CN102486536A - Detection machine, detection method and detection system - Google Patents
Detection machine, detection method and detection system Download PDFInfo
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- CN102486536A CN102486536A CN201110059097XA CN201110059097A CN102486536A CN 102486536 A CN102486536 A CN 102486536A CN 201110059097X A CN201110059097X A CN 201110059097XA CN 201110059097 A CN201110059097 A CN 201110059097A CN 102486536 A CN102486536 A CN 102486536A
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Abstract
The invention discloses a detection machine, a detection method and a detection system. The detection machine is suitable for carrying out optical and electrical detection on the light-emitting element. The detection machine comprises a substrate platform, a probe mechanism, a heating device, a cooling device, an image sensing device, a temperature sensing device and a mobile station. The probe mechanism is suitable for approaching the substrate platform and contacting with the light-emitting element. The heating device is suitable for heating the light-emitting element to maintain the light-emitting element within a first temperature range. The cooling device cools the light emitting element to maintain the light emitting element within a second temperature range. The image sensing device senses the light-emitting image generated by the light-emitting element. The temperature sensing device senses the current temperature of the light-emitting element. The image sensing device is arranged on the mobile station, wherein the mobile station is suitable for moving the image sensing device. The invention also provides a detection method and a detection system which are suitable for the detection machine.
Description
Technical field
The present invention relates to a kind of detection board, detection method and detection system, and particularly relate to detection board, detection method and the detection system of a kind of low cost and high qualification rate.
Background technology
Traditionally for light-emitting component (as: light-emitting diode light bar) is carried out various optical detections and electrical detection; The board of various optical detections and electrical detection can be set usually; And, just can measure the optical property and the electrical performance of light-emitting component through light-emitting component being sent in regular turn in these detection boards.Particularly; It is a station that the surplus temperature visual inspection of light-emitting component after via the reflow stove differentiated; And utilize manual adjustment power supply unit and probe mechanism to light a lamp; Whether utilize visual inspection to detect LED afterwards and light and visual testing, so the condition of high temperature, and visual inspection personnel only detect the lamp bar of one group of light-emitting component if can't guarantee.
When after the high temperature electrical detection, carrying out the low temperature electrical detection, need earlier the light-emitting component cooling, it adopts mode can be to move or time of waiting for is done cooling through manufacture craft, or installs cooling device (so just needing a station) such as blower fan additional.
Moreover (Auto Optic Inspection when AOI) light-emitting component being carried out the outward appearance detection, normally is used for detecting the light-emitting component off normal and lacks problems such as weldering, and wherein this AOI detects and is generally the robotization board to utilize the automated optical detection.
Moreover, when utilizing the automated optical detection that light-emitting component is carried out optical detection, normally be used for detecting the optical characteristics of light-emitting component, wherein this optical detection is generally the robotization board.
Afterwards; Carrying out the low temperature electrical detection also is the mode of differentiating through visual inspection; Therefore whether this part is again a station, and the mode of electrical detection also is to adopt manual adjustment power supply unit and hand-held probe to light a lamp, and utilize visual inspection to detect light-emitting component and light and visual testing.
Know based on above-mentioned, detect that just need to pass through a plurality of stations when detecting with low temperature other if desire is carried out high temperature with light-emitting component, so these boards are shared has many spaces, the production line that meaning promptly detects light-emitting component just can't be shortened.
Summary of the invention
The object of the present invention is to provide a kind of detection board, it has low cost, robotization, high qualification rate and the less advantage of overall volume.
Another purpose of the present invention is to provide a kind of detection method, and it is applicable to above-mentioned detection board.
Another object of the present invention is to provide a kind of detection system, and it is applicable to above-mentioned detection board.
For reaching above-mentioned purpose, the present invention proposes a kind of detection board, and it is suitable for a light-emitting component is carried out optics and electrical detection.This detects board and comprises a substrate stage, a probe mechanism, a heating arrangement, a cooling device, an Image sensor apparatus, an optical detection apparatus, a temperature sensing device and a transfer table.Light-emitting component is disposed on the substrate stage.Probe mechanism is arranged at substrate stage top, and probe mechanism be suitable for toward substrate stage near and contact with light-emitting component.Heating arrangement is arranged at the below of substrate stage and is suitable for heating light-emitting component, so that light-emitting component is maintained in one first temperature range.In the time of in light-emitting component is in first temperature range, the probe mechanism that contacts with light-emitting component is suitable for transmitting one first drive signal to light-emitting component, with driven light-emitting element.Cooling device is arranged at the below of substrate stage and is suitable for cooling off light-emitting component, so that light-emitting component is maintained in one second temperature range.In the time of in light-emitting component is in second temperature range, the probe mechanism that contacts with light-emitting component is suitable for transmitting one second drive signal to light-emitting component, with driven light-emitting element.Image sensor apparatus is arranged at the top of light-emitting component and is suitable for a luminous image and the outward appearance thereof that the sensing light-emitting component is produced when driving.Temperature sensing device is arranged at the top of light-emitting component, in order to the present temperature of sensing light-emitting component.Transfer table is arranged at the top of light-emitting component, and Image sensor apparatus is installed on the transfer table, and wherein transfer table is suitable for the movable image sensing apparatus.
