207 results about "Integrating sphere" patented technology

The invention discloses a device and a method for testing a MicroLED wafer array. The device comprises a wafer slide holder, a MicroLED test device and a photometric integrating sphere, a MicroLED wafer is arranged on the wafer slide holder; the MicroLED wafer is provided with a MicroLED wafer array, and the MicroLED wafer array is provided with a plurality of The MicroLED wafer array is composed of a plurality of MicroLEDs which are distributed in an array form; the MicroLED test equipment comprises a flexible electrode and a TFT (Thin Film Transistor) addressing circuit; the wafer slide holder is used for enabling a MicroLED wafer to be aligned with the MicroLED test equipment so as to enable the MicroLED to be lightened, and visible light emitted after the MicroLED is lightened is transmitted to the photometric integrating sphere through the MicroLED test equipment; the photometric integrating sphere is used for testing optical parameters of the MicroLED; the optical parameters comprise optical power and wavelength; and the TFT addressing circuit is used for providing current, voltage and position parameters of the MicroLED. According to the device and the method, the optical parameters and the position of each MicroLED in the MicroLED wafer array can be rapidly tested in a lossless and high-throughput manner.

A lidar system for simultaneously measuring the column concentration of methane and the profile concentration of water vapor in the atmosphere is disclosed. The device includes a laser emission module: a 1645nm monoline seed laser, a 1645nm offline1 seed laser, a 1645nm offline2 seed laser, a 1064nm pump laser, a laser frequency-locking module, an optical parametric oscillator, a frequency doubling module, and emitting optical components; an echo receiving module: an integrating sphere module, an optical receiving telescope assembly, a beam splitter, filter assembly 1, filter assembly 2, photodetector 1, and photodetector 2; and a data acquisition and processing module. This invention utilizes the frequency doubling relationship between the absorption lines of methane and water vapor to simplify the complex structure of a dual-band, multi-wavelength laser. It employs seed-injected optical parametric oscillator technology to obtain a high-frequency stable 1645nm fundamental frequency light, which is then frequency-doubled to obtain an 822nm laser. The profile concentration of water vapor and the column concentration of methane in the atmosphere can be measured using differential absorption lidar (DIAL) and integral path differential absorption (IPDA) technologies, respectively.

The embodiment of the present application provides a kind of based on the method and system for detecting the quality of dairy product of spectral analysis, belong to optical detection technical field.The method comprises: the sample of the dairy product to be detected is introduced into thermostatic colorimetric cell, utilizes modulated light source to emit incident light, while collecting original spectrum signal in sample channel and reference channel;Based on original spectrum signal, generate correction spectrum, and input correction spectrum into integrating sphere to collect full direction transmission light, obtain total transmission spectrum;Based on the scattering distribution data of different angles obtained by arranging annular multi-angle detector array on the outer wall of thermostatic colorimetric cell;Based on scattering distribution data and total transmission spectrum, construct scattering compensation factor, and make scattering compensation factor act on total transmission spectrum to obtain effective absorption spectrum;Effective absorption spectrum is input into component decomposition model, and the content of each target component of the dairy product to be detected is output.The present application scheme realizes the rapid, nondestructive and high-precision detection of the content of key components of dairy product.

The embodiment of the invention provides a dairy product quality detection method and system based on spectral analysis, and belongs to the technical field of optical detection. The method comprises the following steps: introducing a dairy product sample to be detected into a constant-temperature colorimetric pool, emitting incident light by utilizing a modulated light source, and simultaneously collecting original spectral signals in a sample channel and a reference channel; generating a correction spectrum based on the original spectrum signal, and inputting the correction spectrum into an integrating sphere to collect omni-directional transmission light to obtain a total transmission spectrum; scattering distribution data at different angles are obtained based on an annular multi-angle detector array arranged on the outer wall of the constant-temperature colorimetric pool; constructing a scattering compensation factor based on the scattering distribution data and the total transmission spectrum, and acting the scattering compensation factor on the total transmission spectrum to obtain an effective absorption spectrum; and inputting the effective absorption spectrum into a composition calculation model, and outputting the content of each target component of the dairy product to be detected. According to the scheme, rapid, lossless and high-precision detection of the key component content of the dairy product is realized.

