CN203384690U - LED spotlight source and material sorting device based on LED spotlight source - Google Patents
LED spotlight source and material sorting device based on LED spotlight source Download PDFInfo
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- CN203384690U CN203384690U CN201320382420.1U CN201320382420U CN203384690U CN 203384690 U CN203384690 U CN 203384690U CN 201320382420 U CN201320382420 U CN 201320382420U CN 203384690 U CN203384690 U CN 203384690U
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Abstract
The utility model provides an LED spotlight source applicable to photoelectric sorting. The LED spotlight source comprises an LED linear array, a fixing support, a light scattering and evening plate and a cylindrical spotlight lens, wherein the cylindrical spotlight lens is a plano-convex cylindrical lens, the LED linear array, the light scattering and evening plate and the cylindrical spotlight lens are parallelly fixed and mounted on the fixing support at certain intervals, the light scattering and evening plate is arranged between the LED linear array and the cylindrical spotlight lens, light emitted from the LED linear array is scattered through the light scattering and evening plate and is converged after permeating the cylindrical spotlight lens. The utility model further provides a material sorting device based on the LED spotlight source. The LED spotlight source and the material sorting device have the advantages that by controlling angle of emergent light of the LED spotlight source to enable the emergent light to converge, long-distance lighting can be realized, lighting luminance and evenness are guaranteed, and by the aid of the photoelectric sorting device, the distance from the LED spotlight source to a material detecting area can be enlarged, the problem that the surface of a glass window is sticky when existing sorting devices sort some materials is solved, and sorting accuracy is improved.
Description
Technical field
The utility model belongs to the photometric sorting technical field, relates in particular to a kind of LED condensation light source and the material sorting device based on the LED condensation light source.
Background technology
The photometric sorting application of installation is in agricultural product such as plurality of cereals, vegetables, dry fruit, tealeaves, marine product, and the sorting of the good and bad quality of the materials such as multiple plastics, industrial goods, can differentiate and eliminate the material of foreign matter, the different quality grades of sorting fast and effectively.
Main photometric sorting device is the photoelectric color screening device at present.While utilizing the photoelectric color screening device to carry out the sorting of material, mainly be based on different materials for the light absorption of a certain wave band and reflection differences and carry out the Division identification of material, the light source of employing is generally versicolor fluorescent tube, LED line source.
Because existing light source can't realize can also guaranteeing under the prerequisite of light source long distance illumination brightness and the uniformity of illumination, therefore, in order to guarantee that material is had to enough brightness of illuminations, the light source arrangement position is usually very near apart from material, wherein the about 180mm of a kind of typical layout distance.And, for dustproof, light source shines on material through glass window usually, this just causes windowpane nearer apart from the material distance.
Because glass window is very near apart from the material distance, in material, the mixtures such as the assorted dust of being with, grease are easy to the sticky glass surface that arrives, and are difficult for wiping, and can form blackening and stop passing through of illumination light and flashlight, affect sharpness of separation.Because glass window is very near apart from material, during the material material spring, also be easy to pound knock glass surface in addition, the long-term use, glass surface can form damage, affects sharpness of separation, and is difficult for changing, and causes extra cost.Simultaneously, because separation chamber's glass window is nearer apart from material, between two separation chamber, distance is little, and arranged nozzle, tracheae, dust removal brush, anti-jump baffle plate of device for eliminating etc. between two separation chamber, and therefore, space jam between two separation chamber, the material be scattered, foreign material etc. are easy to pile up therein, affect the running of dust removal brush, stop more illumination light and flashlight simultaneously, affect sharpness of separation and food hygiene.
The utility model content
One of technical problem to be solved in the utility model is to provide a kind of LED condensation light source that is applicable to photometric sorting equipment, when can realize the light source long distance illumination, guarantees brightness of illumination and uniformity.
Two of technical problem to be solved in the utility model is the problems that cause for above-mentioned existing lighting source, a kind of material sorting device based on above-mentioned LED optically focused is provided, can realize the light source long distance illumination, by light source distance detect material the distance increase to 300mm more than, and guarantee brightness of illumination and uniformity, solve that existing photometric sorting equipment optical chamber windowpane surface is sticky, near the problems such as space blocks up glass surface rapid wear, surveyed area.
