CN102323528A - Luminescence measuring apparatus, Luminescence assay, control program and readable medium recording program performing - Google Patents
Luminescence measuring apparatus, Luminescence assay, control program and readable medium recording program performing Download PDFInfo
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- CN102323528A CN102323528A CN2011100819137A CN201110081913A CN102323528A CN 102323528 A CN102323528 A CN 102323528A CN 2011100819137 A CN2011100819137 A CN 2011100819137A CN 201110081913 A CN201110081913 A CN 201110081913A CN 102323528 A CN102323528 A CN 102323528A
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- 238000004020 luminiscence type Methods 0.000 title claims abstract description 60
- 238000007422 luminescence assay Methods 0.000 title claims description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 85
- 238000007689 inspection Methods 0.000 claims abstract description 67
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003384 imaging method Methods 0.000 claims description 30
- 238000012545 processing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 16
- 239000004065 semiconductor Substances 0.000 description 33
- 238000010586 diagram Methods 0.000 description 14
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- 238000003556 assay Methods 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
- G01J1/122—Visual exposure meters for determining the exposure time in photographical recording or reproducing
- G01J1/124—Visual exposure meters for determining the exposure time in photographical recording or reproducing based on the comparison of the intensity of measured light with a comparison source or comparison illuminated surface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
- G01J1/14—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means using comparison with a surface of graded brightness
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects
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- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
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Abstract
The present invention relates to luminescence measuring apparatus and method and program and medium.Not only can be easily and measure the luminous quantity of an optical element of inspection exactly; But also can not use existing such identification id circuit ground to measure the luminous quantity of a plurality of optical elements of inspection easily and exactly, and can be easily and measure exactly check the luminous directive property of optical element, to adhere to dust bad.Have: the address designating unit (41) of from a plurality of light receivers of luminance of shooting LED, one or more light receivers being carried out the address appointment; Comparison is from the value and the reference value of the image pickup signal of one or more light receivers of address designating unit (41) appointment; Being lower than in the value of image pickup signal that to be judged to be light quantity under the situation of reference value bad, is to be judged to be the good light quantity identifying unit (42) of light quantity under the situation more than the reference value in the value of image pickup signal; And comparison is judged the directive property identifying unit (43) that the luminous directive property of LED very denys from the value and the reference value of the image pickup signal of one or more light receivers of address designating unit (41) appointment.
Description
Technical field
The present invention relates to check optical element such as light emitting diode (below be called LED) luminous luminescence measuring apparatus and Luminescence assay, be used to the control program that makes computing machine carry out this Luminescence assay, the readable medium recording program performing that stores this control program.
Background technology
In recent years, from the viewpoint of earth environment protection,, in the process of the necessity of recognizing LED, also very high to the requirement of low price LED as small-sized, long-life, the energy-conservation illuminace component of using that do not contain hazardous substance etc.
Existing LED measures, and LED and optical receiving sensor (photodiode) are disposed with man-to-man mode opposed (in opposite directions), converts light into electric weight and measures the luminous quantity of LED through each optical receiving sensor.This be because; Make under the simultaneously luminous situation of a plurality of LED; When each optical receiving sensor converts light signal into electric signal by light receiving surface unit, luminous when each optical receiving sensor side is to a plurality of LED, can not distinguish as the luminous quantity of each LED.
Thus,, make it, measure when then can carry out a plurality of LED with man-to-man mode opposed (in opposite directions) if a plurality of LED are provided with the optical receiving sensor of same number.But, or the device price is increased, or can make plant bulk become big, or can cause because of the sensitivity variations of optical receiving sensor and measure the precision existing problems, present situation is, do not take such mode but carries out single mensuration with an optical receiving sensor.
Figure 10 is the synoptic diagram that is used to explain the major part structure example of existing luminescence measuring apparatus.
In Figure 10, on wafer 101, be and be equipped with a plurality of semi-conductor chips 102 that are provided with as the LED of light-emitting component rectangularly.Existing luminescence measuring apparatus 100 can put on the pad 103 as the probe contact element with supply voltage from probe 104 for each of each semi-conductor chip 102, makes LED luminous and check.Can or utilize the axle of integrating sphere to go up the luminous quantity that mensuration machine 105 is measured this LED through the PD mode, whether the luminous quantity that detects this mensuration be bad.Like this, successively each semi-conductor chip 102 is measured the luminous quantity of its LED.
Like this, in existing luminescence measuring apparatus 100,, there is the time taking problem of luminous quantity meeting of the LED that measures all chips owing to successively each semi-conductor chip 102 is measured the luminous quantity of its LED.Be head it off, the luminous quantity that has proposed to measure a plurality of LED simultaneously is to shorten the patent documentation 1 of minute.
In patent documentation 1, its method is in order to measure the luminous quantity of a plurality of LED simultaneously, to make each LED measure the circuit that circuit produces the ID signal and packed into, the signal of the ID signal of the identification signal which LED the synthetic expression of luminous signal generation conduct that makes LED is.This composite signal is when converting luminous signal into electric weight by the optical receiving sensor side, and through the special software of difference ID signal and luminous signal, the limit judgement is the mensuration that luminous quantity is carried out on the signal limit of which LED.
Figure 11 is the expression patent documentation 1 disclosed existing LED block diagram of the major part formation example of determinator simultaneously.In addition, what Figure 11 represented is the situation of measuring 2 LED for ease of explanation simultaneously, but through appending same circuit, can measure simultaneously and the corresponding a plurality of LED of its number.
Shown in figure 11, existing LED determinator 200 simultaneously can be divided into from making LED201,202 luminous signal sources to LED201, luminous biasing applying portion A (top of the central dotted line of Figure 11) and these two parts of light quantity detection assay part B (bottom of the central dotted line of Figure 11) of 202.
At first, the action according to luminous biasing applying portion A describes.
ACB is an AC baseband signal generator, and it produces the sinusoidal AC baseband signal of certain amplitude and certain frequency (frequency f b).The part of this signal puts on bias modulator BM201b; At this; Through the identification signal (frequency f 1) of identification generator ID201a, accept modulation such as Modulation and Amplitude Modulation, frequency modulation (PFM) or phase modulation (PM), become AC offset signal (Figure 12 is the Modulation and Amplitude Modulation example).
With its likewise, the part of AC baseband signal also puts on bias modulator BM202b, at this, the identification signal (frequency f 2) through identification generator ID202a is accepted same modulation, becomes the AC offset signal.Because the identification signal (frequency f 1) of these identification generators ID201a and the identification signal (frequency f 2) of identification generator ID202a are different frequencies, thereby the waveform of each AC offset signal is also correspondingly different with it.
