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35 results about "Photometric system" patented technology
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In astronomy, a photometric system is a set of well-defined passbands (or filters), with a known sensitivity to incident radiation. The sensitivity usually depends on the optical system, detectors and filters used. For each photometric system a set of primary standard stars is provided.
Image pick-up apparatus with a multi-area AF function
InactiveUS20070160359A1Television system detailsProjector focusing arrangementZone SystemImage formation
In an image forming apparatus, the auto-focusing process and the photometry system may be coupled such that when a multi-area AF system is set, the setting of the auto-focusing areas of the multi-area AF system is performed in accordance with a selected photometry system. More specifically, when an average metering system is selected as the photometry system, nine AF areas are set such that the AF areas are distributed throughout the whole image. When a center-weighted metering system is selected as the photometry system, four AF areas are set in the vicinity of the middle of the image. When a spot metering system is selected as the photometry system, one AF area is set in the vicinity of the middle of the image.
Owner:CASIO COMPUTER CO LTD
Stray light testing method and system for optical system to be inspected
The invention relates to a stray light testing method and system for optical system to be tested. The method comprises the following steps of: 1) obtaining irradiance of image surfaces of the optical system to be tested in different field angles; 2) replacing the optical system to be tested by using an attenuation slice and obtaining the irradiance of the attenuation slice; 3) according to the irradiance obtained in the step 2 of the attenuation slice, obtaining the irradiance at an entrance pupil of the optical system to be tested; and 4) according to the step 1 and the step 3, obtaining the point source transmittance of the optical system to be tested. The stray light testing method and system for optical system to be tested provided by the invention can conduct objective evaluation to the stray light suppression level of the tested optical system and can avoid uncertainty in evaluation by adopting a stray light coefficient at present.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
System, Method and Computer Program Product For Photometric System Design and Environmental Ruggedization
ActiveUS20150355459A1Analogue computers for electric apparatusCharacter and pattern recognitionEnvironmental remediationGlobal optimization
A photometric system design methodology employs genetic algorithms to optimize the selection of optical elements for inclusion in the photometric system in order to improve system performance with respect to environmental conditions (i.e., to “ruggedize” the photometric system). The genetic algorithms utilize a multi-objective fitness function to evolve simulated optical element selection, which may be a combination of optical filters and integrated computational elements. The system may also output a size reduced database that serve as simulated candidate optical elements through global optimization, or may output a fixed number of simulated optical elements through conditional optimization for actual tool implementation and calibration analysis
Owner:HALLIBURTON ENERGY SERVICES INC
Light measuring system, applicable light measuring method thereof and smart phone
ActiveCN104333750AAccurate exposureImprove communication efficiencyTelevision system detailsColor television detailsLuminosityOptoelectronics
The invention discloses a light measuring system which is arranged in a smart phone. The light measuring system comprises an ambient light sensor and a processing module. The ambient light sensor which comprises a lens and a photoelectric sensor acquires ambient light and outputs ambient light information, wherein the lens is a spheroid scatterer. The input end of the processing module is in circuit connection with the ambient light sensor, and the processing module receives acquired light information output by the ambient light sensor and obtains corresponding photographic parameters according to the acquired light information and outputs photographic parameters. The light measuring system is arranged in the smart phone, the light intensity of the ambient can be measured at any time. Photographic parameters such as apertures, shutters and photo-sensibility are obtained through calculation and can be transmitted to the other mobile terminal through the wireless technology, the photographic parameters are displayed to a photographer through a mobile terminal, and the photographer sets corresponding parameters of a camera according to the transmitted information and obtains accurate exposure of pictures.
