CN2567544Y - Optical detection device with high-intensity lighting device - Google Patents
Optical detection device with high-intensity lighting device Download PDFInfo
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- CN2567544Y CN2567544Y CN 01207390 CN01207390U CN2567544Y CN 2567544 Y CN2567544 Y CN 2567544Y CN 01207390 CN01207390 CN 01207390 CN 01207390 U CN01207390 U CN 01207390U CN 2567544 Y CN2567544 Y CN 2567544Y
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- metal halide
- halide lamp
- image former
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Abstract
The utility model relates to an optical detection device for a circuit, which comprises a supporting surface, an optical imaging apparatus, an image processing circuit and at least one lighting apparatus, wherein the supporting surface is used for placing and supporting a detected circuit; the optical imaging apparatus is used for imaging at least one part of the detected circuit; the image processing circuit is used for receiving the output of the optical imaging apparatus and providing output indicating signals which comprise detecting data; the lighting apparatus is used for lighting at least one part of the detected circuit so that the optical imaging apparatus can image one part of the detected circuit; the lighting apparatus comprises at least one metal halide lamp, a reflector which is combined with the metal halide lamp, and a power supply which supplies power to the metal halide lamp. The utility model is a high efficiency circuit detecting device.
Description
The utility model relates to the optical detection of circuit, more particularly, is to adopt high intensity illumination in the visible spectrum to carry out the optical detection apparatus of circuit.
In existing patent documentation, the various documents that relate to the optical detection of circuit are disclosed, comprising detection, and adopt various light fixture therein to printed circuit board (PCB) and flat-panel monitor.
Can think that following patent, patented claim and technical periodical have showed the technology status of the illuminator of the robotization optical detection that is used for circuit:
The US 4,506,152 of US 4,421,410 Gupta of Karasaki
The US 4,73 5,497 of US 4,692,690 Elterman of Hara
The US 4,877,326 of US 4,801,810 Chadwick of Koso etc.
The US 5,153,668 of US 5,058,982 Katzir of Katzir etc.
The WO 9966314 of extensive and profound in meaning Tyke (Orbotech) company
Israel's patent of extensive and profound in meaning Tyke (Orbotech) company: 81450
" the optical detection system " of Strope etc. (ibm technology communique in February, 1981, No. 9 23 volume)
The purpose of this utility model is to provide a kind of high efficiency device that is used for electric circuit inspection, this device adopts the high intensity illumination in the visible spectrum, preferred illumination spectrum is in a reflected image, can easily produce the visible contrast between the material that constitutes printed circuit board (PCB) commonly used, for example the copper conductor on polyimide or glass fibre/epoxy resin substrate.
Thus, according to the utility model preferred embodiment, the optical detection apparatus that is used for circuit that is provided comprises: a supporting surface is used to lay and support detected circuit; One optical image former, when this detected circuit was supported on this supporting surface, this optical image former made at least a portion imaging of this circuit; Image processing circuit is used to receive the output of optical image former, and the output indicator signal that includes the detection data is provided; Reach at least one luminaire, be used to illuminate the part of the detected circuit that is supported on this supporting surface, so that optical image former can make at least a portion imaging of this detected circuit.This at least one luminaire comprise at least one metal halide lamp, one with it the reverberator of combination and supply capability to the power supply of this metal halide lamp, its power supply mode makes this power supply or this at least one metal halide lamp can not produce unacceptable interference, for example luminous power fluctuation or disturbance; The luminous output of metal halide lamp is roughly in the spectral range of 350nm and 700nm.
Preferably, a shift unit (displacer) is set,, is used between described supporting surface and described imager, causing relative displacement when described imager duration of work.
In addition, according to a preferred embodiment of the present utility model, this imager comprises CCD (charge-coupled image sensor) type sensor, CID (charge injection device) or CMOS (complementary metal oxide semiconductor (CMOS)) type sensor.Preferably, this imager is a CCD type sensor, and this working sensor is in time-delay integration mode of operation (time delay integration mode ofoperation).
Further, according to a preferred embodiment of the present utility model, this imager has the line read frequency (line readout frequency) that is positioned at scheduled frequency range, this power supply supply capability is to this metal halide lamp, and its power supply mode makes this power supply or this metal halide lamp can not produce unacceptable luminous power output pulsation in scheduled frequency range.
In addition, according to a preferred embodiment of the present utility model, this imager has the line read frequency that is positioned at scheduled frequency range, this power supply supply capability is to described at least one metal halide lamp, its power supply mode makes this power supply or this at least one metal halide lamp can not produce unacceptable interference in the frequency range of the big order of magnitude than scheduled frequency range, for example luminous power fluctuation or disturbance.