Putting on respectively with the analog addition machine from the output of bias modulator BM201b, BM202b is offset signal compositor BC201c, the BC202c of representative, at this, superposes by the dc offset voltage of certain ratio with DC biasing reference level generator DCB.It is very important that this ratio is set with the mode that verily occurs the luminous composition of AC offset signal in the light-receiving side as the back is said, preferably the ratio of 0.1≤AC biasing/DC biasing≤0.9 this scope.
Figure 12 representes one of the waveform example of the output signal of offset signal compositor BC201c, BC202c.
This signal is through the bias level adjustment part BL201d with D/A converter function, the bias level that BL202d is adjusted to regulation.If in advance as each condition determination of program input LED, then can set bias level corresponding with it to bias level adjustment part BL201d, BL202d.
When this signal is offered when applying electric current efferent IP20e1, IP202e as the driving command signal, putting on determined LED with the proportional electric current of this driving command signal respectively as bias current is LED201, LED202.The waveform of this bias current is shown in the waveform of Figure 12; Owing to be on the reference level of DC bias current, to have superposeed by certain ratio to have been carried out the waveform of amplitude-modulated AC bias current by identification signal, thereby the luminous output of LED201, LED202 also becomes inherent luminescence output corresponding with it.
The action of the light quantity detection assay part B of Figure 11 then, is described.
PD is the optical receiving sensor of photodiode and photoelectric tube and so on, can be by optical receiving sensor PD light quantity of the luminous quantity sum of light-receiving LED201, LED202 simultaneously.Therefore, do not need the light between LED201 and LED202 to cover fully.In addition, though the outside incident light that has the original obstruction beyond the luminous output of LED201 and LED202 to measure, also can by after state such with its eliminating.
Optical receiving sensor PD takes place to change with the roughly proportional electric current of incident light total amount, is converted into the variation of voltage through the current-to-voltage convertor IVC that is called as I/V switching amplifier etc.
Then have following composition (a) and reach (b) if this output composition analyzed.
(a) be equivalent to the summation of the luminous DC biasing composition that contains jointly of each LED voltage (below be called DC light-receiving component voltage.）。
(b) be equivalent to and the voltage of the summation of the AC offset signal composition of DC light-receiving component voltage stack (overlapping) (below be called AC light-receiving component voltage, contain the frequency content fb of AC baseband signal).
More than, will contain mentioned component (a) and (b) output voltage and be input to Hi-pass filter HPF, at first remove the DC light-receiving component voltage of mentioned component (a).
Even remove DC light-receiving component voltage (a), owing to also contain the light amount information of each LED pro rata with the AC light-receiving component voltage of (b), thereby can not hinder mensuration.
To be input to phase detectors PSD203 from the output of Hi-pass filter HPF with multiplication function.Simultaneously, ACB applies AC baseband signal (frequency f b) to these phase detectors PSD203 from AC baseband signal generator, two signals is carried out multiplication calculate.Like this, be fb in the frequency of establishing the AC offset signal, establish the identification signal frequency when being f1, f2, then the frequency content of the interchange of Hi-pass filter HPF output is made up of upside wavestrip ingredient f b+f1, fb+f2 and downside wavestrip ingredient f b-f1, fb-f2.Wherein, phase place, regularly corresponding to the AC offset signal only be the fb composition.The voltage that following frequency content therefore, in from the output of phase detectors PSD203, can occur.
Pass through the output that makes these phase detectors PSD203 and to set cut frequency to such an extent that fully be lower than the low-pass filter LPF204 of fb, can remove radio-frequency component, the voltage of (1) and (2) below in the output of low-pass filter LPF204, only occurring.
(1) voltage of the zero Hz that only in the output of Hi-pass filter HPF, just occurs under the situation of the signal of the complete homophase of phase place of existence and AC baseband signal; Be direct current, the level of the AC baseband signal composition in the AC light-receiving component voltage of its voltage level and above-mentioned (b) is proportional.
(2) make the proportional voltage of amplitude of amplitude and identification signal through f1, f2.
In addition, if with low-pass filter LPF204 be replaced into band connection frequency be zero Hz＜＜band connection frequency＜＜band filter of fb, then have only the voltage composition of above-mentioned (2) to pass through.This signal is the summation signals of identification signal.
Only supply to phase detectors PSD201f, the PSD202f that has with the roughly same multiplication computing function of phase detectors PSD203 with what obtain like this by above-mentioned (1) and (2) signal components or the signal that only becomes to be grouped into by the voltage of (2).
On the other hand, supply to phase detectors PSD201f, PSD202f from each identification generator ID201a of luminous biasing applying portion A, the congruent signal of identification signal that ID202a will be corresponding with each system.
When putting on from the signal of phase detectors PSD201f, PSD202f when making cut frequency than identification signal frequency f 1, low-pass filter LPF201g that f2 is low, LPF202g; Radio-frequency component is removed; That is, obtain luminous DC voltage ED201h, the ED202h that produces because of identification signal.This DC voltage ED201h, ED202h are input to the A/D converter ADC of two band scanners more than the passage, its time of carrying out is cut apart selection to obtain measured value.
The prior art document
Patent documentation: TOHKEMY 2004-31460 communique.
In above-mentioned existing luminescence measuring apparatus 100, owing to can not discern the luminous and mensuration luminous quantity of a plurality of LED, thereby it is luminous to measure a plurality of LED simultaneously.Even two light receiving diode PD are being set; Measure simultaneously under the situation of two LED, owing to convert light quantity into electric weight respectively through each light receiving diode PD, thereby system self also needs two; Though it is luminous to measure LED simultaneously, exist system price to become the problem of twice.
In above-mentioned existing luminescence measuring apparatus 200; Compare with above-mentioned existing luminescence measuring apparatus 100; Though can the whole minute that shortens each luminous quantity; But when the LED number that every increase is measured, must also increase the ID circuit that is used to discern mensuration LED, the price of mensuration machine is uprised.In this case, also need two aspects of software/hardware owing to be used for confirming whether accurately to export the not in-problem inspection body of identification id circuit such as ID signal, so can cause the device price further to increase.And then, under the situation of identification id circuit generation problem, owing to be not part replacement but change as the instrumentation substrate, thereby the device stand-by time is increased.In addition, in the synthetic timing of luminous quantity signal and identification id signal, exist under the situation of deviation, can not accurately read in identification signal.In this identification id signal, load under the situation of noise etc., can not be taken into and be identification id signal accurately.
