CN117469609B - ClassAAA steady-state solar simulator uniformity light supplementing light source and adjusting method thereof - Google Patents
ClassAAA steady-state solar simulator uniformity light supplementing light source and adjusting method thereof Download PDFInfo
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- CN117469609B CN117469609B CN202311530852.7A CN202311530852A CN117469609B CN 117469609 B CN117469609 B CN 117469609B CN 202311530852 A CN202311530852 A CN 202311530852A CN 117469609 B CN117469609 B CN 117469609B
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001228 spectrum Methods 0.000 claims abstract description 14
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 239000007888 film coating Substances 0.000 claims abstract description 5
- 238000009501 film coating Methods 0.000 claims abstract description 5
- 238000005286 illumination Methods 0.000 claims description 10
- 230000000750 progressive effect Effects 0.000 claims description 7
- 230000003595 spectral effect Effects 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 230000000153 supplemental effect Effects 0.000 claims 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/006—Solar simulators, e.g. for testing photovoltaic panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/006—Controlling the distribution of the light emitted by adjustment of elements by means of optical elements, e.g. films, filters or screens, being rolled up around a roller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The application relates to the technical field of light supplementing light sources of steady-state solar simulators, and discloses a ClassAAA steady-state solar simulator uniformity light supplementing light source and an adjusting method thereof, wherein the light supplementing light source comprises a light emitting element and is used for providing a light source; the reflector is arranged in the light emitting direction of the light emitting element and is used for focusing the light rays emitted by the light emitting element to a first set direction or area; the lens component is arranged in the light emitting direction of the reflector and is used for controlling the shape and the diffusion angle of the light rays through zooming so as to focus the reflected light rays into a second set area; the film coating filter is arranged in the light emitting direction and is used for matching with an AM 1.5 spectrum; the double diaphragms are matched with the mask plate and are respectively used for adjusting the light-emitting shape and irradiance of the light source; the shell, the luminous element, the reflector, the lens component, the double diaphragms, the mask plate, the ballast and the like are arranged in the shell. The application has the advantage of improving the uniformity of the solar simulator.
Description
Technical Field
The application relates to the field of light supplementing light sources, in particular to a ClassAAA steady-state solar simulator uniformity light supplementing light source.
Background
The steady-state solar simulator is a metering instrument used in the field of physics and is used for testing a photovoltaic module and an energy storage battery. The device can simulate the illumination condition of the real sun, and provide continuous and stable illumination for test. During testing, a sample to be tested needs to be placed under illumination of a simulator, and comprehensive electrical performance indexes of the measured sample are estimated. The testing method can effectively detect the electrical properties of the photovoltaic module and the battery and the charge and discharge properties of the energy storage battery, and helps research and development personnel optimize product design and technical parameters.
However, the irradiation uniformity of the steady-state simulator is always an industry pain point, and for the pain point, the general treatment modes in the industry are as follows:
① Luminaire outlet/filter surface shading strip: the reflection baffle of the metal halogen lamp is often scattered in four directions, and one shading strip can generate four shadow areas with different depths.
② Adjusting the position of the lamp: the irradiation area has the weakest four corners and the second four corners. And the light source is always adjusted to be at last, one half of the light source is exposed outside the effective irradiation area, and the other half of the light source is in the irradiation area, so that nearly 50% of light energy is lost.
③ Adjusting the angle of the lamp: the whole irradiation area is spliced, and synchronous attenuation of each lamp cannot be guaranteed, so that repeated adjustment is needed. Moreover, each lamp is irradiated and crossed with the adjacent lamps, and the lamps interfere with each other.
④ Mirror reflection baffle around light tunnel terminal: the uniformity of the lower corners can only be improved by repairing the light absorbing and reflecting materials, and the lower corners cannot be kept for a long time along with the attenuation of the light source.
⑤ Adjusting the power supply of each lamp: power adjustment in the range of 60% -100% or more, spectral matching variation can drop from class A to class C or below, potentially causing serious spectral mismatch.
Disclosure of Invention
In order to improve the uniformity of a steady-state solar simulator light source, the application provides a ClassAAA steady-state solar simulator uniformity light supplementing light source.
