CN113467064B - Ultraviolet irradiation device for solar simulator - Google Patents
Ultraviolet irradiation device for solar simulator Download PDFInfo
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- CN113467064B CN113467064B CN202110799730.2A CN202110799730A CN113467064B CN 113467064 B CN113467064 B CN 113467064B CN 202110799730 A CN202110799730 A CN 202110799730A CN 113467064 B CN113467064 B CN 113467064B
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- VSQYNPJPULBZKU-UHFFFAOYSA-N mercury xenon Chemical compound [Xe].[Hg] VSQYNPJPULBZKU-UHFFFAOYSA-N 0.000 claims description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims 1
- 238000000265 homogenisation Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
- G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0095—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ultraviolet radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Toxicology (AREA)
- Photovoltaic Devices (AREA)
Abstract
The application discloses an ultraviolet irradiation device for a solar simulator. Comprising the following steps: the condensing lens body is provided with a plane non-reflection area positioned at the center and an annular ellipsoidal reflection area connected with the edge of the plane non-reflection area; the utility model provides a concretely designs condensing lens body, it has the plane non-reflection area that is located the center and with the annular ellipsoidal reflection area that plane non-reflection area border is connected, through set gradually first ring district and second ring district along plane non-reflection area normal direction on annular ellipsoidal reflection area inner wall, and both possess the same first focus, light source is from first focus emission light, light gathers to the second focus through first ring district reflection, it gathers to the third focus to gather through the reflection of second ring district, make light energy evenly distributed at two focuses, make the focusing facula homogenization after the reflection, improve focusing facula distribution mode.
Description
Technical Field
The present disclosure relates generally to the technical field of spacecraft ultraviolet irradiation tests, and in particular, to an ultraviolet irradiation device for a solar simulator.
Background
In the aerospace field, a series of space environment simulation tests are required before launching in order to ensure that a spacecraft can work normally in a space environment. Among them, ultraviolet irradiation test is one of the key test items. In a vacuum environment, the protection of the earth atmosphere is avoided, and the spacecraft is exposed to ultraviolet irradiation for a long time, so that the problems of damage, deformation, aging and the like of a plurality of parts can be caused, and the operation of the spacecraft can be influenced. In order to accurately simulate the space ultraviolet irradiation environment, corresponding simulation equipment, namely an ultraviolet irradiation source, is required.
At present, an integrating rod type ultraviolet radiation source widely applied generally uses an ellipsoidal condensing lens through a reflection light path, a light source is placed on one focal point of the ellipsoidal surface where a reflection surface is located, light emitted by the light source is condensed on the other focal point after being reflected, meanwhile, the center of one end face of the integrating rod is placed on the other focal point, so that condensed light is uniformly transmitted to the other end face through the integrating rod, and then the light meeting the requirements of the ultraviolet radiation source is finally emitted through an optical imaging system. For accelerated aging experiments, the ultraviolet radiation source typically provides several times the solar constant of radiation, and the imaging lens group typically forms a real image that is magnified multiple times, so that the energy density at the integrator rod is many times higher. Therefore, by adopting the ellipsoidal condenser, the center of the incident end of the integrating rod is a focus for converging all energy, and the energy is too concentrated, so that the end face of the integrating rod is easily damaged. In actual use, tiny dust or flaws can damage the end face of the integrating rod by focused light, influence the light transmission effect and reduce the service life of equipment. Therefore, we propose an ultraviolet irradiation device for a solar simulator, which is used for solving the problems that the focusing light spots are concentrated in distribution, the central area of the end face of the integrating rod bears extremely high energy density, the possibility of damaging the end face of the integrating rod is greatly increased, if fine particles interfere with the surface of the end face, the end face of the integrating rod is extremely easy to burn and invade by energy, the output power of a subsequent ultraviolet irradiation source is reduced, and the performance is rapidly reduced.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide an ultraviolet irradiation device for a solar simulator, which improves the distribution of focused light spots, reduces the probability of damage to the incident end face of the integrator rod, improves the stability and lifetime of the solar simulator system, and has a simple structure and is easy to implement.
In a first aspect, the present application provides a condenser comprising:
the condensing lens body is provided with a plane non-reflection area positioned at the center and an annular ellipsoidal reflection area connected with the edge of the plane non-reflection area;
a first annular region with a first curvature radius and a second annular region with a second curvature radius are sequentially and alternately arranged on the inner wall of the annular ellipsoidal reflecting region along the normal direction of the planar non-reflecting region;
the first annular region and the second annular region have the same first focus;
light emitted from the first focal point is converged to a second focal point through reflection of the first annular region, and the light is converged to a third focal point through reflection of the second annular region.
According to the technical scheme provided by the embodiment of the application, the first focus, the second focus and the third focus are all positioned in the normal direction of the plane non-reflection area.
