range.

Abstract: Systems for detecting a presence of a microbolometer are provided. The systems may also discriminate a type of the microbolometer. The systems may comprise analog filtering and processing or digital filtering and processing. In some examples, both analog and digital filtering may be used. For example, a system may comprises a photodiode, an analog to digital converter (ADC) having a frequency sampling rate of at least two times an expected frequency range of known microbolometers and a processor. The ADC may receive an amplified output from the photodiode and produce a sampled sequence using the frequency sampling rate. The processor converts the sampled sequence into a frequency profile, examines the frequency profile to identity at least a fundamental frequency and determines whether a microbolometer is detected in a line of sight of the photodiode based on the fundamental frequency.

Abstract: An electronic apparatus includes a selection unit configured to select any one of a plurality of parameters generated in advance, and an analysis unit configured to receive light reflected from food to be analyzed and perform an analysis of spectral data by using the parameter selected by the selection unit, the spectral data indicating spectral intensities of a plurality of spectral components, wherein the selection unit is configured to select any one of the plurality of parameters based on at least any one of a type of the food to be analyzed, a demanded accuracy of the analysis, and processing to be performed after the analysis.

Abstract: An aspect of the invention provides a method for determining at least one internal quality attribute of an article (102) of agricultural produce.