A kind of sunlight simulation systemTechnical field
The utility model is related to optical technical fields, and in particular to a kind of sunlight simulation system.
Background technology
Solar simulator is a kind of equipment of simulated solar irradiation indoors, and in photovoltaic industry, it is mainly used for solar cellElectric performance test, light aging test with component, hot plate endurance test etc..
Artificial light source currently used for simulated solar irradiation is mainly halogen tungsten lamp, the xenon lamp etc. being closer to sunlight spectrumLight source, because of the restriction of principle of luminosity, there is volumes greatly, Spectral matching precision is low, time stability is poor, the uniformity is bad,The defects of capacity usage ratio is low, and collimation is poor, and its available spectrum range only has 300nm ~ 1100nm, this for silicon wafer system tooThere is no problem for the narrow tests of spectral response ranges such as positive energy battery/component；But it is more than for spectral response rangeThe front and back knot of 1100nm, more knot, semiconducting compounds etc. and novel thin film solar cell test, cannot realize full spectrum modelThe complete response enclosed.LED color mixing method simulated solar irradiations are more also used, using calculated in advance, store number in advanceAccording to when needing which type of sunlight spectrum, it is only necessary to which the data for recalling storage can；But this mode does not account forThe decaying of LED, the damage of LED, error of optical system etc. will necessarily to the long lasting effect of spectrum, over time spectrumChange.
Utility model content
It is accurate the technical problem to be solved by the present invention is to provide a kind of simple in structure, easy to use, Spectral matching degree heightIt is straightforward good, the high sunlight simulation system of the uniformity.
The task of the utility model is done in such a way that a kind of sunlight simulation system, it is characterised in that：Including light source battle arrayRow group and the corresponding even optical arrays group of array of source group, light uniforming device one, light uniforming device two and collimation lens set, array of source groupBe set to the side of even optical arrays group light inlet, the light extraction end of even optical arrays group be distributed in respectively light uniforming device one left side andThe light extraction end side of upper and lower both sides, light uniforming device one is provided with light uniforming device two, the light extraction of the light inputting end and light uniforming device one of light uniforming device twoEnd is opposite, and two light extraction end side of light uniforming device is provided with collimation lens set.
Preferably, light uniforming device two is hollow or solid, and hollow light uniforming device two is coated with high-reflecting film inside it, light uniforming device twoThe junction of horizontal ends and vertical end, which is provided with, tiltedly drapes over one's shoulders, and the entering light end face of light uniforming device two is mutually hung down with the light output end of light uniforming device twoDirectly, the light extraction end side of light uniforming device two is provided with collimation lens set, and collimation lens set is made of lens one and lens two, lens oneIt is opposite with the light-emitting surface of light uniforming device two into smooth surface, the light-emitting surface of lens one is opposite into smooth surface with lens two.
Preferably, lens one or lens two can be biconvex lens, planoconvex spotlight or concave-convex lens, and the light-emitting surface of lens one isThe light-emitting surface on convex surface, lens two is convex surface, and lens one and two surface of lens are coated with ultraviolet anti-reflection film.
Preferably, the array of source group of one two of which side of light uniforming device is the LED chip of different colours wave band, the other sideThe array of source group in face is the LED chip for other color bands for being different from other two array of source group, white light source or closeInfrared light light source.
Preferably, even optical arrays group is the array group being made of tapered light pipes array or fly eye lens array.
Preferably, optical filter is provided in light uniforming device one, optical filter is long wave pass filter or short wave pass filter.
Preferably, the shape of light uniforming device one is cuboid, and two wherein opposite faces of light uniforming device one are square face, at itLight uniforming device one between two opposite facings is internally provided with the inclined optical filter of a row, is mutually parallel between optical filterSetting.
Preferably, the shape of light uniforming device one is square, and the optical filter in space X shape is provided in light uniforming device one.
Preferably, the shape of light uniforming device one is cuboid, and the upper and lower both sides inside light uniforming device one are symmetrically arranged in V wordsThe optical filter of shape.
The utility model is reasonable for structure, easy to use, and spectral region is up to 300nm ~ 1500nm, and Spectral matching degree is high,It is small, unevenness≤3%, parallel half-angle≤0.5 degree.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is a kind of structural schematic diagram of optical filter；
Fig. 3 is another structural schematic diagram of optical filter.
Drawing explanation：1, array of source group, 2, even optical arrays group, 3, light uniforming device one, 4, light uniforming device two, 5, horizontal ends, 6,Vertical end, 7, optical filter, 8, collimation lens set, 9, lens one, 10, lens two, 11, slope.
Specific implementation mode
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based onOrientation or positional relationship shown in the drawings is merely for convenience of description the utility model, does not indicate or imply the indicated dressIt sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility modelLimitation.