Owner:湖州丰源农业装备制造有限公司
Silicon slice edge exposure system and its light intensity control method
ActiveCN101221370AIncrease light intensityKeep constantPhotomechanical exposure apparatusMicrolithography exposure apparatusData controlRotary stage
The invention provides a silicon wafer edge exposing system and a light intensity control method thereof, wherein the system comprises a rotatable silicon wafer bearing stage, an exposing light source and optical fiber, an imaging lens, a control computer and a light intensity control device; the method comprises the following steps that: through setting the position of a light sieve, the light intensity control device can calibrate exposing light intensity; the constant output of light intensity is controlled through the internal light intensity closed-loop feedback of the light source; through detecting the position of the light sieve, whether calibration is needed once more is judged; an exposing light source switch and the rotation time of a silicon wafer rotary stage are controlled through the calibrated data of light intensity. Adopting the system and the method can realize ladder-type constant output of light intensity, thereby making full use of the intensity of a mercury lamp light source and ensuring the constant output of light intensity within a certain time; meanwhile, the invention increases the efficiency and reliability of silicon wafer edge exposing process; in addition, the invention obtains the effect that a plurality of sets of silicon wafer edge exposing systems uses a set of photometric system; moreover, the invention further provides a simplified light intensity control device, thereby saving equipment cost.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
Ultrafast time-resolved transient reflectance spectrometer
The embodiments of the present invention provide an ultrafast time-resolved transient reflectance spectrometer. The ultrafast time-resolved transient reflectance spectrometer comprises a femtosecond laser source, a beam splitter, a pumping light system, a probe laser system, a photodetector and a computer. The beam splitter divides the femtosecond pulsed laser into first pulsed laser and second pulsed laser, the first pulsed laser is transmitted to the pumping light system, the second pulsed laser is transmitted to the probe laser system, the pumping light system is used for receiving the first pulsed laser, carrying out frequency multiplication processing on the first pulsed laser to obtain half-wavelength pumping light and focusing the half-wavelength pumping light to the sample surface,and the probe laser system is used for delaying processing on the second pulsed laser to obtain full-wavelength probe laser and focusing the full-wavelength probe laser to the sample after the half-wavelength pumping light is focused to the sample surface. The ultrafast time-resolved transient reflectance spectrometer can measure the relative change rate of the bulk surface transient reflectivitythrough a dual-wavelength pumping-detection method.
Owner:BEIJING UNIV OF TECH
High-stability optical microscope
Owner:JAPAN SCI & TECH CORP
Three-dimensional photovoltaic energy battery sunlight automatic tracking system
InactiveCN103472856AReduce lossIncrease power generationPhotovoltaic supportsSolar heating energyElectricityMotor drive
The invention discloses a three-dimensional photovoltaic energy battery sunlight automatic tracking system. The automatic tracking system comprises a CPU control circuit, a servo drive circuit and a photometric system, wherein the CPU control circuit, the servo drive circuit and the photometric system are sequentially electrically connected. The photometric system is installed on a solar energy light panel and outputs X-axis pulse signals, Y-axis pulse signals and Z-axis pulse signals to the CPU control circuit, and the CPU control circuit controls a first motor in the servo drive circuit to operate through first pulse signals, first working state control signals and first direction control signals. The CPU control circuit controls a second motor in the servo drive circuit to operate through second pulse signals, second working state control signals and second direction control signals. The first motor and the second motor drive the solar energy light panel to rotate, and the CPU control circuit initializes the first pulse signals, the first direction control signals, the second pulse signals and the second direction control signals through the Z-axis pulse signals. According to the system, using cost is reduced, and working efficiency is improved.
Owner:杜海花
Voltage frequency conversion circuit for photometric system
InactiveCN103471714AHigh precisionSimple structurePhotometry electrical circuitsCapacitanceElectrical resistance and conductance
The invention discloses a voltage frequency conversion circuit for a photometric system. The voltage frequency conversion circuit is characterized in that the comparison input pin of a converter is connected with a second resistor; a timing circuit pin of the converter is connected with a third resistor and a second capacitor respectively; the third resistor and the power end of the converter are connected with a 9V power supply through a first inductor, and the 9V power supply is further connected with a third capacitor; the frequency output pin of the converter is connected with a fourth resistor, the fourth resistor is connected with the base electrode of a second triode, the emitting electrode of the second triode is connected with a fifth resistor and a sixth resistor respectively, and the fifth resistor is connected to the ground; the collector electrode of the second triode is connected with a seventh resistor which is connected with the 9V power supply, the sixth resistor is connected with an eighth resistor and the base electrode of a first triode respectively, the emitting electrode of the first triode is connected to the ground, and the collector electrode of the first triode is connected with a ninth resistor and outputs pulse signals at the same time. According to the voltage frequency conversion circuit, sunlight conversion frequency is improved, accuracy is high, the circuit is simple in structure, and various requirements in practical application are met.