On one hand, the ClassAAA steady-state solar simulator uniformity light supplementing light source provided by the application adopts the following technical scheme:
a ClassAAA steady state solar simulator uniformity light-supplementing light source, comprising:
A light emitting element for providing a light source;
The reflector is arranged in the light emitting direction of the light emitting element and is used for focusing the light rays emitted by the light emitting element to a first set direction or area;
The lens component is arranged in the light emitting direction of the reflector and is used for controlling the shape and the diffusion angle of the light rays through zooming so as to focus the reflected light rays into a second set area;
The film coating filter is arranged in the light emitting direction and is used for matching with an AM1.5 spectrum;
The double diaphragms and the mask are respectively used for adjusting the light-emitting shape and irradiance of the light source;
the shell, the luminous element, the reflector, the lens component, the double diaphragms, the mask plate and the ballast are arranged in the shell.
By adopting the technical scheme, the luminous element is taken as a core part, and a filter at the rear end is combined to emit a required spectrum; the reflector is intended to focus light into a desired first set direction or area; the lens assembly is intended to focus light into a second set area, such as a smaller area or spread it over a larger area; the double diaphragms and the mask are respectively used for adjusting the light-emitting shape and irradiance of the light source. The adjustable diaphragm comprises a diaphragm A and a diaphragm B, wherein the diaphragm A is positioned at a light source outlet, the diaphragm B is positioned at the tail end of the lens assembly, and the diaphragm A is adjusted to be closed and matched with the mask plate so as to adjust the shape and the size of a light spot of the light supplementing light source in an electrodeless manner; and adjusting the diaphragm B to be closed so as to steplessly adjust the irradiation intensity of the light supplementing light source.
By adopting the technical scheme, the light spot size and the irradiation intensity are respectively and steplessly adjusted through the adjustable aperture.
The lens assembly comprises a convex lens and a Fresnel lens, and a lens interval is arranged between the convex lens and the Fresnel lens; in the set range, the smaller the distance between the lenses is, the larger the output light spots are, and the light intensity is flexibly set from the center to the edge; on the contrary, the larger the distance between the lenses is, the smaller the output light spots are, and the light intensity centers and the edges are uniformly arranged.
By adopting the technical scheme, the light spots can be controlled by zooming, and the light intensity contrast at the junction of the light supplementing edge and the non-light supplementing junction is avoided.
The emergent facula of the light supplementing light source is overlapped in the weak light area of the main light source irradiation surface.
By adopting the technical scheme, extra light supplement is provided to ensure that the sample area is uniformly illuminated, and dark areas or shadows are avoided.
Optionally, the light emitting element comprises a metal halogen lamp of a selected characteristic spectral distribution.
On the other hand, the method for adjusting the uniform light supplementing light source of the ClassAAA steady-state solar simulator provided by the application adopts the following technical scheme:
A ClassAAA steady state solar simulator uniformity light supplementing light source adjusting method based on the ClassAAA steady state solar simulator uniformity light supplementing light source comprises the following steps:
And adjusting the double diaphragms, the mask plate and the incidence angle, and supplementing light for the size of the spot shape of the block lower than the set radiation illuminance.
The lens spacing is adjusted to adjust the uniform and progressive light spots.
By adopting the technical scheme, the light supplementing of the area lower than the set radiation illuminance is realized by adjusting the position and the angle of the light source or using optical elements such as double diaphragms, masks and the like. Adjusting the lens pitch adjusts the uniformity and progression of light by changing the distance between the lenses. If stronger uniform illumination is required, the lens spacing can be adjusted closer; the lens pitch can be adjusted further if progressive light with a gradual change in illumination is required.
Optionally, the method further comprises the following steps of: the adjusting diaphragm A is closed, and the size of the light spot is adjusted steplessly.
By adopting the technical scheme, the diaphragm A and the mask plate are usually positioned near the light source, and the shape and the size of the light spot emitted by the light source can be controlled. When the closing degree of the diaphragm A is adjusted, the size of the light spot irradiated on the surface of the sample can be changed.
