CN203798537U - LED light source array projection testing device - Google Patents
LED light source array projection testing device Download PDFInfo
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- CN203798537U CN203798537U CN201420096830.4U CN201420096830U CN203798537U CN 203798537 U CN203798537 U CN 203798537U CN 201420096830 U CN201420096830 U CN 201420096830U CN 203798537 U CN203798537 U CN 203798537U
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Abstract
The utility model provides an LED light source array projection testing device, which comprises a beam expanding element, a projection element and a projection surface, wherein the beam expanding element is arranged at a rear end of a light path of a tested LED light source array; the projection element is arranged at the rear end of a light path of the beam expanding element; the projection surface is arranged at a rear end of a light path of the projection element; light beams emitted by the tested LED light source array are projected to the projection surface by the projection element after being subjected to beam expansion and amplification via the beam expanding element, and single LED light sources in the LED light source array correspond to positions on the projection surface. The LED light source array projection testing device can present a light source dot matrix module on any plane in a manner similar to projection just by using a lens and a reflector, faulty dots can be quickly found through visual inspection, the device is simple in structure, the testing procedure is convenient and fast, and the cost is low.
Description
Technical field
The utility model relates to illumination and demonstration field, relates in particular to a kind of LED light source array projective tests device.
Background technology
In the today of advocating the life of energy-conserving and environment-protective low-carbon (LC), light emitting diode (LED) is in an increasingly wide range of applications in illumination, demonstration and the communications field.Thereby the LED lighting source to high power density and the demand of the little space distance LED display screen of high density also continue to increase.
The LED lighting source of high power density is the high-power LED new packaging form of a kind of small size deriving for the demand of high-power illumination light source in order to meet market.Its appearance has solved the shortcoming that high power light source size is huge and cost is high, due to its Highgrade integration and lower-cost feature, will become the inexorable trend of high-power illumination light source development in indoor and outdoor, special occasions.
Equally, the little space distance LED display screen of high definition is powerful, and the general high density display screen compared to market, has multinomial breakthrough advantage.Its maximum bright spot is the performance of low-light level, high gray scale and high refresh rate.The little spacing LED of high density shows that the future market application prospect of product is extensive, not only can meet the demands of Public place to high-end large screen television such as Large conference center, cinema, office building, and also have huge potential of demand in the professional application of the specific industries such as military affairs, public safety, the energy, traffic, broadcasting and TV, will there is explosive growth situation in future production marketing.
But no matter be high power density LED lighting source or the little space distance LED display screen of high definition, its feature is all that LED chip size is less and integrated level is higher, thereby higher to the requirement of packaging technology.Because mainly relying on gold thread, current LED integration packaging connects, so also there is certain deficiency in the yield rate of high density LED product.Meanwhile, the brightness under opening of this two classes high density LED product is all higher cannot observe bad point quantity and position with eyes.This just causes the product initial stage can not carry out easy artificial screening, thereby increases the time of equipment cost and production and delivery.
Existing LED light source array detecting device complex structure, cost are higher, and method of testing is not easy to operate, thereby find a kind of simple structure, and can accurately find that the device of trouble spot in LED light source array becomes this area practitioner's problem demanding prompt solution.
Utility model content
(1) technical matters that will solve
In view of above-mentioned technical matters, the utility model provides a kind of simple structure, LED light source array projective tests device easy and simple to handle.
(2) technical scheme
According to an aspect of the present utility model, a kind of LED light source array projective tests device is provided, this LED light source array projective tests device comprises: beam-expanding element 310, is positioned at the light path rear end of tested LED light source array 210; Projection element 410, is positioned at the light path rear end of beam-expanding element 310; And projecting plane 500, be positioned at the light path rear end of projection element 410; Wherein, the light beam that tested LED light source array 210 sends expands after amplification via beam-expanding element 310, be projected to projecting plane 500 by projection element 410, position on single LEDs light source and projecting plane in tested LED array 210 has corresponding relation, and this determines that the projection situation of position reflects the working condition of this list LEDs light source.
