CN102998892A - Camera module continuous test and focus adjustment device having position detection function - Google Patents

Camera module continuous test and focus adjustment device having position detection function Download PDF

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Publication number
CN102998892A
CN102998892A CN2012103286853A CN201210328685A CN102998892A CN 102998892 A CN102998892 A CN 102998892A CN 2012103286853 A CN2012103286853 A CN 2012103286853A CN 201210328685 A CN201210328685 A CN 201210328685A CN 102998892 A CN102998892 A CN 102998892A
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China
Prior art keywords
camera
test
focusing
focus
barrel
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CN2012103286853A
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Chinese (zh)
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CN102998892B (en
Inventor
金大凤
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金大凤
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Priority to KR1020110091860A priority Critical patent/KR101263391B1/en
Priority to KR10-2011-0091860 priority
Application filed by 金大凤 filed Critical 金大凤
Publication of CN102998892A publication Critical patent/CN102998892A/en
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Abstract

The present invention relates to a camera module continuous test and focus adjustment device, and especially relates to a camera module continuous test and focus adjustment device which continuously performs image and focus tests and focus adjustments with respect to a camera module for a plurality of camera modules, and has a position detection function conducive to precise tests and focus adjustments through position detection. A fixing base, a focus adjustment part on the base, a focusing plate component and a position adjustment part are pre-adjusted to optimum positions through camera module arrangement and height detection performed by a vision part and a laser part, and the positions are adjusted through individual drive, thereby minimizing vibration, greatly raising precision for focus adjustments and tests and image tests, in addition, during the process of performing focus adjustment and test for one camera module, the image test for another camera module and assembling and disassembling for a new camera module can be performed at the same time, so as to ensure test continuity, thereby shortening time, and greatly raising a test efficiency, and the position adjustment part can adjust positions of a plurality of camera module clamps used for placing the camera modules.

Description

The camera model follow-on test and the focus control that possess position detecting function
Technical field
The present invention relates to a kind of camera model follow-on test and focus control, particularly relate to a plurality of camera models are carried out continuously the image measurement relevant with the camera model that is assembled into digital camera or mobile phone etc., focus test and focus adjustment and possessed camera model follow-on test and the focus control that helps to carry out the position detecting function of the test of precision and focus adjustment by position probing.
Background technology
Usually, be used for digital camera or mobile phone and be comprised of the housing that is used for the wiring layout image-position sensor and the camera lens that is assembled into imageing sensor the place ahead with the camera model of camera, its composition can make imageing sensor that the image of inputting by camera lens is carried out digitizing.
The kind of such camera model is roughly divided into FF type (Fixed Focus Type, fixedly focusing type) and AF type (Auto Focus Type, automatically focusing type).The FF type is the module that is fixed into a focal length, decides, can drive the module that driver set in the camera lens part changes focal length by camera lens part being applied curtage although the AF type is basic fixed focal length.AF type camera model is composed as follows: consist of lens system by a plurality of camera lenses, and because possessing the drivers such as VCM (Voice Coil Motor, voice coil motor), can move each camera lens and change its relative distance, adjust thus optical focal length.
Whether above-mentioned camera model can be carried out the adjustment process of camera model itself and described optical focal length and test normally before being assembled into digital camera or mobile phone.
Namely, difference according to spacing between camera lens and the imageing sensor, setting is input to sharpness, colourity, brightness of the portrait of imageing sensor etc., therefore, in order to be fixed and image clearly, utilize camera model test and focus control, implement the test camera model whether the process and being implemented in of driven to judge that focus has or not unusual rear and in focus the adjustment process of regulating focus in the unusual situation is arranged, then dispatch from the factory.
Fig. 1 is the structural drawing of the test of common camera model and focus control, by the assembly fixture 6 that is provided with assembling camera model 7 at main frame 10, be configured in this assembly fixture 6 above and photography target thing 1 that can enough camera model 7 photographies and the image processing apparatus that is connected with camera model 7 on being assemblied in described assembly fixture 6 form.At this moment, described photography target thing 1 is that image processing apparatus is to consist of according to the mode that is connected with camera model 7 under the state that camera model 7 is assembled to described assembly fixture 6 according to the mode of the focal length that conforms with camera model 7 and assembly fixture 6 configurations spaced apart.