The utility model relates to the technical field of integrating spheres, in particular to an adjustable optical integrating sphere which comprises an opening and closing assembly, front and back translation screw rod sliding tables are symmetrically mounted at the top of the opening and closing assembly, lifting assemblies are mounted at the tops of the front and back translation screw rod sliding tables, an integrating sphere is arranged between the two lifting assemblies, and a supporting assembly is mounted at the bottom of the opening and closing assembly. The lifting assembly comprises a lifting frame, a lifting lead screw is vertically installed on the inner side of the lifting frame, a lifting sliding block is installed on the lifting lead screw, the integrating sphere is composed of two hemispheres, and the two hemispheres are fixedly connected with the lifting sliding block on the outer side. According to the adjustable optical integrating sphere, through the design of the lifting assembly, the height of the integrating sphere can be flexibly adjusted according to actual requirements. The lifting motor drives the lifting lead screw to rotate and drives the lifting sliding block to move up and down. The design greatly improves the adaptability of the integrating sphere in different measurement scenes. The arrangement of the front-back translation lead screw sliding table enables the integrating sphere to move front and back in the horizontal direction.

The invention discloses a light source system capable of continuously adjusting an attenuation ratio, and belongs to the technical field of optical radiation measurement and photoelectric detection. In order to solve the problems of wavelength dependence, discontinuous adjustment, spectrum distortion and the like existing in an existing light intensity adjusting scheme, a combined structure of an integrating sphere and a diaphragm cylinder is adopted, and the device comprises a light source, the integrating sphere with the high-reflection inner wall, a front-end adjustable diaphragm, the diaphragm cylinder with the extinction inner wall and a rear-end adjustable diaphragm. Continuous attenuation of output light intensity in a predetermined dynamic range is realized by adjusting the apertures of the front and rear diaphragms, the lower limit of attenuation ratio meets the requirement, and the dynamic range can reach more than three orders of magnitude. The system uses the integrating sphere to form a stable Lambert light source, the attenuation process depends on geometric parameters, spectral distribution and spatial uniformity basically remain unchanged, and the non-uniformity of a light-emitting surface is not greater than 5%. The invention further provides a calibration method, high-precision attenuation prediction is achieved through detector measurement and view factor model fitting, and the calibration method is suitable for weak cursor calibration, detector linearity testing and other applications.

The application discloses a kind of physical defect detection devices and methods of spectacle optical lens. Including collimating light source, two-dimensional light point scanning system, power compensation optical system and integrating sphere arranged in sequence on light path, photovoltaic sensor on the reflecting surface of integrating sphere, data processing board connected with photovoltaic sensor, overflow port for light beam passing is opened on integrating sphere.The application solves the comprehensive detection technical problem of detecting the defects such as bubble, scratch and pitting of the lens with optical power, and establishes the industry standard accordingly.The application is simple in structure, low in cost and high in sensitivity, and the 100% detection rate makes the operator only need to recheck the lenses that are misdetected as defects due to removable dirt on the surface.Usually, these lenses that need to be rechecked are about 3%.Thus, the application greatly reduces the intensity of workers and improves the efficiency, and also avoids unnecessary waste.

The application provides a multi-channel imaging optical eccentricity correction method applied to a multi-channel camera, and the optical eccentricity correction method comprises the following steps: real-time shooting of the inside of an integrating sphere by the multi-channel camera; adjusting the position of each lens relative to the lens chip to make the brightness of the four corners of the video display page of the multi-channel camera consistent; simultaneously shooting an infinite faraway same point light source by N lenses of the multi-channel camera, so that the video display page of the multi-channel camera simultaneously displays N shooting pictures, and the point light source is displayed on each shooting picture; and taking the image plane position of the point light source in one of the shooting pictures as a reference, adjusting the image plane positions of the point light sources in other shooting pictures to be the same as the reference. The multi-channel imaging optical eccentricity correction method can reduce the relative eccentricity degree of the lens and the chip, improve the common field of view of the multi-channel camera, and improve the shooting efficiency.