In one embodiment of this invention, substrate stage comprises a conveyer belt apparatus, is suitable for carrying and transmitting light-emitting component.
In one embodiment of this invention, heating arrangement comprises a heat block or heating plate.
In one embodiment of this invention, first temperature range drops in fact between 120 degree Celsius and 200 degree Celsius.
In one embodiment of this invention, cooling device comprises a circulation or a gas ejecting system
In one embodiment of this invention, second temperature range drops in fact between 20 degree Celsius and 70 degree Celsius.
In one embodiment of this invention, second drive signal is greater than less than first drive signal.
In one embodiment of this invention, Image sensor apparatus comprises a line sweep formula charge coupled cell (Line Scan CCD).
In one embodiment of this invention, detect board and also comprise a power supply device, be electrically connected probe mechanism and first drive signal be provided or second drive signal.
In one embodiment of this invention; Detect board and also comprise an optical detection apparatus; Be arranged at the top of light-emitting component and be installed on the transfer table; Wherein transfer table is suitable for the mobile optical pick-up unit, and optical detection apparatus is suitable for the optical characteristics that the sensing light-emitting component produced when driving and does measurement.
In one embodiment of this invention; Detect board and also comprise one first mobile device and one second mobile device; Wherein first mobile device is positioned at the top of substrate stage and is suitable for traveling probe mechanism; So that probe mechanism toward substrate stage near or away from, second mobile device is positioned at the below of substrate stage and is suitable for mobile heating device and cooling device so that the past substrate stage of heating arrangement and cooling device one of which near.
In one embodiment of this invention, detect board and also comprise at least one inflatable body, be positioned at a side or two sides of substrate stage, wherein inflatable body is suitable for providing an air-flow on light-emitting component, with the cooling light-emitting component.
In one embodiment of this invention; Detect board and also comprise a computing host and an interface card; Computing host is through interface card, with traveling probe mechanism, heating arrangement, cooling device, transfer table one of which at least, or pick-up image sensing apparatus and the temperature sensing device data of one of which at least.
In one embodiment of this invention, interface card comprises a motion control card or a Frame Grabber.
In one embodiment of this invention, light-emitting component comprises a light-emitting diode light bar (LED lightbar).
The present invention proposes a kind of detection method in addition, and it is suitable for a light-emitting component is carried out optics and electrical detection.This detection method may further comprise the steps at least.At first, a light-emitting component is provided.Then, a probe mechanism is provided, and make probe mechanism toward substrate stage near and contact with light-emitting component.Then, the heating light-emitting component is so that light-emitting component is maintained in one first temperature range.Then, utilize probe mechanism to transmit one first drive signal to light-emitting component, with driven light-emitting element.Then, sensing and the one first luminous image that produced when measuring light-emitting component by first drive.Then, the cooling light-emitting component is so that light-emitting component is maintained in one second temperature range.Afterwards, utilize probe mechanism to transmit one second drive signal to light-emitting component, with driven light-emitting element.Then, sensing and the one second luminous image that is produced when measuring light-emitting component by second drive, wherein second drive signal is greater than first drive signal.
In one embodiment of this invention, make probe mechanism toward substrate stage near and with before light-emitting component contacts, above-mentioned detection method also comprises utilizes an Image sensor apparatus that light-emitting component is positioned.In one embodiment of this invention, before light-emitting component was positioned, above-mentioned detection method more comprises carried out a bar code scan to light-emitting component.
In one embodiment of this invention, after the cooling light-emitting component and before transmitting second drive signal to light-emitting component, above-mentioned detection method also comprises utilizes an Image sensor apparatus, and an outward appearance or a position of light-emitting component are detected.
In one embodiment of this invention, at sensing and after measuring the second luminous image, above-mentioned detection method also comprises light-emitting component is electrically reached optical detection.
The present invention proposes a kind of detection system again, and it is suitable for aforementioned light-emitting component is carried out optics and electrical detection.This detection system comprises aforesaid base plate platform, aforementioned probe mechanism, aforementioned heating arrangement, aforementioned cooling device and aforementioned Image sensor apparatus.Light-emitting component is disposed on the substrate stage.Probe mechanism toward substrate stage near and contact with light-emitting component.Heating arrangement heating light-emitting component so that light-emitting component is maintained in one first temperature range, and utilizes probe mechanism to transmit one first drive signal to light-emitting component, with driven light-emitting element.Cooling device cooling light-emitting component is so that light-emitting component is maintained in one second temperature range and utilizes probe mechanism to transmit one second drive signal to light-emitting component, with driven light-emitting element.The one first luminous image that Image sensor apparatus is produced when being suitable for sensing and measuring light-emitting component by first drive; And sensing and the one second luminous image that produced when measuring light-emitting component by second drive, wherein second drive signal is greater than first drive signal.
In one embodiment of this invention, make probe mechanism toward substrate stage near and with before light-emitting component contacts, said detecting system also comprises utilizes an Image sensor apparatus that light-emitting component is positioned.In one embodiment of this invention, before light-emitting component was positioned, said detecting system also comprises carried out a bar code scan to light-emitting component.