In such camera model test and focus control, in order to carry out the focus test of described camera model 7, should guarantee that described assembly fixture 6 and the distance of photography target thing 1 are roughly the focal length of camera model 7, thereby the size of main frame 10 becomes very large.Therefore, in recent years, exploitation also is widely used following camera model test and focus control: namely on the top of the assembly fixture 6 that is used for assembling camera model 7 optical system 5 is set, to shrink the focal length of camera model 7, photography target thing 1 can be configured in thus the size of dwindling main frame 10 nearby of camera model 7.
Utilize the concrete test process of the test of described camera model and focus control to comprise: to the resistance value mensuration of the open circuit/short circuit test of camera model, power lead, power consumption test, input and output leakage current testing etc., to test to judge by these whether camera model is bad.
In addition, focus test and adjustment process as implementing before dispatching from the factory at camera model comprise: the precision rotation camera lens drives test etc. with fixedly focusing adjustment, image measurement, the AF that determines to connect the degree of depth according to the mode that conforms with specific fixed focal length.Described focusing is the process that the fixed-focus of camera lens is tested, image measurement is the output image of rigorous analysis camera model and test the process of defectives such as having or not unit picture element defective, cut or particle, and it is that the operation of the test automatic focusing function realized of drive divisions such as VCM that the drives camera module has itself has N/R process that AF drives test.
But, in the past, single camera module testing and focus control, can only implement test and adjustment process to a camera model, therefore, can not carry out continuous test and adjustment process to a plurality of camera models simultaneously, implement at needs in the situation of test of a plurality of camera models, the required test duration is very long, has thus the problem that power of the test descends.
In addition, for camera model is carried out the focus adjustment, the focus of carrying out nearby that need to make the focus adjustment drop to the camera lens of the camera model that will test with chuck is tested and is adjusted, but in the process that chuck is descended, can not carry out so that stable contact of chuck and camera model is the accurate adjustment of purpose, thereby has the problem that following situation usually occurs: because the contact that chuck produces camera lens, be difficult to carry out correct focus and measure, and the focus adjustment becomes bad; Perhaps in the situation of described chuck excessive descent, the camera lens of camera model is destroyed.
In addition, chuck is to form knobs in its lower end, described knobs is combined with the groove of the barrel that the upper end at described camera model forms, and described chuck makes described barrel rotation when rotated, regulate the lens location of camera model, but because of the process difficulty of precision in conjunction with described knobs and groove, thereby usually be configured by manual operation, so that the groove of the knobs of camera model and barrel coincide.
In the situation that the mode of assembling camera model by such manual operation, coincide each other according to groove and knobs is configured, precision significantly descends, chuck is when descending, because the vibration camera model departs from from the origin-location, knobs contacts to such an extent that misfit each other with groove, because such situation is quite a lot of, it such as is adjusted again at inefficient running time increases, so the required test duration is still very long, and causes the problem of power of the test decline, micrometric measurement decrease in efficiency.
Again, in the focus test process, according to the specification difference of camera model and the interval between optical system, photography target thing or the camera model is different, in these can not the situation of proper alignment, have following problem: the test error due to generation picture angular difference is different, and can not realize correct test and focus adjustment.
Particularly, the test of existing camera model as described above and focus control are in the process of adjusting focus, in order to make the barrel rotation that is positioned at described camera model top, need to make the repeatedly lifting of described chuck, therefore, whenever because of after the chuck barrel rotation, when stagger in the position of camera model, need the operation of proofreading and correct, and more increase test and focus adjusting operation time, therefore produce variety of issue along with the lifting of chuck.