The application discloses an online full-wavelength detection system for continuous vacuum coating, a transfer unit is used for conveying a coated sample to a next vacuum coating unit, the transfer unit can convey the coated sample to a specified position of a detection module, and light emitted by a light source module enters a light collecting mechanism after passing through the coated sample. The application can satisfy online full-wavelength detection of continuous coating, can detect optical performance changes after coating in real time, and then adjust optical coating parameters to achieve ideal optical coating effect. The method can greatly improve the yield of multilayer continuous coating. Meanwhile, the second window of the light collecting mechanism and the first window of the light source module are arranged to be inclined at a specified angle, so that reflected light on the upper surface and the lower surface of the coated sample can be effectively prevented from entering the integrating sphere, background interference is effectively reduced, sensitivity is improved, and the optical differences of the coated sample after coating of each layer can be effectively found, so that parameter guidance for the next layer of coating is provided.

The invention provides a CD-ROM integrated light-emitting device detection device and a detection method thereof.The CD-ROM integrated light-emitting device comprises a carrier plate, an LED chip, a driving chip and a plurality of pins, the detection device comprises a workbench, a visual mechanism, a probe mechanism and an integrating sphere, the workbench comprises a transparent bearing plate, and when the CD-ROM integrated light-emitting device is borne on the transparent bearing plate, the LED chip is driven by the probe mechanism to rotate; the LED chip is positioned on one side, close to the transparent bearing plate, of the carrier plate; the visual mechanism is arranged above the transparent bearing plate and is used for acquiring image information; the probe mechanism is used for electrically connecting a probe with a pin in the CD-ROM integrated light-emitting device according to the image information so as to carry out an electrical test on the CD-ROM integrated light-emitting device; the integrating sphere is arranged below the transparent bearing plate and used for receiving emergent light of the LED chip so as to carry out optical testing on the CD-ROM integrated light-emitting device, and the detection equipment and the detection method of the CD-ROM integrated light-emitting device have the advantage of being high in photoelectric testing efficiency.

The invention discloses a human face skin multi-component concentration analysis method and device based on hyperspectral imaging, and relates to the technical field of spectral imaging. The method comprises the following steps: under a standardized condition, sequentially collecting dark background data, standard integrating sphere uniform light field data and standard reflectivity plate reference spectrum data; collecting original face hyperspectral data under the same condition; correcting the original face data and the reference data based on the dark background data and the uniformity correction coefficient, and calculating the reflectivity data of the face skin in combination with the known reflectivity of the standard reflectivity board; establishing correlation between the reflectivity and a tissue absorption coefficient based on a skin optical model, wherein the absorption coefficient is expressed as linear superposition of various target component concentrations and standard spectral characteristics thereof; and solving the relationship by adopting a fitting optimization algorithm to obtain the pixel-level concentration of each component and generate a two-dimensional distribution diagram. By optimizing an acquisition device, a spectral analysis algorithm and a visualization function, high-precision, safe and easy-to-use detection effects are realized.

The application provides a material surface diffuse reflectivity measuring method and device, and belongs to the technical field of material reflectivity testing.The device comprises an integrating sphere, an integrating sphere inner wall coating backfill module, a measured material backfill module, a light trap and a luxmeter.The integrating sphere comprises a light inlet and another opening.Illumination light is incident from the light inlet of the integrating sphere.The light receiving areas of the integrating sphere inner wall coating backfill module, the measured material backfill module and the light trap are matched with the other opening.The luxmeter is arranged on the inner wall of the integrating sphere, and the position of the luxmeter is away from the positions of the light inlet and the other opening.The material surface diffuse reflectivity is measured by using the integrating sphere, the light trap and other tools through a direct measurement method, without the aid of a standard reflector plate which needs to be calibrated in advance for diffuse reflectivity.Meanwhile, parameters such as the diffuse reflectivity of the inner wall of the integrating sphere and the brightness value of the illumination light source do not need to be measured.