Owner:高彩云
Chemiluminescence immunoassay analyzer
The invention belongs to the technical field of detection equipment, and provides a chemiluminescence immunity analyzer which comprises a rack, a control system arranged on the rack, and a reaction cup feeding and conveying system, a uniform mixing system, an acquisition system, an incubation cleaning system and a photometric system which are arranged on the rack and are electrically connected with the control system respectively, the reaction cup feeding and conveying system is used for storing, feeding and carrying reaction cups, the collecting system is used for transferring samples in the sample tubes and reagents in the reagent tubes to a uniform mixing position and collecting information of the sample tubes and the reagent tubes, and the uniform mixing system is used for uniformly mixing substances in the reaction cups. The incubation and cleaning system is used for performing incubation, cleaning, substrate adding and uniform mixing on substances in the reaction cup, and the photometric system is used for performing optical detection on the substances in the reaction cup after the incubation, cleaning, substrate adding and uniform mixing operations. The chemiluminescence immunoassay analyzer provided by the invention is high in automation degree, and can prevent human factors from influencing the accuracy and reliability of detection as much as possible.
Owner:深圳市世鑫医疗科技有限公司
Integrated cleaning inspection vehicle for navigation assistance lamps
PendingCN110549254AQuick cleanAvoid damageColor measuring devicesLighting elementsIlluminanceControl system
The invention discloses an integrated cleaning inspection vehicle for navigation assistance lamps. The integrated cleaning inspection vehicle comprises a vehicle body chassis and a vehicle main control system, a travelling control system, a jet cleaning system and a metering system; the vehicle main control system is used for obtaining data information of the navigation assistance lamps, and for controlling operation of the travelling control system and the jet cleaning system; the metering system is used for detecting illumination and chroma information of the navigation assistance lamps; andthe vehicle main control system is used for judging whether cleanness of the navigation assistance lamps is qualified. According to the integrated cleaning inspection vehicle, by arranging the jet cleaning system, light outlets of the navigation assistance lamps can be cleaned fast, cleaning efficiency is high, consistency is good, damage to the lamps is small, illumination and chromaticity coordinates of the lamps can be detected in real time through the metering system, positions and appearance states of the lamps can be detected through a displacement detection system and a laser scanner,and fully-intelligentizing of all functions is realized, and manual operation is not needed.
Owner:北京爱德空港设备工程有限公司
Photometry method and system based on skin color recognition
ActiveCN103729624AEliminate the effects ofStrong targetingCharacter and pattern recognitionFace detectionPattern recognition
The invention relates to a photometry method and system based on skin color recognition. Face detection, skin detection and skin color probability counting are carried out on image data captured by a camera, and the skin color probability obtained by counting and the center point position of the highest skin block are compared with original system photometry center points so as to determine the final photometry center points. The photometry method and system are high in pertinence, can eliminate the influence of face non-focus areas such as backgrounds, the hair and the eyes, and make the photometry effect be more stable and natural.
Owner:深圳美图创新科技有限公司
Photoelectric signal amplification circuit for photometric system
InactiveCN103475318AHigh precisionImprove conversion efficiencyPhotometryAmplifiers controlled by lightAudio power amplifierLuminosity
The invention discloses a photoelectric signal amplification circuit for a photometric system. A non-inverting input end of a second input pin of an operational amplifier is connected with a first voltage feedback sampling resistor, an inverting input end of the second input pin of the operational amplifier is connected with a fourth resistor and a fifth resistor, a first output pin of the operational amplifier is connected with a second luminosity adjusting resistor, the second luminosity adjusting resistor is connected with the fourth resistor, the fifth resistor is connected with a second voltage feedback sampling resistor, the second voltage feedback sampling resistor is grounded, and a second output pin of the operational amplifier outputs secondarily amplified voltage signals. According to the photoelectric signal amplification circuit, sensed sunlight is converted into the voltage signals by the aid of a phototriode, the secondarily amplified voltage signals are outputted by the operational amplifier through subsequent processing of a voltage-dividing resistor, the luminosity adjusting resistor and the operational amplifier, and the requirement of a subsequent circuit is met. By the aid of the photoelectric signal amplification circuit, sunlight conversion efficiency is improved, precision is high, and various requirements of practical application are met.