Optionally, the method further comprises the following steps of: the adjusting diaphragm B is closed, and the irradiation intensity is adjusted steplessly.
By adopting the technical scheme, the diaphragm B is usually positioned at the tail end of the lens, and can control the intensity of light transmitted through the lens. When the closing degree of the diaphragm B is adjusted, the light intensity, namely the irradiation intensity, can be changed. The closing degree of the diaphragm A and the diaphragm B can be adjusted in an electrodeless manner, so that the light spot size and the irradiation intensity can be finely adjusted, and different light supplementing requirements can be met.
Optionally, the method of zoom adjustment comprises: in the adjustable range, the shorter the lens distance is, the larger the light spot is, and the light intensity is gradually reduced from the center to the edge; otherwise, the light intensity of the center and the edge is uniform.
By adopting the technical scheme, when the lens interval is shortened, the focus formed after the light passes through the lens can be closer, so that the light spot can be enlarged. Meanwhile, as the diffusion degree of the light passing through the lens is gradually reduced from the center to the edge, the light intensity is gradually reduced from the center to the edge. Conversely, as the lens pitch increases, the focal point formed by the light passing through the lens becomes more distant and the spot becomes smaller. At this time, the light is diffused uniformly after passing through the lens, so that the light intensity at the same edge as the center becomes uniform.
Optionally, different lighting angles can be adopted to ensure that the best illumination effect is achieved according to different shapes and intensity requirements of the areas to be supplemented with light. Perpendicular lighting is suitable for regular-shaped spot illumination, while oblique lighting is suitable for irregular-shaped spot illumination.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The light supplementing light source is subjected to light path distance adjustment, uniform light, progressive light zooming in the whole process, light spot size adjustment, irradiation intensity adjustment, edge light and other changes on the spectrum matching degree, so that the overall index is controlled in the Class AAA range;
2. the light spots are controlled through zooming, so that the edge softening treatment is realized, and the light intensity contrast at the junction of the light supplementing edge and the non-light supplementing edge is reduced;
3. the adjustable diaphragm is arranged in a double diaphragm mode, so that the size of a light spot and the irradiation intensity can be adjusted steplessly;
4. The stability is strong, the power and irradiance are relatively small, the power and irradiance are not changed after being started for a few minutes, and the instability tends to zero or is lower than the indication value.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a light-compensating light source.
Fig. 2 is a schematic diagram of the overall structure of another light-compensating light source.
Fig. 3 is a physical diagram of spectral measurement.
Fig. 4 is an application live view.
Fig. 5 is a plan view of a typical 2.6m1.5 m module 8 lamp illumination-environment box.
Fig. 6 is a physical diagram of the main light source and the light-compensating light source.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The embodiment of the application discloses a ClassAAA steady-state solar simulator uniformity light supplementing light source. The light supplementing light source comprises a light emitting element, a reflector, a lens assembly, a film coating filter, an adjustable diaphragm, a mask, a controller and a shell;
a light emitting element for providing a light source comprising a metal halogen lamp of a selected characteristic spectral distribution, the light source being extendable to a filtered halogen lamp, a filtered xenon lamp, an LED.
The reflector is arranged as a reflecting mirror, is arranged in the light emitting direction of the light emitting element and is used for focusing the light rays emitted by the light emitting element to a first set direction or area, and the reflecting mirror is a customized concave mirror.
The lens component is arranged in the light emitting direction of the reflector and is used for controlling the shape and the diffusion angle of the light spot through zooming so as to focus the reflected light into a second set area; in this embodiment, the lens assembly includes a convex lens and a fresnel lens, and the lens spacing between the convex lens and the fresnel lens in the light source is adjusted to adjust the uniform/progressive light conversion. In the adjustable range, the shorter the distance between the lenses is, the larger the output light spots are, and the light intensity is gradually reduced from the center to the edge, namely, the light intensity edge is flexibly arranged; on the contrary, the longer the distance between the lenses is, the smaller the output light spot is, and the uniform light intensity is set at the same center and the edge.
The film coating filter is arranged in the light emitting direction of the lens component and is used for matching an AM 1.5 spectrum and a spectrum matching degree Class A+ grade.