Further again, according to a preferred embodiment of the present utility model, this at least one metal halide lamp is operated in the direct current pattern, and the power supply of powering to this metal halide lamp provides direct supply to it.
Further again, according to a preferred embodiment of the present utility model, this device also comprises optical fiber optical transmitting set parts, is used to make the part of light from a metal halide lamp directive detected circuit.Preferably, these optical fiber optical transmitting set parts comprise a condenser that is positioned at the optical fiber downstream.
Again, according to a preferred embodiment of the present utility model, the reverberator with this metal halide lamp combination is used to make the described optical fiber optical transmitting set of light directive parts.
According to a preferred embodiment of the present utility model, the method for the optical detection of the circuit that is provided may further comprise the steps:
At supporting surface upper support circuit to be detected;
When described detected circuit is supported on described supporting surface, adopt optical image former to make at least a portion imaging of this circuit;
The output of handling this optical image former includes the output indicator signal that detects data to provide; And
The luminaire that comprises at least one metal halide lamp by employing, and described at least one metal halide lamp is given in power supply, to drive described at least one metal halide lamp, thereby illuminate the part of the detected circuit that is supported on described supporting surface, so that described optical image former can make described at least a portion imaging of described detected circuit; Power supply mode to metal halide lamp makes described power supply or described at least one metal halide lamp can not produce unacceptable interference, for example luminous power fluctuation or disturbance; The luminous output of metal halide lamp is roughly in the wavelength coverage between 350nm and 700nm.
In addition, according to a preferred embodiment of the present utility model, its method of work is included in the imager duration of work described supporting surface and imager is done respect to one another moving.
Further, according to a preferred embodiment of the present utility model, the imager that its image-forming step adopts has the line read frequency that is positioned at scheduled frequency range, its actuation step adopts power supply to power to metal halide lamp, its power supply mode makes this power supply or this metal halide lamp can not produce unacceptable electrical interference in scheduled frequency range, for example luminous power fluctuation or disturbance.
Further again, according to a preferred embodiment of the present utility model, the imager that its image-forming step adopts has the line read frequency that is positioned at scheduled frequency range, its actuation step adopts the power supply supply capability to described at least one metal halide lamp, its power supply mode makes this power supply or this at least one metal halide lamp can not produce unacceptable electrical interference in the frequency range of the big order of magnitude than scheduled frequency range, for example luminous power fluctuation or disturbance.
In addition, according to a preferred embodiment of the present utility model, its illumination step is used a metal halide lamp that is operated in the direct current pattern, and its actuation step comprises to this metal halide lamp provides direct supply.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 constitutes and works, is used for the sketch of the optical detection apparatus of circuit according to preferred embodiment of the present utility model;
Fig. 2 is the further cross-sectional of the part of device shown in Figure 1;
Fig. 3 is the synoptic diagram of the illuminace component of device illustrated in figures 1 and 2;
Fig. 4 is the workflow sketch according to preferred embodiment of the present utility model.
Shown in Figure 1, constitute and move, be used for the sketch of device of the optical detection of circuit according to preferred embodiment of the present utility model; Fig. 2 is the further cross-sectional of device shown in Figure 1.
As depicted in figs. 1 and 2, be the preferred embodiment of device of the optical detection that is used for circuit of the utility model, it comprises a shell 10, wherein is provided with supporting surface 12, preferably vaccum bench is used to lay and support detected circuit 14.This circuit 14 can be printed circuit board (PCB) (PCB), spherical grid array substrate (ball grid array substrate), multi-chip module, flat pannel display substrate or any other suitable circuit.
One optical image former 20 is set in the shell 10, and when circuit 14 was supported on supporting surface 12, preferably, optical image former 20 was set at the position that is arranged in a sight line with at least a portion 22 of this detected circuit 14.
As shown in Figure 1, a shift unit 24, for example one or more Linear Driving parts, with supporting surface 14, optical image former 20 combinations, its effect is to provide with respect to the relative displacement between the circuit 14 along the X-Y direction on the plane 18, so that optical image former 22 can be observed the part 22 of circuit according to priority, these parts 22 lump together built-up circuit 14 whole surface to be detected.Preferably, shift unit 24 comprises two parts, and first parts that make up with supporting surface 12 are used for moving this supporting surface on directions X; Second parts 28 that make up with optical image former 20 are used for moving this optical image former on the Y direction.