Owner:刘亚男
Sunlight three-dimensional photometric system
InactiveCN103472857AReal-time trackingReduce lossControl using feedbackCells panelGenerating capacity
The invention discloses a sunlight three-dimensional photometric system. The photometric system comprises an X-axis photometric circuit, a Y-axis photometric circuit and a Z-axis photometric circuit. The X-axis photometric circuit and the Y-axis photometric circuit are respectively composed of a voltage generation circuit and a voltage frequency switching circuit. According to the sunlight three-dimensional photometric system, a three-dimensional light pulse is obtained through the voltage generation circuits, the voltage frequency switching circuits and the Z-axis photometric circuit, real-time tracking for the sun is achieved, use and installation are convenient, the operational process is simplified, and the working efficiency is improved. When the sunlight three-dimensional photometric system is applied in a solar automatic tracking system, unnecessary electric energy loss caused by driving a solar cell panel can be saved, on the basis of a test, the total generating capacity of a photovoltaic cell panel can be improved to 10%, and the cost of the photovoltaic cell panel is only 30% of a GPS.
Owner:TIANJIN CHANGYUE ELECTRONICS SCI & TECH
System and method for recording dynamic change of laser ablated matter at nanosecond time resolution
InactiveCN107655422AAccurate recordAids in studying the impact of fractionation effectsUsing optical meansShock waveNanosecond
The invention discloses a system and a method for recording the dynamic change of a laser ablated matter at nanosecond time resolution. A pulse delay controller controls the time when a pump laser system emits laser pulse and the time when a probe light system emits probe light in order to achieve a time delay between the two kinds of pulse light. The probe light emitted by the probe light systemfalls on the surface of a target sample, and a shadow formed after the probe light is transmitted through a laser ablated matter is imaged in a camera of an online monitoring device. The camera can accurately record the instantaneous morphology of shock wave, plasma and eruptive materials. The system and the method can be used to study the dynamic change law of aerosol particles formed from laserablated particles in the air or under inert carrier gas, and can help to study the influence of the number, diameter and morphology of ablated particles on the effect of geochemical element fractionation.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Image pick-up apparatus with a multi-area AF function
InactiveUS7783190B2Television system detailsProjector focusing arrangementImage formationComputer science
Owner:CASIO COMPUTER CO LTD
Photometric system
The invention provides a photometric system. The photometric system comprises a laser ranging module, an illumination measuring module and a data processing module; the laser ranging module is used for measuring the distance between a light source and the system and transmitting the generated distance data to the data processing module; the illumination measuring module is used for measuring the illumination of light generated by the light source and transmitted to the system and transmitting the generated illumination data to the data processing module; the data processing module is used for calculating the received distance data and illumination data to obtain the illumination intensity data of the position of the system. The laser ranging module and the illumination measuring module measure the distance and illumination synchronously, so that the illumination data and the distance data can be obtained at the same time and at the same place to the maximum, the accuracy rate for measuring data and the working efficiency can be improved, and the inconvenience of switching the devices manually is avoided while a photometer and a diastimeter are sequentially adopted for measuring.
Owner:BEIJING HUIRONG GUANGCE TECH
Mobile phone power-saving method
InactiveCN101026821ARealize power savingCurrent supply arrangementsSubstation equipmentElectricityComputer science
The method includes steps: using automatic photometric system of camera integrated in handset to obtain environment image data, and calculate out brightness of environment; then, comparing environment brightness with preset brightness; if environment brightness is higher than preset brightness, then starting up electricity saving mode of handset; if environment brightness is lower than preset brightness, then closing down electricity saving mode of handset. Using software to control starting up and closing down electricity saving mode of handset automatically, the invention realizes electricity saving for handset without need of adding hardware on handset.
