CN207133034U - LED test device - Google Patents

LED test device Download PDF

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Publication number
CN207133034U
CN207133034U CN201720535053.2U CN201720535053U CN207133034U CN 207133034 U CN207133034 U CN 207133034U CN 201720535053 U CN201720535053 U CN 201720535053U CN 207133034 U CN207133034 U CN 207133034U
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China
Prior art keywords
led
lamp bar
test device
integrating sphere
led element
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CN201720535053.2U
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Chinese (zh)
Inventor
魏明贺
陆玉花
杨珊珊
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InfoVision Optoelectronics Kunshan Co Ltd
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InfoVision Optoelectronics Kunshan Co Ltd
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Abstract

A kind of LED test device disclosed in the utility model embodiment, including:Integrating sphere and lamp bar fixture;The top ball wall of integrating sphere is provided with opening, and lamp bar fixture includes control unit, fixed part and the test department being sequentially connected;Lamp bar fixture is removably attached to the opening of integrating sphere by fixed part, and test department is arranged on the inside of integrating sphere, and test department is provided with the detection mouth to match with the size of LED element;The side of detection mouth towards LED element is additionally provided with blend stop against sunshine, and it can block the light around LED element in blend stop against sunshine.LED test device disclosed in the utility model embodiment, periphery is avoided on the luminous optical data for influenceing, the LED element to be detected under the full illuminating state of LED light bar being accurately measured of LED element.Tip-off manually need not be carried out to the LED element in LED light bar in advance before test, LED element can also be made marks after test, easily distinguish the optical data of multiple LED elements.