Be understandable that shift unit and optical image former configuration can be adopted various combinations, observe each part 22 according to the order of sequence on forming circuit 14 whole surfaces to guarantee optical image former.Therefore, for example the configuration of optical image former 20 makes it can be along Y direction, observation circuit 14 on whole width mainly, and shift unit only moves this circuit on directions X.Another kind of mode is, the configuration of optical image former 20 makes it can be along Y direction, observation circuit 14 on whole width mainly, and shift unit flying optical head (opticalhead) 20 on directions X only.Also have a kind of mode to be, the setting of shift unit makes its mobile brace table 12 or optical head 20 on X and Y both direction.
Preferred optical image former 20 comprises a sensor array 30, for example CCD (charge-coupled image sensor), CID (charge injection device) or CMOS (complementary metal oxide semiconductor (CMOS)) type sensor array.A kind of suitable sensor is IT-P1 type or IL-E2 type sensor, from the Dalsa company of the Waterloo in Ontario of Canada.For suitable sensor CCD type for example, sensor array 30 can be operated in the time-delay integral mode, but dispensable.The output of sensor array 30 preferably offers image processing circuit 32, this circuit embodiment preferred is to adopt the combination of Flame Image Process hardware and software, for example adopt PC-14 Micro type printed circuit board (PCB) automatic optical detection device, or FPI 7000 type flat-panel monitor substrate automatic optical detection devices, stream oriented device all can be bought from the Aubotek Ltd of the Ya Funei that is positioned at Israel.
Preferably, this treatment circuit 32 is used for receiving a suitable output and an output indicator signal being provided from sensor array 30, and this signal comprises the detection data relevant with detected circuit 14.By will from the view data of the detection gained of circuit 14 with compare by a known reference data that qualified circuit produced, with from computer-aided design (CAD) or make that resulting design data the document compares or compare with the adjacency section of the part of detected circuit 14, thereby can finish detection.
Refer again to Fig. 3 now, illustrated among the figure that a high-intensity light source works independently, or shown in the preferred embodiment and the luminaire similar or identical combination with two other, when circuit 14 is supported on supporting surface 12, illuminating the part 22 in the circuit 14 at least, so that make optical image former 20 can make part 22 imagings at least.
According to a preferred embodiment of the present utility model, this luminaire comprise at least one, three high-strength light source units 50 preferably, a kind of BMH-250 type that is suitable for is the Mejiro Precision Anerica company from New Jersey Oradell.Preferably, each light source cell 50 and a condenser 51 combinations are being penetrated on the part 22 of circuit 14 (see figure 2)s by the light of this light source cell emission.Can be clear that especially that in Fig. 3 an optimized light source unit 50 comprises a metal halide lamp 52, for example from the MH-250-7500 type lamp of Mejiro Precision Anerica company.Preferably, a reverberator 54 combines with metal halide lamp 52, and effect is will be from the receiving end 56 of the light directive optical fiber 58 of lamp 52 output, in this embodiment the optical fiber 58 shown in light from lamp 52 guiding condensers 51.Be understood that easily, can adopt multiple light courcess in case of necessity to increase available light quantity.
Arrow among Fig. 2 is depicted as the transmission direction of light beam.
Can adopt light controller and suitable spectral filter (not shown) and lamp 52 combinations.
According to a preferred embodiment of the present utility model, one power supply 60 provides electric power to each metal halide lamp 52, its power supply mode makes this at least one metal halide lamp 52 can not produce unacceptable interference, for example luminous power output pulsation or disturbance preferably do not produce interference in the instantaneous frequency scope between about 0.1Hz and 100kHz; Typical power supply 60 is contained in the BMH-250 type light source and as wherein part, but the unit that also can be used as a separation is for use.
According to a preferred embodiment of the present utility model, this optic sensor array 30 has the line read frequency that is in the scheduled frequency range, and typically this frequency range is 20kHz to 40kHz.According to a preferred embodiment of the present utility model, power supply 60 provides electric power to each metal halide lamp 52, and its power supply mode is not cause by this power supply 60 or metal halide lamp 52 to produce unacceptable luminous power output pulsation in scheduled frequency range.
Preferably, can in the frequency range of a big order of magnitude, not produce unacceptable luminous power output pulsation than scheduled frequency range at one by described power supply 60 or metal halide lamp 52.
In the utility model one preferred embodiment, this metal halide lamp is operated in the direct current pattern, and power supply 60 provides direct supply to it, for example utilizes AC-dc converter or battery-powered, thereby avoids unnecessary luminous power fluctuation.Another kind method is, metal halide lamp 52 is operated in the alternating current pattern, and in this pattern, instantaneous light emission output is disturbed and surpassed 40kHz, and it is just better to surpass 100kHz.
Referring now to Fig. 4, Fig. 4 is the circuit optical detecting method general flow chart according to the utility model preferred embodiment.