The utility model is what one of to solve the problems of the technologies described above by the following technical solutions, a kind of LED condensation light source, comprise LED linear array (302), also comprise fixed support (301) and optically focused post lens (304), described optically focused post lens (304) are the plano-convex cylindrical lens, described LED linear array (302) and optically focused post lens (304) the parallel fixed support (301) that is fixedly installed in that keeps at a certain distance away is upper, light transmission optically focused post lens (304) post-concentration that LED linear array (302) is sent.
Preferably, described LED condensation light source also comprises the even tabula rasa of scattering (303), the even tabula rasa of scattering (303) is parallel to LED linear array (302) and optically focused post lens (304) are arranged between LED linear array (302) and optically focused post lens (304), and with LED linear array (302) and optically focused post lens (304), keep at a certain distance away respectively, the light that LED linear array (302) is sent, after the even tabula rasa of scattering (303) scattering, then sees through optically focused post lens (304) and assembles.
As further improved technical scheme, the top of described fixed support (301) is provided with the long strip type groove of upper shed, LED linear array (302) is fixedly mounted on the bottom surface of long strip type groove, the even tabula rasa of scattering (303) and optically focused post lens (304) are parallel is fixedly installed in the long strip type groove.
Further optimize, described fixed support (301) bottom is with fin.
Preferably, described optically focused post lens, material adopt PMMA, PC or PVC.
Preferably, employing PMMA, PC or the PVC of the even tabula rasa material of described scattering.
Preferably, in described LED linear array (302), adopt single power to be less than the low-power LED of 0.5W.
Preferably, the width D of described optically focused post lens (304) is between 33mm between 36mm, and the radius R of the curved surface of optically focused post lens (304) is greater than 16.5mm.
Preferably, the radius R of the curved surface of described optically focused post lens (304) is got 18mm between 22mm.
Preferably, the distance that defines the even tabula rasa of described scattering (303) and optically focused post lens (304) is d1, and the distance of the even tabula rasa of scattering (303) and LED linear array (302) is d2, and d1+d2 is less than the focal length of optically focused post lens (304).
Preferably, d1 and d2 are between 14mm and 16mm.
The utility model be solve the problems of the technologies described above by the following technical solutions two, a kind of material sorting device of the LED condensation light source based on above-mentioned, comprise feeding vibrator (1), passage (2), checkout equipment, control system (5) and device for eliminating (6), the front and back sides for the treatment of sorting material respectively has a set of checkout equipment, every cover checkout equipment comprises described LED condensation light source (3), photoelectric sensing equipment (4) and Background apparatus (7), until sorting material via admission passage (2) after feeding vibrator (1), stream is through the surveyed area of photoelectric sensing equipment (4) subsequently, photoelectric sensing equipment (4) gathers its image, and pass to control system (5), control system (5) is controlled device for eliminating (6) and is sent the rejecting instruction, every cover checkout equipment and treat between sorting material to be equipped with glass window (10).
Optimize, LED condensation light source distance treats that the distance of sorting material is 300mm-600mm, and the distance between two glass windows (10) is 600mm-1200mm.
Preferably, the LED that the LED adopted in LED condensation light source (3) is white light LEDs, ultraviolet LED, infrared LED and various wave band colors.
Preferably, while adopting relatively high power LED condensation light source (3) illumination, adopt air-cooled or water-cooling heat radiating device.
Preferably, for not adopting radiator fan, dispelled the heat, cost-saving, the LED power of employing is less than 0.5W, and its fixing base is with fin.
Preferably, the glass window of employing (10) material is white glass.For ultraviolet LED, for guaranteeing ultraviolet light transmission, preferably, glass window (10) material adopting quartz glass.