Preferably, in the utility model LED light source array projective tests device, beam-expanding element 310 is convex lens.
Preferably, in the utility model LED light source array projective tests device, projection element 410 is catoptron.
Preferably, in the utility model LED light source array projective tests device, projecting plane 500 is projection screen, wall, ceiling or ground.
Preferably, the utility model LED light source array projective tests device also comprises: light source stationary installation 220, and tested LED light source array 210 is fixed in this light source stationary installation 220; Beam-expanding element stationary installation 320, beam-expanding element 310 is fixed in this beam-expanding element stationary installation 320; And projection element stationary installation 420, projection element 410 is fixed on the upper of this projection element stationary installation 420.
Preferably, in the utility model LED light source array projective tests device, light source stationary installation comprises: light source base 221; Head rod 222, its top has external thread, and its length is adjustable; Chassis 223, centered by the round-meshed plate of tool, its place plane is vertical with the direction of head rod 222; And support 224, being tabular, its lower surface is offered the internal thread matching with head rod 222 upper external thread, and its front surface has the fixture of fixing tested LED light source array; Wherein, the lower end of head rod 222 is fixed in light source base 221, and upwards extend its upper end, through the circular hole at 223 middle parts, chassis, be bolted in the lower surface of support 224, the intermediate plate that fixture is metal material, this intermediate plate is by welding or the mode of spinning is fixed on the front surface of support 224.
Preferably, in the utility model LED light source array projective tests device, beam-expanding element stationary installation 320 comprises: lens pedestal 321; The second connecting link 322, its lower end be fixed on lens pedestal 321 and length adjustable, its top has external thread; The beam-expanding element fixture 323 of fixing beam-expanding element 310, the internal thread matching with the second connecting link 322 upper external thread is offered in its below; Wherein, lens pedestal 321 is fixed in the lower end of the second connecting link 322, and upwards extend upper end, is bolted in the bottom of beam-expanding element fixture 323.
Preferably, in the utility model LED light source array projective tests device, projection element stationary installation 420 comprises: Reflector base 421; Varied angle connecting link 422, its upper and lower two ends be respectively equipped with one can 360 the spheric rotary joint of degree rotation, the spheric rotary joint of lower end is fixed on Reflector base 421, the ball shape rotary structure of upper end has external thread; The projection element fixture 423 of fixing projection element, the internal thread matching with varied angle connecting link top spheric rotary joint external thread is offered in its below; Wherein, Reflector base 421 is fixed in the lower end of varied angle connecting link 422, and upwards extend its upper end, is bolted in the bottom of projection element fixture 423.
Preferably, the utility model LED light source array projective tests device also comprises: optics slide rail 100, light source stationary installation 220, beam-expanding element stationary installation 320, projection element stationary installation 420 are all positioned on this optics slide rail 100, and can move forward and backward along this optics slide rail.
Preferably, in the utility model LED light source array projective tests device, tested LED light source array is full-color RGB LED light source array, dual base color LED light source array or single primary light source array.
(3) beneficial effect
Can find out from technique scheme, the utility model LED light source array projective tests device has following beneficial effect:
(1) only use lens and catoptron light source point array module can be presented on arbitrary plane by the mode of similar projection, range estimation can be found trouble spot fast, and apparatus structure is simple, and the convenient and swift cost of test process is lower;
(2), by the mode of similar projection, avoided light source lighting under environment and cannot look at straight.Meanwhile, can find fast and accurately trouble spot, mark is also changed;
(3), by varied angle connecting link, can utilize projection element 360 degree rotations that light source is imaged in 180 degree arbitrary planes, very convenient operation;
(4) device facilitates installation and removal simple and flexible, can realize the defect test of arbitrary dimension LED light source array projection.