Description

LED test device
Technical field
Technical field of liquid crystal display is the utility model is related to, more particularly, to a kind of test device of LED light parameter.
Background technology
The backlight of backlight module typically uses LED light bar in liquid crystal display device on the market at present, i.e., by multiple single LED is fabricated to LED light bar.
When the backlight module of liquid crystal display device phenomena such as uneven incident side light and shade and hotspot occurs, it is necessary to LED The LED of single of bar carries out optical data measurement, to analyse whether because the LED of single is bad or supplier is mixed into other rule Issue caused by the LED of lattice.
Fig. 1 is the LED test device of prior art, as shown in figure 1, including existing integrating sphere 10, spectrometer 20 and test Substrate 40;Test substrate 40 is detachably secured on the ball wall of existing integrating sphere 10, tests substrate 40 towards existing integrating sphere 10 The LED 50 of single is fixed in the side of the centre of sphere, and the opposite side of test substrate 40 is connected by power line with power supply 60;Spectrometer The 20 spectrum instrument probes 30 including being connected electrically, spectrum instrument probe 30 are arranged in the opposite side ball wall of existing integrating sphere 10 The heart and relative with the LED 50 of single position.
In the prior art, the LED of single is carried out before optical data measures, it is necessary to which personnel are in advance manually by the LED of single Tip-off is removed from LED light bar, then can measure optical data to the LED of single using integrating sphere again.Such a measurement side Method has following defect:
1. a pair LED light bar tip-off belongs to destructive test, time consuming and waste sample;
2. tip-off can not carry out further other tests, the same LED light bar of subsequent affect carries out other factors investigation, even if Again original reference value of synteny, normal throw and obliquity can not also be ensured by welding;
3. the LED of single of solution postwelding can not make marks, easily mixing cannot be distinguished by the optical value of every LEDs;
4. solve LED light measured value reference price of the LED light measured value of single than single in whole lamp bar of postwelding Value difference.
In view of this, present utility model application people be directed to above-mentioned LED test device in do not attain improve caused by it is many lack Lose and inconvenient, and deeply conceive, and actively research improvement has a fling at and develops and design this creation.
Utility model content
To achieve these goals, solution of the present utility model is:
The utility model embodiment discloses a kind of LED test device, including:Integrating sphere and lamp bar fixture;It is described The top ball wall of integrating sphere is provided with opening, and the lamp bar fixture includes control unit, fixed part and the test department being sequentially connected;
Wherein, the lamp bar fixture is removably attached to the opening of the integrating sphere by the fixed part, described Test department is arranged on the inside of the integrating sphere, and the test department is provided with the detection mouth of test LED element;The detection mouth with The size of the LED element matches;
The side of the detection mouth towards the LED element is additionally provided with blend stop against sunshine, and the blend stop against sunshine can be by described in Light around LED element is blocked in outside the blend stop against sunshine.
Preferably, the lamp bar fixture is hollow-core construction, and it is internally provided with moveable support plate and is fixed on described LED light bar below support plate;The detection mouth is arranged on the light emission side of the LED light bar.
Preferably, the LED light bar includes the LED element of multiple spaced sets.
Preferably, rack is provided with above the support plate, the control unit of the lamp bar fixture is provided with rotary screw, institute The other end for stating rotary screw is linkage gear, and the rack of the linkage gear and the support plate is mutually clamped, and rotates the rotation The support plate movement can be driven to realize that the LED light bar moves along the horizontal direction of LED light bar by turning screw rod.
Preferably, the lamp bar fixture also includes at least one compression spring, the both ends of the compression spring respectively with institute The lower section for stating support plate mutually compresses with the inwall of the lamp bar fixture.
Preferably, the lamp bar fixture also includes lifting screw and the threaded openings being arranged on the control unit, described Lifting screw presses on the top of the support plate through one end of the threaded openings, and the other end exposes the threaded openings;Turn The support plate movement can be promoted to realize that the LED light bar moves along the vertical direction of LED light bar by moving the lifting screw.
Preferably, the surface of the fixed part of the lamp bar fixture is provided with external screw thread, and the surface of the opening of the integrating sphere is set There is the internal thread to match with the external screw thread.
Preferably, the lamp bar fixture also includes power line, and the power line extends into the inside of the lamp bar fixture, will The LED light bar and power electric connection.
Preferably, all surface of the lamp bar fixture is unreflected white.
Preferably, the LED test device also includes spectrometer, and the spectrometer that the spectrometer includes being connected electrically is visited Head, the spectrum instrument probe are arranged on the center of the side ball wall of the integrating sphere;The position of the spectrum instrument probe with it is described The position of detection mouth is oppositely arranged.