The prior art document
Patent documentation
No. the 0947041st, korean registered patent
Summary of the invention
The problem that solves
In order to solve the above problems, the object of the present invention is to provide such as lower device: by being fixed for assembling the base of camera model and chuck, change the position of photography target thing, thereby prevent the position deviation of the camera model that causes because of vibration, become easily so that change operation, can significantly shorten thus the time of test and focus adjustment process and can significantly raise the efficiency.
In addition, the object of the present invention is to provide such as lower device: by measuring the arrangement interval between chuck and the camera model, the height of testing lens cylinder, precision is controlled the decline degree of chuck thus, thereby eliminate the contact that is produced by chuck, and make the camera model correct rotation in order to adjust focus.
Again, the object of the present invention is to provide such as lower device: by eliminate in the past repeatedly carry out the lifting process of chuck as purpose take focus adjustment and test, test and time of focus adjustment process can be significantly shortened, and the departing from or the variety of issue of visual angle significant difference and so on such as camera model that causes because of the rotation of chuck barrel can be solved.
In addition, the object of the present invention is to provide such as lower device: can automatically identify for the position rotating lens cylinder, be used for settling the camera model anchor clamps of camera model as the benchmark adjustment take the position of barrel by making camera model top, thereby knobs that chuck possesses and the groove of described barrel are correctly coincide, shorten thus test and focus and adjust the time, and significantly improve test correctness and reliability.
Solve the problem means
Be used for realizing foundation camera model follow-on test and the focus control that possesses position detecting function of the present invention of above-mentioned purpose, comprise: the focusing plate member, it provides light source and focusing plate; Focusing section, it utilizes described focusing plate to carry out the focus adjustment of camera model, and utilizes chuck to adjust the focal length of described camera model; The first image measurement section and the second image measurement section, each is arranged and the carries out image test since described focusing section separates predetermined distance to the left and right; The camera model department of assembly will settle the first camera Modular jig of camera model and the second camera Modular jig to separate that described predetermined distance is arranged and to left and right transmission; Vision section, the layout of the barrel that the described camera model that will be placed in the described camera model anchor clamps is possessed detects; And laser section, height to described barrel detects, wherein, layout and the height of the described barrel that possesses according to the camera model that detects by described vision section and laser section, the mode of coincideing with the groove of contactless state and described barrel according to the knobs on the chuck that is arranged on described focusing section, after the clip position of rotation and the described focusing of lift adjustment section, the focus adjustment that enforcement is undertaken by described focusing section, and in the process that any the execution focus in described the first and second camera model anchor clamps is adjusted, to another carries out image test in described the first and second camera model anchor clamps.
At this moment, can be take following content as feature: described camera model department of assembly repeatedly carries out described image measurement or focus adjustment, and carries out continuously the test of a plurality of camera models to left and right repeatedly mobile.
In addition, may further include the adjustment part, position, its with guide rail interlock of regulation with the camera model department of assembly to left and right transmission, according to the detection that described vision section arranges described barrel, adjust the camera model department of assembly front and back or about the position.
At this moment, adjustment part, above-mentioned position is characterised in that: the position of camera model department of assembly is adjusted in the detection that adjustment part, described position is arranged described barrel according to described vision section, and above-mentioned the first camera model of proper alignment or the second camera model are different in order to eliminate described the first image measurement section, the second image measurement section or the focusing section picture angular difference when test.
On the other hand, the first support sector that further comprises the guide rail that has possessed the lifting of guiding focusing section, it is characterized in that, described the first support sector drops to the basic point after above-mentioned camera model and the focusing end of focusing section, and after the test of finishing focusing section, rise, during decline, the height of the barrel that detects according to described laser section makes its groove that drops to knobs that described chuck possesses and described barrel with on the contactless identical position.
In addition, the rotation according to described chuck when regulating the focus of camera model of described focusing section makes described knobs contact the rotation that guides barrel with the groove of described barrel, and makes described knobs again place groove contactless state with described barrel when testing focus.
In addition, main frame possesses the guide rail of guiding above-mentioned focusing plate lifting, and at least a portion that comprises described main frame is by guide rail mobile the second support sector to the left and right.