The utility model has the advantage of: LED condensation light source of the present utility model, make its convergence by the angle of controlling its emergent light, can realize longer-distance illumination, guarantee brightness of illumination and uniformity simultaneously, the photometric sorting device based on the LED condensation light source that the utility model provides, can zoom out the distance of LED condensation light source apart from the material surveyed area, solve existing screening installation sorting oiliness material, with the material of a large amount of dust etc., cause the sticky problem in glass window surface, improve sharpness of separation; Reduce material the colliding with of glass window surface simultaneously, extend glass window service life, Cost reduction; More space is provided in addition, reduces the accumulation of be scattered material, impurity, improve sharpness of separation and food sanitation safe.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of an embodiment of the material sorting device based on the LED condensation light source that provides of the utility model;
Fig. 2 is the schematic diagram of another embodiment of the material sorting device based on the LED condensation light source that provides of the utility model;
Fig. 3 be in the utility model embodiment based on LED condensation light source structural representation in LED optically focused material sorting device.Wherein Fig. 3 a is post lens light gathering device side schematic view, and Fig. 3 b is post lens light gathering device schematic cross-section.
Fig. 4 is that the utility model embodiment center pillar lens light gathering device illumination light is tyrannical to distributing with beam condensing unit parameter variation test data of experiment figure.Wherein, Fig. 4 a is LED condensation light source transverse intensity distribution of light beam figure, has only taken the parts transversely light distribution, and Fig. 4 b is horizontal uniformity schematic diagram under different d1, d2 condition.
Fig. 5 is that the utility model embodiment center pillar lens light gathering device illumination light intensity vertically distributes and changes test data of experiment figure with the beam condensing unit parameter.Wherein Fig. 5 a is the LED condensation light source at illumination patterns figure longitudinally, and Fig. 5 b is uniformity schematic diagram longitudinally under different d1, d2 condition.
Fig. 6 is the variation test data of experiment figure of the utility model embodiment center pillar lens light gathering device ZhaoMing Center maximal illumination with parameter.
Fig. 7 be in the utility model embodiment based in LED optically focused material sorting device another based on snoot optically focused mode structural representation.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Fig. 1 shows the embodiment schematic diagram based on LED condensation light source material sorting device that the utility model provides.As shown in Figure 1, should the material sorting device based on the LED condensation light source be chute type, wherein 1 is the feeding vibrator, enters slideway 2 after sorting material is via feeding vibrator 1, because Action of Gravity Field forms the surveyed area of individual layer material flow through photoelectric sensing equipment 4.The front and back sides for the treatment of sorting material respectively has a set of checkout equipment, and every cover checkout equipment comprises LED condensation light source 3, photoelectric sensing equipment 4 and Background apparatus 7.The surveyed area of photoelectric sensing equipment 4 is positioned at the vicinity, lower end of slideway 2.Photoelectric sensing equipment 4, preferably, comprise imaging lens and photoelectric sensor, and the former is for imaging, and the latter is for transferring optical signal to the signal of telecommunication.Wherein photoelectric sensor can be colored three linear array photoelectric sensors or 3CCD photoelectric sensor or single line battle array gray-level light electric transducer, according to different demands and accuracy of identification, selects different photoelectric sensors.LED condensation light source 3 is for illuminating the material in the zone to be detected of flowing through, wherein, preferably, the LED that the LED adopted is white light LEDs, ultraviolet LED, infrared LED and various wave band colors, the spectral characteristic of the selective basis material scattered light that it is concrete and determining, select to distinguish the light source that needs sorting material, comprise the LED of absorption spectrum difference maximum wavelength light.Glass window 10 is arranged on every cover checkout equipment and treats between sorting material, for dustproof, prevents dust or the chip that splashes is attached to photoelectric sensing equipment 4 and LED condensation light source 3 surfaces, affects sharpness of separation.Take into account cost and optical transmission performance, during visible light wave range LED illumination, glass window 10 materials adopt white glass, glass window 10 material adopting quartz glass during ultraviolet band LED illumination.Be typically provided with the automatic dust removing brush on glass window 10 surfaces, in the present embodiment, because the distance between glass window 10 is larger, glass