Brief description of the drawings
Figure 1A is according to the structural representation of the utility model embodiment LED light source array projective tests device;
Figure 1B is the principle schematic of the projective tests of LED light source array shown in Fig. 1 device;
Fig. 2 is the structural representation of tested light source and light source stationary installation in the projective tests of LED light source array shown in Figure 1A and Figure 1B device;
Fig. 3 is the structural representation of beam-expanding element and beam-expanding element stationary installation in the projective tests of LED light source array shown in Figure 1A and Figure 1B device;
Fig. 4 is the structural representation of projection element and projection element stationary installation in the projective tests of LED light source array shown in Figure 1A and Figure 1B device.
[the utility model main element symbol description]
100-optics slide rail;
210-LED array of source;
220-light source stationary installation;
221-light source base; 222-head rod; 223-chassis; 224-support;
224a, 224b-intermediate plate;
310-beam-expanding element;
320-beam-expanding element stationary installation;
321-lens pedestal; 322-the second connecting link; 323-lens holder;
410-projection element;
420-projection element stationary installation;
421-Reflector base; 422-varied angle connecting link; 423-catoptron fixture;
500-projecting plane.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.It should be noted that, in accompanying drawing or instructions description, similar or identical part is all used identical figure number.The implementation that does not illustrate in accompanying drawing or describe is form known to a person of ordinary skill in the art in affiliated technical field.In addition, although the demonstration of the parameter that comprises particular value can be provided herein, should be appreciated that, parameter is without definitely equaling corresponding value, but can in acceptable error margin or design constraint, be similar to corresponding value.The direction term of mentioning in embodiment, for example " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to accompanying drawing.Therefore, the direction term of use is to be not used for limiting protection domain of the present utility model for explanation.
The light that the utility model LED light source array projective tests device scioptics send light source presents by the mode of similar projection, the problems such as prior art proving installation testing complex and cost are higher, not easy to operate be can overcome, monochrome, dual base color, full-color various spacing LED demonstrations, illumination and communication point array module are applicable to.
In an exemplary embodiment of the present utility model, provide a kind of LED light source array projective tests device.Figure 1A is according to the structural representation of the utility model embodiment LED light source array projective tests device.Figure 1B is the principle schematic of the projective tests of LED light source array shown in Fig. 1 device.Please refer to Figure 1A and Figure 1B, the present embodiment LED light source array projective tests device comprises:
Optics slide rail 100;
Light source stationary installation 220, is positioned on optics slide rail 100, and tested LED light source array 210 is fixed on this light source stationary installation top;
Beam-expanding element 310, is positioned at the light path rear end of tested LED light source array 210;
Beam-expanding element stationary installation 320, is positioned on optics slide rail 100, and beam-expanding element 310 is fixed on this beam-expanding element stationary installation 320 tops;
Projection element 410, is positioned at the light path rear end of beam-expanding element 310;
Projection element stationary installation 420, is positioned on optics slide rail 100, and projection element 410 is fixed on the top of this projection element stationary installation 420;
Projecting plane 500, is positioned at the light path rear end of projection element 410;
Wherein, the light beam that tested LED light source array sends expands after amplification via beam-expanding element 310, be projected to projecting plane 500 by projection element 410, position on single LEDs light source and projecting plane in described tested LED array has corresponding relation, and this determines that the projection situation of position reflects the working condition of this list LEDs light source.
Below respectively each ingredient of the present embodiment LED light source array projective tests device is elaborated.
Tested LED light source array
In the present embodiment, tested LED light source array is full-color RGB LED light source array, or dual base color, monochromatic LED array of source.The array shape of light source can be circle, square matrix or rectangular array; Main tested object is the LED light source array of little micro-spacing.
Except array of source, the LED light source array projective tests device of the present embodiment can also be tested the light source of the type such as white light LED array, LED pointolite (it comprises mono-light source of multiple LED equally).
Beam-expanding element
In the present embodiment, beam-expanding element 310 is convex lens.The light that tested LED light source array sends, via converging after these convex lens, gathers the array of source light of dispersing; Realize enlarging function simultaneously, the LED light source array image in array of source (comprising position, shape, state etc.) is amplified and presented.
Except convex lens, this beam-expanding element can also adopt other optical elements that have beam divergence function etc.