An adjustable diaphragm: the double diaphragms comprise diaphragms A and diaphragms B, the diaphragm A is adjusted to be closed, and the size of a light spot can be adjusted; the irradiation intensity can be adjusted by adjusting the closing of the diaphragm B. The specific description is as follows: rather than adjusting irradiance by power supply power, power supply power adjustment may change the spectrum. The diaphragm is used for limiting the irradiation range of the light rays so as to control the distribution and the shape of the light rays. In the embodiment, the double diaphragms are adopted, so that stepless adjustment can be realized. Wherein, the diaphragm adopts 1-100% electrodeless amplitude modulation, and the uniformity distribution of light spots is not affected when the irradiation intensity is regulated. The adjustment accuracy can be less than 1W/m 2, which, for example, is a critical aid in the adjustment of the two-sided assembly backlight 300W/m 2 to Class A (+ -6W/m 2).
The structure of the housing has a plurality of kinds:
Referring to fig. 1, one of the shapes of the housing is shown.
Referring to fig. 2, another shape of the housing is shown.
The luminous element, the reflector, the coated lens component, the diaphragm mask plate and the ballast are arranged in the shell, and a universal angle adjusting component is arranged outside the shell, so that the installation angle of the shell can be conveniently adjusted, and the irradiation angle can be adjusted.
In order for the main light source and the light-supplementing light source to match during actual use, the main light source and the light-supplementing light source need to maintain the same Class a level.
The spectrum matching degree of the power supply within the adjusting range of 75-100% ensures Class A+;
the spectrum matching degree of the power supply within the adjustment range of 60-75% at least ensures Class A.
The whole service life of the lamp tube at least ensures Class A, and Class A+ is ensured in the half life.
When the filter is designed, the trend of 6 sections of spectrums along with the power adjustment of the power supply and the service life of the lamp tube is calculated, and the positive deviation and the negative deviation are reversely converted.
Referring to fig. 3, different test results corresponding to different lens pitches, opening and closing of the diaphragms a and B, and inclination angles of the light source are adjusted through spectral measurement.
Referring to fig. 4, in practical application, for the lower lighting mode, the light compensating light sources are distributed on the periphery of the main light source, and are mainly concentrated at four corners of the main light source, and the edges of part of the main light source and the irradiation junction of the two lamps.
Referring to fig. 5, for the upgrade and reconstruction of the simulator of the test box structure, the number of light supplementing blocks needs to be calculated, and the lamps are installed around the peripheral holes of the main light source. In general, the main light source center direct point irradiates the strongest, and the user can adjust irradiance in various ways, so that the strongest part is not more than 1020W/m 2, the light supplementing part is mainly at four corners, and part of the edges and the two-lamp irradiation intersection part are really needed. The gray area is the main light source position, and the small frame is the open position for placing the light filling light source. The light supplementing light source surrounds the main light source, and the incidence angle can be finely adjusted. And (5) adjusting the incident angle, irradiance and light spot size and shape of the block lower than 980W/m 2 to carry out light filling.
According to the results of the experimental test, the minimum unevenness of the light supplementing light source is higher than the unevenness after the light supplementing light source is turned on.
The embodiment of the application discloses a ClassAAA steady-state solar simulator uniformity light supplementing light source adjusting method. Based on the ClassAAA steady-state solar simulator uniformity light supplementing light source, the method comprises the following steps:
1. Adjustment of uniform light/gradual light transition:
by adjusting the spacing between the convex lens and the fresnel lens, a uniform/progressive light transition is achieved.
In the adjustable range, the shorter the distance is, the larger the light spot is, the light intensity is gradually reduced from the center to the edge (edge is softened), otherwise, the light intensity of the center and the edge is uniform.
2. Adjustment of spot size:
the light spot size can be adjusted by adjusting the closing of the diaphragm A.
3. Adjusting the inclination angle of the light spot:
When the area needing light filling is smaller, the light spots are in a right circular shape when vertical light filling is adopted;
When the shape of the area needing light filling is long and narrow, the incidence angle of the light needs to be adjusted, so that the illumination is obliquely incident on the surface of the component, and an irregular elliptical light spot is formed.