window 10 surface attachment dusts are few, and between glass window 10, operating space is large, also can manually wipe dust.In this device owing to having adopted LED condensation light source 3, make its convergence by the angle of controlling emergent light, can realize longer-distance illumination, guarantee brightness of illumination and uniformity simultaneously, thereby increased distance between two glass windows 10, a kind of typical parameter: distance increases to 800mm by original 300mm, thereby has solved existing screening installation sorting oiliness material, with the material of a large amount of dust etc., cause the sticky problem of window surface, improves sharpness of separation; Reduce material the colliding with of window surface simultaneously, extend window service life, Cost reduction; More space is provided in addition, reduces the accumulation of be scattered material, impurity, improve sharpness of separation and food sanitation safe.Background apparatus 7 needs the edge of material separating for identification, to guarantee without material through when zone to be detected, device for eliminating can not start and take out of and need to retain material.At material different in Fig. 18 and 9 after the surveyed area of photoelectric sensing equipment 4, photoelectric sensing equipment 4 gathers its image, and pass to control system 5, its image preserved in control system 5 records, to wherein single file or multirow image adopt certain algorithm to be differentiated, as it retains material for needing, control device 5 does not send the rejecting instruction to device for eliminating 6; Otherwise 6 pairs of device for eliminating of notice need material separating to be rejected.It should be noted that; the structural representation provided in the present embodiment is only a kind of typical chute type double-chamber structure; in practice according to different material characteristics; can adopt single cell structure, sandwich construction, transmission detection mode etc., the scheme that adopts therein the mode of optically focused to increase detection position and glass window 10 distances all should be considered as protection domain of the present utility model.
Fig. 2 shows another embodiment schematic diagram based on LED condensation light source material sorting device that the utility model provides.As shown in Figure 2, should the material sorting device based on the LED condensation light source be crawler type, material to be detected enters and transmits on crawler belt 11 via feeding vibrator 1, transmits crawler belt 11 material individual layer to be detected is sent to zone to be detected, and LED condensation light source 3 shines the surface of regional material to be detected.Owing to having adopted condensation light source, the distance of glass window 10 and surveyed area increases greatly.Background apparatus 7 needs the edge of material separating for identification, to guarantee without material through when zone to be detected, device for eliminating can not start and take out of and need to retain material.Photoelectric sensing equipment 4 is for the acquisition testing region image signal, its image preserved in control system 5 records, to wherein single file or multirow image, adopt certain algorithm to be differentiated, as it retains material for needing, control system 5 is not sent the rejecting instruction to device for eliminating 6; Otherwise 6 pairs of device for eliminating of notice need material separating to be rejected.It should be noted that; what provide in this embodiment is the tracked machine structure of the two chambers of a kind of typical individual layer; in practice according to different material characteristics; can adopt single cell structure, sandwich construction, transmission detection mode etc., the scheme that adopts therein the mode of optically focused to increase detection position and window distance all should be considered as protection domain of the present utility model.
Adopt a kind of structure of LED condensation light source in embodiment based on LED condensation light source material sorting device shown in Fig. 1, Fig. 2, as Fig. 3, the side schematic view that wherein Fig. 3 a is LED condensation light source 3, and analyse and observe side, this LED condensation light source 3 comprises fixed support 301, LED linear array 302, the scattering even tabula rasa 303 of bottom with fin, and optically focused post lens 304.Described optically focused post lens 304 are planoconvex spotlight, the plane of incidence that plane is LED condensation light source 3.The top of described fixed support 301 is provided with the long strip type groove of upper shed, described LED linear array 302, the even tabula rasa 303 of scattering and optically focused post lens 304 parallel being fixedly installed in the long strip type groove that keep at a certain distance away successively, LED linear array 302 is fixedly mounted on the bottom surface of long strip type groove.The light that LED linear array 302 is sent, after even tabula rasa 303 scatterings of scattering, then sees through optically focused post lens 304 and assembles.
For guaranteeing uniformity and the outgoing uniformity of light of light source, but support 301 die sinkings drawings, and light source stability, with fin, for the LED heat radiation, is improved in its bottom.
The even tabula rasa 303 of scattering, for improving the horizontal and vertical uniformity of light source, suppresses the slight dispersion of LED on irradiating angle.For some to the light source uniformity requirement the not high sorting material for the treatment of, the even tabula rasa 303 of scattering can not need to install.
Optically focused post lens 304, even tabula rasa 303 materials of scattering preferably adopt PMMA, PC or PVC.Wherein to have a light transmission high for PMMA, and the high temperature resistant excellent properties that waits, be the optimum Material Used of the present embodiment.Because optically focused post lens 304 and even tabula rasa 303 materials of scattering have different transmissison characteristics to different wave bands, need select suitable material according to different LED light sources.Preferably, in LED linear array 302, adopt low-power LED, single LEDs power is less than 0.5W, guarantees in sorting unit without special-purpose water-cooled or air cooling equipment, cost-saving, alleviates design difficulty.As need adopt the high-power LED illumination, need in sorting unit, add water-cooled or air cooler.
Fig. 3 b is post lens light gathering device schematic cross-section.Shown in Fig. 3 b, the even tabula rasa 303 of scattering and optically focused post lens 304 apart from d1, the even tabula rasa 303 of scattering and LED linear array 302, apart from d2, be two important parameter.
In photometric sorting, there is certain requirement in many materials to intensity, the uniformity of illumination, below the parameter that is applicable to being applied to the LED condensation light source 3 in the photometric sorting device are carried out to detailed analytic explanation.Light emission angle by the known LED of distribution curve flux of LED is about centrosymmetric 120 degree usually, in order to allow optically focused post lens 304 collect light as much as possible, assemble, the angle that optically focused post lens 304 widths open LED will surpass 120 degree, this can cause optically focused post lens 304 wide, layout inconvenience in screening installation.Preferably, the width D of the optically focused post lens 304 in the long strip type groove that adopt in design, is taken into account the size of optically focused post lens 304 and receives luminous energy power between 36mm between 33mm.Preferably can be by the front interpolation lenslet of LED linear array 302, controlling its divergence of beam angle.Due to D between 33mm between 36mm, obviously in the plano-convex optically focused post lens 304 that adopt, the radius R of the curved surface of optically focused post lens 304 need be greater than D/2, and on the receipts luminous energy power of optically focused post lens 304 (angle that post lens width direction is opened LED) and light source space volume, require d1+d2 unsuitable excessive, calculate known d1+d2 and be less than optically focused post lens 304 focal lengths, during the radius of this curved surface, R is less, and the light gathering of optically focused post lens 304 is stronger, and R gets 18mm between 22mm.
Under above parameter, customized the even tabula rasa 303 of scattering and optically focused post lens 304, different d1, the d2 of experiment test is on the intensity of LED condensation light source 3, inhomogeneity impact.
In experiment, the distance of the white screen of LED condensation light source 3 distance is 500mm, by the colour plane array camera, takes the illumination patterns on white screen, tests photocurrent versus light intensity under various parameters.The performance parameter of test comprises: horizontal homogeneity, longitudinal uniformity, maximal illumination.Wherein horizontal homogeneity is the uniformity of LED condensation light source 3 at length direction, and longitudinal uniformity is the uniformity of LED condensation light source 3 in narrow degree direction.The test result that Fig. 4 is horizontal homogeneity: in the middle of can finding out LED condensation light source 3 transverse intensity distribution of light beams by Fig. 4 a, high both sides are low (because CCD takes the width restriction, only taken the parts transversely light distribution, corresponding LED condensation light source center, peak place), the edge shadow cover part is too low because light intensity descends, and usually can not use.In test when light intensity drop to strength, center 20% the time, think unavailable.Horizontal uniformity under different d1, d2 condition has been shown in Fig. 4 b, wherein abscissa be the even tabula rasa 303 of scattering and LED linear array 302 apart from d2, ordinate is the descend distance of 20% place and LED condensation light source 3 end points, the i.e. reserved length of the single-ended need of LED condensation light source of horizontal light intensity.Not the isolabeling correspondence the even tabula rasa 303 of different scatterings and