In one embodiment of this invention, after the cooling light-emitting component and before transmitting second drive signal to light-emitting component, said detecting system also comprises utilizes an Image sensor apparatus, and an outward appearance or a position of light-emitting component are detected.
In one embodiment of this invention, at sensing and after measuring the second luminous image, said detecting system also comprises light-emitting component is electrically reached optical detection.
Based on above-mentioned; Of the present invention through substrate stage, probe mechanism, heating arrangement, cooling device, Image sensor apparatus, temperature sensing device and transfer table are integrated, therefore can reduce volume and the length that line is produced in detection required when detecting light-emitting component greatly.Meaning is that the detection board of present embodiment can not move under the situation of the light-emitting component that is positioned at substrate stage, carries out high temperature detection, low temperature detection and optical quality detection.Therefore the detection board of present embodiment overall volume and the quantity that just can reduce the traditional detection board greatly.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended accompanying drawing to elaborate as follows.
Description of drawings
Fig. 1 is the rough schematic of the detection board of one embodiment of the invention;
Fig. 2 is the sectional perspective synoptic diagram of practical implementation of the detection board of Fig. 1;
Fig. 3 is the local enlarged diagram of the detection board of Fig. 2;
Fig. 4 is the schematic flow sheet of the detection method of one embodiment of the invention.
The main element symbol description
1000: detect board
1010: light-emitting component
1030: computing host
1040: interface card
1100: substrate stage
1200: probe mechanism
1300: heating arrangement
1400: cooling device
1420: inflatable body
1500: Image sensor apparatus
1600: temperature sensing device
1700: transfer table
1800: power supply device
1900: optical detection apparatus
M1: first mobile device
T1: first temperature range
S101～S108, S201～S208: step
S1: first drive signal
T2: second temperature range
S2: second drive signal
M2: second mobile device
Embodiment
Fig. 1 is the rough schematic of the detection board of one embodiment of the invention, and Fig. 2 then is the sectional perspective synoptic diagram of practical implementation of the detection board of Fig. 1, and Fig. 3 then is the local enlarged diagram of the detection board of Fig. 2.Please be simultaneously with reference to figure 1, Fig. 2 and Fig. 3, the detection board 1000 of present embodiment is suitable for a light-emitting component 1010 is carried out optics and electrical detection.Particularly, detect board 1000 and comprise a substrate stage 1100, a probe mechanism 1200, a heating arrangement 1300, a cooling device 1400, an Image sensor apparatus 1500, a temperature sensing device 1600 and a transfer table 1700.Light-emitting component 1010 is disposed on the substrate stage 1100.In the present embodiment, substrate stage 1100 be with like conveyer belt apparatus 1120 that Fig. 2 and Fig. 3 were illustrated as illustrating, but be not limited thereto.Particularly, conveyer belt apparatus 1120 can be in order to carrying light-emitting component 1010, and can transmit light-emitting component 1010 to the fixed position.In addition, the light-emitting component 1010 of present embodiment for example is a kind of lamp bar (LED light bar) of light emitting diode.
Please continue with reference to figure 1, Fig. 2 and Fig. 3, heating arrangement 1300 is arranged at the below of substrate stage 1100 and is suitable for heating light-emitting component 1010, so that light-emitting component 1010 is maintained in the one first temperature range T1.In the present embodiment, heating arrangement 1300 can be to adopt heat block or heating plate.Particularly, after the manufacture craft end of light-emitting component 1010, then can measure light-emitting component 1010 driven optical appearance that electrically reaches when high temperature earlier at the reflow stove.Therefore; The detection board 1000 of present embodiment just can be through being arranged at substrate stage 1100 1300 pairs of light-emitting components 1010 of heating arrangement of below heat; And light-emitting component 1010 is maintained in the first temperature range T1, wherein this first temperature range T1 drops in fact between 120 degree Celsius and 200 degree Celsius.Need to prove that before 1300 pairs of light-emitting components 1010 of heating arrangement heated, aforesaid probe mechanism 1200 just got elder generation toward moving near substrate stage 1100, makes probe mechanism 1200 to contact and to be electrically connected with light-emitting component 1010.
Then, when 1300 pairs of light-emitting components 1010 of heating arrangement calorified in the first temperature range T1, probe mechanism just can be transmitted one first drive signal S1 to light-emitting component 1,010 1200 this moments, with driven light-emitting element 1010, made light-emitting component 1010 produce light.In the present embodiment, detecting board 1000 can have and comprise a power supply device 1800, and wherein power supply device 1800 is electrically connected probe mechanism 1200 and the aforementioned first drive signal S1 is provided.In the present embodiment, the first drive signal S1 for example is a current signal, and wherein the size of this current signal can be 50uA in fact.
In addition, the luminous image that Image sensor apparatus 1500 is produced when being arranged at the top of light-emitting component 1010 and being suitable for sensing light-emitting component 1010 by driving illustrates like Fig. 1, Fig. 2 and Fig. 3.Particularly; When probe mechanism 1200 driven light-emitting element 1010 in the aforementioned first temperature range T1; And when making light-emitting component 1010 produce light; The light that the detection board 1000 of present embodiment just can be produced when driving through Image sensor apparatus 1500 sensing light-emitting components 1010, and whether the light emitting diode on the fast detecting light-emitting diode light bar all has and is lighted simultaneously, thus judge whether light-emitting component 1010 is effective light-emitting component under the state of high temperature.In the present embodiment, Image sensor apparatus 1500 can adopt a kind of line sweep formula charge coupled cell 1520 (Line Scan CCD), and it can scan the luminous situation with sensing light-emitting component 1010 apace.Adopt the artificial vision to judge whether a plurality of light emitting diodes on the light-emitting diode light bar have compared to tradition and lighted, the detection board 1000 of present embodiment has fast and the advantage of precision.