The invention discloses an arc light online monitoring device for an energy storage power distribution switch cabinet, and belongs to the technical field of arc fault monitoring. Comprising a monitoring unit and a collecting unit, a quartz window short horn mouth captures 2pi spherical degree arc light at a time, and a closed plastic optical fiber sends a pulse into an integrating sphere within 50 microseconds; a black body extinction cylinder-narrow band filter-integrating sphere multi-stage attenuation is carried out, strong light is weakened firstly, then an ultraviolet characteristic spectrum is extracted, flash of a background lamp and a camera is completely eliminated, arc light position offset still keeps stable output, and high signal-to-noise ratio identification is realized; a real arc is judged according to the ratio of pure arc light to total light, and interference is avoided; after confirmation, a level in direct proportion to energy is output immediately, a background acts according to a three-level strategy of prompting, tripping and quick breaking, no optical cable is exposed in the whole process, the whole process is not influenced by dust condensate water, a closed loop from arcing to protection decision is completed within 2 ms, and real-time, reliable and maintenance-free arc light online monitoring is provided for an energy storage power distribution switch cabinet.

The utility model discloses a transmission / reflection spectrum detection light path structure, which relates to the field of spectrum detection, and comprises an integrating sphere fixedly arranged on the left upper side in a shell; the object carrying cover is arranged on the top surface of the shell, and the object carrying cover is arranged right above the integrating sphere in a covering manner; the left side of the cuvette bracket is fixed at an outlet in the right side of the integrating sphere; the buckling cover is mounted on the top surface of the shell, and the buckling cover is positioned right above the cuvette bracket; the first heat dissipation cover is mounted on the right side of the cuvette bracket; the second heat dissipation cover is mounted at a left interface of the lower end of the integrating sphere; the spectrograph is fixedly mounted in the shell, and the spectrograph is connected with a right interface at the lower end of the integrating sphere through an optical fiber. According to the utility model, transmission and reflection spectrum detection can be simultaneously carried out, the reliability and stability of object detection can be effectively ensured, and the accuracy of a detection result is ensured.

The application provides a kind of portable collection device of insulating paper near-infrared diffuse reflectance spectroscopy, belongs to the technical field of spectrum collection, including main casing, cylindrical surface accessory, built-in cavity handle and first optical fiber channel;One end of handle is communicated with the bottom of the rear end of main casing;Two ends of first optical fiber channel are communicated with the bottom of the front end of main casing and the other end of handle respectively;The front center of main casing is provided with main light outlet;There is integrating sphere and halogen lamp light source in main casing;One light outlet of integrating sphere is communicated with main light outlet, and the other light outlet is connected with external spectrometer through first optical fiber arranged along first optical fiber channel;Light inlet and halogen lamp light source are connected through collimating mirror and second optical fiber;Groove is opened in one end face of cylindrical surface accessory, and the other end is cylindrical face;Cylindrical surface accessory is provided with light channel communicated with main light outlet along axis direction.The light outlet of the collection device can be switched to cylindrical face, and perfect fit with the outer surface of insulating paper on site is realized.

The embodiment of the application provides a kind of based on integrating sphere light source's photosensitive diode multispectral calibration device and method, for by dark current measurement, photocurrent correction and wavelength response fitting, photosensitive diode array is carried out wide band multispectral calibration.The device of the application includes integrating sphere device, multi-band adjustable light source module, the photosensitive diode array to be calibrated and control and analysis unit;The inner wall of integrating sphere device is high reflectivity diffuse reflection material;Integrating sphere device further includes trap detector, and trap detector is used for real-time monitoring the reflection loss of the inner wall of integrating sphere device;Trap detector is connected with control and analysis unit communication;Multi-band adjustable light source module is accessed integrating sphere device;The photosensitive diode array to be calibrated is composed of multiple photosensitive diodes;Control and analysis unit and multi-band adjustable light source module, the photosensitive diode array to be calibrated establish communication connection.

This invention relates to the field of aerosol monitoring technology, specifically to an aerosol classification and identification system based on graded filtration and multi-optical parameter detection. The system includes an automatic membrane-changing graded filtration device, a sampling gas path switching device, an optical detection module, and a data processing and control device. The automatic membrane-changing graded filtration device loads multiple nucleopore membranes of different pore sizes and automatically switches them sequentially to achieve stepwise particle size separation of aerosol samples. The optical detection module integrates a cavity ring-down spectroscopy unit and an integrating sphere scattering measurement unit sharing a single laser light source, simultaneously measuring the extinction coefficient and scattering coefficient of the same graded sample. The data processing and control device constructs a matching feature vector based on the current filter membrane pore size and the calculated absorption coefficient, single-scattering albedo, and other optical parameters, compares it with an optical fingerprint database, and outputs the particle type identification result. This invention solves the technical problem of effectively distinguishing mixed aerosol components through dual-dimensional synergistic analysis of particle size and optical parameters, achieving accurate identification of aerosol particle types.