According to the technical scheme provided by the embodiment of the application, the diameter of one side of the annular ellipsoidal reflection area, which is close to the plane non-reflection area, is 66mm, and the diameter of one side of the annular ellipsoidal reflection area, which is far away from the plane non-reflection area, is 250mm.
According to the technical scheme provided by the embodiment of the application, the curvature radius of the first annular region is 87.2mm, and the curvature radius of the second annular region is 87.8mm.
According to the technical scheme provided by the embodiment of the application, the light energy at the second focus is equal to the light energy at the third focus, and the sum of the light energy at the second focus and the light energy at the third focus is equal to the total light energy emitted by the light source.
In a second aspect, the present application provides an ultraviolet irradiation device for a solar simulator, comprising:
a condensing lens as described above;
a light source device disposed at the first focal point;
when the light source device emits light, the light is reflected and converged to the second focus through the first annular region, and is reflected and converged to the third focus through the second annular region; the second focus is arranged adjacent to the third focus, and the second focus is relatively close to the first focus;
and the incident end surface of the integrating rod is positioned at the central line of the connecting line of the second focus and the third focus, and the incident end surface is perpendicular to the normal line of the plane non-reflection area.
According to the technical scheme provided by the embodiment of the application, the light source device is a spherical mercury xenon lamp.
In summary, the technical scheme specifically discloses a specific structure of the condenser. The utility model provides a concretely designs condensing lens body, it has the plane non-reflection area that is located the center and with the annular ellipsoidal reflection area that plane non-reflection area border is connected, through set gradually first ring district and second ring district along plane non-reflection area normal direction on annular ellipsoidal reflection area inner wall, and both possess the same first focus, light source is from first focus emission light, light gathers to the second focus through first ring district reflection, it gathers to the third focus to gather through the reflection of second ring district, make light energy evenly distributed at two focuses, make the focusing facula homogenization after the reflection, improve focusing facula distribution mode.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 is a schematic diagram of power density distribution of focusing light spots on an incident end face of an integrator rod in a conventional solar simulator.
Fig. 2 is a schematic structural view of a condenser lens and an ultraviolet irradiation device for a solar simulator.
Fig. 3 is a schematic diagram of power density distribution of focusing light spots on an incident end face of an integrator rod in the ultraviolet irradiation device.
Fig. 4 is a schematic diagram of a power density distribution curve of a light spot on an exit end face of an integrator rod in a conventional solar simulator.
Fig. 5 is a schematic diagram of a power density distribution curve of a light spot on an exit end face of an integrator rod in the ultraviolet irradiation device.
Reference numerals in the drawings: 1. a condenser body; 2. a light source device; 3. an integrating rod; 4. a first ring region; 5. a second ring region; 6. a second focal point; 7. a third focal point; 8. an incident end face.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Please refer to fig. 2, which is a schematic structural diagram of a condensing lens provided in the present application, comprising:
the condensing lens comprises a condensing lens body 1, a lens and a lens, wherein the condensing lens body is provided with a plane non-reflection area positioned at the center and an annular ellipsoidal reflection area connected with the edge of the plane non-reflection area;
a first annular region 4 with a first curvature radius and a second annular region 5 with a second curvature radius are sequentially and alternately arranged on the inner wall of the annular ellipsoidal reflecting region along the normal direction of the planar non-reflecting region;
the first annular region 4 and the second annular region 5 have the same first focus;
light emitted from the first focal point is converged at the second focal point 6 by reflection from the first annular region 4, and is converged at the third focal point 7 by reflection from the second annular region 5.
In this embodiment, as shown in fig. 2, the condenser body 1 has a planar non-reflection area at the center and an annular ellipsoidal reflection area connected to the edge of the planar non-reflection area; the plane non-reflection area has no reflection effect on light; the first ring area 4 and the second ring area 5 are sequentially and alternately arranged on the inner wall of the annular ellipsoidal reflecting area along the normal direction of the planar non-reflecting area and are used for reflecting light rays emitted by the light source;
here, the first annular region 4 and the second annular region 5 have the same first focal point, namely, the focal points are equivalent to the focal points where the light source is placed in the traditional condenser lens, the light source can emit light from the first focal point, the light is converged to the second focal point 6 through the reflection of the first annular region 4, the light is converged to the third focal point 7 through the reflection of the second annular region 5, the light is respectively converged at the two focal points, the energy of the light at the second focal point 6 is equal to the energy of the light at the third focal point 7, and the sum of the two is equal to the total energy of the light emitted by the light source device 2, so that the focused light spots after reflection are homogenized.