Please continue with reference to figure 1, Fig. 2 and Fig. 3, temperature sensing device 1600 is arranged at the top of light-emitting component 1010, in order to the present temperature of sensing light-emitting component 1010.Particularly, temperature sensing device 1600 for example is an infrared heat induction installation, and it can be under the situation of touch luminous element 1010 not, directly the present temperature of sensing light-emitting component.Therefore; Whether the detection board 1000 of present embodiment just can be monitored aforesaid heating arrangement 1300 at any time through temperature sensing device 1600 and light-emitting component 1010 is heated in the first temperature range T1, then can not make heating arrangement 1300 continue heating in the first temperature range T1 if wherein be heated to.
In detecting board 1000, cooling device 1400 is to be arranged at the below of substrate stage 1100 and to be suitable for cooling off light-emitting component 1010, so that light-emitting component 1010 is maintained in the one second temperature range T2, illustrates like Fig. 1, Fig. 2 and Fig. 3.In the present embodiment, cooling device 1400 comprises a circulation or a gas ejecting system.Particularly, when light-emitting component 1010 after the luminous situation that detects light-emitting component 1010 under the condition of high temperature, then can measure light-emitting component 1010 when low temperature driven electrically and optical appearance.Therefore; The detection board 1000 of present embodiment just can be through being arranged at substrate stage 1100 1400 pairs of light-emitting components 1010 of cooling device of below cool off; And light-emitting component 1010 is maintained in the second temperature range T2, wherein this second temperature range T2 drops in fact between 20 degree Celsius and 70 degree Celsius.Likewise, before 1400 pairs of light-emitting components 1010 of cooling device cooled off, aforesaid probe mechanism 1200 must contact and be electrically connected with light-emitting component 1010 earlier.That is to say that after aforementioned high temperature detected, probe mechanism 1200 can still keep contacting with light-emitting component 1010 in fact, conveniently to carry out directly just to apply voltage or current signal on light-emitting component 1010 when follow-up low temperature detects.In other embodiments, probe mechanism 1200 also can and not contact with light-emitting component in high temperature detection back elder generation's substrate stage 1100 away from keyboard, and this part is decided by user's demand.
Then; When cooling device 1400 cools off light-emitting component 1010 in the second temperature range T2; Probe mechanism just can be transmitted one second drive signal S2 to light-emitting component 1,010 1200 this moments; With driven light-emitting element 1010, make light-emitting component 1010 produce light, wherein the second drive signal S2 is greater than less than the first drive signal S1.Likewise, also the aforementioned second drive signal S2 can be provided through the power supply device 1800 that is electrically connected with probe mechanism 1200.In the present embodiment, the second drive signal S2 for example is a current signal, and wherein the size of this current signal can be 120mA in fact.
Similarly; When probe mechanism 1200 driven light-emitting element 1010 in the aforementioned second temperature range T2; And when making light-emitting component 1010 produce light; The light that the detection board 1000 of present embodiment just can be produced when driving through Image sensor apparatus 1500 sensing light-emitting components 1010, and whether the light emitting diode on the fast detecting light-emitting diode light bar has under cryogenic conditions and is lighted simultaneously, thus judge whether light-emitting component 1010 is effective light-emitting component under the state of low temperature.
Specifically; In order to improve the speed of cooling, detect board 1000 and also comprise at least one inflatable body 1420, it is positioned at a side or two sides of substrate stage 1100; Wherein inflatable body 1420 is suitable for providing an air-flow on light-emitting component 1010, with cooling light-emitting component 1010.
In the present embodiment; Detect board 1000 and can comprise one second mobile device M2; Wherein the second mobile device M2 is the below that is positioned at substrate stage 1100; It mainly is to be used for mobile heating device 1300 and cooling device 1400, with in the high temperature detected state under can with heating arrangement 1300 toward substrate stages 1100 near, or under the low temperature detected state can with cooling device 1400 past substrate stages 1100 near.That is to say that the second mobile device M2 is used under the different temperatures detected state, the one of which of mobile heating device 1300 and cooling device 1400.
In addition; In order to make Image sensor apparatus 1500 scan the luminous situation with sensing light-emitting component 1010 apace; Therefore transfer table 1700 is the tops that are arranged at light-emitting component 1010; And Image sensor apparatus 1500 is installed on the transfer table 1700, and thus, transfer table 1700 just can be suitable for movable image sensing apparatus 1500 and the scanning and the luminous situation of sensing light-emitting component 1010 apace.In addition, temperature sensing device 1600 also can be installed on the transfer table 1700, so, but the just removable temperature sensing device 1600 of transfer table 1700 and make the temperature of every light emitting diode on the temperature sensing device 1600 sense light bars, but be not limited thereto.