The utility model relates to a device for testing the imaging performance of a fluorescent endoscope, which comprises a mounting frame, and a clamp assembly, a container placing disc and an integrating sphere which are sequentially distributed on the mounting frame from top to bottom, and a lighting device arranged on one side of the integrating sphere, and exciting light of the lighting device illuminates the container placing disc through the integrating sphere. The container placing disc is provided with observation holes which are distributed in a circumferential mode, the clamp assembly comprises a double-screw clamp used for fixing the fluorescent endoscope and an adjusting frame used for adjusting the irradiation angle of the fluorescent endoscope, and the main purpose of the utility model is to enable a light source in the container placing disc to be more uniform through the reflection effect of an integrating sphere; according to the fluorescent endoscope, the sensitivity and definition of the fluorescent endoscope are improved, three important indexes including the radiance response characteristic, the fluorescent signal-to-noise ratio and the fluorescent static image latitude of the fluorescent endoscope are analyzed through real-time data of a fluorescent image collected by the fluorescent endoscope, and important parameters are provided for judging the imaging performance of the fluorescent endoscope.

This invention relates to a temperature control method and device for a laser detection system based on pulse waveform feature feedback. The laser detection system includes a laser, an integrating sphere, and a laser detector arranged sequentially. The laser detector is equipped with a cooling system for cooling the laser detector. The laser, integrating sphere, laser detector, and cooling system are each connected to a control terminal. The method is applied to the control terminal and includes: acquiring the pulse waveform characteristics and a first real-time temperature of the laser detector; determining whether the cooling system meets the temperature adjustment conditions based on the pulse waveform characteristics; querying the target adjustment temperature corresponding to the current signal deviation from a database based on the current signal deviation; determining a comprehensive error based on the target adjustment temperature, the first real-time temperature, and the target temperature of the laser detector; inputting the comprehensive error into a PID algorithm to obtain control commands for the cooling system. Timely and accurate temperature control of the laser detection system is achieved based on pulse waveform feature feedback.

The utility model discloses optical detection equipment, which comprises an air floating platform and a measuring case, the measuring case comprises a measuring case upper part and a measuring case lower part, the measuring case upper part is arranged above the air floating platform, the measuring case lower part is arranged below the air floating platform, and the measuring case upper part is arranged above the air floating platform. A first light emitting mechanism and an integrating sphere are arranged in the upper part of the measuring case, a second light emitting mechanism and a spectrograph are arranged in the lower part of the measuring case, light emitted by the first light emitting mechanism and the second light emitting mechanism enters the integrating sphere, and the integrating sphere is connected with the spectrograph through an optical fiber. The utility model provides optical detection equipment which can be used for quickly measuring optical properties such as reflection spectrum, transmission spectrum, visible light reflectivity, visible light transmittance, photovoltaic reflectivity, photovoltaic transmittance, color parameters, film thickness and the like of a sample. During measurement, the sample does not need to be overturned or moved, so that the detection efficiency of the sample is greatly improved.

The application discloses an integrating sphere device and application thereof, and belongs to the field of material photoluminescence property testing. The integrating sphere device comprises an integrating sphere body, an excitation light incidence module and an emission light emission module arranged along the light path direction. The integrating sphere body is composed of a shell, a hemispherical cavity and a quartz sample cover. The excitation light incidence module is composed of a light inlet hole, a first rotary motor and a first reflector. The emission light emission module comprises a light outlet hole I, a light outlet hole II, a second rotary motor, a driving gear, a driven gear, a push-pull motor, a second reflector and a polytetrafluoroethylene plate. The device can respectively carry out spectrum testing, luminescence quantum efficiency testing and luminescence imaging on a luminescence sample, and can greatly improve the material photoluminescence property testing efficiency. Meanwhile, the luminescence sample is blocked outside the integrating sphere by the quartz sample cover, and the hemispherical cavity does not need to be opened when the sample is replaced, so that the problem of integrating sphere pollution caused by repeated opening of the hemispherical cavity or careless sample loading is avoided.