And, the first focus, the second focus 6 and the third focus 7 are all located in the normal direction of the planar non-reflection area;
further, each annular region is polished so that the same annular region has a uniform bending degree, namely each first annular region 4 has the same first curvature radius; each second annular region 5 has the same second radius of curvature; so that the annular regions with the same curvature radius can converge the light rays to the corresponding same focal point when reflecting the light rays.
Further, the first annular region 4 and the second annular region 5 are arranged, for example, as shown in fig. 2, in a position relatively close to the planar non-reflective region, and the second annular region 5 is disposed adjacent to the first annular region, and the two annular regions are sequentially and alternately disposed in a normal direction of the planar non-reflective region.
Example two
Referring to fig. 2, a schematic structural diagram of an ultraviolet irradiation device for a solar simulator provided in the present application includes:
a condenser lens of the first embodiment;
a light source device 2 disposed at the first focal point;
when the light source device 2 emits light, the light is reflected and converged to the second focal point 6 through the first annular region 4, and is reflected and converged to the third focal point 7 through the second annular region 5; the second focal point 6 is arranged adjacent to the third focal point 7, and the second focal point 6 is relatively close to the first focal point;
and an integrating rod 3, wherein an incident end surface 8 of the integrating rod is positioned at a central line of a connecting line of the second focal point 6 and the third focal point 7, and the incident end surface 8 is perpendicular to the normal line of the plane non-reflection area.
In this embodiment, taking a conventional ellipsoidal condenser as an example, a light source is placed on one focal point of an ellipsoid where a reflecting surface is located, light emitted by the light source is converged on the other focal point after being reflected, meanwhile, the center of one end face of an integrating rod is placed on the other focal point, so that converged light is uniformly transmitted to the other end face of the integrating rod through the integrating rod, and then the converged light passes through an optical imaging system to finally emit light meeting the requirements of an ultraviolet irradiation source, wherein the parameters of the ellipsoidal condenser are as shown in table 1, the caliber of the ellipsoidal condenser is 250mm, the diameter of a bottom hole of the ellipsoidal condenser is 66mm, the radius of curvature of the ellipsoidal condenser is 87.5mm, and the conic surface coefficient of the ellipsoidal condenser is-0.5625;
TABLE 1 parameters of conventional condenser
As shown in fig. 1, when the light is transmitted by using the conventional condenser, the power density distribution of the focusing light spot on the incident end face of the integrator rod in the conventional solar simulator can be seen, after the light source is reflected and converged by the condenser with a single focus, the distribution of the focusing light spot is concentrated, and the peak value of the power density of the light spot is larger.
Based on the traditional condenser, the surface shape of the reflecting surface of the condenser is redesigned, and the traditional single structure is replaced by the multiple structure on the basis of keeping the original light transmission function;
as shown in fig. 2, the present embodiment has a condenser lens according to the first embodiment; a light source device 2 disposed at the first focal point as a light emitting source; here, the light source device 2 is of a type such as a spherical mercury xenon lamp;
the incidence end face 8 of the integrating rod 3 is arranged at the central line of the connecting line of the second focus 6 and the third focus 7, the incidence end face 8 is perpendicular to the normal line of the plane non-reflection area, the light reflected by the first ring area 4 and the second ring area 5 enters the integrating rod 3 from the incidence end face 8, and the light is reflected for multiple times by the integrating rod 3, and finally a uniform light source is formed on the light emitting end face of the integrating rod;
specifically, as shown in table 2, the caliber and bottom hole diameter of the condenser lens of this embodiment are selected to be consistent with the parameters of the conventional condenser lens, the first radius of curvature is selected to be 87.2mm, and the second radius of curvature is selected to be 87.8mm;
TABLE 2 condensing lens parameters of this example
The spherical mercury xenon lamp is used for emitting divergent light, the light is reflected and converged to a second focus 6 through a first annular region 4, and is reflected and converged to a third focus 7 through a second annular region 5, at this time, as shown in fig. 2, the second focus 6 is arranged adjacent to the third focus 7, and the second focus 6 is relatively close to the first focus; light rays at the two focuses enter the integrating rod 3 from the incident end face 8, the reflected light rays are reflected for multiple times by the integrating rod 3, and finally a uniform light source is formed on the light emitting end face of the light rays; and forming an image of the uniform light source on an illumination surface with a specified distance through an imaging lens, and finally forming a uniform light spot conforming to ultraviolet irradiation.
In addition, as shown in fig. 3, in the present embodiment, the distribution of the focusing light spots on the incident end face 8 of the integrating rod 3 is more uniform, the peak power density is lower, and the focusing light spots are uniformly distributed under the condition of unchanged energy transmission efficiency, so as to avoid damage to the integrating rod 3.