No matter be any; In above-mentioned existing luminescence measuring apparatus 100,200, all be with LED and light receiving diode PD with man-to-man mode arranged opposite, the luminous quantity of LED is converted into the luminous quantity of coulometry LED through photodiode PD; But; The problem that exists is, whether the luminous quantity that only can measure LED reaches reference value, can not check the luminous directive property of LED fully, to adhere to dust bad etc.
Summary of the invention
The invention solves above-mentioned existing problem; Its purpose is; Provide a kind of not only can be easily and measure the luminous quantity of an optical element exactly; But also can not use existing such identification id circuit ground to measure the luminous quantity of a plurality of optical elements of inspection easily and exactly, and can be easily and measure the luminous directive property of inspection optical element exactly, adhere to bad luminescence measuring apparatus of dust and Luminescence assay, be used to make this Luminescence assay of computing machine execution control program, store the readable medium recording program performing of this control program.
Luminescence measuring apparatus of the present invention is checked the luminous of optical element, and it has: imaging apparatus is equipped with the luminous a plurality of light receivers that carry out light-receiving and make a video recording from this optical element; And control part, use image pickup signal from this imaging apparatus, the luminance of this optical element is checked control, thus, realized above-mentioned purpose.
In addition, the control part in the preferred luminescence measuring apparatus of the present invention has: the address designating unit, and from a plurality of light receivers that the luminance of said optical element is made a video recording, one or more light receivers are carried out the address and specify; And the luminance inspection unit, based on the image pickup signal of the one or more light receivers that come free this address designating unit appointment, check the luminance of this optical element.
And then, the address designating unit in the also preferred luminescence measuring apparatus of the present invention carry out from the outside the inspection of the luminance of said optical element, using which pixel pixel address the appointment input or select to set this pixel address in advance.
And then; Address designating unit in the also preferred luminescence measuring apparatus of the present invention is specified the luminescent center that passes said optical element and a near direction or a plurality of pixel address of a plurality of directions, or/and specify this optical element luminescent center a pixel address or comprise a plurality of pixel address of the luminescent center of this optical element and near piece district (block area) thereof.
And then; Luminance inspection unit in the also preferred luminescence measuring apparatus of the present invention has: the light quantity identifying unit; Its value and reference value to the image pickup signal of one or more light receivers of next free said address designating unit appointment compares; Be lower than in the value of this image pickup signal that to be judged to be light quantity under the situation of this reference value bad, good in the value of this image pickup signal for being judged to be light quantity under this situation more than reference value.
And then; Luminance inspection unit in the also preferred luminescence measuring apparatus of the present invention has: the directive property identifying unit; Its value and reference value to the image pickup signal of one or more light receivers of next free said address designating unit appointment compares, and judges that the good of luminous directive property of this light-emitting component denys.
And then; Also preferably in luminescence measuring apparatus of the present invention, have: bad registering unit; It is under the condition of poor in the result of determination of being judged by said light quantity identifying unit and/or said directive property identifying unit, should judge that content registration was in its chip number.
And then, also preferably in luminescence measuring apparatus of the present invention, between two said light-emitting components of adjacency, be equipped with light and mix the dividing plate that (optical mixing) prevents usefulness.
And then, also preferably in luminescence measuring apparatus of the present invention, between four said light-emitting components of adjacency, be equipped with light and mix and prevent that overlooking of usefulness from being criss-cross dividing plate.
And then, make the simultaneously luminous light emitting drive unit of more than one said light-emitting component and preferably in luminescence measuring apparatus of the present invention, have.
Luminescence assay of the present invention is checked the luminous of optical element, has: the inspection controlled step; Control module uses the image pickup signal from imaging apparatus; Luminance to this optical element is checked control, and wherein, said imaging apparatus is equipped with the luminous a plurality of light receivers that carry out light-receiving and make a video recording from this optical element; Thus, realize above-mentioned purpose.
In addition; Inspection controlled step in the preferred Luminescence assay of the present invention has: the address given step; The address designating unit is carried out the address to one or more light receivers and is specified from a plurality of light receivers that the luminance of said optical element is made a video recording; And luminance inspection step, the luminance inspection unit is checked the luminance of this optical element based on the image pickup signal of the one or more light receivers that come comfortable this address given step appointment.
And then; Luminance inspection step in the also preferred Luminescence assay of the present invention has: the light quantity determination step; The light quantity identifying unit compares the value and the reference value of the image pickup signal of one or more light receivers of next free said address designating unit appointment; Be lower than in the value of this image pickup signal that to be judged to be light quantity under the situation of this reference value bad, good in the value of this image pickup signal for being judged to be light quantity under this situation more than reference value; And the directive property determination step, the directive property identifying unit compares the value and the reference value of the image pickup signal of one or more light receivers of next free address designating unit appointment, judges that the good of luminous directive property of this light-emitting component denys.
Control program of the present invention has been recorded and narrated and has been used to make computing machine to carry out the processing procedure of each operation of above-mentioned Luminescence assay of the present invention, thus, has realized above-mentioned purpose.
Readable medium recording program performing of the present invention is the medium that stores the embodied on computer readable of above-mentioned control program of the present invention, thus, has realized above-mentioned purpose.
According to above-mentioned formation, explanation effect of the present invention below.
The present invention has: imaging apparatus is equipped with the luminous a plurality of light receivers that carry out light-receiving and make a video recording from optical element; And control part, use image pickup signal from this imaging apparatus, the luminance of optical element is checked control.This control part has: the address designating unit, and from a plurality of light receivers that the luminance of optical element is made a video recording, one or more light receivers are carried out the address and specify; And the luminance inspection unit, based on the image pickup signal of the one or more light receivers that come free this address designating unit appointment, check the luminance of this optical element.
Thus; Owing to use optical receiving sensor to detect the luminance of light-emitting component (for example LED) as piece image with a plurality of light receivers; Even thereby the data of taking out near the light receiver (pixel) its center; Also can measure luminous brightness (or briliancy), and then also can measure luminous distribution if take out a column data of directions X or Y direction.
In addition, when between two light-emitting components (for example LED), inserting tabular partition component, can suppress luminous interference from two light-emitting components, can be simultaneously as picture catching luminous to from two light-emitting components.If four light-emitting components are if insert criss-cross partition component, then can be simultaneously as picture catching to luminous from each of four light-emitting components.
Therefore; Say the image pickup signal that transmits owing to use the imaging apparatus be equipped with from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of optical element; Take out the luminance of signal and inspection control optical element with pixel scale; Therefore, can not only be easily and measure the luminous quantity of an optical element of inspection exactly, but also can not use existing such identification id circuit ground to measure the luminous quantity of checking a plurality of optical elements easily and exactly; And, also can be easily and measure the luminous directive property of inspection optical element exactly, to adhere to dust bad.