At this moment, described the second support sector can the described focusing plate of proper alignment so that the picture angular difference when eliminating test according to the proper alignment of the described camera model of described vision section and laser section and focusing section is different.。
And described the first image measurement section or the second image measurement section built-in cylinder that can automatically stretch before next one test makes the image measurement head aim at the tested object camera model, after testing end, can shrink cylinder.
On the other hand, described focusing section can automatically perform the focus test and focus is adjusted operation, and after camera model is placed in described the first camera Modular jig and the second camera Modular jig when electric current is applied to sensor, execution OST or testing current.
In addition, described the first image measurement section or the second image measurement section can carry out at least a test in shadow testing, the test of image stain, stain test, color dot test, the FPN test.
The invention effect
According to the present invention, firm banking, be positioned at the focusing section on the base, focusing plate and adjustment part, position are not only by being adjusted in advance on the optimum position based on vision section and laser section to the detection of the layout of camera model and height, and their position is adjusted by driving independent of each other, thereby make minimum vibration, significantly improve the precision of focus adjustment and measurement and image measurement, and a camera model is being implemented in focus adjustment and the test process, implement simultaneously the loading and unloading to the image measurement of another camera model and new camera model, to guarantee to test continuity, has thus the shortening time, significantly improve the effect of testing efficiency, wherein, adjustment part, described position is adjusted the position of a plurality of camera model anchor clamps for settling camera model.
In addition, the present invention is by measuring the arrangement interval between chuck and the camera model, after determining the height of barrel, the decline degree of accurate control chuck, thereby eliminate the contact that is produced by chuck, and so that be used for adjusting the camera model correct rotation of focus, has thus the effect of further raising measuring accuracy.
And then the present invention keeps after falling the focusing subordinate under the state of original position and continues to carry out focus adjustment and test, therefore has to solve because of the folder of focusing section departing from or draw different and so on the variety of issue of angular difference such as camera model of causing of lifting repeatedly.
In addition, the present invention is by can automatically identifying for the position rotating lens cylinder, be used for settling the camera model anchor clamps of camera model as the benchmark adjustment take the position of barrel camera model top, thereby knobs that chuck possesses and the groove of described barrel are correctly coincide, shorten thus test and focus and adjust the time, and significantly improve test correctness and reliability.
Description of drawings
Fig. 1 is the structural drawing of common camera model test and focus control;
Fig. 2 to Fig. 3 is according to the camera model follow-on test that possesses position detecting function of the embodiment of the invention and the structural drawing of focus control;
Fig. 4 is the work synoptic diagram according to the first and second image measurement sections of the embodiment of the invention;
Fig. 5 is the detailed structure view according to focusing section and first support sector of the embodiment of the invention;
Fig. 6 is according to the adjustment part, position of the embodiment of the invention and the detailed structure view of the first and second camera model anchor clamps;
Fig. 7 is according to the focusing plate member of the embodiment of the invention and the detailed structure view of the second support sector;
Fig. 8 is according to the camera model follow-on test that possesses position detecting function of the embodiment of the invention and the work synoptic diagram of focus control;
Fig. 9 is about utilizing according to the laser section of the embodiment of the invention and the synoptic diagram of vision section adjustment chuck (collet, i.e. cartridge clip) position;
Figure 10 is the position view that the groove of the knobs of following the chuck that the focusing section according to the embodiment of the invention descends and barrel is shown;
Figure 11 is the work synoptic diagram of following between the groove of knobs that the chuck according to the embodiment of the invention rotates and barrel.
Symbol description
110: vision section 120: laser section
140: the second image measurement sections of 130: the first image measurement sections
131,141: image measurement head 132,142: cylinder
160: the second camera Modular jigs of 150: the first camera Modular jigs
151,161: lid 170,180: the adjustment part, position
300: focusing section 320: chuck
321: knobs 400: the focusing plate member
500: the second support sectors 510,520,530,540: guide rail
600: the first support sectors 610,620: guide rail
700: camera model 710: barrel
711: the groove 800 of barrel: camera model department of assembly
900: pedestal part 1000: transmit rail
Embodiment
By drawings and Examples, describe aforesaid the present invention in detail.
Fig. 2 to Fig. 3 possesses the camera model follow-on test of position detecting function and the detailed structure view of focus control.
As shown in the figure, described camera model follow-on test and the focus control that possesses position detecting function comprises: focusing plate member 400, and it provides light source and focusing plate; Focusing section 300, it utilizes described focusing plate member 400 to carry out focus adjustment and the test of camera model, and utilizes chuck to adjust the focal length of described camera model; The first image measurement section 130 and the second image measurement section 140, its each since the 300 carries out image tests to left and right separating the predetermined distance setting of described focusing section; Camera model department of assembly 800, it will settle the first camera Modular jig 150 of camera model and the second camera Modular jig 160 separates described predetermined distance setting and to left and right transmission; Vision section 110, its layout to the barrel that the camera model that will be placed on the described camera model anchor clamps 150,160 possesses detects; And laser section 120, it detects the height that is placed in the barrel on the described camera model anchor clamps, layout and the height of the described barrel that possesses according to the camera model that detects by described vision section 110 and laser section 120, the mode of coincideing with the groove of contactless state and described barrel according to the knobs on the chuck 320 that is arranged on described focusing section 300, behind the chuck of rotation and the described focusing of lift adjustment section 300, realize focus adjustment and test by described focusing section 300, and to described the first and second camera model anchor clamps 150, in 160 any carried out in the process of focus adjustment and test, to described the first and second camera model anchor clamps 150, another carries out image test in 160.
Described focus adjustment process comprises the process of described focusing section's 300 tests and adjusting focal length.
The camera model follow-on test and the focus control that possess described position detecting function carry out open circuit/short circuit test (Open/ShortTest below is called OST), testing current, automatic focus test and adjustment, image measurement.
Example as described image measurement comprises: shadow testing, defective (defective: stain, RGB) test, stain (Blemish) test, FPN test etc.
The camera model follow-on test that possesses position detecting function and focus control according to the embodiment of the invention can be carried out OST, testing current, focus test and adjustment, shadow testing, image stain and stain, color dot test (Image Blemish ﹠amp; Defect Test) and FPN test, but should be noted, can change or increase/delete the kind of testing or sequentially.
And then, according to the camera model follow-on test that possesses position detecting function of the embodiment of the invention and focus control before described focus adjustment and testing procedure, the height of the layout of the barrel that possesses according to the camera model that is detected by described vision section 110 and the barrel that detects by described laser section 120, detect the tram of the camera model of tested object, so that focus adjustment and test process are accurately and rapidly.
For above-mentioned image measurement, take Fig. 2 and Fig. 3 as the basis, with reference to relevant drawings, illustrate about its focus adjust and testing efficiency than the embodiment of the detailed formation of each composition section of raising more in the past.
At first, as shown in the figure, described the first and second camera model anchor clamps 150,160 spaces that are provided for settling described camera model make barrel that described camera model possesses to exposing outside, and the lid 151,161 of the fixing camera model of settling are provided.Thus, by rotating described lid 151,161, can in described the first and second camera model anchor clamps 150,160, load and unload described camera model easily, can utilize described lid 151,161 to fix the camera model of settling.
In addition, described the first and second camera model anchor clamps 150,160 separate predetermined distance and are arranged in the described camera model department of assembly 800, and, by being positioned at the described camera model of the transmission rail 1000 guiding department of assembly 800 on the base 900 that is provided with described structure member, so that it is to left and right movement, thus with described the first and second camera model anchor clamps 150,160 to left and right transmission.
Along with described the first and second camera model anchor clamps 150,160 this conveying, aim at Face to face described each camera model anchor clamps 150,160 structure member can be started working, if wherein any aimed at the described first or second image measurement section 130,140 Face to face after described the first and second camera model anchor clamps 150,160 moved, then the described first or second image measurement section 130,140 at first carries out image measurement to these camera model anchor clamps.
