CN203784766U - Solar simulator - Google Patents

Abstract

The utility model relates to a solar simulator. The solar simulator comprises a long modulator tube, a lampshade and a light uniformizing unit, wherein the lampshade is curved towards the long modulator tube to form a two-dimensional C-shaped paraboloid; the lampshade defines a focal length line; the long modulator tube is arranged along the focal length line; the C-shaped paraboloid is provided with an opening; the long modulator tube is surrounded by the lampshade in the opening; an optical axis is defined by the long modulator tube towards the opening; the optical axis is vertical to the focal length line; the light uniformizing unit is arranged on the optical axis; the light rays which are emitted by the long modulator tube and the light rays which are reflected by the lampshade pass the light uniformizing unit, the light rays are uniformly projected. By means of the innovative structure, the lampshade is the two-dimensional C-shaped paraboloid, the extension range of the lampshade covers most surrounding area of the long modulator tube, the light rays of the long modulator tube are effectively forwards reflected, the number of elements is reduced due to the design of the lampshade, the optical curvature adjustment design is very easy, an optimized light ray reflecting effect is reached, and the light rays are uniformly projected.

Description

Solar simulator

Technical field

The utility model relates to a kind of simulator of light, refers to especially a kind of solar simulator that can send sunshine spectrum.

Technical background

Known solar simulator can penetrate the light that approaches sunshine spectrum by simulation hair, can be applicable to the detection of the electrical and conversion efficiency of solar cell.Consulting Fig. 1, is the known solar simulator of one, mainly comprises a light source 11, a lampshade 12, and a figure does not show and for making light equal light unit uniformly.This light source 11 is bulb-type and for spot light, the aspherical mirror that 12, this lampshade is three-dimensional shape, be centered around this light source 11 up and down around, with by the light of this light source 11 towards front-reflection.Except adopting above-mentioned bulb-type light source, the light source of another known solar simulator adopts elongated fluorescent tube, example No. 6548819 Patent Cases of US Patent No. as shown in Figure 2, its structure mainly comprises: several light sources 13, several level crossing 14, and several spectral filtering sheet 15.These light sources 13 are respectively an elongated fluorescent tube, and by these level crossing 14 reflection rays.But when several level crossing 14 is set, angle between each level crossing 14 must coordinate just can reach optimization reflection ray effect, cause on adjusting and bother, so also cause the light uniformity on shadow surface to be difficult for adjusting, easily make the light uniformity of shadow surface not good; In addition, several level crossings 14 being set also makes number of elements simplify not.

Utility model content

Therefore, the purpose of this utility model, is providing a kind of structure innovation, the light uniformity is good, element is simplified solar simulator.

So the utility model solar simulator, comprises: an elongated fluorescent tube, a lampshade, and equal light unit.

This lampshade is bent to form two-dimentional C type parabola towards this elongated fluorescent tube, this lampshade limits an its focal lines, this elongated fluorescent tube arranges along this its focal lines, this C type parabola has an opening, this elongated fluorescent tube by this lampshade in this opening, limit an optical axis by this elongated fluorescent tube towards this opening, this optical axis is vertical with this its focal lines.This is all arranged on this optical axis light unit, make the light that this elongated fluorescent tube sends and passed through by the light of this lampshade reflection, and by equalizing light rays project.

Effect of the present utility model: by above-mentioned innovation structure, this lampshade is two-dimentional C type parabola, and its expanded range can contain this elongated fluorescent tube most of area around, can be effectively by the light of this elongated fluorescent tube to front-reflection.And the design of this lampshade can simplify number of elements, also comparatively easy carry out optical curvature adjusted design time, can reach optimized reflection ray effect, light is evenly projected.

Brief description of the drawings

Other feature and effect of the present utility model, will be in clearly presenting with reference in graphic embodiment, wherein:

Fig. 1 is a kind of stereogram of subelement of known solar simulator;

Fig. 2 is the schematic side view of another kind of known solar simulator;

Fig. 3 is the rear perspective exploded view of one first preferred embodiment of the utility model solar simulator;

Fig. 4 is the schematic side view of this first preferred embodiment; And

Fig. 5 is the schematic side view of one second preferred embodiment of the utility model solar simulator.

[reference numeral explanation]

2 elongated fluorescent tubes

3 lampshades

30 openings

31 first cover portions

32 second cover portions

33 reflectings surface

34 connecting portions

4 equal light unit

41 fly eye lens

411 lens units

5 adjust plate

51 plate bodies

52 shielding portions

521 lattice points

6 collector lenses

7 adjust film

71 membrane bodies

72 shielding portions

721 lattice points

81 its focal lines

L optical axis.

Detailed description of the invention

Before the utility model is described in detail, should be noted that in the following description content, similarly element is to represent with identical numbering.

Consult Fig. 3,4, the first preferred embodiment of the utility model solar simulator comprises: an elongated fluorescent tube 2, a lampshade 3, all light unit 4, are adjusted plate 5, and a collector lens 6.In following description, the direction taking this elongated fluorescent tube 2 toward this adjustment plate 5 is as front, that is the direction of advance of overall light is front.

This elongated fluorescent tube 2 extends axially and is elongated tubular, and it is a kind of arc lamp, is mainly in argon or neon, to excite mercury vapor by electric power, starches and send short wave ultraviolet to produce electricity, and ultraviolet ray sends visible ray with illumination after being absorbed by the phosphorus in fluorescent tube.In this elongated fluorescent tube 2, be provided with stabilizer and starter that figure does not show, can coordinate and produce instantaneous pressure and by gas ionization, can make this elongated fluorescent tube 2 light fast luminous by this instantaneous high-energy.Lamp arc (Lamp Arc the refers to fluorescent tube positive and negative electrode distance) length of this elongated fluorescent tube 2 is greater than 20mm, preferably can be 50mm ~ 2000mm.

This lampshade 3 is formed in one, and is bent to form two-dimentional C type parabola towards this elongated fluorescent tube 2, and this C type parabola has an opening 30.This lampshade 3 limits an its focal lines 81, the bearing of trend of parallel this elongated fluorescent tube 2 of bearing of trend of this its focal lines 81.This elongated fluorescent tube 2, and is arranged along this its focal lines 81 by this lampshade 3 in this opening 30, and the light that so makes this elongated fluorescent tube 2 send and reflected by this lampshade 3 can be parallel rays and penetrate.Limit an optical axis L by this elongated fluorescent tube 2 towards this opening 30, this optical axis L is vertical with this its focal lines 81, and this optical axis L is the optical axis of the whole optical system of this solar simulator of the utility model.And the paraboloidal several focuses of C type that this its focal lines 81 is this lampshade 3 is online.This lampshade 3 comprises that one extends the first cover portion 31 of these elongated fluorescent tube 2 tops, and one is connected and extends the second cover portion 32 of these elongated fluorescent tube 2 belows with these the first cover portion 31 one.This second cover portion 32 is positioned at the side of this elongated fluorescent tube 2 in contrast to this opening 30 with a junction position 34 of this first cover portion 31.This first cover portion 31 jointly defines one with this second cover portion 32 and can reflect the light of this elongated fluorescent tube 2 and be paraboloidal reflecting surface 33, and these are different from traditional three-dimensional lampshade (as the lampshade 12 of Fig. 1).

This is all disposed on this elongated fluorescent tube 2 front sides along this optical axis L in light unit 4, can make the light that this elongated fluorescent tube 2 sends and passed through by the light that this lampshade 3 reflects, and by equalizing light rays project.This all comprises the fly eye lens (Fly-Eye Lens) 41 that two front and back arrange and can pass through for the light of this elongated fluorescent tube 2 in light unit 4, each fly eye lens 41 has several lens units 411 that array type is arranged that are, each lens unit 411 is equivalent to a lenslet, and therefore each fly eye lens 41 is actually the lenslet of being arranged by several array types and is formed.

These fly eye lens 41 at this by close this elongated fluorescent tube 2 are called first fly eye lens 41, and are called second fly eye lens 41 away from these fly eye lens 41 of this elongated fluorescent tube 2.When the light of this elongated fluorescent tube 2 is by this all when light unit 4, these first fly eye lens 41 can be divided into several light pencil light by the whole angle pencil of ray light of light source by its several lens units 411, and each light pencil light can be subject to other light pencil light compensation with its position symmetry, thereby can improve the light uniformity; Then light is subject to the correction and rear this collector lens 6 that passes through of compensation of these second fly eye lens 41 again.

Therefore, generally speaking this all, can make to form several light pencil light by light in light unit 4, and by symmetry overlap and light compensation, reach the effect that promotes the light uniformity and brightness.The utility model this all the structure of light unit 4 be not limited to the present embodiment for example, as long as because can, by evenly other equivalent structure of projection of light, all can be used as this all light unit 4.

Supplementary notes, front surface and the rear surface of each fly eye lens 41 of the present embodiment all have curvature, are also double-side curvature.But while enforcement, each fly eye lens 41 can be also one side curvature, that is a wherein surface of each fly eye lens 41 is curvature surface, and another surface can be plane; If when one side curvature, the curvature surface of these first fly eye lens 41 is towards this elongated fluorescent tube 2, and the curvature surface of these second fly eye lens 41 is towards this collector lens 6.

This adjustment plate 5 is also arranged in this optical axis L, and at this elongated fluorescent tube 2 and this is all between light unit 4.This adjustment plate 5 comprises the plate body 51 of a light-permeable, and one is positioned on this plate body 51 and shielding portion 52 that can shield lights.The shielding portion 52 of the present embodiment comprises several lattice points 521, and this shielding portion 52 can utilize mode of printing or the mode such as coat, plate, stick is formed at this plate body 51 surfaces.

This collector lens 6 is positioned in this optical axis L, and is arranged on this all 4 front sides, light unit.For example convex lens of this collector lens 6, the present embodiment is a planoconvex spotlight, and has spotlight effect, can be by by this light optically focused that all light unit 4 comes.

When the utility model uses, directly this adjustment plate of directive 5 and this equal light unit 4 forward of the part light of this elongated fluorescent tube 2, part light is subject to after reflecting surface 33 reflections of this lampshade 3 this adjustment plate 5 of directive and equal light unit 4 again.Then, light can be subject to this all optical effect of light unit 4 and this collector lens 6, and then on the being tested surface of the object to be measured that do not show of Yu Yitu, forms evenly and the illumination projection light of high brightness.And the light shape pattern of projection light depends on this all profile of light unit 4, for example, this is when all the profile of light unit 4 is square, and the light shape finally projecting is square.

What remark additionally is, the effect of this adjustment plate 5 is to promote the light uniformity, it is mainly the light throughput that reduces correspondence position by the lattice point 521 on this adjustment plate 5, to avoid the having brighter problem of local light on this being tested surface, therefore, the position of lattice point 521 is corresponding to position brighter on being tested surface, and described brighter position is conventionally corresponding to the center position of each lens unit 411.Actual use upper, can be first in the situation that not being provided with this adjustment plate 5, detect the uniformity of illuminance on this being tested surface, and can learn thus which the position illumination on this being tested surface is larger, the light of those positions need to be blocked a little; Can prepare multi-disc and adjust plate 5, each design of blocking of adjusting on plate 5 can be different, therefore now can select the adjustment plate 5 that blocks location-appropriate to be placed in this all between light unit 4 and this elongated fluorescent tube 2, can block compared with the light of highlights position, thereby make projection light even intensity, the uniform-illumination on this being tested surface.