Projection element
In the present embodiment, projection element 410 is catoptron, is projected to the opposite side that departs from optical axis via the light after expanding by this projection element, with conserve space, elongates the distance of projection.And the angle of this catoptron can be rotated, thereby can arbitrarily change the position of projection, be convenient to realize the projective tests function in any space.
Except catoptron, this projection element can also have for other element of projected nature.
Projecting plane
In the present embodiment, projecting plane 500 is projection screen.
But in the utility model, the type on projecting plane is not limited.This projecting plane can be also wall, ceiling, ground etc., is not limited to special projection screen.
Optics slide rail
Optics slide rail 100 is positioned at sustained height and same optical axis for ensureing LED light source array, beam-expanding element 310 with projection element 410.Length direction at this optics slide rail 100 is marked with scale value, and it is metal material, has certain mass and width.It should be noted that, this optics slide rail is not that to realize the utility model necessary, and under the prerequisite that can ensure LED light source array, beam-expanding element 310 and projection element 410 relevant positions, this optics slide rail can omit.
Light source stationary installation
Light source stationary installation 220 is positioned on optics slide rail 100, for fixing tested LED array.Fig. 2 is the structural representation of tested light source and light source stuck-module in the projective tests of LED light source array shown in Figure 1A and Figure 1B device.Please refer to Figure 1A and Fig. 2, light source stationary installation 220 comprises:
Light source base 221, is positioned on described optics slide rail 100, and can move forward and backward along this optics slide rail 100;
Head rod 222, its lower end be fixed in light source base 221 and length adjustable, its top has external thread;
Chassis 223, centered by the round-meshed square plate of tool, its place plane is vertical with the direction of head rod 222;
Support 224, is square tabular, and its lower surface is offered the internal thread matching with head rod 222 upper external thread, and its front surface has the fixture for fixing tested LED light source array;
Wherein, head rod 222 upwards extends, and through the circular hole at 223 middle parts, chassis, support 224 is bolted in the top of connecting link 222.
Chassis 223 is for plastic material and have certain thickness and the square plate of area.Head rod 222 runs through this chassis 223, and this chassis 223 is fixed on head rod 222.In addition, on head rod 222, separately use also can be pulled down in fixing chassis 223.Meanwhile, chassis 223 can be used for placing the electronic components such as driving, control and the Miniature Power Unit circuit of light source.
Support 224 is for aluminum and have certain thickness slab construction, comprises the metal material intermediate plate (224a, 224b) of two fixed light source lattice modules.Two intermediate plates are by welding or the mode of spinning is fixed on the upper surface correspondence position of described support 1, and spacing, position between two intermediate plates is adjustable.The bottom of support 224 has screw thread and revolves mouth.The internal thread that the external thread of connecting link 222 upper ends and this screw thread revolve mouth matches.The upper end of connecting link 222, through behind chassis 223, is bolted in support 224, and with supporting bracket 224, and support 224 can rotate with respect to chassis 223.
Beam-expanding element stationary installation
Beam-expanding element stationary installation 320 is positioned on optics slide rail, for fixing beam-expanding element.Fig. 3 is the structural representation of beam-expanding element and beam-expanding element stationary installation in the projective tests of LED light source array shown in Figure 1A and Figure 1B device.Please refer to Figure 1A and Fig. 3, this beam-expanding element stationary installation 320 comprises:
Lens pedestal 321, is positioned on described optics slide rail 100, the rear of light source base 221, and it can move forward and backward along optics slide rail 100 equally;
The second connecting link 322, its lower end be fixed on lens pedestal 321 and length adjustable, its top has external thread, its material and shape are identical with head rod 222.
Lens holder 323, for fixed lens, the internal thread matching with the second connecting link 322 upper external thread is offered in its below;
Wherein, lens pedestal 321 is fixed in the lower end of the second connecting link 322, upwards extends, and is bolted in the bottom of lens holder.