As shown in Figure 4, begin at the described first or second image measurement section 130,140 image measurement, when finishing, for the ease of changing next camera model, image measurement head 131,141 can pass through cylinder 132,142 to forward and backward movement.
That is, described image measurement head 131,141 is shifted to the rear because cylinder 132,142 shrinks after test finishes, can the convenient operation personnel unload camera model 700 from camera model anchor clamps 150,160 thus.
The described first or second image measurement section 130,140 measures for camera model being carried out follow-up image resolution ratio after focus test and the end of focus adjustment process, carries out various tests.
For example, carry out shadow testing, image stain, stain, color dot test and FPN test, in described shadow testing, set 49 zones in whole size, by regional read brightness, RGB is (red, green, blue) value, utilize deviate to carry out colourity and luminance test by the zone.This can carry out simultaneously with image stain, stain and color dot test.Described FPN test can be distinguished the circuit noise (Line Noise) of image, can be laterally, vertically set respectively.
In addition, if any in described the first and second camera model anchor clamps 150,160 aimed at described vision section 110 Face to face, then described vision section 110 can detect the barrel to the described camera model that exposes outside of described camera model anchor clamps, thereby can detect the layout (or existence) of described barrel.At this moment, the described vision section groove arrangement that can consist of on the described barrel is the layout of benchmaring barrel.
The layout of the barrel that detects according to described vision section 110, described focusing section 300 makes described chuck rotation in advance, so that the groove that the knobs that the bottom of described chuck 320 possesses and described barrel possess coincide each other, thereby can adjust in advance the position of described knobs, thus, aim at Face to face at described camera model anchor clamps in the situation of described focusing section 300, described focusing section 300 is descended immediately and regulate focus, therefore can significantly shorten and regulate the required running time of focus.This is elaborated hereinafter.
On the other hand, when in described the first and second camera model anchor clamps any aimed at described laser section 120 Face to face, then described laser section 120 can detect the interval between described camera model and the described focusing section 300, thus height that can the detector lens cylinder.
The layout and the height that detect by described vision section 110 and described laser section 120, can determine the position of barrel, described focusing section 300 can be according to the position of the barrel of determining, decide the groove that makes described knobs that chuck 320 possesses and described barrel with contactless identical assigned position each other, and drop to definite position so that the groove of knobs and barrel coincide each other.
So, contactless identical each other by the groove that makes knobs and barrel, can prevent easily that existing destruction by the camera lens due to the contact of chuck 320 generations or the vibration that produces from causing focus to depart from the phenomenon of desired adjusting numerical value when chuck 320 rotation.That is, can guarantee meticulous focus adjustment control.This also is elaborated hereinafter.
As mentioned above, behind the position of finishing the barrel that possesses by vision section 110 and laser section 120 detection camera modules (comprise and arranging and height), any in described the first and second camera model anchor clamps 150,160 is positioned at position aspectant with it to described focusing section's 300 transfers.
At this moment, shown in (a) among Fig. 5, described focusing section 300 can be with the lens barrel morphosis, in order to shorten focal length, optical system 310 such as collimation camera lens (Collimator Lense) can be set on lens barrel top, and at this moment, described collimation camera lens is conducive to the picture angle of described camera model, even so that the light source that is provided by focusing plate member 400 also can focus on described camera model easily in short distance, can significantly reduce the shared volume of whole device thus.
In addition, shown in (b) among Fig. 5, described focusing section 300 by guide rail 610,620 and other the first support sector 600 of being located on the described base 900 be connected to each other the lifting of the guide rail 610 of described the first support sector 600, the described focusing of 620 guiding section 300.At this moment, in order to support securely described focusing section 300, described the first support sector can possess a plurality of guide rails 610,620 and be connected with described focusing section 300.Thus, make the minimum vibration of described focusing section 300 due to descending.
And then, for described focusing section 300, shown in (c) among Fig. 5, possesses the chuck 320 be used to the focus of adjusting described camera model in the lens barrel bottom, knobs 321 can be formed at the bottom at described chuck 320, makes its size untouchable identical each other with the groove of the barrel that is arranged on described camera model top.