In sum, be two-dimentional C type parabolic shape by this lampshade 3, and the expanded range of this lampshade 3 is contained top, below and the rear of this elongated fluorescent tube 2, can contain this elongated fluorescent tube 2 most of area around, and then can be effectively by the light of this elongated fluorescent tube 2 to front-reflection.And these lampshade 3 designs can be simplified number of elements, also comparatively easy while carrying out optical curvature adjusted design, can reach optimized reflection ray effect, light is evenly projected, therefore the utility model reaches the purpose of this utility model by above-mentioned innovation structure really.

Consult Fig. 5, the second preferred embodiment of the utility model solar simulator, roughly the same with the structure of this first preferred embodiment, different places are: the present embodiment is the adjustment plate that replaces this first preferred embodiment with an adjustment film 7.The adjustment film 7 of the present embodiment is positioned at this, and all light unit 4 is upper near these fly eye lens 41 surfaces of this elongated fluorescent tube 2, and towards this elongated fluorescent tube 2.This adjustment film 7 comprises the membrane body 71 of a light-permeable, and one be positioned on this membrane body 71 and can cover this all local shielding portion 72 of light unit 4, this shielding portion 72 has several lattice points that can be used for shutting out the light 721, and this shielding portion 72 can utilize mode of printing to be formed on this membrane body 71.

This adjustment film 7 can utilize attaching mode to be formed on this fly eye lens 41 surfaces.Or, can be near these fly eye lens 41 surfaces of this elongated fluorescent tube 2, directly utilize the mode such as plated film or coating to form to have the shielding portion 72 of several lattice points 721, can suitably shut out the light so equally, promote the light uniformity.

Foregoing, it is only preferred embodiment of the present utility model, but can not limit the scope that the utility model is implemented with this, the simple equivalence of generally doing according to the utility model claims and patent specification content changes and modifies, and all still belongs in the scope that the utility model patent contains.

Claims (7)

1. a solar simulator, comprises:

One elongated fluorescent tube;

One lampshade, be bent to form two-dimentional C type parabola towards this elongated fluorescent tube, this lampshade limits an its focal lines, this elongated fluorescent tube arranges along this its focal lines, this C type parabola has an opening, this elongated fluorescent tube in this opening, is limited an optical axis by this elongated fluorescent tube towards this opening by this lampshade, and this optical axis is vertical with this its focal lines; And

One equal light unit, is arranged on this optical axis, make the light that this elongated fluorescent tube sends and passed through by the light of this lampshade reflection, and by equalizing light rays project.

2. solar simulator as claimed in claim 1, is characterized in that, this lampshade is formed in one.

3. solar simulator as claimed in claim 1, it is characterized in that, also comprise one at all adjustment plates between light unit of this elongated fluorescent tube and this, this adjustment plate comprises the plate body of a light-permeable, and one is positioned on this plate body and shielding portion that can shield lights.

4. solar simulator as claimed in claim 1, is characterized in that, also comprises one and is positioned at this all light cell surface and adjustment film towards this elongated fluorescent tube, and this adjustment film comprises that one can block this all shielding portion of the local and energy shield lights of light unit.

5. the solar simulator as described in any one in claim 1 to 4, it is characterized in that, this all comprises the fly eye lens that two front and back arrange and can pass through for the light of this elongated fluorescent tube in light unit, and each fly eye lens has several lens units that array type is arranged that are.

6. solar simulator as claimed in claim 5, is characterized in that, also comprises one and is arranged on this all front side, light unit collector lens that can optically focused.

7. solar simulator as claimed in claim 1, it is characterized in that, this lampshade comprises that one extends the first cover portion of this elongated fluorescent tube top, and a second cover portion that is connected and extends this elongated fluorescent tube below with this first cover portion one, this first cover portion and this second cover portion jointly define one and can reflect the light of this elongated fluorescent tube and be paraboloidal reflecting surface.