Projection element stationary installation
Projection element stationary installation 420 is positioned on optics slide rail, for fixing projection element.Fig. 4 is the structural representation of projection element and projection element stationary installation in the projective tests of LED light source array shown in Figure 1A and Figure 1B device.Please refer to Figure 1A and Fig. 4, this projection element stationary installation 420 comprises:
Reflector base 421, is positioned on described optics slide rail 100, the rear of lens pedestal 321,
It can move forward and backward along optics slide rail 100 equally;
Varied angle connecting link 422, its upper and lower two ends be equipped with two can 360 the spheric rotary joint of degree rotation, the swivel adapter head of lower end is fixed on described Reflector base 421.
Catoptron fixture 423, for stationary mirror, the internal thread matching with varied angle connecting link 422 top spheric rotary joint external threads is offered in its below;
Wherein, Reflector base 321 is fixed in the lower end of varied angle connecting link 422, and upwards extend its upper end, is bolted in the bottom of catoptron fixture 423.
In the present embodiment, the light that LED light source array sends converges after by beam-expanding element 310, afterwards by the reflex of projection element 410, can realize and utilize the mode of similar projection on projecting plane 500, to present the array of source inner structure of proportional amplification pointolite, thereby estimate defective locations and the problem that can find light source point array module.360 of varied angle connecting link 422 upper and lower sides are spent the spheric rotary joint of rotation, can change angle and the position of reflective mirror, can realize light source is projected in arbitrary position plane of wanting.Change the length of connecting link 222 by change, thereby the relative height between fine setting LED light source array 210 and beam-expanding element 310, projection element 410 presents complete light source internal image.And change the relative angle on support 224 and chassis 223 by rotation, and can complete observation and bad point quantity and the position of detection light source lattice module, ensure to detect the comprehensive of data.Meanwhile, can change the distance between LED light source array 210 and beam-expanding element 310, projection element 410 according to scale value on optics slide rail 100 according to testing requirement, regulate the sharpness of projected image, ensure the accuracy of detection.
So far, by reference to the accompanying drawings an embodiment of the present utility model be have been described in detail.Describe according to above, those skilled in the art should have clearly understanding for array of source projective tests method and device to the utility model.
In addition, the above-mentioned definition to each element and method is not limited in various concrete structures, shape or the mode in embodiment, mentioned, those of ordinary skill in the art can know simply and replace it, for example: by making slide rail into the base of scale, lens are carried out to range conversion, realize dispersing light; Change material, shape and the size etc. of all parts in described proving installation.
In sum, the utility model provides a kind of for array of source projective tests method and device.This device can detect the problems such as the defect of the LED lighting source array of high power density under illuminating state and the LED display module of little micro-dimension fast and accurately.Method of testing is that the light that sends of light source converges after by beam-expanding element, afterwards by projection element reflex, can realize and utilize the mode of similar projection to present the array of source inner structure of proportional amplification pointolite, thereby estimate defective locations and the problem that can find light source point array module.360 of varied angle connecting link upper and lower side is spent the spheric rotary joint of rotation, can change angle and the position of projection element, can realize light source is projected in arbitrary position plane of wanting.This device is simple to operate, cost is low and practicality is stronger, is applicable to all kinds of LED related scientific research and enterprise and uses.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a LED light source array projective tests device, is characterized in that, comprising:
Beam-expanding element (310), is positioned at the light path rear end of tested LED light source array (210);
Projection element (410), is positioned at the light path rear end of described beam-expanding element (310); And
Projecting plane (500), is positioned at the light path rear end of described projection element (410);
Wherein, the light beam that described tested LED light source array (210) sends expands after amplification via described beam-expanding element (310), be projected to described projecting plane (500) by described projection element (410), on single LEDs light source in described tested LED array (210) and described projecting plane, allocation has corresponding relation really, and this determines that the projection situation of position reflects the working condition of this list LEDs light source.
2. LED light source array projective tests device according to claim 1, is characterized in that, described beam-expanding element (310) is convex lens.
3. LED light source array projective tests device according to claim 1, is characterized in that, described projection element (410) is catoptron.