Therefore, if described focusing section 300 faces each other with described camera model and aims at, then described focusing section 300 descends for the focus of regulating described camera model, described focusing section 300 can and highly come automatically to regulate the decline degree according to the layout of the described barrel that detects by described vision section 110 and laser section 120, so that described knobs 321 is positioned at the groove of described barrel each other on the contactless identical position.
At this moment, described vision section 110 and laser section 120 can be directly connected in the left and right side of described focusing section 300.
Except basic structure as described above, the described camera model follow-on test that possesses position detecting function and focus control are by changing camera model anchor clamps 150,160 or change the focusing plate of focusing plate member 400 according to test approaches according to the kind of camera model, thereby can carry out different tests to the machine of various camera model, so versatility is excellent.
But, by machine and the change focusing plate of such change camera model, the optimum position that might change the test position that is placed in the camera model on the camera model anchor clamps 150,160 or the light source that is provided by the focusing plate is provided.Need thus to change described camera model anchor clamps 150,160 position or the position of focusing plate member 400.
Therefore, at first, as shown in Figure 6, the position that changes in order to ensure changing along with the machine of described camera model, the adjustment part, position 170,180 of the described camera model anchor clamps 150 of control, 160 position can be arranged on described camera model anchor clamps 150,160 and described camera model department of assembly 800 between.
At X, transmit described camera model anchor clamps 150,160 position of the described barrel that adjustment part, described position 170,180 can detect according to described vision section 110 on the Y coordinate, the camera model anchor clamps are moved to front, rear, left and right.In addition, adjustment part, described position 170,180 is owing to is connected with described camera model department of assembly 800, thereby can move with described camera model anchor clamps 150,160 along with the movement of described camera model department of assembly 800.
Thus, adjustment part, described position 170,180 is in order to make described focusing section 300 and image measurement section 130,140 can test easily camera model, can be with described camera model anchor clamps 150,160 position control in the optimum position, and according to can make it aim at described focusing section 300 or image measurement section 130,140 mode is adjusted the position.
In addition, as mentioned above, when changing the focusing plate, for the light source that makes the focusing plate focuses on camera model, needed to adjust the whole position of described pedestal part 900, the vibration that causes thus causes position deviation or the fine setting difficult of camera model, thereby the frequency of generation test error is quite high in the past.Thus, the reliability of test and correctness descend.
For this reason, as shown in Figure 7, according to embodiments of the invention, provide another second support sector 500 that is used for transmitting the focusing plate member 400 that possesses described focusing plate.
Described the second support sector 500 is located on the described pedestal part 900 in addition, supports described focusing plate member 400, is connected with described focusing plate member 400 by guide rail 510,520, thereby can guides the lifting of described focusing plate member 400.At this moment, in order to ensure the fastness of described focusing plate member 400 when connecting, also can be consisted of by a plurality of guide rails 510,520.
This can make when tested object is changed and select easily focusing plate member 400 with correspondence position, carries out in case of necessity templating (templating), can be applied to rapidly various determination objects.
In addition, described the second support sector 500 is provided with its main body part of guiding to left and right mobile guide rail 530,540, so that a main body part can be to left and right movement.Along with the left and right movement of such the second support sector 500 main bodys, the result is that described focusing plate member 400 can be simultaneously to left and right movement.
According to above-mentioned structure, focusing plate member 400 can be carried to front, rear, left and right, the replacing of corresponding focusing plate member 400 and it is arranged on the optimum position is so that it aims at described focusing section 300 and camera model.
The above-mentioned camera model follow-on test that possesses position detecting function and the structure of focus control may further include general controller, and it is responsible for driving and participates in the motor that drives and required led light source and the input and output of light source of controlling described focusing plate member in described device.As the example of described driving, can for example comprise: the first or second image measurement section 130,140 conveyings with respect to cylinder; The first support sector 600 is with respect to the lifting of focusing section 300; The second support sector 500 transmits with respect to the front, rear, left and right of focusing plate member 400; Transmit with respect to camera model anchor clamps 150,160 front, rear, left and right adjustment part, position 170,180; And described focusing section 300 is with respect to rotation of chuck 320 etc.