The technical solution of the utility model, a kind of sunlight simulation system, including array of source is described in detail in conjunction with attached drawingGroup 1 and the corresponding even optical arrays group 2 of array of source group, light uniforming device 1, light uniforming device 24 and collimation lens set 8, array of sourceGroup is set to the side of even optical arrays group light inlet, the light extraction end of even optical arrays group be distributed in respectively light uniforming device one left side andThe light extraction end side of upper and lower both sides, light uniforming device one is provided with light uniforming device two, the light extraction of the light inputting end and light uniforming device one of light uniforming device twoEnd is opposite, and two light extraction end side of light uniforming device is provided with collimation lens set, and the light that array of source group is sent out is respectively in even optical arrays groupIt is middle that light beam is formed after multiple reflections, then to after reflection and filtering, being passed through after being emitted to light uniforming device two in light uniforming device oneAfter crossing multiple reflections and collimation, exported with the multi beam light of the superelevation uniformity, output light is emitted to collimation lens set, collimatedAfter lens group collimation, finally with the parallel light output of the high collimation of high evenness, compared to the mode for using conventional light source or incite somebody to actionSame amount of distribution of light sources is in a face, the structure being filtered, the utility model by three different array of source groups,After three groups of different array of source groups are by one even light of light uniforming device and the filtering of different filter plates, it is combined to together, so thatTotal compact, compact, to solve, current sunlight simulation system volume is big, Spectral matching precision is low, uniformSpend the defects of bad, capacity usage ratio is low, and collimation is poor.
The array of source group of one two of which side of light uniforming device is the LED chip of different colours wave band, the light of another sideSource array group is LED chip, white light source or the near infrared light for other color bands for being different from other two array of source groupLight source, even optical arrays group are the array group being made of tapered light pipes array or fly eye lens array, it is preferred that tapered light pipes arrayBy multiple same volumes with the tapered light pipes tapered light pipes array arranged in parallel formed of size, light source incidence to tapered light pipes battle arrayIn row, after multiple reflection, the preferable light beam output of the uniformity is formed, it is preferred that fly eye lens array is multiple by two rowEyelens array parallel arranges, and the focus of each junior unit lens in first row fly eye lens array and the compound eye of secondary series are saturatingThe center of corresponding junior unit lens overlaps in lens array, and the optical axis of two row fly's-eye lenses is parallel to each other, to reach energy profitWith the high even light effect of rate.
Light uniforming device two is hollow or solid, and hollow light uniforming device two is coated with high-reflecting film inside it, reduces the damage of light energyConsumption, the horizontal ends 5 of light uniforming device two and the junction of vertical end 6, which are provided with, tiltedly drapes over one's shoulders 11, the entering light end face of light uniforming device two and light uniforming deviceTwo light output end is perpendicular, and the light extraction end side of light uniforming device two is provided with collimation lens set, and collimation lens set is by one 9 He of lensLens 2 10 form, lens one it is opposite with the light-emitting surface of light uniforming device two into smooth surface, the light-emitting surfaces of lens one and lens two intoSmooth surface is opposite, and lens one or lens two can be biconvex lens, planoconvex spotlight or concave-convex lens, and the light-emitting surface of lens one is convex surface,The light-emitting surface of lens two is convex surface, and lens one and two surface of lens are coated with ultraviolet anti-reflection film, can improve light to greatest extentTransmissivity reduces light energy loss.
Optical filter 7 is provided in light uniforming device one, optical filter is long wave pass filter or short wave pass filter, needed for obtainingThe light for the wave band wanted, one selectable shape of light uniforming device are cuboid, and the upper and lower both sides inside light uniforming device one are symmetrically arranged withThe optical filter being in the shape of the letter V, when the shape of light uniforming device one is cuboid and wherein opposite two faces of light uniforming device one are square faceWhen, the light uniforming device one between its two opposite facing is internally provided with the inclined optical filter of a row, between optical filterIt is arranged in parallel, when the shape of light uniforming device one is square, it is provided with the optical filter in space X shape in light uniforming device one, threeThe light source of group different wave length can obtain the light of required wavelength band after optical filter, then converge to together, obtain againTo the spectrum with the higher wave band of solar spectrum matching degree, using above-mentioned three kinds of structures, by the light source of different-waveband with multiple battle arraysThe form of row is arranged, and can so that Spectral matching degree is high.
The operation principle of the utility model：Array of source group corresponds to the light source or LED core of three kinds of different colours wave bands respectivelyPiece, each array group are rearranged by the light source or LED chip of different-waveband, and wavelength band can reach 300nm to 1500nm,Solar spectrum all band is covered, when we need to export a specified sunlight spectrum, by this spectroscopic data input controlIn system, the number of switches and intensity of illumination of LED chip, the light that array of source group mixes are controlled by control systemAfter the even even light of optical arrays group, then by light uniforming device one, light uniforming device two is multiple and collimation lens set it is compound after be irradiated to workbenchFace, after the spectroscopic detector on table top receives light, detection obtains real time spectrum information and feeds back to control system, control systemSystem is compared the spectroscopic data of the spectral information received and needs in real time, and is arranged to array of source group and sent instruction, intoThe number of switches and intensity of illumination of one successive step array of source group so recycle, real-time adjusting and optimizing, and are finally reached and conform toThe sunlight spectrum asked.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is new not departing from this practicalityUnder the premise of type spirit and scope, the utility model also has various changes and modifications, these changes and improvements both fall within requirement and protectThe scope of the utility model of shield.