A kind of LED test device disclosed in the utility model embodiment, by setting lamp bar fixture to consolidate LED light bar Calmly, and on lamp bar fixture the detection mouth for being provided with blend stop against sunshine individually carries out optic test to LED element, avoids periphery The luminous optical data for influenceing, the LED element to be detected under the full illuminating state of LED light bar being accurately measured of LED element, from And know whether the LED element of single in LED light bar meets optical requirement.Need not be in advance manually in LED light bar before test LED element carry out tip-off, LED element can also be made marks after test, easily distinguish the optical data of multiple LED elements, Same LED light bar is not interfered with simultaneously yet carries out other factors investigation.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh , feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the structural representation of the LED test device of prior art;
Fig. 2 is the structural representation of LED test device disclosed in the utility model embodiment;
Fig. 3 is the side view of the lamp bar fixture of the utility model embodiment;
Fig. 4 is the diagrammatic cross-section of the lamp bar fixture regulation LED element of the utility model embodiment;
Fig. 5 is the diagrammatic cross-section of the lamp bar fixture positioning LED element of the utility model embodiment;
In figure:10:Existing integrating sphere;20:Spectrometer;30:Spectrum instrument probe;40:Test substrate;50:The LED of single; 60:Power supply;100:Integrating sphere;110:Opening;200:Lamp bar fixture;210:Control unit;211:Rotary screw;212:Link tooth Wheel;213:Lifting screw;214:Threaded openings;220:Fixed part;230:Test department;231:Detection mouth;232:Blend stop against sunshine; 240:Support plate;241:Rack;250:LED light bar;251:LED element;260:Compression spring;270:Power line.
Embodiment
In order to which the technical solution of the utility model is explained further, below in conjunction with attached in the utility model embodiment Figure, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that described embodiment is only It is the utility model part of the embodiment, rather than whole embodiments.It is general based on the embodiment in the utility model, this area The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belong to the utility model guarantor The scope of shield.
Embodiment:
Fig. 2 is the structural representation of LED test device disclosed in the utility model embodiment.
As shown in Fig. 2 the utility model embodiment discloses a kind of LED test device, including integrating sphere 100 and lamp bar folder Tool 200, the top ball wall of integrating sphere 100 are provided with opening 110, control unit 210 that lamp bar fixture 200 includes being sequentially connected, consolidate Determine portion 220 and test department 230, lamp bar fixture 200 is removably attached to the opening 110 of integrating sphere 100 by fixed part 220 Place.
In the present embodiment, test department 230 is arranged on the inside of integrating sphere 100, and test department 230 is provided with test LED members The detection mouth 231 of part 251;The size of detection mouth 231 and LED element 251 matches;Detection mouth 231 is towards LED element 251 Side is additionally provided with blend stop 232 against sunshine, and blend stop 232 against sunshine can block the light around LED element 251 in outside blend stop 232 against sunshine.
In the present embodiment, the surface of the fixed part 220 of lamp bar fixture 200 is provided with external screw thread, the top ball of integrating sphere 100 The size of opening 110 and fixed part 220 on wall is in the same size, and 110 surface of being open is provided with the internal thread that matches with external screw thread. Cooperated by the external screw thread of fixed part 220 and the internal thread of opening 110, it is possible to achieve integrating sphere 100 and lamp bar fixture 200 Combine closely, prevent light leak influence measurement optical data.
Specifically, internal thread and externally threaded form are identical, i.e., internal thread and external screw thread must be angular thread, ladder entirely Shape screw thread etc..
In the present embodiment, lamp bar fixture 200 also includes power line 270, and power line 270 extends into lamp bar fixture 200 Inside, by LED light bar and power electric connection.
In the present embodiment, all surface of lamp bar fixture 200 is unreflected white, can prevent from causing shadow to experiment Ring, to ensure the precision of measurement.
In the present embodiment, LED test device also includes spectrometer (not shown), and spectrometer includes being connected electrically Spectrum instrument probe (not shown), spectrum instrument probe be arranged on integrating sphere 100 side ball wall center;Spectrum instrument probe Position and detection mouth 231 and position be oppositely arranged, more accurately to carry out optical data measurement to LED element 251.
Fig. 3 is the side view of the lamp bar fixture of the utility model embodiment;Fig. 4 is the lamp bar folder of the utility model embodiment The diagrammatic cross-section of tool regulation LED element;Fig. 5 is that the section of the lamp bar fixture positioning LED element of the utility model embodiment shows It is intended to.
As in Figure 3-5:Lamp bar fixture 200 in the utility model embodiment is hollow-core construction, and it is internally provided with can Mobile support plate 240 and the LED light bar 250 being fixed on below support plate 240;Detection mouth 231 is arranged on going out for LED light bar 250 Light side;
In the present embodiment, LED light bar includes the LED element 251 of multiple spaced sets.