The utility model discloses a lamp light radiation safety testing arrangement, including the support frame of integral sphere and bottom. Integral sphere contains fixed hemisphere and mobile hemisphere, and support frame is connected with moving track, and mobile hemisphere is moved along track through moving wheel and realizes opening and closing. The support frame bottom is equipped with the rotary frame, can drive integral sphere along the longitudinal axis rotation, and there is fixed clamp between rotary frame and support frame. The device is through integral sphere rotation, solves the problem that the probe adjustment needs to move because of the large integral sphere is blocked, and combines the design that opens and closes the hemisphere, and improves the operation convenience and test stability.

This invention discloses a test piece for evaluating the color quality of automotive ambient lighting, comprising: a housing, a light mixing component, and a light homogenizing component, the light mixing component and the light homogenizing component being fixed within the housing; the light mixing component includes a light inlet, a light mixing body, and a light outlet, the area of ​​the light inlet being smaller than the area of ​​the light outlet; the light homogenizing component contains an integrating sphere, and an end face opening is formed on the lower end face of the light homogenizing component, the end face opening communicating with the light outlet of the light mixing component; a side opening is formed on the side of the light homogenizing component, the side opening connecting to a fiber optic socket; the fiber optic socket is connected to external optical analysis equipment via optical fiber. The light mixing component can achieve total internal reflection of most incident light rays. The light emitted by the LED beads, after passing through the total internal reflection tetrahedral structure, is homogenized by the small integrating sphere cavity made of high diffuse reflectivity material, thus retaining most of the energy. Due to the small volume of the integrating sphere cavity, array testing can be performed on densely packed PCBA modules, accelerating the testing cycle, improving testing efficiency, and reducing manufacturing costs.

Provided are a reflective circular polarizer capable of suppressing a decrease in the contrast of a display image when used in a virtual reality display device or the like, a laminated optical film, and a virtual reality display device using the laminated optical film. This reflective circular polarizer includes a cholesteric liquid crystal layer and satisfies the relationship of formula (1).　Formula (1): I1+I2+I3+I4+I5 < 3.0 where I1 is a value obtained by doubling the transmittance of circularly polarized light in a turning direction opposite to circularly polarized light reflected by the reflective circular polarizer out of transmitted light when the reflected circularly polarized light is incident.　I2 is a value that is one-half of the reflectance of the circularly polarized light in the opposite turning direction out of reflected light reflected when the circularly polarized light reflected by the reflective circular polarizer is incident.　I3 is a value that is one-quarter of the reflectance of reflected light when the circularly polarized light in the opposite turning direction is incident on the reflective circular polarizer.　I4 represents the haze value of the reflective circular polarizer.　I5 represents the value of SCE / SCI×100 at a reflectance measured by an integrating sphere when unpolarized light is incident on the reflective circular polarizer.

This invention provides a multi-point transmittance detection device for screens, including a flexible island, belonging to the field of optical inspection. The device includes a transmittance detection mechanism, a lower suction transfer stage with an illumination port, an upper suction lifting temporary storage stage, and a transfer line. The lower suction transfer stage is driven to move along the transfer line, while the transmittance detection mechanism and the upper suction lifting temporary storage stage are located on one side of the transfer line. The transmittance detection mechanism uses an integrating sphere and a multi-angle adjustable incident light source to detect the transmittance of the screen's display area, the signal transmission area at the screen's edge, and the signal receiving area. The upper suction lifting temporary storage stage suctions the screen from the top surface for coarse and fine positioning and temporary storage. This application, through a lower suction pickup method, allows for closer proximity to the transmittance detection mechanism. The combination of coarse and fine positioning and temporary storage enables efficient and intelligent batch inspection, ensuring the image quality of the screen and facilitating its application in the imaging inspection of transparent components such as 3C products.