Owner:YINGHUADA (SHANGHAI) ELECTRONIC CO LTD
Method for controlling the gain and zero of a multi-pixel photon counter device, and light-measuring system implementing said method
ActiveUS9797772B2X-ray spectral distribution measurementPhotometry electrical circuitsAmplitude histogramPeak value
A method for controlling the gain and zero of a multiple pixel photon counter device, and light-measuring system implementing said method.Signals provided by the device are acquired for predefined periods, until a predefined total measurement time is reached, an amplitude histogram is formed from the acquired signals, the positions of two consecutive peaks, measurable on the histogram, are determined, an error signal is produced, which is equal to the deviation between both peaks and, by means of the same, the voltage supplying the device is regulated, so as to keep the deviation equal to a predefined set point.
Owner:ORANO RECYCLAGE
Novel automatic dimmer for automobile headlamp
InactiveCN103192760AIn line with optoelectronic engineeringGive full play to social benefitsOptical signallingElectrical resistance and conductanceLight sensing
The invention relates to driving safety of an automobile at night and development and comprehensive utilization of maintenance projects. According to the principles of photoelectric engineering science, a photometric system circuit and a light-sensing transducer circuit, a certain resistance is generated when lamp light incomes on an illuminated face of a photoresistor at night, so that the headlamp on full beam is taken as an initial state at the constant pressure and current and other well-adjusted circuit parameters, and a dipped headlamp is adjusted to when a car on the opposite side comes. The sensitivity of the light-sensing transducer regulates the bias voltage, and the required potential for conduction is just increased, so that change time for passing light and distant light is provided to automatically change the headlamp on full beam and the dipped headlamp, so as to guarantee safety driving at night.
Owner:尚玉东
Method of constructing light-measuring look-up table, light-measuring method, and light-measuring system
ActiveUS20120044496A1Improve accuracyHigh precision measurementRadiation pyrometryColor measuring devicesPattern recognitionFrequency spectrum
The invention discloses a method of constructing light-measuring look-up table, a light-measuring method, and a light-measuring system. The method of constructing light-measuring look-up table is to construct a look-up table by according to spectrum parameters relative to a light spectrum model, three actual color-matching functions relative to the light-measuring system and three standard color-matching functions, calculating both a look-up color coordinate and a reference color coordinate corresponding to each of the spectrum parameters. The light-measuring method includes: first, measuring a to-be-measured light by the light-measuring system to obtain actual stimulus values and calculating an actual color coordinate; then, comparing the actual color coordinate with the look-up color coordinates to determine both a to-be-measured light spectrum parameter and an estimated color coordinate relative to the to-be-measured light; furthermore, according to the to-be-measured light spectrum parameter, one of the standard color-matching functions and one of the actual stimulus values, calculating an estimated luminance.
Owner:CHROMA ATE
Silicon slice edge exposure system and its light intensity control method
ActiveCN101221370BIncrease light intensityKeep constantPhotomechanical exposure apparatusMicrolithography exposure apparatusRotary stageData control
The invention provides a silicon wafer edge exposing system and a light intensity control method thereof, wherein the system comprises a rotatable silicon wafer bearing stage, an exposing light sourceand optical fiber, an imaging lens, a control computer and a light intensity control device; the method comprises the following steps that: through setting the position of a light sieve, the light intensity control device can calibrate exposing light intensity; the constant output of light intensity is controlled through the internal light intensity closed-loop feedback of the light source; through detecting the position of the light sieve, whether calibration is needed once more is judged; an exposing light source switch and the rotation time of a silicon wafer rotary stage are controlled through the calibrated data of light intensity. Adopting the system and the method can realize ladder-type constant output of light intensity, thereby making full use of the intensity of a mercury lamplight source and ensuring the constant output of light intensity within a certain time; meanwhile, the invention increases the efficiency and reliability of silicon wafer edge exposing process; in addition, the invention obtains the effect that a plurality of sets of silicon wafer edge exposing systems uses a set of photometric system; moreover, the invention further provides a simplified light intensity control device, thereby saving equipment cost.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