4. Adjustment of irradiance:
the irradiation intensity can be adjusted by adjusting the closing of the diaphragm B.
The specific description is as follows: rather than adjusting irradiance by power supply power, power supply power adjustment may change the spectrum.
The diaphragm adopts 1-100% electrodeless amplitude modulation, and the uniformity distribution of light spots is not affected when the irradiation intensity is regulated. The adjustment accuracy can be lower than 1W/m 2, which plays a critical role in adjusting the double-sided assembly backlight 300W/m 2 to the Class A (+ -6W/m 2).
For example, referring to the IEC 60904-1-2:2019 MQT-09 double-sided assembly hot spot test, if single-sided lighting is used, irradiance needs to be controlled at 1000+300. Phi. (W/m 2). The uniformity was readjusted for each trial with a different double-sided factor phi. With the light supplementing technology, double-sided lighting can be realized, and the technical difficulty of double-sided lighting is that the low irradiance of the backlight source is controlled to be in Class B (namely + -5 percent and + -15W/m 2), which is more difficult than that of front lighting high irradiance Class A (namely + -2 percent and + -20W/m 2).
Referring to fig. 6, a physical diagram of a double sided module backlight and a light supplementing light source is shown.
The specific description is as follows: the backlight irradiance was 300W/m 2. The tolerance for the total irradiance is not greater than + -50W/m 2, but the condition of Class B (+ -5%) is met, namely + -15W/m 2. This is even very difficult to frontlight high irradiance Class A (i.e. + -2%, + -20W/m 2).
The irradiation intensity is regulated by closing a diaphragm: 1-100% of random amplitude modulation, and the uniformity distribution of light spots is not affected when the irradiation intensity is regulated. The adjustment of the amplitude below 1W/m 2 can be easily realized even if the backlight 300W/m 2 is adjusted to the Class A (+ -6W/m 2).
Double-sided glazing has the advantage over single-sided glazing:
Double-sided polishing advantage: the irradiance of the two sides is constant, the front side is 1000W/m 2, and the back side is 300W/m 2, no matter how many coefficients of the two sides of the component are, no additional adjustment is needed.
Single-sided polishing disadvantages: the same manufacturer component has multiple double-sided coefficient specifications, if the inspection samples accepted by a third-party laboratory are subjected to irradiance adjustment according to 1000+300.phi, the uniformity adjustment is carried out according to two conditions of +/-50W/m 2 and BBB level after the irradiance adjustment, and the experimental operation is complex.
With the light supplementing technology, double-sided polishing can be realized.
The application has the advantages that:
① No matter the irradiance fall of the steady-state simulators of the B level (+ -50W/m 2) and the C level (+ -100W/m 2), the irradiance lower than 980W/m 2 in the irradiation area can be supplemented by controlling the irradiance of the high point 1020W/m 2, so that the uniformity is repaired to be within the range of 980-10200W/m 2（±20W/m2) Class A.
② The light supplementing light source adjusts the irradiation uniformity through all aspects of optical path distance and angle adjustment, uniform light, progressive light zooming whole course, light spot shape and size adjustment, irradiation intensity adjustment and the like, and reaches Class A and even higher level.
The main light source and the light supplementing light source of the steady-state simulator are both in the same Class of Class A+, so that uncertainty caused by spectrum mismatch is avoided by light mixing, and the dispute of spectrum adaptation of the mixed light is avoided.
③ The light spot can be controlled by zooming, so that the light intensity of the center and the edge is uniform, or the light intensity is gradually reduced from the center to the edge (edge softening treatment), and the dispute of light intensity contrast at the junction of the light supplementing edge and the light non-supplementing edge is avoided.
④ Double diaphragm and mask plate: the size of the light spot and the irradiation intensity are respectively and steplessly adjusted by 1-100% of an adjustable aperture.
⑤ Stability: because both the power and irradiance are relatively small, there is no longer a change after a few minutes on, and the instability tends to zero, or below the indication.