In the utility model preferred embodiment shown in Figure 4, detected circuit is supported on (step 70) on the supporting surface; In the time of on being supported on supporting surface, at least a portion is by imaging (step 80) in this detected circuit; This part of detected circuit is illuminated, so that described optical image former makes this part imaging (substep 85) of detected circuit.Preferably, adopt luminaire that illumination is provided, as indicated above, referring to figs. 1 through Fig. 4, this luminaire comprises a metal halide lamp at least, and by driven by power, produces unacceptable electrical interference (substep 90) so that avoid by power supply or this at least one metal halide lamp; In step 80, the image of optical image former output is processed, preferably adopts electronic image treatment circuit 32 (see figure 1)s to handle, and produces one and comprise and detect data, for example go back the indicator signal (step 100) of defectiveness indication.
Be understood that easily the utility model is not limited to the above, but also comprise its modifications and variations that its modifications and variations are present technique field professionals through reading the above and wherein non-prior art part and can realizing.
Claims (8)
1, a kind of optical detection apparatus of circuit comprises:
One supporting surface is used to lay and support detected circuit;
One optical image former is provided with respect to described detected circuit, and when described detected circuit was supported on described supporting surface, this optical image former made at least a portion imaging of this circuit;
Image processing circuit, it connects described optical image former and receives the output and the output test data of described imager; And
At least one luminaire, be provided with respect to described detected circuit, when detected circuit is supported on described supporting surface, be used to illuminate described at least a portion of described detected circuit, so that optical image former can make a part of imaging of described detected circuit; Described at least one luminaire comprises:
A power supply;
At least one metal halide lamp, by described power supply power supply and luminous, luminous roughly be in the spectral range of 350nm and 700nm, not have the unacceptable luminous power output pulsation of described imager; And
A reverberator, at least one the metal halide lamp combination with described receives the luminous of described at least one metal halide lamp and will make the described part of its directive.
2, the optical detection apparatus of circuit according to claim 1, wherein also comprise a shift unit, when described imager duration of work, be used between described supporting surface and described imager, causing relative displacement, described shift unit comprise and first parts of described supporting surface combination and with second parts of described optical image former combination.
3, the optical detection apparatus of circuit according to claim 1, wherein said optical image former comprises charge coupling device sensor.
4, the optical detection apparatus of circuit according to claim 1, wherein said optical image former comprise the charge coupling device sensor that is operated in the time-delay integration mode of operation.
5, device according to claim 1, wherein said optical image former comprises charge coupling device sensor, it has the line reader of reading described sensor with the frequency in the scheduled frequency range, wherein said power supply is connected to described at least one metal halide lamp, makes the light of its generation not have unacceptable luminous power fluctuation in described scheduled frequency range.
6, device according to claim 1 wherein also comprises optical fiber optical transmitting set parts, and nearly described at least one metal halide lamp of one termination is to receive the light that is sent, and at least a portion of the approaching described detected circuit of its other end is to illuminate described part.
7, device according to claim 6, wherein said optical fiber optical transmitting set parts comprise a condenser that is positioned at the optical fiber downstream.
8, device according to claim 6 comprises also wherein and a reverberator of described at least one metal halide lamp combination that described reverberator is set at the upstream of described optical fiber optical transmitting set parts so that the described optical fiber of light directive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL135417/2000 | 2000-04-02 | ||
| IL54172000 | 2000-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567544Y true CN2567544Y (en) | 2003-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207390 Expired - Fee Related CN2567544Y (en) | 2000-04-02 | 2001-04-02 | Optical detection device with high-intensity lighting device |
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| Country | Link |
|---|---|
| CN (1) | CN2567544Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478643A (en) * | 2010-11-27 | 2012-05-30 | 西安博昱新能源有限公司 | Portable light-emitting diode (LED) daylight lamp comparison test box |
| CN103939832A (en) * | 2014-04-29 | 2014-07-23 | 康代影像科技(苏州)有限公司 | Multi-color light lighting system used for optical detection |
-
2001
- 2001-04-02 CN CN 01207390 patent/CN2567544Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478643A (en) * | 2010-11-27 | 2012-05-30 | 西安博昱新能源有限公司 | Portable light-emitting diode (LED) daylight lamp comparison test box |
| CN103939832A (en) * | 2014-04-29 | 2014-07-23 | 康代影像科技(苏州)有限公司 | Multi-color light lighting system used for optical detection |
| CN103939832B (en) * | 2014-04-29 | 2015-06-24 | 康代影像科技(苏州)有限公司 | Multi-color light lighting system used for optical detection |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |