CN209085766U - A kind of Spectral radiance measurement device - Google Patents
A kind of Spectral radiance measurement device Download PDFInfo
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- CN209085766U CN209085766U CN201821915465.XU CN201821915465U CN209085766U CN 209085766 U CN209085766 U CN 209085766U CN 201821915465 U CN201821915465 U CN 201821915465U CN 209085766 U CN209085766 U CN 209085766U
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Abstract
The utility model discloses a kind of Spectral radiance measurement device, including casing, object lens are equipped in the casing, reflecting mirror with holes, it is characterized in that, the first optical measuring device is also set in casing, is received by the light of reflecting mirror aperture with holes by the first optical measuring device, and the first optical measurement is spectral measurement device；Beam splitter is equipped in the reflected light path of reflecting mirror with holes, light is divided into two bundles through beam splitter by the light beam that reflecting mirror with holes reflects, wherein light beam enters to realization test zone alignment in Barebone, another light beam is then received by the second optical measuring device and measures the variation of its light output, and light output delta data is transmitted to data processing unit and realizes tested light light period of change or frequency analysis, and then the spectrum integral time for setting the first optical measuring device completes spectral measurement as the integral multiple of light period of change, ensure the integrality of spectroscopic acquisition, improve measurement reproducibility, suitable for light source or show that the optical property of product is assessed.
Description
[technical field]
The utility model relates to optical radiation measurement fields, and in particular to a kind of Spectral radiance measurement device and method.
[background technique]
In illumination and display field, LED by many advantages such as respond fastly, wavelength enrich that adjustable, low energy consumption, environmental protection
Advantage is used widely in lighting area and display field.In the optical assessment of above-mentioned LED product, spoke luminance meter is to use
In the common detection device of the optical parameter measurements and evaluation such as light source and display product spectral radiance, brightness, coloration.Tradition
In luminance meter scheme, generally by beam splitter is arranged in the optical path after object lens, and then internal system will be entered by object lens
Incident ray be divided into two beams, a portion light is transferred to detector surface after the devices such as optical imagery and realizes measurement,
Another part light is then finally transmitted to the observation that eyepiece realizes tested region.However, in use spoke luminance meter equipment to tested light
In the actual measurement of source brightness or spoke brightness, it often will appear the inconsistent phenomenon of multiple measurement results, pole is unfavorable for tested light
Source or rational evaluation or the classification for showing product optical characteristics.
[summary of the invention]
In terms of leading to brightness or the inconsistent reason of spoke brightness multiple measurement results, in addition to being generally acknowledged that by measuring device
Error caused by optical element, machinery and electronic hardware etc. and fluctuation are outer, another major reason is then due to being tested LED
Lighting source shows that the response sensitivity of product is very high, its light output is caused easily to change with AC driven power,
And the difference of spectrum integral time and the imperfection of acquisition measured light signal easily cause multiple in spectral measurement
Measurement result is inconsistent.
Deficiency based on above-mentioned discovery and for existing equipment in terms of test, the utility model are directed to a kind of new
The Spectral radiance measurement device of grain husk not only improves the measurement weight of spectroradiometric quantity measuring device by the light path design of innovation
Renaturation, and for light source or show that the optical characteristics of product provides rationally accurate evaluation and contributes.
The Spectral radiance measurement device of the utility model is achieved through the following technical solutions: a kind of Spectral radiance measurement
Device, including casing, are equipped with object lens, reflecting mirror with holes in the casing, and the reflecting mirror with holes receives the light from object lens
Beam, which is characterized in that be additionally provided in casing:
First optical measuring device, the emergent light after reflecting mirror aperture with holes are received by the first optical measuring device,
And first optical measuring device is spectral detection device；
Beam splitter, the beam splitter are set in the reflected light path of reflecting mirror with holes；
For being tested the second optical measuring device of light light output real-time measurement and for pair of tested region position alignment
Barebone is divided into two bundles light through beam splitter via the light beam that reflecting mirror with holes reflects, and wherein light beam is filled by the second optical measurement
Reception is set, another light beam then enters to Barebone；
Data processing unit, first optical measuring device and the second optical measuring device are and data processing unit
Connection.
Reflecting mirror with holes is equivalent to field stop in utility model device, and the emergent light of measurand by object lens at
As to reflecting mirror with holes；And first optical measuring device for receiving and measure through the light after reflecting mirror aperture with holes, this
Locating the first optical measuring device is spectral measurement device, for realizing the spectral measurement of measurand test zone；In addition, our
Face is innovative to be divided in the reflected light path of reflecting mirror with holes provided with beam splitter, and by the light beam reflected via reflecting mirror with holes
At two beams, wherein light beam enters alignment device and is used for the alignment of measurand test zone, and another light beam then passes through second
Optical measuring device receives and measures the light output variation of measurand emergent light；Wherein the first optical measuring device and the second light
The measurement result for learning measuring device, which is transmitted in data processing unit, to be analyzed.It is emphasized that second light
Learn the optical output signal of measuring device by the analysis of data processing unit can get the optical output waveform of measurand, the period,
Frequency and various stroboscopic parameters, such as scintillation index, the measurement of flashing percentage, modulation depth, Pst, Mp and SVM.
The corresponding spectral radiance of utility model device in measurement process, survey in real time by second optical measuring device
The optical output signal of tested light is measured, and the optical output signal of tested light is transmitted to data processing unit, and passes through data processing list
Meta analysis obtains optical output waveform, period of change or the frequency of tested light；In turn, the spectrum product of the first optical measuring device is set
Between timesharing it is the integral multiple of tested light period of change, and completes the spectral measurement to tested light；Further, first optics
The spectroscopic data that measuring device measures is analyzed to obtain spectrum, luminosity and the colorimetric parameter of tested light by data processing unit.
The light output that above-mentioned Spectral radiance measurement device measures the second optical measuring device by data processing unit
Signal analyze and then obtains optical output waveform, period, frequency, and then the spectrum product for passing through the first optical measuring device of setting
Between timesharing it is the integral multiple in optical output waveform period, and then ensures the integrality of the first optical measuring device spectroscopy signal,
Overcome in the measurement of traditional brightness meter due to the spectrum integral time take be not suitable for causing repeatedly measuring and test result occur not
Consistent phenomenon improves the repeatability of measurement and the reasonability of measurand optical assessment.
Compared with traditional equipment, utility model device is high with measurement reproducibility, measurement is more acurrate, measurement parameter is more complete
The advantage in face is widely used in light source and shows the standard of the optical characteristics (spectrum, luminosity, coloration and stroboscopic performance) of product
Really measurement.
The repeatability for improving test assesses important in inhibiting for holding water for measurand optical characteristics.
The utility model can also further limit and perfect by the following technical programs:
As a kind of technical solution, second optical measuring device is photometric detector；The photometric detector
For acquiring the optical output signal of measurand real-time, quickly；Preferably, the second smooth optical measuring device is photoelectricity
Pond, photodiode or photomultiplier tube.
As a kind of technical solution, the beam splitter is semi-transparent semi-reflecting lens.
As a kind of technical solution, it is additionally provided with reflecting mirror between the reflecting mirror with holes and beam splitter, by reflection with holes
The light beam of mirror reflection reaches beam splitter after reflecting mirror reflects.It controls interest in generation and reflecting mirror is set between reflecting mirror and beam splitter
Purpose is that the light for the longitudinal size for equipment of abridging, i.e., after reflecting mirror with holes reflection realizes light by reflecting mirror reflection
It is entered in subsequent optical path after the turnover of road.
As a kind of technical solution, described is visual system to Barebone.Reality is directly observed by human eye in this programme
The alignment of existing measurand test zone；Visual system herein includes one or more lens, the use formed by beam splitter
The light beam reflected in the optical system for alignment of measurand test zone alignment by reflecting mirror with holes is saturating by one or more
By eye-observation after mirror.
As a kind of technical solution, described includes third detection device to Barebone, and third detection device is image
Detector；The alignment case of the image viewing measurand test zone measured in this programme by image detector.
Lens are equipped between spectroscope and third detection device as a preferred embodiment of the above solution, i.e., are formed by beam splitter
The light beam for the alignment of measurand test zone further pass through the test surface of lens imaging to the first detection device.
As a kind of technical solution, lens are additionally provided between reflecting mirror with holes and the first optical measuring device, by band
The light of hole reflecting mirror aperture is by Lens Coupling to the light input end of the first optical measuring device.In the present solution, the first optics is surveyed
The light input end for measuring device is entrance slit or optic fibre input end, i.e., by the light of reflecting mirror aperture with holes by Lens Coupling
Light to the entrance slit of the first optical measuring device, or process reflecting mirror aperture with holes is surveyed by Lens Coupling to the first optics
Measure the optic fibre input end of device.
As a kind of technical solution, changeable aperture diaphragm is additionally provided between reflecting mirror with holes and lens.This programme
Described in the setting of aperture diaphragm be to limit the light energy entered in the first optical measuring device；Due to high-brightness LED
Show the application of product or illuminating product, often brightness is excessively high in the measurements will lead to signal spilling, therefore, in reflection with holes
The setting for the aperture diaphragm that can be switched between mirror and lens can carry out aperture diaphragm switching according to the luminance level of measurand,
To obtain the optical signal of suitable size.
As a kind of technical solution, the reflecting mirror with holes include two and it is more than two have different sizes and/or
The changeable reflecting mirror with holes of different shape aperture.Reflecting mirror with holes is field stop in this programme, passes through two or more
The setting that reflecting mirror with holes can be switched, the adjusting for different test object measured zone sizes.
It further include the driving motor for driving reflecting mirror and/or aperture diaphragm switching with holes as a kind of technical solution.We
In case, the reflecting mirror and aperture diaphragm with holes are realized by driving motor to automatically switch.
[Detailed description of the invention]
Attached drawing 1 is utility model device schematic diagram in embodiment 1；
Attached drawing 2 is reflecting mirror schematic diagram with holes in embodiment 1,2 and 3；
Attached drawing 3 is the connection schematic diagram of data processing unit in embodiment 1,2 and 3；
Attached drawing 4 is utility model device schematic diagram in embodiment 2；
Attached drawing 5 is the schematic diagram that aperture diaphragm can be switched in embodiment 2；
Attached drawing 6 is utility model device schematic diagram in embodiment 3；
1-object lens；2-reflecting mirrors with holes；3-the first optical measuring device；3-1-entrance slit；3-2-optical fiber；4—
Beam splitter；5-the second optical measuring device；6-to Barebone；7-data processing units；8-reflecting mirrors；9-third optics
Measuring device；10-lens；11-aperture diaphragms；
[specific embodiment]
Embodiment 1
As shown in Figure 1, 2, 3, the present embodiment discloses a kind of Spectral radiance measurement device, is equipped in the optical path in casing
Object lens 1, reflecting mirror with holes 2, the first optical measuring device 3, the second optical measuring device 5 and to Barebone 6, wherein the first optics
Measuring device 3 is spectrometer, and the second optical measuring device 5 is the photometric detection that measurement is changed by side object emergent light light output
Device, and the first optical measuring device 3 and the second optical measuring device 5 are connect with data processing unit 7；Herein to Barebone 6
For visual system；The emergent light of measurand is entered inside optical system by object lens 1, and then is received by reflecting mirror 2 with holes；Its
In the entrance slit 3-1 of the first optical measuring device 3 is coupled to by lens 10 by the light of the aperture of reflecting mirror 2 with holes, and
Spectral measurement is realized inside into the first optical measuring device 3；In addition, also successively being set in the reflected light path of reflecting mirror 2 with holes
There are reflecting mirror 8, beam splitter 4, spectroscope 4 is semi-transparent semi-reflecting lens herein, by the reflected light of reflecting mirror 2 with holes after reflecting mirror 8
It is transmitted on the incidence surface of spectroscope 4, forms two-beam on the light-emitting surface of spectroscope 4, wherein by the saturating of semi-transparent semi-reflecting lens
Irradiating light beam further passes through after lens 10 by eye-observation to and the reflected beams for passing through semi-transparent semi-reflecting lens are then surveyed by the second optics
It measures device 5 and receives the light output variation for measuring tested light；In the present embodiment, the reflecting mirror with holes 2 is field stop, and this
Device includes that there are two various sizes of changeable reflecting mirrors with holes 2, and reflecting mirror with holes 2 is realized automatically by driving motor
Switching；
The present embodiment discloses a kind of Spectral radiance measurement method, and the tested light light that the second optical measuring device 5 measures is defeated
Delta data is transmitted to data processing unit 7 out, and the light by carrying out the tested light of analysis acquisition to light output delta data is defeated
Period of change and frequency out；Further, the spectrum integral time that the first optical measuring device 3 is arranged is that tested light light output becomes
Change the integral multiple in period, and completes spectral measurement；Further, it is transmitted by the spectroscopic data that the first optical measuring device 3 measures
Spectrogram, the radiancy parameter (such as spoke brightness), luminosity (such as brightness), colorimetric parameter of tested light are realized into data processing unit
Measurement analysis；In addition, point of the light output delta data measured by data processing unit 7 to the second optical measuring device 5
Analysis also can get the stroboscopic parameter of measurand.
Disclosed Spectral radiance measurement device and Spectral radiance measurement method through this embodiment, not only can be true
The Spectral radiance measurement dress protected in 3 spectral measurement of the first optical measuring device and acquire the integrality of signal, and be greatly improved
The measurement reproducibility set has great help for the rational evaluation of measurand optical property, in addition, the present embodiment device may be used also
Realize the stroboscopic measurement of measured light.
Embodiment 2
As shown in Fig. 2,3,4,5, the present embodiment discloses a kind of Spectral radiance measurement device, sets in the optical path in casing
There are an object lens 1, reflecting mirror with holes 2, the first optical measuring device 3, the second optical measuring device 5 and to Barebone 6, wherein the first light
Measuring device 3 is spectrometer, and the second optical measuring device 5 is the photometric detection that measurement is changed by side object emergent light light output
Device, and the first optical measuring device 3 and the second optical measuring device 5 are connect with data processing unit 7；Herein, to Barebone 6
It is made of lens 10 and third optical measuring device 9；
The emergent light of measurand is entered inside optical system by object lens 1, and then is received by reflecting mirror 2 with holes；Wherein
By the light of the aperture of reflecting mirror 2 with holes by being coupled to the first optical measurement by lens 10 after changeable aperture diaphragm 11
The light input end of the optical fiber 3-2 of device 3, and be transmitted to inside the first optical measuring device 3 by optical fiber 3-2 and realize that spectrum is surveyed
Amount；Aperture diaphragm 11 is by being arranged on same disk herein and four aperture diaphragms 11 with different pore size size are constituted, and
Switch aperture diaphragm 11 according to the luminance level of measurand, carry out the light energy that control enters in the first optical measuring device 3,
Place signal spilling or too low；In addition, reflecting mirror 8, beam splitter 4 are also successively arranged in the reflected light path of reflecting mirror 2 with holes, this
Punishment light microscopic 4 is semi-transparent semi-reflecting lens, is transmitted to the incidence surface of spectroscope 4 after reflecting mirror 8 by the reflected light of reflecting mirror 2 with holes
On, two-beam is formed on the light-emitting surface of spectroscope 4, wherein the transmitted light beam by semi-transparent semi-reflecting lens further passes through lens 10
Third optical measuring device 9 receives afterwards, and the reflected beams for passing through semi-transparent semi-reflecting lens are then received by the second optical measuring device 5 and surveyed
Measure the light output variation of tested light；In the present embodiment, third optical measuring device 9 is image measuring apparatus, and third optics is surveyed
The black region in image that amount device 9 measures is denoted as test zone, and the position alignment in nominative testing region is realized by adjusting；
The reflecting mirror with holes 2 is field stop, and the present apparatus includes that there are two various sizes of changeable reflecting mirrors with holes 2；
Reflecting mirror 2 with holes described in the present embodiment and aperture optical path 11, which pass through driving motor, to be realized and automatically switches；
The present embodiment discloses a kind of Spectral radiance measurement method, and the tested light light that the second optical measuring device 5 measures is defeated
Delta data is transmitted to data processing unit 7 out, and the light by carrying out the tested light of analysis acquisition to light output delta data is defeated
Period of change and frequency out；Further, the spectrum integral time that the first optical measuring device 3 is arranged is that tested light light output becomes
Change the integral multiple in period, and completes spectral measurement；Further, it is transmitted by the spectroscopic data that the first optical measuring device 3 measures
Spectrogram, the radiancy parameter (such as spoke brightness), luminosity (such as brightness), colorimetric parameter of tested light are realized into data processing unit
Measurement analysis；In addition, point of the light output delta data measured by data processing unit 7 to the second optical measuring device 5
Analysis also can get the stroboscopic parameter of measurand.
Embodiment 3
As shown in fig. 6, the present embodiment discloses a kind of Spectral radiance measurement device, exist with the unique difference of embodiment 2
In being additionally provided with lens 10 before beam splitter 4 and the second optical measuring device 5, the light reflected by beam splitter 10 is through lens
After 10 so by the second optical measuring device 5 receive measure, remaining setting and used Spectral radiance measurement method with
Embodiment 2 is identical.
It is emphasized that the above is only the preferred embodiment of the present utility model, not the utility model is appointed
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (9)
1. a kind of Spectral radiance measurement device, including casing are equipped with object lens (1) in the casing, reflecting mirror (2) with holes,
The reflecting mirror with holes (2) receives the light beam for coming from object lens (1), which is characterized in that is additionally provided in casing:
First optical measuring device (3), by the emergent light after reflecting mirror with holes (2) aperture by the first optical measuring device (3)
It receives, and first optical measuring device (3) is spectral detection device；
Beam splitter (4), the beam splitter (4) are set in the reflected light path of reflecting mirror with holes (2)；
For being tested the second optical measuring device (5) of light optical output signal real-time measurement and for tested region position alignment
To Barebone (6), it is divided into two bundles light through beam splitter (4) by the light beam that reflecting mirror with holes (2) are reflected, wherein light beam is by the second light
It learns measuring device (5) to receive, another light beam then enters to Barebone (6)；
Data processing unit (7), first optical measuring device (3) and the second optical measuring device (5) are and at data
Manage unit (7) connection.
2. Spectral radiance measurement device as described in claim 1, which is characterized in that in the reflecting mirror (2) with holes and divide
It is additionally provided with reflecting mirror (8) between Shu Jing (4), is reached and is divided after reflecting mirror (8) reflection by the light beam of reflecting mirror with holes (2) reflection
Shu Jing (4).
3. Spectral radiance measurement device as claimed in claim 1 or 2, which is characterized in that described is mesh to Barebone (6)
Viewing system；Or described includes third optical measuring device (9) to Barebone (6).
4. Spectral radiance measurement device as claimed in claim 3, which is characterized in that the third optical measuring device
It (9) is image detector.
5. the Spectral radiance measurement device as described in claims 1 or 2 or 4, which is characterized in that reflecting mirror with holes (2) with
Lens (10) are additionally provided between first optical measuring device (3), by the light of reflecting mirror with holes (2) aperture by lens (10) coupling
It is bonded to the light input end of the first optical measuring device (3).
6. Spectral radiance measurement device as claimed in claim 5, which is characterized in that in reflecting mirror with holes (2) and lens
(10) changeable aperture diaphragm (11) are additionally provided between.
7. Spectral radiance measurement device as described in claim 1, which is characterized in that in the beam splitter (4) and the second light
It learns between measuring device (5) and/or is equipped with lens (10) in the beam splitter (4) and between Barebone (6).
8. the Spectral radiance measurement device as described in any one of claim 1,2,4,6,7, which is characterized in that described
Reflecting mirror (2) with holes includes two and more than two has the changeable with holes anti-of different sizes and/or different shape aperture
Penetrate mirror (2).
9. Spectral radiance measurement device as claimed in claim 8, which is characterized in that further include driving reflecting mirror with holes (2)
And/or the driving motor of aperture diaphragm (11) switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915465.XU CN209085766U (en) | 2018-11-20 | 2018-11-20 | A kind of Spectral radiance measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915465.XU CN209085766U (en) | 2018-11-20 | 2018-11-20 | A kind of Spectral radiance measurement device |
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| CN209085766U true CN209085766U (en) | 2019-07-09 |
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| CN201821915465.XU Active CN209085766U (en) | 2018-11-20 | 2018-11-20 | A kind of Spectral radiance measurement device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180550A (en) * | 2020-10-14 | 2021-01-05 | 湖北华中光电科技有限公司 | Optical splitting device for receiving double wave bands through common window and application thereof |
| CN112284528A (en) * | 2020-10-22 | 2021-01-29 | 中国计量科学研究院 | Radiance meter |
| WO2024032154A1 (en) * | 2022-08-10 | 2024-02-15 | 武汉精测电子集团股份有限公司 | Apparatus for visual aiming spectrum measurement, and optical detection device |
-
2018
- 2018-11-20 CN CN201821915465.XU patent/CN209085766U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180550A (en) * | 2020-10-14 | 2021-01-05 | 湖北华中光电科技有限公司 | Optical splitting device for receiving double wave bands through common window and application thereof |
| CN112284528A (en) * | 2020-10-22 | 2021-01-29 | 中国计量科学研究院 | Radiance meter |
| WO2024032154A1 (en) * | 2022-08-10 | 2024-02-15 | 武汉精测电子集团股份有限公司 | Apparatus for visual aiming spectrum measurement, and optical detection device |
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