In the present embodiment, the top of support plate 240 is provided with rack 241, and the control unit 210 of lamp bar fixture 200 is provided with Rotary screw 211, the other end of rotary screw 211 are the phases of rack 241 of linkage gear 212, linkage gear 212 and support plate 240 Mutually engaging, rotating rotary screw 211 can drive support plate 240 to move to realize that horizontal direction of the LED light bar 250 along LED light bar is moved It is dynamic.
In the present embodiment, lamp bar fixture 200 also includes at least one compression spring 260, the both ends point of compression spring 260 Do not compressed mutually with the lower section of support plate 240 and the inwall of lamp bar fixture 200.Specifically, a compression spring 260 is arranged on lamp bar folder In the control unit 210 of tool 200.
In the present embodiment, the screw thread that lamp bar fixture 200 also includes lifting screw 213 and is arranged on control unit 210 is opened Mouth 214, lifting screw 213 passes through threaded openings 214, and one end presses on the top of support plate 240, and the other end exposes threaded openings 214;Rotating lifting screw 213 can promote support plate 240 to move to realize that LED light bar 250 moves along the vertical direction of LED light bar. Specifically, the position of compression spring 260 is corresponding with the position of lifting screw 213, threaded openings 214.
In other embodiments, lifting screw 213, threaded openings 214 and compression spring 260 can also be arranged on lamp simultaneously In the test department 240 of bar fixture 200, here, both positions are not limited, as long as reaching by lifting screw 213 and compression bullet The cooperation of spring 260 is to be better achieved the shaded effect of blend stop 232 against sunshine.
It is the workflow using the LED test device of the utility model embodiment below:
First, to the LED element 251 of acceptance test is adjusted, as shown in Figure 4:LED on to LED light bar 250 When element 251 carries out optical data measurement, first lamp bar fixture 200 is opened, LED light bar 250 is then fixed on support plate 240 On, specifically, it can make to be screwed, adhesive tape fixes etc. mode.
Then lamp bar fixture 200 is closed, rotates rotary screw 211 to drive support plate 240 to move, what support plate 240 moved Drive LED light bar 250 to be moved along the horizontal direction of LED light bar simultaneously, when LED element 251 is moved to detection mouth 231, stop Go to rotary screw 211.Now, oneself adjusts the LED element 251 of acceptance test at detection mouth 231, now, compression spring 260 be in flick state.
Next, to the LED element 251 of acceptance test is positioned, as shown in Figure 5:Lifting screw 213 is rotated to push away Dynamic load plate 240, carry and moved while moving 240 movement with LED light bar 250 along the vertical direction of LED light bar, now compression spring 260 be in compressive state, when the blend stop against sunshine 232 of lamp bar fixture touches the gap location among LED element 251, lifting screw 213 Stop operating.Now, blend stop 232 against sunshine can block the light around LED element 251 in outside blend stop 232 against sunshine.
Finally, the fixed part 220 of lamp bar fixture 200 is fixed at the opening 110 of integrating sphere 100, opens spectrometer pair LED element 251 carries out optical data measurement.
In addition, it is that another LED element is tested using the LED test device of the utility model embodiment below Workflow:
After the LED element 251 for receiving measurement measures, lamp bar fixture 200 is taken out from integrating sphere 100 first; Lifting screw 213 is rotated, while is up pushed up support plate 240 by the elastic force of compression spring 260, due to having rack on support plate 240 241 and under have LED light bar 250, rack 241 is also moving up while support plate 240 moves up, when being moved to linkage tooth on rack 241 Take turns at 212, lifting screw 213 stops operating;Next rotary screw 211 is rotated, support plate 240 is driven by linkage gear 212 It is mobile, drive LED light bar 250 to be moved along the horizontal direction of LED light bar while support plate 240 moves.Here, can be according to difference Test request optical data measurement is carried out to LED element one by one in order, wherein indivedual LED elements can also be carried out Optical data measures.
A kind of LED test device disclosed in the utility model embodiment, by setting lamp bar fixture to consolidate LED light bar Calmly, and on lamp bar fixture the detection mouth for being provided with blend stop against sunshine individually carries out optic test to LED element, avoids periphery The luminous optical data for influenceing, the LED element to be detected under the full illuminating state of LED light bar being accurately measured of LED element, from And know whether the LED element of single in LED light bar meets optical requirement.Need not be in advance manually in LED light bar before test LED element carry out tip-off, LED element can also be made marks after test, easily distinguish the optical data of multiple LED elements, Same LED light bar is not interfered with simultaneously yet carries out other factors investigation.
Above is full content of the present utility model, in this manual, term " comprising ", "comprising" or its it is any its His variant is intended to including for nonexcludability, except comprising those listed key elements, but also can include and be not expressly set out Other element.
In this manual, the involved noun of locality such as forward and backward, upper and lower be located at parts in accompanying drawing in figure and The mutual position of parts is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the side The use of position word should not limit the claimed scope of the application.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new principle, any modification, equivalent substitution and improvements made etc., the scope of protection of the utility model should be included in Within.