And the main light source and the light supplementing light source are independently started for comparison, so that uniformity repeated measurement fluctuation is mostly derived from factors such as an external power grid, ambient temperature, stability of the main light source and the like, and the instability of the light supplementing block is lower than an indication value and cannot be measured.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. ClassAAA steady state solar simulator homogeneity light filling light source, characterized in that includes:
A light emitting element for providing a light source;
The reflector is arranged in the light emitting direction of the light emitting element and is used for focusing the light rays emitted by the light emitting element to a first set direction or area;
The lens component is arranged in the light emitting direction of the reflector and is used for controlling the shape and the diffusion angle of the light rays through zooming so as to focus the reflected light rays into a second set area;
the film coating filter is arranged in the light emitting direction and is used for matching with an AM 1.5 spectrum;
The double diaphragms and the mask are respectively used for adjusting the light-emitting shape and irradiance of the light source;
The shell, the said luminescent element, reflector, lens assembly, double diaphragm, mask, ballast are put into said shell; the adjustable diaphragm comprises a diaphragm A and a diaphragm B, wherein the diaphragm A is positioned at the light source, the diaphragm B is positioned behind the lens component, and the diaphragm A is adjusted to be closed and matched with the mask plate so as to adjust the spot shape and the size of the light supplementing light source in an electrodeless manner; and adjusting the diaphragm B to be closed so as to steplessly adjust the irradiation intensity of the light supplementing light source.
2. The ClassAAA steady state solar simulator uniformity supplemental light source of claim 1, wherein the lens assembly comprises a convex lens and a fresnel lens with a lens spacing therebetween; in the set range, the smaller the distance between the lenses is, the larger the output light spots are, and the light intensity is flexibly set from the center to the edge; on the contrary, the larger the distance between the lenses is, the smaller the output light spots are, and the light intensity centers and the edges are uniformly arranged.
3. The ClassAAA steady state solar simulator uniformity supplemental light source of claim 1, wherein the supplemental light source exit spot is superimposed on the dim light zone of the main light source illumination plane.
4. The ClassAAA steady state solar simulator uniformity supplemental light source of claim 1, wherein the light emitting element comprises a metal halogen lamp of a selected characteristic spectral distribution.
5. A method for adjusting a uniform light source of a ClassAAA steady state solar simulator, based on a ClassAAA steady state solar simulator uniform light source as defined in any one of claims 1-4, characterized in that: the method comprises the following steps:
adjusting the diaphragm, the mask plate and the incident angle, and supplementing light for the shape and the size of the spot of the block which is lower than the set radiation illuminance;
the lens spacing is adjusted to adjust the uniform light and the progressive light.
6. The ClassAAA steady state solar simulator uniformity supplemental light source modulation method of claim 5, further comprising spot modulation: the adjusting diaphragm A is closed, and the size of the light spot is adjusted steplessly.
7. The ClassAAA steady state solar simulator uniformity supplemental light source modulation method of claim 6, further comprising spot modulation: the adjusting diaphragm B is closed, and the irradiation intensity is adjusted steplessly.
8. The method for adjusting a uniform supplemental light source for a solar simulator of ClassAAA as claimed in claim 7, wherein the method for adjusting the zoom comprises: in the adjustable range, the shorter the lens distance is, the larger the light spot is, and the light intensity is gradually reduced from the center to the edge; otherwise, the light intensity of the center and the edge is uniform.
9. The ClassAAA steady state solar simulator uniformity supplemental light source modulation method of claim 5, wherein modulating the spot shape comprises: and obtaining the spot shape through the mask.
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| CN204629264U (en) * | 2015-06-04 | 2015-09-09 | 陕西众森电能科技有限公司 | The short distance direct-injection type solar simulator that a kind of irradiated area is adjustable |
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| CN110553735A (en) * | 2019-10-17 | 2019-12-10 | 中国科学院长春光学精密机械与物理研究所 | Stability test system of solar spectrum irradiance monitor |
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| CN112664866A (en) * | 2020-12-25 | 2021-04-16 | 欧普照明股份有限公司 | Optical system and spot lamp |
| CN115218151A (en) * | 2022-07-26 | 2022-10-21 | 浙江炽云科技有限公司 | Light source device and HUD sunshine backward flow experimental apparatus |
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