Through the above; According to the present invention; Owing to use the image pickup signal that imaging apparatus transmitted be equipped with from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of optical element; The luminance of taking out signal and inspection control optical element with pixel scale, thereby not only can be easily and measure the luminous quantity of an optical element of inspection exactly, but also can not use existing such identification id circuit ground to measure the luminous quantity of checking a plurality of optical elements easily and exactly; And, also can be easily and measure the luminous directive property of inspection optical element exactly, to adhere to dust bad.
Description of drawings
Fig. 1 is the block diagram that the major part of the luminescence measuring apparatus in the expression embodiment of the present invention 1 constitutes example.
Fig. 2 is the synoptic diagram of the luminous situation of the optical element of each chip before the luminescence measuring apparatus mensuration chip of presentation graphs 1 cuts off.
Fig. 3 is that two semi-conductor chips to Fig. 2 apply supply voltage respectively and make the vertical view of the luminous situation of LED.
Fig. 4 (a) and (b) be that expression enlarges the synoptic diagram that each street after chip cuts off makes the luminous situation of optical element.
Fig. 5 (a) and (b) be that each chip after chip is cut off in expression carries out packetized and makes the synoptic diagram of the luminous situation of optical element.
Fig. 6 is that the luminescence measuring apparatus of Fig. 1 is measured the luminous picture figure of LED that voltage source is put on two semi-conductor chips of Fig. 3 respectively, is the picture figure that the light quantity of each semi-conductor chip of expression is judged the district.
Fig. 7 is that the luminescence measuring apparatus of Fig. 1 is measured the luminous picture figure of LED that voltage source is put on two semi-conductor chips of Fig. 3 respectively, is the picture figure in the address selection district of each pixel of expression.
Fig. 8 (a)～(e) is the directive property distribution plan of the luminance of the LED under the situation in the expression address selection district of selecting Fig. 7.
Fig. 9 is the major part longitudinal diagram of situation of the concrete example of the expression luminescence measuring apparatus that used a plurality of Fig. 1 that have a plurality of dividing plates.
Figure 10 is used to explain that the major part of existing luminescence measuring apparatus constitutes the synoptic diagram of example.
Figure 11 is the block diagram that the major part of expression patent documentation 1 disclosed existing luminescence measuring apparatus constitutes example.
Figure 12 is the figure that is used for explaining at the waveform of the employed AC offset signal of existing luminescence measuring apparatus of Figure 11.
Description of reference numerals
1,1A, 1B: luminescence measuring apparatus
2: imaging apparatus
The 3:A/D converter section
4: control part
41: the address designating unit
42: the light quantity identifying unit
43: the directive property identifying unit
44:NG chip registering unit
5: operating portion
6: display part
7：ROM
8：RAM
11: wafer
12: semi-conductor chip
13: pad
14: probe
15: ring
16: adhesive sheet
17: contact pilotage
18: packaging part
19: dividing plate
20：LED
A, B: chip
X, Y: pixel address
L: luminous
D1, X1, Y1: address selection district.
Embodiment
Below, the limit specifies the embodiment 1 of luminescence measuring apparatus of the present invention and Luminescence assay with reference to the accompanying drawing limit.In addition, for each purpose thickness, thickness etc. of the formation portion material among each figure, the viewpoint of making from accompanying drawing is not limited to illustrated formation.
(embodiment 1)
Fig. 1 is the block diagram that the major part of the luminescence measuring apparatus in the expression embodiment of the present invention 1 constitutes example.
Among Fig. 1; The luminescence measuring apparatus 1 of this embodiment 1 has: make as after under the luminous situation of the LED of light-emitting component of the semi-conductor chip 12 stated, will be arranged to rectangular imaging apparatus 2 from a plurality of light receivers that carried out opto-electronic conversion by the incident light of shooting body and make a video recording; From from the A/D converter section 3 that removes the laggard capable A/D conversion of denoising the image pickup signal of imaging apparatus 2; By carrying out the whole control part 4 of controlling and carrying out CPU (central arithmetic processing apparatus) formation of luminescence assays control; Via being used for that CPU is carried out keyboard, mouse, touch-screen and the pen-based input device of input instruction and the operating portions such as input media 5 that communication network (for example internet, in-house network) receives input; In display frame, show initial picture, select picture, according to the display part 6 of the control result screen of CPU and operation input picture etc.; The ROM7 of the readable medium recording program performing that goes out as the computer-readable of storing control program and data thereof etc.; And read control program and data thereof etc. when starting and each control of CPU read/store the RAM8 that plays a role as working storage of data as storage part.
Control part 4 uses from the luminance that is equipped with the image pickup signal inspection control LED that the imaging apparatus 2 from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of LED is transmitted.Control part 4 has: carried out the inspection of luminance, using the selection of the pixel address of which pixel to specify input from operating portion 5; Perhaps select automatically to set according to checking mode; Near luminous directions X of LED or row a plurality of pixel address, perhaps the address designating unit 41 of the address of one or more pixels in specified district of Y direction are passed in appointment; The luminous of LED made a video recording with image-type by one or more pixels, obtain the value or the mean value of an one of which pixel, to its light quantity identifying unit 42 that compares with reference value; Judgement is as the directive property identifying unit 43 of the directive property of the LED of light-emitting component; Result of determination being judged by light quantity identifying unit 42 and/or directive property identifying unit 43 is under the situation of NG, this judgement content and NG chip number is registered in the NG chip registering unit 44 as bad registering unit of RAM8.By these light quantity identifying units 42 and directive property identifying unit 43, constitute the luminance inspection unit of checking the luminance of LED based on the image pickup signal of the one or more light receivers that come designating unit 41 appointments of free address.
Address designating unit 41 is selected to specify input or is selected to set with the inside of checking mode relevant provisions through outside, and the column direction of being expert at (in length and breadth to) selects to set the pixel region of specialized range, for example in 200 * 400 pixels, and X (horizontal number for example; The first row first place with the left side is a benchmark, for example 1～200) be 50～100, Y (vertical number; 1～400) for example is 50～100 pixel region.In this case; Be provided with in the address designating unit 41 from the imaging apparatus 2 that carries out optical detecting and take out the unit of an individual signal more than the pixel; From for example 200 * 400 pixel datas of input successively; Just will be counted with respect to the address designated information of address designating unit 41 column direction (in length and breadth to) of being expert at, and make its count value consistent and be taken into by the pixel data of the luminance of the pixel region of address appointment.Directive property to LED describes, and the luminous section that has a LED with a peak value is the directive property of heart shape etc. for circular or oval-shaped directive property, luminous section with LED of two peak values.When specifying a plurality of pixel address of row of directions X or Y direction, can measure the directive property shape (peak value and its all boundary values) of the luminous section (circle or heart etc.) of LED.Even the luminous section of LED is circular or oval, also adhere in LED central authorities under the situation of dust, because luminous section becomes heart shape, thereby it is made as bad (NG).No matter be any, a plurality of pixel address of the row through specifying directions X or Y direction, can be easily and measure the luminous directive property shape of optical element exactly, to adhere to dust bad and carry out very not inspection.
In address designating unit 41, shown in the X1 of Fig. 7, Y1, D1, can set the light receiving area of the imaging apparatus 2 that carries out optical detecting arbitrarily.In addition, can also be as at least two among the Xl of Fig. 7, Y1, the Dl the light receiving area of the imaging apparatus 2 that carries out optical detecting being carried out multi-region sets.And then, under the situation that is judged to be bad (NG), also can the light-receiving data of this bad part at length be carried out the address appointment and be taken into its address data designated verifying bad part by pixel ground of a pixel.
Light quantity identifying unit 42 get the determined pixel zone of having set light receiving area each pixel (X, Y) " with ", whether satisfy specified reference value according to summation light quantity or its average light quantity or peak value light quantity, judge that the LED light quantity very denys.
Directive property identifying unit 43 is got each pixel (X in the determined pixel zone of having set light receiving area; Y) " with "; Judge whether directive property is circular or heart-shaped for example, under the situation such as situation that become heart or peak offset from center position when circular, be judged to be the directive property bad (NG) that contains dust or adhere to spot etc.
NG chip registering unit 44 is under the situation of NG in the result of determination of being judged by light quantity identifying unit 42 and/or directive property decision means 43, will judge that content (light quantity NG or/and directive property NG, reach the kind of directive property NG) and NG chip number are registered in RAM8.
As the ROM7 of readable medium recording program performing, except that hard disk, also can constitute by CD, photomagneto disk, disk and the IC storer etc. that carry freely.This control program and data thereof etc. are stored among the ROM7, but this control program and data thereof also can or download to ROM7 via wireless, wired or network etc. from other readable medium recording program performings.
Fig. 2 is the synoptic diagram of the luminous situation of the optical element of each chip before luminescence measuring apparatus 1 mensuration of presentation graphs 1 is cut off.Fig. 3 is that two semi-conductor chips 12 to Fig. 2 apply supply voltage respectively and make the vertical view of the luminous situation of LED.
In Fig. 2 and Fig. 3, be the rectangular a plurality of semi-conductor chips 12 that are provided with light emitting diode (LED) that are equipped with in wafer 11 upper edge ranks directions.For each of a plurality of semi-conductor chips 12 (is two at this), can be that pad 13 applies supply voltage and makes LED luminous to the probe contact element from probe 14.Like this, control part 4 has from probe 14 and applies predetermined power voltage and make more than one LED20 or LED20 is simultaneously or indivedual luminous light emitting drive unit arbitrarily.At this moment, probe 14 need contact with pad 13, simultaneously, is basic point with the semi-conductor chip 12 of upper left side, and control part 4 needs identification to measure the semi-conductor chip 12 of which position.Thus, the good of the luminous quantity of LED, directive property do not judged and can check through luminescence measuring apparatus 1.Like this, accompany dividing plate (not shown in Fig. 2 and Fig. 3, as in Fig. 6, to be illustrated as dividing plate 19) at the semi-conductor chip 12 (chip A and chip B) of regulation number (is two at this) between each, sequentially determining is checked luminous quantity and the luminance of this LED.
In this case, but luminescence measuring apparatus 1 carries the imaging apparatus 2 of the size of a plurality of LED of light-receiving, is the determinator that can take out the image pickup signal of the light receiving area that has carried out address appointment arbitrarily with respect to the shooting district.
Luminous with respect to LED, (X Y) specifies, and through taking out as electric signal, a plurality of (is two at this) LED is luminous also can to select necessary Pixel Information even make for an imaging apparatus 2 by pixel address in the shooting district of imaging apparatus 2.And then, through dividing plate (dividing plate 19 of Fig. 6) is set at imaging apparatus 2, can have the structure that does not receive from the influence of horizontal light.Owing to take out a plurality of signals subtly with pixel scale, thereby can understand the luminous quantity distribution relevant, can check that also directive property is bad and it is bad to adhere to dust with directive property.
Fig. 4 (a) and Fig. 4 (b) are the synoptic diagram of representing each street expansion after the chip cut-out is made the luminous situation of optical element.
In Fig. 4 (a) and Fig. 4 (b); A plurality of semi-conductor chips 12 with above-mentioned wafer 11; To have pasted the state that frame promptly encircles 15 fixing adhesive sheets 16 that is cut; After being cut to each semi-conductor chip 12 through line of cut or cutting blade, adhesive sheet 16 is launched (stretchings), vacate certain clearance to fix each semi-conductor chip 12 12 of each semi-conductor chips.In this case, owing to vacate certain clearance 12 of each semi-conductor chips, thereby be easy to insert dividing plate (not shown) 12 of each semi-conductor chips, inspection is become be more prone to.
Under this state, for each of a plurality of semi-conductor chips 12 (is two at this), can supply voltage be put on probe contacts from probe 14 is pad 13 and make LED luminous.Can not judge through luminous quantity, the good of directive property of luminescence measuring apparatus 1 this LED of inspection.Like this, check its LED successively at each semi-conductor chip 12 insertions dividing plate (not shown) of stated number (is two at this).
Fig. 5 (a) and Fig. 5 (b) are that each chip after chip is cut off in expression carries out packetized and makes the synoptic diagram of the luminous situation of optical element.
In Fig. 5 (a) and Fig. 5 (b), after being cut to each semi-conductor chip 12 and carrying out singualtion, contact pilotage 17 is secured to semi-conductor chip 12, to it having been carried out the packaging part 18 of packetized, can apply supply voltage and make LED luminous from contact pilotage 17.Can not judge through luminous quantity, the good of directive property of luminescence measuring apparatus 1 this LED of inspection.Like this, check its LED successively at each packaging part 18 insertions dividing plate (not shown) of stated number (is two at this).
Fig. 6 and Fig. 7 measure the luminous drawing figure that two semi-conductor chips of Fig. 3 is applied the LED of supply voltage respectively by the luminescence measuring apparatus 1 of Fig. 1; Fig. 6 is the picture figure that the light quantity of each semi-conductor chip of expression is judged the district, and Fig. 7 is the picture figure in the address selection district of each pixel of expression.
