CN207066720U - A kind of LED illumination product stroboscopic effect test system - Google Patents
A kind of LED illumination product stroboscopic effect test system Download PDFInfo
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- CN207066720U CN207066720U CN201720970941.7U CN201720970941U CN207066720U CN 207066720 U CN207066720 U CN 207066720U CN 201720970941 U CN201720970941 U CN 201720970941U CN 207066720 U CN207066720 U CN 207066720U
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- China
- Prior art keywords
- led illumination
- illumination product
- test system
- stroboscopic effect
- effect test
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Abstract
The utility model discloses a kind of LED illumination product stroboscopic effect test system, including Sampling Integral ball, the photometric detector being connected with Sampling Integral ball, the main control part that is connected with photometric detector；An accommodation space is provided with Sampling Integral ball, is provided with accommodation space to fix the mounting bracket of tested LED illumination product, is connected in mounting bracket provided with power line with the power supply in the external world；Main control section includes I/V converters, signal amplifier, A/D converter, microprocessor and the digital display composition being sequentially connected.Using Sampling Integral ball, without darkroom, you can ensure to exclude the interference of other light sources in all test environments in test process, it is ensured that the data that photometric detector is gathered are accurate, improve the measurement accuracy of test system.
Description
Technical field
It the utility model is related to a kind of field of optical detection, more particularly to the stroboscopic of LED illumination product light output fluctuation
The system of effect test.
Background technology
The response speed of LED illumination is very fast, and the fluctuation of input current can reflect its light output within several nanoseconds
In fluctuation.This effect reaches certain degree, and observer will be made to change the visually-perceptible of environment, and this perceive becomes
Change is often undesired, even harmful；In addition, light output fluctuation is also possible to the decline for causing visual performance, draw
Play the visual fatigue even serious health problem such as epilepsy, antimigraine.The stroboscopic effect of LED illumination and driving current frequency, tune
Depth processed, dutycycle, target and the contrast of background and translational speed etc. are all closely related.Due to the photoresponse of LED illumination
Speed is very fast, and the influence of driven, light modulator etc., and output light fluctuating range and frequency difference are larger, accurately catch light
Output-time waveform is a challenge for measurement, also very high to the performance requirements of detecting instrument.It is conventional at present to survey
The method of amount illumination stroboscopic is mainly optical method, but this method response speed is slow, measurement process easily in by environment its
The interference of his light source, test result is not accurate enough, deviation easily occurs.Meanwhile measurement index is not comprehensive enough, can not meet current
The requirement of international and national relevant criterion.
The content of the invention
A kind of the shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided LED illumination product stroboscopic
Effect test system, the LED illumination product stroboscopic effect test system is according to international and Domestic Correlative Standard to LED illumination product
The test of stroboscopic effect and the requirement of relevant evaluation index, can accurately measure flicker percentage（PF）, scintillation index（FI）, light
Export periodic frequency（f）, modulation depth（MD）, stroboscopic effect visualisation parameters（SVM）Etc. the index of correlation of stroboscopic effect.
Technical scheme is used by the utility model solves its technical problem：A kind of LED illumination product stroboscopic effect is surveyed
Test system, including Sampling Integral ball, the photometric detector being connected with Sampling Integral ball, the main control part that is connected with photometric detector
Point；An accommodation space is provided with Sampling Integral ball, is provided with accommodation space to the installation branch of fixed tested LED illumination product
Frame, mounting bracket is interior to be connected provided with power line with the power supply in the external world；Main control section includes the I/V conversions being sequentially connected
Device, signal amplifier, A/D converter, microprocessor and digital display composition.
Sampling Integral ball, inside there is a sufficiently large accommodation space, can be by tested LED illumination product and external environment condition after closure
It is completely isolated；Tested LED illumination product, it is placed in Sampling Integral ball, is powered by external power supply；Photometric detection
Device, electric signal is changed into for gathering the illuminance signal of tested LED illumination product, and by the optical signal collected；Master control part
Point, the voltage signal of illuminance is obtained by I/V converters, it is then by signal amplification circuit that this signal is filtered and loud
Response compensation amplification, obtains the DC voltage corresponding with illuminance value, is changed again through A/D converter afterwards, obtains representing light
The digital quantity of illumination size, finally by the processing and computing of microprocessor, measurement parameter is shown on digital display
Show, the digitized processing to sampled data, computing and display are mainly completed in main control section.
Further, described photometric detector is for gathering the illuminance signal of tested LED illumination product and will adopt
The optical signal collected changes the photoelectric sensor of electric signal into, and photoelectric sensor is photodiode, quickly can be converted optical signal
For electric signal.
Further, described Sampling Integral ball for after closure can by tested LED illumination product and external environment condition completely every
From impermeable photo structure.It is light tight after Sampling Integral ball closure, it is ensured that to be excluded in test process in all test environments
The interference of other light sources；In addition, tested LED illumination product is positioned in the mounting bracket, it is removably.
Further, described Sampling Integral ball surface is provided with reserved opening, and one end of photoelectric sensor is light sensation part
Reserved opening is placed in, the other end is connected by cable with I/V converters.The design of this structure can be in test, sampling
Optical signal outside integrating sphere will not be loaded on photometric detector, it is ensured that test result is accurate.
Further, described signal amplifier uses CD4051 chips, the amplification of complete pair signals；A/D converter is adopted
With ADC0809 chips, the digital-to-analogue conversion to amplified signal is realized；Microprocessor uses STC89C51 chips, realizes to data
Analysis and processing；Digital display uses MJ12864G liquid crystal displays.
In summary, LED illumination product stroboscopic effect test system of the present utility model uses Sampling Integral ball, without dark
Room, you can ensure to exclude the interference of other light sources in all test environments in test process, it is ensured that photometric detector is adopted
The data of collection are accurate, improve the measurement accuracy of test system；According to newest standard requirement, flicker hundred as defined in standard can be provided
Divide ratio（PF）, scintillation index（FI）, light output periodic frequency（f）, modulation depth（MD）, stroboscopic effect visualisation parameters
（SVM）Etc. the index of correlation of stroboscopic effect.
Brief description of the drawings
Fig. 1 is a kind of structure connection frame of LED illumination product stroboscopic effect test system of the utility model embodiment 1
Figure；
Fig. 2 is the partial circuit diagram of main control section.
Embodiment
Embodiment 1
A kind of LED illumination product stroboscopic effect test system described by the present embodiment 1, as depicted in figs. 1 and 2, including
Sampling Integral ball 1, the photometric detector 2 being connected with Sampling Integral ball, the main control part 3 being connected with photometric detector；Sampling product
An accommodation space 4 is provided with bulb separation, is provided with accommodation space to the mounting bracket of fixed tested LED illumination product 10（In figure
Do not show）, mounting bracket is interior to be provided with power line（Do not shown in figure）It is connected with the power supply in the external world；Main control section include according to
I/V converters 5, signal amplifier 6, A/D converter 7, microprocessor 8 and the digital display 9 of secondary connection form.
Sampling Integral ball, inside there is a sufficiently large accommodation space, can be by tested LED illumination product and external environment condition after closure
It is completely isolated；Tested LED illumination product, it is placed in Sampling Integral ball, is powered by external power supply；Photometric detection
Device, electric signal is changed into for gathering the illuminance signal of tested LED illumination product, and by the optical signal collected；Master control part
Point, the voltage signal of illuminance is obtained by I/V converters, it is then by signal amplification circuit that this signal is filtered and loud
Response compensation amplification, obtains the DC voltage corresponding with illuminance value, is changed again through A/D converter afterwards, obtains representing light
The digital quantity of illumination size, finally by the processing and computing of microprocessor, measurement parameter is shown on digital display
Show, the digitized processing to sampled data, computing and display are mainly completed in main control section.
In the present embodiment, described photometric detector is for gathering the illuminance signal of tested LED illumination product simultaneously
The optical signal collected is changed to the photoelectric sensor of electric signal into, photoelectric sensor is photodiode, can be quickly by optical signal
It is converted into electric signal.
In the present embodiment, described Sampling Integral ball for closure after can be complete by tested LED illumination product and external environment condition
The impermeable photo structure isolated entirely.It is light tight after Sampling Integral ball closure, it is ensured that all test environments are excluded in test process
In other light sources interference；In addition, tested LED illumination product is positioned in the mounting bracket, it is removably.
In the present embodiment, described Sampling Integral ball surface is provided with reserved opening（Do not shown in figure）, photoelectric sensor
One end be placed in reserved opening for light sensation part, the other end is connected by cable with I/V converters.The design of this structure
Can be in test, the optical signal outside Sampling Integral ball will not be loaded on photometric detector, it is ensured that test result is accurate.
In the present embodiment, as shown in Fig. 2 described signal amplifier uses CD4051 chips, complete pair signals are put
Greatly；A/D converter uses ADC0809 chips, realizes the digital-to-analogue conversion to amplified signal；Microprocessor uses STC89C51 cores
Piece, realize analysis and processing to data；Digital display uses MJ12864G liquid crystal displays.