optically focused post lens 304 apart from d1.As can be seen from the figure the distance of the even tabula rasa 303 of scattering and optically focused post lens 304 becomes large, and uniformity improves; Astigmatism plate and LED are apart from becoming large, and uniformity improves.Vertically (narrow to) inhomogeneity test result that Fig. 5 is LED condensation light source 3.By Fig. 5 a can find out LED condensation light source 3 narrow to illumination patterns substantially be parabola shaped, on center line, high both sides are low, think that in reality test descend from alignment both sides, the center zone of 10% correspondence is Free Region, is shade overlay area in Fig. 5 a.In Fig. 5 b, the curve meaning of abscissa, non-isolabeling is the same, and ordinate is the rgb value available width under 10% standard that descends.From Fig. 5 b, can find out: the even tabula rasa 303 of scattering and optically focused post lens 304 become large apart from d1, the longitudinal uniformity variation; Becoming greatly apart from d2 of the even tabula rasa 303 of scattering and LED linear array 302, longitudinal uniformity changes little.Thereby the even tabula rasa 303 of scattering and optically focused post lens 304 need choose a suitable value apart from d1, when d1 becomes large, horizontal homogeneity improves, but the longitudinal uniformity variation.Centered by Fig. 6, the strongest illumination is with the variation of d1, d2, and the mark implication of abscissa, different curves is the same, and ordinate is the strongest illumination in lighting source center, adopts the illumination photometer test.For the same curve, have the strongest illumination as can be seen from Figure 6, the even tabula rasa 303 of scattering and optically focused post lens 304 apart from d1 larger (the closer to image-forming condition), the strongest illumination is larger.Consider above test result, preferably, selected parameter is as follows: d1 and d2 are between 14mm and 16mm.
With this understanding, it be 170mm that LED condensation light source 3 laterally needs vacant single sided illumination length, and vertically light intensity descends 10% the time, and corresponding illumination width is 27mm, and has higher brightness of illumination.
The another kind of reflection concentration type structure of the LED condensation light source 3 adopted in the embodiment based on LED condensation light source material sorting device shown in Fig. 1, Fig. 2 as shown in Figure 7.In this embodiment, LED condensation light source 3 comprises focused lamp cover 311 and LED linear array 312, focused lamp cover 311 inner surfaces that adopt are minute surface, inner surface configuration is parabolic cylinder or elliptic cylinder, for preventing LED linear array 312 self stopping the light after focused lamp cover 311 reflections, the substrate of fixed L ED linear array 312 should adopt as far as possible little width, the light deflection that LED linear array 312 is sent shines on focused lamp cover 311, and light is assembled and shone on material surface 313 through the reflection of the inner surface of focused lamp cover 311.Owing to being difficult to add large fin, can only adopt low power LED, or it is cooling to adopt air-cooled mode to carry out in this kind of structure.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a LED condensation light source, comprise LED linear array (302), it is characterized in that: also comprise fixed support (301) and optically focused post lens (304), described optically focused post lens (304) are planoconvex spotlight, described LED linear array (302) and optically focused post lens (304) the parallel fixed support (301) that is fixedly installed in that keeps at a certain distance away is upper, light transmission optically focused post lens (304) post-concentration that LED linear array (302) is sent.
2. LED condensation light source as claimed in claim 1, it is characterized in that: described LED condensation light source also comprises the even tabula rasa of scattering (303), the even tabula rasa of scattering (303) is parallel to LED linear array (302) and optically focused post lens (304) are arranged between LED linear array (302) and optically focused post lens (304), and with LED linear array (302) and optically focused post lens (304), keep at a certain distance away respectively, the light that LED linear array (302) is sent, after the even tabula rasa of scattering (303) scattering, then sees through optically focused post lens (304) and assembles.
3. LED condensation light source as claimed in claim 2, it is characterized in that: the top of described fixed support (301) is provided with the long strip type groove of upper shed, LED linear array (302) is fixedly mounted on the bottom surface of long strip type groove, the even tabula rasa of scattering (303) and optically focused post lens (304) are parallel is fixedly installed in the long strip type groove.