As shown in Figure 6; Light quantity as each semi-conductor chip (each LED) is judged the district, for example is that the light quantity of 1 pixel is judged district A1 in chip A, is that the light quantity of 1 pixel is judged district B1 in chip B; But also can be a plurality of pixel regions; Light quantity judges that the district preestablishes, but is not limited thereto, but can set arbitrarily.
As shown in Figure 7; Address selection district as each pixel; For example being the address selection district Xl and the Y1 of each row of directions X and Y direction in chip A, be the address selection district D1 of block of pixels in chip B, still also can be among address selection district X1 and Y1, the D1 at least any; Be not limited thereto, in addition the address selection district also can set arbitrarily.
Among Fig. 8 (a), select a column address to select district X1, the directive property that its section becomes regulation distributes.That is, as the datum curve of circular directive property, bright its periphery of LED central authorities is darker.In this case, being higher than the stipulated standard value with the brightness e1 (central portion) at two positions and brightness e2 (end) is benchmark.
In Fig. 8 (b), select a column address to select district X1, its section becomes from the distribution of directive property distribution (Fig. 8 (a)) collapse of regulation.That is, though the luminous quantity of going up as a whole (brightness) is enough, the brightness of LED middle descends.This is because of the dust that has adhered to shading except that the LED center, the spot, might in addition, also might be that the directive property of light is bad, directive property central bad (NG) in spite of wound also.In this case; Counter-rotating or lower than setting takes place in the difference of the brightness el through the LED central portion and the brightness e2 of Qi Bian portion (end); And the brightness e1 of its central portion is far below the lower limit of stipulated standard value, thus decidable be directive property central authorities bad (NG).
In Fig. 8 (c), select a column address to select district X1, its section becomes from the distribution of directive property distribution (Fig. 8 (a)) collapse of regulation.That is, though the luminous quantity of going up as a whole is enough, the brightness of LED center significantly is higher than setting, and the brightness of periphery is lower than setting.This is except that the LED periphery has adhered to the dust, spot of shading, might in addition, also might be that the directive property of light is bad, directive property peripheral bad (NG) in spite of wound also.In this case, the difference of brightness e1 through the LED central portion and the brightness e2 of its periphery (end) surpasses the stipulated standard value, and the brightness e2 of its periphery (end) is lower than the stipulated standard value, thus decidable be the directive property periphery bad (NG).
In Fig. 8 (d), select a column address to select district X1, the directive property that its section becomes regulation distributes.That is, the luminous quantity of going up as a whole is enough, but has only the brightness of LED periphery folk prescription to reach and the same degree of the brightness of central portion, the brightness obfuscation of another folk prescription of LED periphery.This is except that one-sided dust that adheres to shading of LED periphery, spot, except that situation in spite of wound, is to contain the bad folk prescription periphery bad (NG) of encapsulation.In this case, the brightness e1 through the LED central portion is lower than setting with the difference of the brightness e2 of its periphery, and the brightness e2 of its periphery significantly is higher than setting, thus decidable be the folk prescription periphery bad (NG).
In these Fig. 8 (b)～Fig. 8 (d), be judged to be under the situation of bad (NG), can select a column address to select district Y1, whether its section of detailed inspection is the directive property distribution of regulation.Like this, the address selection that can carry out a plurality of positions is specified.Generally speaking, further the periphery of the part of bad to being judged to be (NG) and section thereof carry out the address selection appointment, measure directive property in more detail and distribute, and can make luminous characteristic of LED and bad characteristic differenceization.
In Fig. 8 (e), select the address selection district D1 of piece, its section becomes the directive property distribution (the heart-shaped distribution) of regulation.That is, as the datum curve of heart-shaped directive property, LED central authorities shade bright at its two positions of periphery a little.In this case, being higher than setting with brightness e11, e21, the e12 at three positions is benchmark.
In the Luminescence assay of inspection as this luminous embodiment 1 of the LED20 of optical element; Carry out the inspection controlled step by computing machine (CPU); Promptly; Based on control program in the ROM7 and data thereof, the inspection control module uses and to be equipped with the image pickup signal that the imaging apparatus 2 from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of LED20 is transmitted, the luminance of inspection control LED20.This inspection controlled step has: the address given step of one or more light receivers is specified in address designating unit 41 address from a plurality of light receivers that the luminance of LED20 is made a video recording; The luminance inspection unit is based on the luminance inspection step of the luminance of the image pickup signal inspection LED20 of the one or more light receivers that come the given step appointment of comfortable address.And then; This luminance inspection step has: the value and the reference value of the image pickup signal of one or more light receivers of 42 pairs of next free address designating unit 41 appointments of light quantity identifying unit compare; Being lower than in the value of image pickup signal that to be judged to be light quantity under the situation of reference value bad, is to be judged to be the good light quantity determination step of light quantity under the situation more than the reference value in the value of image pickup signal; The value and the reference value of the image pickup signal of one or more light receivers of 43 pairs of next free address designating unit 41 appointments of directive property identifying unit compare, the directive property determination step that the luminous directive property of judging LED20 very denys.Like this, the luminance inspection unit is made up of light quantity identifying unit 42 and directive property identifying unit 43.
As stated, according to this embodiment 1, have: the address designating unit 41 of one or more light receivers is specified in the address from a plurality of light receivers that the luminance of LED20 is made a video recording; Value and reference value to the image pickup signal of one or more light receivers of coming designating unit 41 appointments of free address compare; Being lower than in the value of image pickup signal that to be judged to be light quantity under the situation of reference value bad, is to be judged to be the good light quantity identifying unit 42 of light quantity under the situation more than the reference value in the value of image pickup signal; Value and reference value to the image pickup signal of one or more light receivers of coming designating unit 41 appointments of free address compare; The directive property identifying unit 43 that the luminous directive property of judging LED20 very denys; Use is equipped with the image pickup signal that the imaging apparatus 2 from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of LED20 is transmitted; Take out signal with pixel scale, the luminance of inspection control LED20.Therefore, also can understand luminous quantity distribution relative and the bad chip of eliminating directive property with directive property.In addition, do not have to need not the transformation of software/hardware aspect as increase and decrease by the circuit of measuring the number decision simultaneously yet.And then, also need be to the special inspection body in the software/hardware of image pickup element, through with the same routine check of existing optical receiving sensor just in detail decision mechanism no problem is arranged.