Detect at aforementioned high temperature and to detect with low temperature, Image sensor apparatus 1500 mainly is to be used for the action whether sensing light-emitting component 1010 can light under different temperatures, but not detects the luminescent quality of light-emitting component 1010.Therefore; Detect board 1000 and also can comprise an optical detection apparatus 1900; It is arranged at the top of said light-emitting component and can be installed on the transfer table 1700; Wherein transfer table 1700 is suitable for mobile optical pick-up unit 1900, and optical detection apparatus 1900 is suitable for the optical characteristics that sensing light-emitting component 1010 produced when driving and does measurement.Particularly, optical detection apparatus 1900 can be sleeve or the integrating sphere that measures MCD (mcd of light intensity unit), and the effect of the two is respectively optical strength and the luminous flux that is used for measuring light-emitting component 1010.
In the present embodiment, detecting board 1000 can be a kind of robotization board.Particularly; Detect board 1000 and also can comprise a computing host 1030 and an interface card 1040; Wherein computing host 1030 can be passed through interface card 1040; And operate the aforesaid first mobile device M1, the second mobile device M1 and transfer table 1700, thus, probe mechanism 1200, heating arrangement 1300, cooling device 1400, transfer table 1700 one of which at least just can be moved through the operation of computing host.In addition, computing host also can be through interface card 1040 and fechtable Image sensor apparatus 1500 and temperature sensing device 1600 data of one of which at least, as: image data or temperature data.In other words, this interface card 1040 for example is a motion control card or a Frame Grabber.
Know based on above-mentioned; Therefore the detection board 1000 of present embodiment can reduce volume and the length that line is produced in detection required when detecting light-emitting component 1100 greatly through substrate stage 1100, probe mechanism 1200, heating arrangement 1300, cooling device 1400, Image sensor apparatus 1500, temperature sensing device 1600 and transfer table 1700 are integrated.Particularly; Traditionally for light-emitting component (as: light-emitting diode light bar) is carried out various optical detections and electrical detection; The board of various optical detections and electrical detection can be set usually; And, just can measure the optical property and the electrical performance of light-emitting component through light-emitting component being sent in regular turn in these detection boards.Yet the shared space of these boards just can't be reduced effectively, and the product line that meaning promptly detects light-emitting component just can't be shortened.
Review the structure that the detection board 1000 of present embodiment is disclosed; Light-emitting component can be arranged on the substrate stage; And, only need move required pick-up unit and just can reach the purpose that detects light-emitting component carrying out the high temperature detection, need not moving light-emitting component when the low temperature detection detects with optical quality.Therefore the detection board 1000 of present embodiment overall volume and the quantity that just can reduce the traditional detection board greatly.Moreover the detection board 1000 of present embodiment is through the use of the first mobile device M1, the second mobile device M2 and transfer table 1700, and the control of collocation computing host, and has the advantage of robotization.In addition; The use instead artificial visually examine of the detection board 1000 of present embodiment through Image sensor apparatus 1500 check whether a plurality of light emitting diodes on the light-emitting diode light bar have and lighted, so the detection board 1000 of present embodiment has fast, the advantage of low human cost and precision.
Based on above-mentioned, present embodiment also can propose a kind of detection method, and it is suitable for aforesaid light-emitting component 1010 is carried out optics and electrical detection, and is as shown in Figure 4.Particularly, this detection method may further comprise the steps at least.Please refer to the step S101 of Fig. 4, at first, aforesaid light-emitting component 1010 is provided, wherein light-emitting component 1010 for example is a light-emitting diode light bar.
Then, carry out step S102, aforesaid probe mechanism 1200 be provided, and make probe mechanism 1200 toward aforesaid substrate stages 1100 near and contact with light-emitting component 1010, wherein can be with reference to above stated specification about the flowing mode of doing of probe mechanism 1200.
Then, carry out step S103, heating light-emitting component 1010, so that light-emitting component 1010 is maintained in the aforesaid first temperature range T1, wherein type of heating can adopt the mentioned method of heating arrangement 1300, repeats no more at this.Particularly, in the process of heating light-emitting component 1010, whether aforesaid temperature sensing device 1600 sensing light-emitting components 1010 capable of using are in T1 in first temperature range, shown in the step S301 of Fig. 4.In detail, if when temperature sensing device sensing light-emitting component 1010 has been in first temperature range T1, just can continue follow-up step S104; Otherwise,, just can heat light-emitting component 1010 if when temperature sensing device sensing light-emitting component 1010 is not in first temperature range T1 as yet.
Then, carry out step S104, utilize probe mechanism 1200 to transmit the aforesaid first drive signal S1 to light-emitting component 1010, with driven light-emitting element 1010.Wherein the first drive signal S1 can be to use aforesaid power supply device to implement, and please refer to aforementionedly, no longer explains at this.
Then, carry out step S105, sensing and the first luminous image that is produced when measuring light-emitting component 1010 by the first drive S1.Wherein sensing and the mode that measures light-emitting component 1010 can adopt the mentioned method of aforesaid Image sensor apparatus 1500, repeat no more at this.So far, then accomplish the detection method that a kind of high temperature detects.