Claims (10)

  1. A kind of 1. LED test device, it is characterised in that including:Integrating sphere (100) and lamp bar fixture (200);The integrating sphere (100) top ball wall is provided with opening (110), control unit (210) that the lamp bar fixture (200) includes being sequentially connected, solid Determine portion (220) and test department (230);
    Wherein, the lamp bar fixture (200) is removably attached to the integrating sphere (100) by the fixed part (220) Be open (110) place, and the test department (230) is arranged on the inside of the integrating sphere (100), and the test department (230) is provided with Test the detection mouth (231) of LED element (251);The detection mouth (231) and the size of the LED element (251) match;
    The detection mouth (231) is additionally provided with blend stop against sunshine (232), the anti-light trap towards the side of the LED element (251) Bar (232) can block the light around the LED element (251) in the blend stop (232) against sunshine outside.
  2. 2. LED test device as claimed in claim 1, it is characterised in that the lamp bar fixture (200) is hollow-core construction, its The LED light bar (250) for being internally provided with moveable support plate (240) and being fixed on below the support plate (240);The detection Mouth (231) is arranged on the light emission side of the LED light bar (250).
  3. 3. LED test device as claimed in claim 2, it is characterised in that the LED light bar (250) includes multiple equidistant The LED element (251) set.
  4. 4. LED test device as claimed in claim 3, it is characterised in that be provided with rack above the support plate (240) (241), the control unit (210) of the lamp bar fixture (200) is provided with rotary screw (211), the rotary screw (211) it is another One end is linkage gear (212), and the rack (241) of the linkage gear (212) and the support plate is mutually clamped, and rotates the rotation Turning screw rod (211) can drive the support plate (240) mobile to realize that horizontal direction of the LED light bar (250) along LED light bar is moved It is dynamic.
  5. 5. LED test device as claimed in claim 4, it is characterised in that the lamp bar fixture (200) also includes at least one Compression spring (260), the both ends of the compression spring (260) lower section with the support plate (240) and the lamp bar fixture respectively (200) inwall mutually compresses.
  6. 6. LED test device as claimed in claim 5, it is characterised in that the lamp bar fixture (200) also includes lifting screw (213) opened with the threaded openings (214) that are arranged on the control unit (210), the lifting screw (213) through the screw thread One end of mouth (214) presses on the top of the support plate (240), and the other end exposes the threaded openings (214);Rotate the liter Drop screw rod (213) can promote the support plate (240) mobile to realize that vertical direction of the LED light bar (250) along LED light bar is moved It is dynamic.
  7. 7. LED test device as claimed in claim 1, it is characterised in that the fixed part (220) of the lamp bar fixture (200) Surface be provided with external screw thread, the surface of the opening (110) of the integrating sphere (100) is provided with the interior spiral shell to match with the external screw thread Line.
  8. 8. LED test device as claimed in claim 2, it is characterised in that the lamp bar fixture (200) also includes power line (270), the power line (270) extends into the inside of the lamp bar fixture (200), by the LED light bar (250) and power supply electricity Connection.
  9. 9. LED test device as claimed in claim 1, all surface of the lamp bar fixture (200) is unreflected white.
  10. 10. LED test device as claimed in claim 1, it is characterised in that the LED test device also includes spectrometer, institute The spectrum instrument probe that spectrometer includes being connected electrically is stated, the spectrum instrument probe is arranged on the side of the integrating sphere (100) The center of ball wall;The position of the position of the spectrum instrument probe and the detection mouth (231) is with being oppositely arranged.
CN201720535053.2U 2017-05-12 2017-05-12 LED test device Active CN207133034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720535053.2U CN207133034U (en) 2017-05-12 2017-05-12 LED test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720535053.2U CN207133034U (en) 2017-05-12 2017-05-12 LED test device

Publications (1)

Publication Number Publication Date
CN207133034U true CN207133034U (en) 2018-03-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720535053.2U Active CN207133034U (en) 2017-05-12 2017-05-12 LED test device

Country Status (1)

Country Link
CN (1) CN207133034U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044582A (en) * 2019-04-26 2019-07-23 广东天圣高科股份有限公司 A kind of photochromic electric auto testing instrument of high-precision

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044582A (en) * 2019-04-26 2019-07-23 广东天圣高科股份有限公司 A kind of photochromic electric auto testing instrument of high-precision

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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou

Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd.

Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou

Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd.

CP01 Change in the name or title of a patent holder