It is described above, only it is preferred embodiment of the present utility model, not structure of the present utility model is made any
Formal limitation.Every any simple modification made according to the technical essence of the utility model to above example, it is equal
Change and modification, in the range of still falling within the technical solution of the utility model.
Claims (5)
1. a kind of LED illumination product stroboscopic effect test system, it is characterised in that including Sampling Integral ball and Sampling Integral ball
The photometric detector of connection, the main control part being connected with photometric detector；An accommodation space is provided with Sampling Integral ball, houses sky
Interior to be provided with to the mounting bracket of fixed tested LED illumination product, mounting bracket is interior to be provided with power line and extraneous power supply electricity
Source is connected；Main control section includes I/V converters, signal amplifier, A/D converter, microprocessor and the numeral being sequentially connected
Display forms.
A kind of 2. LED illumination product stroboscopic effect test system according to claim 1, it is characterised in that described light
It is for gathering the illuminance signal of tested LED illumination product and the optical signal collected being changed into the light of electric signal to spend detector
Electric transducer, photoelectric sensor are photodiode.
3. a kind of LED illumination product stroboscopic effect test system according to claim 2, it is characterised in that described takes
Sample integrating sphere is can be by tested LED illumination product and the completely isolated impermeable photo structure of external environment condition after closing.
4. a kind of LED illumination product stroboscopic effect test system according to claim 3, it is characterised in that described takes
Sample integration ball surface is provided with reserved opening, and one end of photoelectric sensor is placed in reserved opening for light sensation part, and the other end leads to
Cable is crossed with I/V converters to be connected.
A kind of 5. LED illumination product stroboscopic effect test system according to claim 4, it is characterised in that described letter
Number amplifier uses CD4051 chips, and A/D converter uses ADC0809 chips, and microprocessor uses STC89C51 chips, numeral
Display uses MJ12864G liquid crystal displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720970941.7U CN207066720U (en) | 2017-08-05 | 2017-08-05 | A kind of LED illumination product stroboscopic effect test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720970941.7U CN207066720U (en) | 2017-08-05 | 2017-08-05 | A kind of LED illumination product stroboscopic effect test system |
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| Publication Number | Publication Date |
|---|---|
| CN207066720U true CN207066720U (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720970941.7U Expired - Fee Related CN207066720U (en) | 2017-08-05 | 2017-08-05 | A kind of LED illumination product stroboscopic effect test system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540479A (en) * | 2019-01-25 | 2019-03-29 | 欧普照明股份有限公司 | A kind of detection circuit, a kind of detection device of light source stroboscopic, method and optoelectronic detecting device |
| WO2020151465A1 (en) * | 2019-01-25 | 2020-07-30 | 欧普照明股份有限公司 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
| CN112129492A (en) * | 2020-09-08 | 2020-12-25 | 广州广电计量检测股份有限公司 | Calibration method and calibration system of simple light source stroboscopic tester based on light-emitting diode |
| CN112197939A (en) * | 2020-09-08 | 2021-01-08 | 广州广电计量检测股份有限公司 | Calibration method and calibration system of light source stroboscopic tester based on optical chopping method |
| CN116165506A (en) * | 2023-03-03 | 2023-05-26 | 江苏语诣光电科技有限公司 | LED automobile lamp detection device and detection method |
-
2017
- 2017-08-05 CN CN201720970941.7U patent/CN207066720U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540479A (en) * | 2019-01-25 | 2019-03-29 | 欧普照明股份有限公司 | A kind of detection circuit, a kind of detection device of light source stroboscopic, method and optoelectronic detecting device |
| WO2020151465A1 (en) * | 2019-01-25 | 2020-07-30 | 欧普照明股份有限公司 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
| US11910100B2 (en) | 2019-01-25 | 2024-02-20 | Opple Lighting Co., Ltd. | Detection circuit, device and method for detecting light source flicker, and photoelectric detection device |
| CN112129492A (en) * | 2020-09-08 | 2020-12-25 | 广州广电计量检测股份有限公司 | Calibration method and calibration system of simple light source stroboscopic tester based on light-emitting diode |
| CN112197939A (en) * | 2020-09-08 | 2021-01-08 | 广州广电计量检测股份有限公司 | Calibration method and calibration system of light source stroboscopic tester based on optical chopping method |
| CN116165506A (en) * | 2023-03-03 | 2023-05-26 | 江苏语诣光电科技有限公司 | LED automobile lamp detection device and detection method |
| CN116165506B (en) * | 2023-03-03 | 2023-09-19 | 江苏语诣光电科技有限公司 | LED automobile lamp detection device and detection method |
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