A 3D Photovoltaic Cell Sunlight Automatic Tracking System
InactiveCN103472856BReduce lossIncrease power generationPhotovoltaic supportsSolar heating energySolar lightControl signal
Owner:杜海花
Automatic cleaning device for blind
ActiveCN110652246AAvoid the problem of low cleaning efficiencyHigh precisionMeasurement devicesWindow cleanersIlluminanceDrive motor
The invention discloses an automatic cleaning device for a blind. The automatic cleaning device includes: a signal acquisition module, a communication module and an execution mechanism, wherein the signal acquisition module includes an ultrasonic temperature measuring system, a photosensitive diode photometric system, a humidity sensor and a slave device; the execution mechanism includes a mater device, a display screen and a driving motor; the ultrasonic temperature measuring system is used for measuring indoor temperature; the photosensitive diode photometric system is used for measuring indoor illuminance; the humidity sensor is used for measuring indoor humidity; the slave device sends measured data acquired by the signal acquisition module to the master device of the execution mechanism via the communication module, and the master device controls, according to the measured data, the driving motor to execute corresponding operations; the measured data includes the indoor temperature, the indoor illuminance and the indoor humidity; and the corresponding operations include: opening and closing the blind, adjusting blade angles and cleaning the blind. The automatic cleaning deviceprovided by the invention can be utilized to clean the blind automatically.
Owner:BEIHUA UNIV
Spatial photometry system calibration device and method based on beam line characteristics
ActiveCN113077517BImprove calibration efficiencyHigh precisionImage analysisComplex mathematical operationsTarget surfaceLight beam
Owner:湖南科天健光电技术有限公司
Method of constructing light-measuring look-up table, light-measuring method, and light-measuring system
ActiveUS8599380B2Improve accuracyLuminance can be obtainedRadiation pyrometryColor measuring devicesPattern recognitionFrequency spectrum
The invention discloses a method of constructing light-measuring look-up table, a light-measuring method, and a light-measuring system. The method of constructing light-measuring look-up table is to construct a look-up table by according to spectrum parameters relative to a light spectrum model, three actual color-matching functions relative to the light-measuring system and three standard color-matching functions, calculating both a look-up color coordinate and a reference color coordinate corresponding to each of the spectrum parameters. The light-measuring method includes: first, measuring a to-be-measured light by the light-measuring system to obtain actual stimulus values and calculating an actual color coordinate; then, comparing the actual color coordinate with the look-up color coordinates to determine both a to-be-measured light spectrum parameter and an estimated color coordinate relative to the to-be-measured light; furthermore, according to the to-be-measured light spectrum parameter, one of the standard color-matching functions and one of the actual stimulus values, calculating an estimated luminance.
Owner:CHROMA ATE
Voltage frequency conversion circuit for photometric system
InactiveCN103471714BHigh precisionSimple structurePhotometry electrical circuitsCapacitanceElectrical resistance and conductance
Owner:高彩云
Incubator
InactiveUS20050089445A1Reduce manufacturing costSmall sizePreparing sample for investigationColor/spectral properties measurementsComputational physicsOptical density
An incubator includes a rotating incubator rotor. The incubator rotor is provided with a plurality of element chambers which are arranged along the outer periphery of the incubator rotor and each of which accommodates a dry analysis element spotted with a sample and incubates the dry analysis element. A light measuring system has a light measuring head which measures the optical density of the dry analysis element. The light measuring system is provided with a correction system which compensates for fluctuation in the value of the optical density of the dry analysis element in each of the element chambers as measured by the light measuring head generated due to fluctuation in the distance between the light measuring head and the element chamber on the basis of a correction value which has been stored in the correction system element chamber by element chamber.
Owner:FUJIFILM CORP
Software photometric system and method thereof
InactiveCN1721966AReduce volumeReduce manufacturing costPhotometryExposure controlPhotometric systemComputer science
The invention relates to a software photometric system and its method, which uses the gathered video pixel and assigns many differ pixels which are posted on special location of picture and analyzes them into red coloring matter, green coloring matter and blue coloring matter and uses the average brightness value as the code of system device executing supplementary light source.
Owner:MITAC COMP (SHUN DE) LTD +1
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