At last; Result of determination being judged by light quantity identifying unit 42 and/or directive property identifying unit 43 is under the situation of NG; Should judge through NG chip registering unit 44 that content (light quantity NG also has the kind of directive property NG in addition or/and directive property NG) and NG chip number were registered in RAM8.That is, with the corresponding pairing address location of chip number that is called as the address substitute, the position of wafer 11, store and judge content (light quantity NG is or/and the NG kind of directive property NG).As the kind of NG, for example the light quantity at light quantity identifying unit 42 is no problem, but under directive property identifying unit 43 problematic situation, becomes grade B.In addition, for example problem is arranged and under the no problem situation of directive property identifying unit 43, become grade C in the light quantity of light quantity identifying unit 42.And then for example the light quantity at light quantity identifying unit 42 is no problem, under the also no problem situation of directive property identifying unit 43, becomes grade A.And then difference is bad in detail.For example, two threshold values can be set, be divided into two stages with light quantity is bad about the light quantity of light quantity identifying unit 42.
In addition; In above-mentioned embodiment 1; Like Fig. 6 and shown in Figure 7, when (between chip A, B) adds tabular dividing plate 19 between two light-emitting components (for example LED), can suppress mixing from the light of two light-emitting components (for example LED); Catch good from the luminous of two light-emitting components and inspection luminous quantity and directive property simultaneously as image; But be not limited to this, also can be used as picture catching and very deny, in addition from the luminous of a light-emitting component (for example LED) and inspection luminous quantity and directive property; If four light-emitting components, then can be used as image if add criss-cross dividing plate and catch from each of four light-emitting components luminous and inspection luminous quantity and directive property simultaneously and very deny.And then, also can use the luminescence measuring apparatus that has a plurality of dividing plates 19, catch from each of a plurality of light-emitting components luminous and inspection luminous quantity and directive property simultaneously as image and very deny, can make inspection fast, easily carry out.The concrete example of the luminescence measuring apparatus under this situation is as shown in Figure 9.
Fig. 9 is the major part longitudinal diagram of the situation of the expression luminescence measuring apparatus concrete example that used a plurality of Fig. 1 that have a plurality of dividing plates.
As shown in Figure 9; Arrange a plurality of luminescence measuring apparatus 1A (4 * 4 mensuration are used); Vertically and the every of a plurality of LED20 who transversely is rectangular configuration dividing plate 19 is set at a distance from one, can make LED20 luminous and to measure to carry out to it very deny to check at a distance from one by the every of a plurality of LED20.To vertically and transversely be a plurality of LED20 of rectangular configuration,, then can measure light quantity and directive property to carry out very not inspection with image-type to all LED20 if make a plurality of luminescence measuring apparatus 1A (4 * 4) slide into vertical or horizontal any.In addition, luminescence measuring apparatus 1A also can with a plurality of LED20 8 * 8 in 4 * 4 measure by 11 ground.And then, stagger down in the vertical successively through using a plurality of luminescence measuring apparatus 1B (1 * 4 measure with), also can exercise this dividing plate 19 of usefulness to 1 of the zone that is equipped with a plurality of LED20.L representes luminous from LED20.The opposed LED20 of bottom surface institute of dividing plate 19 is not luminous.Luminous is at vertically (depth direction of Fig. 9) and laterally (left and right directions of Fig. 9) at interval.
In addition; Though in above-mentioned embodiment 1, specify; But; Begin to check successively that from the chip of the basic point that becomes wafer 11 each or per two luminous quantity and directive property very denys, and survey which chip LED of inspection now, can be except that the specified pixel address by the address designating unit 41 that is arranged at control part 4; The LED that also recognizes the chip of current measurement is which number that the basic point from wafer 11 begins, also will judge the NG content registration with the corresponding pairing address location of chip number that is called as the address substitute, the position of wafer 11.In addition, making a plurality of chips simultaneously luminous to check under the situation that its luminous quantity and directive property very denys, can be which number that the basic point from wafer 11 begins with the above-mentioned LED that likewise recognizes the chip of current measurement also.
In addition, though in above-mentioned embodiment 1, specify,, also have the simultaneously luminous function of light-emitting component (for example LED) that makes more than one electronic unit (semi-conductor chip).In addition, the light-emitting component (for example LED) that also has with respect to more than one electronic unit (semi-conductor chip) makes the luminous function of any parts.And then, also can make the light-emitting component of more than one electronic unit (semi-conductor chip) simultaneously luminous, and discern the luminous quantity of each electronic unit.And then the imaging apparatus 2 that carries out optical detecting can take out the above individual signal of a pixel arbitrarily.Thus, under the situation such as situation of having adhered to dust on the LED20, come the validation signal level, can learn the position of adhering to dust on the LED20 in detail through each pixel is taken out individual signal arbitrarily.
In addition, though in above-mentioned embodiment 1, specify to have: be equipped with to imaging apparatus 2 from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of LED20; And use is from the control part 4 of the luminance of the image pickup signal inspection control optical element of this imaging apparatus 2.Through this formation; Can realize the object of the invention; Promptly; Not only can be easily and measure the luminous quantity of an optical element of inspection exactly, but also can not use existing such identification id circuit ground to measure the luminous quantity of a plurality of optical elements of inspection easily and exactly, and can be easily and measure exactly check the luminous directive property of optical element, to adhere to dust bad.
In addition; In above-mentioned embodiment 1; Formation is utilized light quantity identifying unit 42 and directive property identifying unit 43; Situation based on the luminance inspection unit of the luminance of the image pickup signal inspection LED of the one or more light receivers that come designating unit 41 appointments of free address is illustrated, but is not limited to this, can be readily appreciated that the luminance inspection unit also can only have any of light quantity identifying unit 42 and directive property identifying unit 43.In this case, be under the condition of poor as the NG chip registering unit 44 of bad registering unit in result of determination by any judgement at least in light quantity identifying unit 42 and the directive property identifying unit 43, can be with judging that content registration was in its chip number.
As stated, the present invention that used the preferred embodiment of the present invention 1 illustration, still, the present invention should not be defined in this embodiment 1 and make an explanation.Can understand the present invention should only make an explanation to its scope through claims.Can understand can be according to the present invention concrete 1 the record preferred embodiment of those skilled in the art, and implement in the scope of equivalence based on record of the present invention and technological general knowledge.Can understand patent, patented claim and the document quoted in this manual, should specifically be recorded in this instructions likewise with its content itself, its content is as the reference of this instructions is quoted.
Utilizability on the industry
The present invention at the luminous luminescence measuring apparatus and the Luminescence assay of optical elements such as inspection light emitting diode (below be called LED), be used for by the control program of this Luminescence assay of computing machine execution, store the readable medium recording program performing field of this control program; Can use the image pickup signal that imaging apparatus transmitted that is equipped with from the luminous a plurality of light receivers that carry out light-receiving and make a video recording of optical element; Take out the luminance of signal and inspection control optical element with pixel scale; Thereby not only can be easily and measure the luminous quantity of an optical element of inspection exactly; But also can not use existing such identification id circuit ground to measure the luminous quantity of a plurality of optical elements easily and exactly; And, also can be easily and measure the luminous directive property of inspection optical element exactly, to adhere to dust bad.