As shown in fig. 4 and 5, when the conventional condenser lens and the condenser lens of the present embodiment are used to simulate the ultraviolet irradiation environments respectively, the output power density distribution of the output end face of the integrating rod 3 in the two simulation tests is basically the same, and it can be seen that the condenser lens and the ultraviolet irradiation device redesigned in the present embodiment can implement the original light transmission, so that the present condenser lens and ultraviolet irradiation device can uniformly distribute the focusing light spots in the light transmission process, and ensure the energy transmission efficiency while reducing the damage rate of the integrating rod.
Further, as shown in table 3, compared with the traditional condenser, the condenser in this embodiment has the light spot peak power density of the incident end face of the integrator rod reduced by about 40%; the diameter of the light spot is increased by about 56 percent, and the good homogenizing effect is achieved, so that the condensing lens structure and the ultraviolet irradiation device for the solar simulator can reduce the damage probability of the integrating rod and effectively improve the overall stability of the system.
Table 3 comparison of the conventional ellipsoidal condenser with the condenser of the present scheme to focus spots
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (5)
1. An ultraviolet irradiation apparatus for a solar simulator, comprising:
a condenser lens, comprising:
a condenser body (1) having a planar non-reflection region at the center and an annular ellipsoidal reflection region connected to the edge of the planar non-reflection region;
a first annular region (4) with a first curvature radius and a second annular region (5) with a second curvature radius are sequentially and alternately arranged on the inner wall of the annular ellipsoidal reflecting region along the normal direction of the planar non-reflecting region;
the first annular region (4) and the second annular region (5) have the same first focus;
light emitted from the first focal point is converged at a second focal point (6) through reflection of the first annular region (4), and is converged at a third focal point (7) through reflection of the second annular region (5);
the light energy at the second focus (6) is equal to the light energy at the third focus (7), and the sum of the two is equal to the total light energy emitted by the light source;
a light source device (2) disposed at the first focal point;
when the light source device (2) emits light, the light is reflected and converged to the second focus (6) through the first annular region (4), and is reflected and converged to the third focus (7) through the second annular region (5); the second focal point (6) is arranged adjacent to the third focal point (7), and the second focal point (6) is relatively close to the first focal point;
and the incidence end surface (8) of the integrating rod (3) is positioned at the central line of the connecting line of the second focus (6) and the third focus (7), and the incidence end surface (8) is perpendicular to the normal line of the plane non-reflection area.
2. An ultraviolet irradiation device for a solar simulator according to claim 1, characterized in that the first focus, the second focus (6) and the third focus (7) are all located in the normal direction of the planar non-reflective area.
3. An ultraviolet irradiation device for a solar simulator as claimed in claim 1, wherein the diameter of the side of the annular ellipsoidal reflective region close to the planar non-reflective region is 66mm, and the diameter of the side thereof remote from the planar non-reflective region is 250mm.
4. A uv irradiation device for a solar simulator according to claim 3, wherein the first radius of curvature is 87.2mm and the second radius of curvature is 87.8mm.
5. An ultraviolet irradiation device for a solar simulator according to claim 1, characterized in that the light source device (2) is a spherical mercury xenon lamp.
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| CN202110799730.2A CN113467064B (en) | 2021-07-15 | 2021-07-15 | Ultraviolet irradiation device for solar simulator |
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| CN202110799730.2A CN113467064B (en) | 2021-07-15 | 2021-07-15 | Ultraviolet irradiation device for solar simulator |
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| CN113467064B true CN113467064B (en) | 2023-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100480778C (en) * | 2002-10-23 | 2009-04-22 | 台达电子工业股份有限公司 | Light source reflective device |
| US20060018125A1 (en) * | 2004-07-21 | 2006-01-26 | Miller Jack V | High-efficiency fiber optic lighting system |
| CN202013448U (en) * | 2011-05-04 | 2011-10-19 | 湘潭电机股份有限公司 | Sunlight condenser |
| CN103454760B (en) * | 2013-08-28 | 2015-11-18 | 成都谱视科技有限公司 | Two-stage focusing sunlight converging device |
| TWI598633B (en) * | 2014-08-05 | 2017-09-11 | 佳能股份有限公司 | Light source apparatus, illumination device, exposure apparatus, and device manufacturing method |
| CN109143475B (en) * | 2018-08-29 | 2020-12-11 | 浙江光塔节能科技有限公司 | Coupling lens system |
| CN109637331B (en) * | 2019-01-02 | 2021-09-07 | 北京卫星环境工程研究所 | Large-scale solar simulator horizontal ignition lamp unit array and arrangement and support method thereof |
| CN211856888U (en) * | 2020-03-11 | 2020-11-03 | 北京润科通用技术有限公司 | Optical system and radar |
| CN211979417U (en) * | 2020-04-09 | 2020-11-20 | 东莞科视自动化科技有限公司 | LDI light source generating device |
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