The invention relates to a machine difference control method and a standard optical system. The method comprises the following steps: carrying out flat field correction on a camera under different working distances; shooting an object to be detected under different flat field correction conditions, selecting a plurality of feature points and measuring to obtain corresponding first feature values; measuring feature points of the same picture and the same position of the to-be-detected object, determining measurement data, and selecting a working distance with the minimum deviation as an optimal calibration distance; selecting a first camera which is qualified in calibration as a reference template, shooting the high-uniformity optical integrating sphere and extracting second characteristic values of uniformly distributed point locations; and comparing the third feature value extracted by each camera with the second feature value, and determining that the corresponding camera is calibrated to be qualified under the condition that the maximum difference value in the third feature value and the second feature value conforms to a preset specification, otherwise, performing calibration again. The method can improve the calibration precision, and effectively controls the machine difference.

The application provides a kind of underwater radiation sensor equipment immersion factor fast measuring device and method, including the uniform light source assembly for providing the highly uniform distribution light field of light energy to the photosensitive surface of measured sensor, the dropper with scale and for absorbing specified volume liquid, the light extinction adapter ring that is set on the front end of measured sensor and makes the photosensitive surface of measured sensor in thin water layer under the action of the dropper and the computer for calculating the immersion factor of measured sensor according to the response value of measured sensor;The beneficial effects of the application are that: the primary homogenization integrating sphere and secondary homogenization integrating sphere in the uniform light source assembly can realize full-angle uniform light field, which can eliminate the error caused by correcting the change of refraction solid angle with water depth, and there is no need for accurate optical path tuning;The application can also quickly obtain accurate immersion factor value by directly comparing the radiation value of stable light source measured by measured sensor in fixed water depth and air.

The utility model relates to the technical field of LED detection, and specifically relates to an LED light bar detection device. Comprising an integrating sphere, an adjusting mechanism, a shading plate and a detection mechanism, the detection mechanism comprises a fixed seat, a sliding seat, a sliding plate, an upper clamping plate, a lower clamping plate, an adjusting plate, a pulling plate and a spectrum device, during detection, an LED light bar is fixed to the bottom of the sliding plate, then the sliding plate is vertically and slidably installed on the sliding seat, and the adjusting plate is matched with a sliding groove in the lowest point of the sliding plate; therefore, the LED element is opposite to the probe part of the spectrum device, then the light shielding plate is inserted in a sliding manner, the single detection hole in the light shielding plate singly corresponds to the LED element during working, and then optical testing can be carried out through the spectrum device, so that whether the single LED element on the LED light bar meets optical requirements or not is known; and the LED elements on the LED light bar do not need to be desoldered manually in advance before testing, so that detection after single desoldering of a plurality of LED elements is not needed when the LED light bar is detected, and waste of samples is reduced.

This application relates to the field of microscopic imaging radiation calibration technology, providing a photon flux standard source and a method for measuring photon flux responsivity. The photon flux standard source includes an integrating sphere light source and an aperture; the outer side of the integrating sphere light source outlet includes a first flat surface with a first area, and the side of the aperture near the integrating sphere light source has a second flat surface with a second area. The first flat surface and the second flat surface are parallel and have a planar gap. The integrating sphere light source outlet has an average brightness within a solid angle defined by the aperture; wherein the planar gap, the average brightness, the first area, and the second area are used to calculate the photon flux to determine the photon flux responsivity of the detector under test. This application can accurately determine the photon flux entering the microscopic imaging system, thus improving the accuracy of the photon flux responsivity of the microscopic imaging system calibrated based on the photon flux.

The present disclosure provides an integrating-sphere-assisted resonance synchronous (ISARS) spectroscopy method performed with an ISARS spectrophotometer, for example, a spectrofluorometer equipped with an integrating-sphere accessory. The methods and systems of the present disclosure utilize the ISARS spectrophotometer equipped with an integrating sphere to determine the ISARS spectral intensity, quantify the ISARS-based absorbance, and subsequently evaluate the sample's double-beam UV-vis absorbance spectrum (also known as the absorption extinction spectrum). This ISARS method enables quantitative separation of light absorption and scattering contribution to the sample UV-vis extinction spectrum measured with double-beam UV-vis spectrophotometer.