Then, carry out step S106, cooling light-emitting component 1010, so that light-emitting component 1010 is maintained in the aforesaid second temperature range T2, wherein the mode of cooling can adopt the mentioned method of cooling device 1400, repeats no more at this.Particularly, in the process of cooling light-emitting component 1010, whether aforesaid temperature sensing device 1600 sensing light-emitting components 1010 capable of using are in T2 in second temperature range, shown in the step S302 of Fig. 4.In detail, if when temperature sensing device sensing light-emitting component 1010 has been in first temperature range T1, just can continue follow-up step S107; Otherwise,, just can cool off light-emitting component 1010 if when temperature sensing device sensing light-emitting component 1010 is not in second temperature range T2 as yet.
Afterwards, carry out step S107, utilize probe mechanism 1010 to transmit the aforesaid second drive signal S2 to light-emitting component 1010, with driven light-emitting element 1010.Wherein the second drive signal S2 likewise can use aforesaid power supply device to implement, and please refer to aforementionedly, no longer explains at this.
Then, carry out step S108, sensing also measures the second luminous image that is produced when light-emitting component 1010 is driven by the second drive signal S2, and wherein the second drive signal S2 is greater than the first drive signal S1.Likewise, sensing and the mode that measures light-emitting component 1010 can adopt the mentioned method of aforesaid Image sensor apparatus 1500, repeat no more at this.So far, then accomplish the detection method that detects for a kind of low temperature.
In the detection method of Fig. 4; Make probe mechanism 1200 toward substrate stage 1100 near and with before light-emitting component 1010 contacts; Above-mentioned detection method also can comprise utilizes 1500 pairs of light-emitting components 1010 of aforesaid Image sensor apparatus to position, shown in step S201.In the present embodiment, before light-emitting component 1010 is positioned, also can carry out a bar code scan, shown in the step S202 to light-emitting component 1010.
Need to prove; After cooling light-emitting component 1010 and transmit the second drive signal S2 to the light-emitting component 1010; Above-mentioned detection method also comprises utilizes aforesaid Image sensor apparatus 1500, an outward appearance or a position of light-emitting component 1010 is detected, shown in step S203.In addition, after carrying out sensing and measuring the step of the second luminous image, above-mentioned detection method also can be carried out electrical detection to light-emitting component 1010, and shown in step S204, wherein electrical detection can be that Vf detects, Δ Vf detects and leakage current detects.Further; After light-emitting component 1010 is carried out the step of electrical detection; The optical characteristics that 1900 pairs of light-emitting components 1010 of above-mentioned detection method aforesaid optical detection apparatus also capable of using are produced when driving measures; Shown in step S205, wherein the measurement of optical characteristics can be optical strength and the luminous flux that measures light-emitting component 1010.
Based on above-mentioned, the present invention also can provide a kind of detection system, and it is suitable for aforementioned light-emitting component is carried out optics and electrical detection.This detection system comprises aforesaid base plate platform, aforementioned probe mechanism, aforementioned heating arrangement, aforementioned cooling device and aforementioned Image sensor apparatus.Light-emitting component is disposed on the substrate stage.Probe mechanism toward substrate stage near and contact with light-emitting component.Heating arrangement heating light-emitting component so that light-emitting component is maintained in one first temperature range, and utilizes probe mechanism to transmit one first drive signal to light-emitting component, with driven light-emitting element.Cooling device cooling light-emitting component is so that light-emitting component is maintained in one second temperature range and utilizes probe mechanism to transmit one second drive signal to light-emitting component, with driven light-emitting element.The one first luminous image that Image sensor apparatus is produced when being suitable for sensing and measuring light-emitting component by first drive; And sensing and the one second luminous image that produced when measuring light-emitting component by second drive, wherein second drive signal is greater than first drive signal.
In detection system, probe mechanism toward substrate stage near and with before light-emitting component contacts, detection system also comprises utilizes an Image sensor apparatus that light-emitting component is positioned.In addition, before light-emitting component was positioned, detection system also comprises carried out a bar code scan to light-emitting component.
In detection system, after the cooling light-emitting component and before transmitting second drive signal to light-emitting component, detection system also comprises utilizes an Image sensor apparatus, and an outward appearance or a position of light-emitting component are detected.In addition, at sensing and after measuring the second luminous image, detection system also comprises carries out electrical detection to light-emitting component.
In detection system, after the cooling light-emitting component and before transmitting second drive signal to light-emitting component, detection system also comprises utilizes an Image sensor apparatus, and an outward appearance or a position of light-emitting component are detected.In addition, at sensing and after measuring the second luminous image, detection system also comprises carries out electrical detection to light-emitting component.
In detection system, after light-emitting component was carried out electrical detection, detection system also comprises utilized an optical detection apparatus that the optical characteristics that light-emitting component is produced when driving is measured.In addition, after the heating light-emitting component and before the driven light-emitting element, detection system also comprises utilizing a temperature sensing device sensing light-emitting component whether to be maintained in first temperature range.
In addition, after the cooling light-emitting component and before the driven light-emitting element, detection system also comprises utilizing a temperature sensing device sensing light-emitting component whether to be maintained in second temperature range.