4. LED light source array projective tests device according to claim 1, is characterized in that, described projecting plane (500) are projection screen, wall, ceiling or ground.
5. LED light source array projective tests device according to claim 1, is characterized in that, also comprises:
Light source stationary installation (220), described tested LED light source array (210) is fixed in this light source stationary installation (220);
Beam-expanding element stationary installation (320), described beam-expanding element (310) is fixed in this beam-expanding element stationary installation (320); And
Projection element stationary installation (420), described projection element (410) is fixed on the upper of this projection element stationary installation (420).
6. LED light source array projective tests device according to claim 5, is characterized in that, described light source stationary installation comprises:
Light source base (221);
Head rod (222), its top has external thread, and its length is adjustable;
Chassis (223), centered by the round-meshed plate of tool, its place plane is vertical with the direction of described head rod (222); And
Support (224), is tabular, and its lower surface is offered the internal thread matching with described head rod (222) upper external thread, and its front surface has the fixture of fixing described tested LED light source array;
Wherein, the lower end of described head rod (222) is fixed in described light source base (221), upwards extend its upper end, through the circular hole at middle part, described chassis (223), be bolted in the lower surface of described support (224), described fixture is the intermediate plate of metal material, and this intermediate plate is by welding or the mode of spinning is fixed on the front surface of described support (224).
7. LED light source array projective tests device according to claim 5, is characterized in that, described beam-expanding element stationary installation (320) comprising:
Lens pedestal (321);
The second connecting link (322), its lower end is fixed on that described lens pedestal (321) is upper and length is adjustable, and its top has external thread;
The beam-expanding element fixture (323) of fixing described beam-expanding element (310), the internal thread matching with described the second connecting link (322) upper external thread is offered in its below;
Wherein, described lens pedestal (321) is fixed in the lower end of described the second connecting link (322), and upwards extend upper end, is bolted in the bottom of described beam-expanding element fixture (323).
8. LED light source array projective tests device according to claim 5, is characterized in that, described projection element stationary installation (420) comprising:
Reflector base (421);
Varied angle connecting link (422), its upper and lower two ends be respectively equipped with one can 360 the spheric rotary joint of degree rotation, the spheric rotary joint of lower end is fixed on described Reflector base (421), the ball shape rotary structure of upper end has external thread;
The projection element fixture (423) of fixing described projection element, the internal thread matching with varied angle connecting link top spheric rotary joint external thread is offered in its below;
Wherein, described Reflector base (421) is fixed in the lower end of varied angle connecting link (422), and upwards extend its upper end, is bolted in the bottom of described projection element fixture (423).
9. LED light source array projective tests device according to claim 2, is characterized in that, also comprises:
Optics slide rail (100), it is upper that described light source stationary installation (220), beam-expanding element stationary installation (320), projection element stationary installation (420) are all positioned at this optics slide rail (100), and can move forward and backward along this optics slide rail.
10. according to the LED light source array projective tests device described in any one in claim 1 to 9, it is characterized in that, described tested LED light source array is full-color RGB LED light source array, dual base color LED light source array or single primary light source array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096830.4U CN203798537U (en) | 2014-03-05 | 2014-03-05 | LED light source array projection testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096830.4U CN203798537U (en) | 2014-03-05 | 2014-03-05 | LED light source array projection testing device |
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| Publication Number | Publication Date |
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| CN203798537U true CN203798537U (en) | 2014-08-27 |
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| CN201420096830.4U Expired - Lifetime CN203798537U (en) | 2014-03-05 | 2014-03-05 | LED light source array projection testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808496A (en) * | 2014-03-05 | 2014-05-21 | 中国科学院半导体研究所 | LED (Light-Emitting Diode) light source array projection testing device |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808496A (en) * | 2014-03-05 | 2014-05-21 | 中国科学院半导体研究所 | LED (Light-Emitting Diode) light source array projection testing device |
| CN103808496B (en) * | 2014-03-05 | 2016-07-27 | 中国科学院半导体研究所 | LED light source array projective tests device |
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