Claims (16)
1. a luminescence measuring apparatus is checked the luminous of optical element, wherein, has:
Imaging apparatus is equipped with the luminous a plurality of light receivers that carry out light-receiving and make a video recording from this optical element; And
Control part uses the image pickup signal from this imaging apparatus, and the luminance of this optical element is checked control.
2. luminescence measuring apparatus according to claim 1, wherein, said control part has: the address designating unit, from a plurality of light receivers that the luminance of said optical element is made a video recording, one or more light receivers are carried out the address and specify; And the luminance inspection unit, based on the image pickup signal of the one or more light receivers that come free this address designating unit appointment, check the luminance of this optical element.
3. luminescence measuring apparatus according to claim 2, wherein, said address designating unit carry out from the outside the inspection of the luminance of said optical element, using which pixel pixel address the appointment input or select to set this pixel address in advance.
4. luminescence measuring apparatus according to claim 3; Wherein, Said address designating unit is specified the luminescent center that passes said optical element and a near direction or a plurality of pixel address of a plurality of directions, or/and specify this optical element luminescent center a pixel address or comprise the luminescent center of this optical element and near a plurality of pixel address in piece district.
5. luminescence measuring apparatus according to claim 2; Wherein, Said luminance inspection unit has: the light quantity identifying unit; Its value and reference value to the image pickup signal of one or more light receivers of coming free said address designating unit appointment compares, and is lower than in the value of this image pickup signal that to be judged to be light quantity under the situation of this reference value bad, is that to be judged to be light quantity under this situation more than reference value good in the value of this image pickup signal.
6. according to claim 2 or 5 described luminescence measuring apparatus; Wherein, Said luminance inspection unit has: the directive property identifying unit; Its value and reference value to the image pickup signal of one or more light receivers of next free said address designating unit appointment compares, and judges that the good of luminous directive property of this light-emitting component denys.
7. luminescence measuring apparatus according to claim 5; Wherein, Have: bad registering unit, it is under the condition of poor in the result of determination of being judged by said light quantity identifying unit and/or said directive property identifying unit, should judge that content registration was in its chip number.
8. luminescence measuring apparatus according to claim 6; Wherein, Have: bad registering unit, it is under the condition of poor in the result of determination of being judged by said light quantity identifying unit and/or said directive property identifying unit, should judge that content registration was in its chip number.
9. luminescence measuring apparatus according to claim 1 wherein, is equipped with light and mixes the dividing plate that prevents usefulness between two said light-emitting components of adjacency.
10. luminescence measuring apparatus according to claim 1 wherein, is equipped with the light mixing and prevents that overlooking of usefulness from being criss-cross dividing plate between four said light-emitting components of adjacency.
11. luminescence measuring apparatus according to claim 1 wherein, has the light emitting drive unit that makes more than one said light-emitting component simultaneously luminous.
12. luminous Luminescence assay of checking optical element; Wherein, Have: the inspection controlled step, control module uses the image pickup signal from imaging apparatus, and the luminance of this optical element is checked control; Wherein, said imaging apparatus is equipped with the luminous a plurality of light receivers that carry out light-receiving and make a video recording from this optical element.
13. Luminescence assay according to claim 12, wherein, said inspection controlled step comprises:
Address given step, address designating unit are carried out the address to one or more light receivers and are specified from a plurality of light receivers that the luminance of said optical element is made a video recording; And
Luminance inspection step, the luminance inspection unit is checked the luminance of this optical element based on the image pickup signal of the one or more light receivers that come comfortable this address given step appointment.
14. Luminescence assay according to claim 13, wherein, said luminance inspection step comprises:
The light quantity determination step; The light quantity identifying unit compares the value and the reference value of the image pickup signal of one or more light receivers of next free said address designating unit appointment; Be lower than in the value of this image pickup signal that to be judged to be light quantity under the situation of this reference value bad, good in the value of this image pickup signal for being judged to be light quantity under this situation more than reference value; And
The directive property determination step, the directive property identifying unit compares the value and the reference value of the image pickup signal of one or more light receivers of next free address designating unit appointment, judges that the good of luminous directive property of this light-emitting component denys.
15. a control program wherein, records and is used for making computing machine to carry out the processing procedure like each step of each described Luminescence assay of claim 12～14.
16. the readable storage medium storing program for executing of an embodied on computer readable wherein, stores the described control program of claim 15.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010085591A JP5021784B2 (en) | 2010-04-01 | 2010-04-01 | Luminescence measurement device, luminescence measurement method, control program, and readable recording medium |
| JP2010-085591 | 2010-04-01 |
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| CN102323528A true CN102323528A (en) | 2012-01-18 |
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| JP (1) | JP5021784B2 (en) |
| KR (1) | KR101215341B1 (en) |
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| CN105191503A (en) * | 2013-04-12 | 2015-12-23 | 宗拓贝尔照明器材有限公司 | Method for controlling a lamp having a plurality of sub-units |
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| CN111595561A (en) * | 2020-06-30 | 2020-08-28 | 东莞市聚明电子科技有限公司 | Intelligent detection method and device for counting and identifying LED lamp bead keyboard backlight module |
| CN111721508A (en) * | 2020-06-30 | 2020-09-29 | 东莞市聚明电子科技有限公司 | Intelligent detection method and device for keyboard backlight module based on counting analysis and identification |
| CN111721506A (en) * | 2020-06-30 | 2020-09-29 | 东莞市聚明电子科技有限公司 | Automatic calibration detection method and device for counting identification of keyboard backlight module |
| CN111721509A (en) * | 2020-06-30 | 2020-09-29 | 东莞市聚明电子科技有限公司 | Intelligent detection method and device for LED lamp bead keyboard backlight module based on polar coordinates |
| CN111721505A (en) * | 2020-06-30 | 2020-09-29 | 东莞市聚明电子科技有限公司 | Automatic calibration detection method and device for keyboard backlight module based on polar coordinates |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110110730A (en) | 2011-10-07 |
| CN102323528B (en) | 2014-12-24 |
| KR101215341B1 (en) | 2012-12-26 |
| JP2011216794A (en) | 2011-10-27 |
| TWI445929B (en) | 2014-07-21 |
| TW201137323A (en) | 2011-11-01 |
| JP5021784B2 (en) | 2012-09-12 |
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