Need to prove; In detection system; The configuration mode of heating arrangement and cooling device is except can being to adopt to coexist as in the same detection board like what Fig. 1 illustrated; In other possible embodiment, heating arrangement and cooling device also can be to lay respectively in the different platform, to carry out independence heating or cooling light-emitting component.
In sum, detection board of the present invention, detection method and detection system have advantage at least.Through substrate stage, probe mechanism, heating arrangement, cooling device, Image sensor apparatus, optical detection apparatus, temperature sensing device and transfer table are integrated, therefore can reduce volume and the length that line is produced in detection required when detecting light-emitting component greatly.Meaning is that the detection board of present embodiment can not move under the situation of the light-emitting component that is positioned at substrate stage, carries out high temperature detection, low temperature detection and optical quality detection.Therefore the detection board of present embodiment overall volume and the quantity that just can reduce the traditional detection board greatly.
Moreover the detection board of present embodiment is through the use of first mobile device, second mobile device and transfer table, and the control of collocation computing host, and has the advantage of robotization.
In addition; The use instead artificial visually examine of the detection board of present embodiment through Image sensor apparatus check whether a plurality of light emitting diodes on the light-emitting diode light bar have and lighted, so the detection board of present embodiment has fast, the advantage of low human cost and precision.
Above-describedly be merely preferred embodiment of the present invention, can not limit the scope that the present invention implements with this, the simple equivalent of promptly doing according to claim of the present invention and invention description generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention in addition or claim need not reached whole purposes or advantage or the characteristics that the present invention discloses.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (32)
1. one kind is detected board, is suitable for light-emitting component is carried out optics and electrical detection, and said detection board comprises:
Substrate stage, wherein said light-emitting component are disposed on the said substrate stage;
Probe mechanism is arranged at said substrate stage top, and said probe mechanism be suitable for toward said substrate stage near and contact with said light-emitting component;
Heating arrangement; Be arranged at the below of said substrate stage and be suitable for heating said light-emitting component; So that said light-emitting component is maintained in one first temperature range; In the time of wherein in said light-emitting component is in said first temperature range, the said probe mechanism that contacts with said light-emitting component is suitable for transmitting one first drive signal to said light-emitting component, to drive said light-emitting component;
Cooling device; Be arranged at the below of said substrate stage and be suitable for cooling off said light-emitting component; So that said light-emitting component is maintained in one second temperature range; In the time of wherein in said light-emitting component is in said second temperature range, the said probe mechanism that contacts with said light-emitting component is suitable for transmitting one second drive signal to said light-emitting component, to drive said light-emitting component;
Image sensor apparatus is arranged at the top of said light-emitting component and is suitable for the luminous image that the said light-emitting component of sensing is produced when driving;
Temperature sensing device is arranged at the top of said light-emitting component, in order to the present temperature of the said light-emitting component of sensing; And
Transfer table is arranged at the top of said light-emitting component, and said Image sensor apparatus is installed on the said transfer table, and wherein said transfer table is suitable for moving said Image sensor apparatus.
2. detection board as claimed in claim 1, wherein said substrate stage comprises conveyer belt apparatus, is suitable for carrying and transmitting said light-emitting component.
3. detection board as claimed in claim 1, wherein said heating arrangement comprises heat block or heating plate.
4. detection board as claimed in claim 1, wherein said first temperature range drop in fact between 120 degree Celsius and 200 degree Celsius.
5. detection board as claimed in claim 1, wherein said cooling device comprise a circulation or a gas ejecting system.
6. detection board as claimed in claim 1, wherein said second temperature range drop in fact between 20 degree Celsius and 70 degree Celsius.
7. detection board as claimed in claim 1, wherein said second drive signal is greater than less than said first drive signal.
8. detection board as claimed in claim 1, wherein said Image sensor apparatus comprise a line sweep formula charge coupled cell (Line Scan CCD).
9. detection board as claimed in claim 1 also comprises a power supply device, is electrically connected said probe mechanism and said first drive signal is provided or said second drive signal.
10. detection board as claimed in claim 1; Also comprise an optical detection apparatus; Be arranged at the top of said light-emitting component and be installed on the said transfer table; Wherein said transfer table is suitable for moving said optical detection apparatus, and said optical detection apparatus is suitable for the optical characteristics that the said light-emitting component of sensing produced when driving and does measurement.
11. detection board as claimed in claim 1; Also comprise one first mobile device and one second mobile device; Wherein said first mobile device is positioned at the top of said substrate stage and is suitable for moving said probe mechanism; So that said probe mechanism toward said substrate stage near or away from; Said second mobile device is positioned at the below of said substrate stage and is suitable for moving said heating arrangement and said cooling device so that the past said substrate stage of said heating arrangement and said cooling device one of which near.
12. detection board as claimed in claim 1 also comprises at least one inflatable body, is positioned at a side or two sides of said substrate stage, wherein said inflatable body is suitable for providing an air-flow on said light-emitting component, to cool off said light-emitting component.
13. detection board as claimed in claim 1; Also comprise computing host and interface card; Said computing host is through said interface card; Moving said probe mechanism, said heating arrangement, said cooling device, said transfer table one of which at least, or capture said Image sensor apparatus and the said temperature sensing device data of one of which at least.
14. detection board as claimed in claim 13, wherein said interface card comprises motion control card or Frame Grabber.