4. LED condensation light source as claimed in claim 1, is characterized in that: in described LED linear array (302), adopt single power to be less than the low-power LED of 0.5W.
5. LED condensation light source as claimed in claim 2, it is characterized in that: the width D of described optically focused post lens (304) is between 33mm between 36mm, and the radius R of the curved surface of optically focused post lens (304) is greater than 16.5mm.
6. LED condensation light source as claimed in claim 5, it is characterized in that: the radius R of the curved surface of described optically focused post lens (304) is got 18mm between 22mm.
7. LED condensation light source as described as claim 5 or 6, it is characterized in that: the distance that defines the even tabula rasa of described scattering (303) and optically focused post lens (304) is d1, the distance of the even tabula rasa of scattering (303) and LED linear array (302) is d2, and d1+d2 is less than the focal length of optically focused post lens (304).
8. LED condensation light source as claimed in claim 7, it is characterized in that: d1 and d2 are between 14mm and 16mm.
9. the material sorting device based on LED condensation light source as described as claim 1 to 18 any one, comprise feeding vibrator (1), passage (2), checkout equipment, control system (5) and device for eliminating (6), the front and back sides for the treatment of sorting material respectively has a set of checkout equipment, every cover checkout equipment comprises described LED condensation light source (3), photoelectric sensing equipment (4) and Background apparatus (7), until sorting material via admission passage (2) after feeding vibrator (1), stream is through the surveyed area of photoelectric sensing equipment (4) subsequently, photoelectric sensing equipment (4) gathers its image, and pass to control system (5), control system (5) is controlled device for eliminating (6) and is sent the rejecting instruction, every cover checkout equipment and treat between sorting material to be equipped with glass window (10).
10. the material sorting device based on the LED condensation light source as claimed in claim 9 is characterized in that: LED condensation light source distance treats that the distance of sorting material is 300mm-600mm, and the distance between two glass windows (10) is 600mm-1200mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320382420.1U CN203384690U (en) | 2013-06-28 | 2013-06-28 | LED spotlight source and material sorting device based on LED spotlight source |
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| CN201320382420.1U CN203384690U (en) | 2013-06-28 | 2013-06-28 | LED spotlight source and material sorting device based on LED spotlight source |
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| CN203384690U true CN203384690U (en) | 2014-01-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307492A (en) * | 2013-06-28 | 2013-09-18 | 合肥美亚光电技术股份有限公司 | LED condensation light source and material sorting device based on same |
| CN109488893A (en) * | 2018-09-28 | 2019-03-19 | 中山市佰利纳照明电器有限公司 | The Linear lamp that sheen and optically focused can be changed |
| CN109630912A (en) * | 2019-02-27 | 2019-04-16 | 合刃科技（武汉）有限公司 | Lighting device, machine vision equipment and illumination adjustments method |
| CN109821780A (en) * | 2019-03-28 | 2019-05-31 | 湖北采花茶业有限公司 | Dynamic tea extraction system |
-
2013
- 2013-06-28 CN CN201320382420.1U patent/CN203384690U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307492A (en) * | 2013-06-28 | 2013-09-18 | 合肥美亚光电技术股份有限公司 | LED condensation light source and material sorting device based on same |
| CN103307492B (en) * | 2013-06-28 | 2016-03-23 | 合肥美亚光电技术股份有限公司 | LED condensation light source and the material sorting device based on this LED condensation light source |
| CN109488893A (en) * | 2018-09-28 | 2019-03-19 | 中山市佰利纳照明电器有限公司 | The Linear lamp that sheen and optically focused can be changed |
| CN109630912A (en) * | 2019-02-27 | 2019-04-16 | 合刃科技（武汉）有限公司 | Lighting device, machine vision equipment and illumination adjustments method |
| CN109821780A (en) * | 2019-03-28 | 2019-05-31 | 湖北采花茶业有限公司 | Dynamic tea extraction system |
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