15. detection board as claimed in claim 1, wherein said light-emitting component comprise light-emitting diode light bar (LED light bar).
16. a detection method is suitable for a light-emitting component is carried out optics and electrical detection, said detection method comprises:
One light-emitting component is provided;
One probe mechanism is provided, and make said probe mechanism toward said substrate stage near and contact with said light-emitting component;
Heat said light-emitting component, so that said light-emitting component is maintained in one first temperature range;
Utilize said probe mechanism to transmit one first drive signal to said light-emitting component, to drive said light-emitting component;
Sensing and the one first luminous image that is produced when measuring said light-emitting component by said first drive;
Cool off said light-emitting component, so that said light-emitting component is maintained in one second temperature range;
Utilize said probe mechanism to transmit one second drive signal to said light-emitting component, to drive said light-emitting component; And
Sensing and the one second luminous image that is produced when measuring said light-emitting component by said second drive, wherein said second drive signal is greater than said first drive signal.
17. detection method as claimed in claim 16, make said probe mechanism toward said substrate stage near and with before said light-emitting component contacts, also comprise:
Utilize an Image sensor apparatus that said light-emitting component is positioned.
18. detection method as claimed in claim 17 before said light-emitting component is positioned, also comprises:
Said light-emitting component is carried out a bar code scan.
19. detection method as claimed in claim 16 after the said light-emitting component of cooling and before transmitting said second drive signal to said light-emitting component, also comprises:
Utilize an Image sensor apparatus, an outward appearance or a position of said light-emitting component are detected.
20. detection method as claimed in claim 16 at sensing and after measuring the said second luminous image, also comprises:
Said light-emitting component is carried out electrical detection.
21. detection method as claimed in claim 20 after said light-emitting component is carried out electrical detection, also comprises:
Utilize an optical detection apparatus that the optical characteristics that said light-emitting component is produced when driving is measured.
22. detection method as claimed in claim 16 after the said light-emitting component of heating and before driving said light-emitting component, also comprises:
Utilize the said light-emitting component of a temperature sensing device sensing whether to be maintained in first temperature range.
23. detection method as claimed in claim 16 after the said light-emitting component of cooling and before driving said light-emitting component, also comprises:
Utilize the said light-emitting component of a temperature sensing device sensing whether to be maintained in second temperature range.
24. a detection system is suitable for a light-emitting component is carried out optics and electrical detection, said detection system comprises:
Substrate stage, wherein said light-emitting component are disposed on the said substrate stage;
Probe mechanism, toward said substrate stage near and contact with said light-emitting component;
Heating arrangement heats said light-emitting component, so that said light-emitting component is maintained in one first temperature range, and utilizes said probe mechanism to transmit one first drive signal to said light-emitting component, to drive said light-emitting component;
Cooling device cools off said light-emitting component, so that said light-emitting component is maintained in one second temperature range and utilize said probe mechanism to transmit one second drive signal to said light-emitting component, to drive said light-emitting component; And
Image sensor apparatus; Sensing and the one first luminous image that is produced when measuring said light-emitting component by said first drive; And sensing and the one second luminous image that produced when measuring said light-emitting component by said second drive, wherein said second drive signal is greater than said first drive signal.
25. detection system as claimed in claim 24, wherein make said probe mechanism toward said substrate stage near and with before said light-emitting component contacts, also comprise and utilize Image sensor apparatus that said light-emitting component is positioned.
26. detection system as claimed in claim 25 wherein before said light-emitting component is positioned, also comprises said light-emitting component is carried out a bar code scan.
27. detection system as claimed in claim 24; Wherein after the said light-emitting component of cooling and before transmitting said second drive signal to said light-emitting component; Also comprise and utilize Image sensor apparatus, an outward appearance or a position of said light-emitting component are detected.
28. detection system as claimed in claim 24 wherein at sensing and after measuring the said second luminous image, also comprises said light-emitting component is carried out electrical detection.
29. detection system as claimed in claim 28 wherein after said light-emitting component is carried out electrical detection, also comprises and utilizes an optical detection apparatus that the optical characteristics that said light-emitting component is produced when driving is measured.
30. detection system as claimed in claim 24 wherein after the said light-emitting component of heating and before driving said light-emitting component, also comprises utilizing the said light-emitting component of a temperature sensing device sensing whether to be maintained in first temperature range.
31. detection system as claimed in claim 24 wherein after the said light-emitting component of cooling and before driving said light-emitting component, also comprises utilizing the said light-emitting component of a temperature sensing device sensing whether to be maintained in second temperature range.
32. detection system as claimed in claim 24, wherein said heating arrangement and said cooling device coexist as in the same detection board, or lay respectively in the different platform, independently to heat or to cool off said light-emitting component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099142174A TWI454722B (en) | 2010-12-03 | 2010-12-03 | Inspection machine, inspecting method and inspecting system |
| TW099142174 | 2010-12-03 |
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| CN102486536A true CN102486536A (en) | 2012-06-06 |
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| CN201110059097XA Pending CN102486536A (en) | 2010-12-03 | 2011-03-11 | Detection machine, detection method and detection system |
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| TW (1) | TWI454722B (en) |
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Application publication date: 20120606 |