At this moment, described driving is controlled in the position of the general controller described barrel that can detect according to described vision section 110 and laser section 120.
Below, according to said structure, take Fig. 8 as the basis, by Fig. 9 to Figure 11, describe in detail according to the camera model follow-on test that possesses position detecting function of the embodiment of the invention and the job order of focus control.
At first, described the first and second camera model anchor clamps 150,160 that are assemblied in camera model department of assembly 800 can be guided along described transmission rail 1000, make described the first and second camera model anchor clamps 150,160 aim at Face to face successively each described first or second image measurement section 130,140, vision section 110, focusing section 300, laser section 120.
Below, although the state of aiming at described the first image measurement section 130 take described the first camera Modular jig 150 is elaborated to subsequent process as embodiment, but also can under the state of described the second image measurement section 140 of the second camera Modular jig 160 alignings, carry out, also can under being positioned at the state of optional position, described camera model department of assembly 800 carry out, when finishing rear initial start, described camera model department of assembly 800 can make the described first or second camera Modular jig 150,160 aim at the described first or second image measurement section 130, in 140 any also begins test (S1).
At first, aim under the state of described the first image measurement section 130 at described the first camera Modular jig 150, the user can be placed in described camera model on the first camera Modular jig 150 of aiming at described the first image measurement section 130, and input is used for the control signal of test beginning.
At this moment, when camera model is positioned on described the first camera Modular jig 150, carry out simultaneously OST.Described OST shows the open circuit/short circuit value of present module stitch, can test nearly 32 stitch, and it can be set according to camera model.
Execution work testing current when in addition, camera model is worked.Described working current test can be tested nearly 8 passages (ch), and this also can set according to camera model.
If above-mentioned test finishes, then described camera model department of assembly 800 can transmit described the first camera Modular jig 150 and described the second camera Modular jig 160, makes described the first camera Modular jig 150 aim at Face to face described vision 110 (S2) of section.
At this moment, as shown in Figure 9, the layout of the barrel 710 that the described camera model of described vision section's 110 detections possesses, for example, the layout angle of the groove 711 that can possess by x, y coordinate and the described barrel 710 of surveying described barrel 710 centers is identified.
Thus, described focusing section 300 can following adjustment position: make described chuck 320 rotations by the angle of identifying described groove 711, so that the knobs 321 that described chuck 320 possesses is coincide with described groove.In addition, can followingly adjust with the adjustment part, position 180 that described the first camera Modular jig 150 is connected: along described x, y coordinate described the first camera Modular jig 150 is transmitted to front, rear, left and right, so that the center of barrel 710 is consistent with the center of chuck 320.
Thus, can make the knobs 321 of described chuck 320 and groove 711 accurate the coincideing of described barrel 710.
If finish said process, then described camera model department of assembly 800 can transmit described the first camera Modular jig 150, and makes it aim at Face to face described laser 120 (S3) of section.
At this moment, shown in Fig. 9 a, described laser section 120 can survey the interval h between the described barrel 710 of focusing section 300 and camera model, tests the height of described barrel 710, can determine thus the decline degree of described focusing section 300.
Then, described camera model department of assembly 800 can transmit described the first camera Modular jig 150, and makes described the first camera Modular jig 150 aim at (S4) with described focusing section 300 with facing each other.
Then, described focusing section 300 can be according to the height of described laser section 120 detected described barrels, guide rail along described the first support sector 600 descends, so that the knobs 321 that is arranged on the described chuck 320 is coincide with contactless shown in Fig. 9 (b) like that with the groove 711 that is arranged on the barrel 710 on the described camera model, adjust relevant test and carry out with focus, and the position after can keeping descending is until finish focus adjustment and test.
At this moment, as shown in figure 10, described focusing section 300 can make described chuck 320 rotations to the position that demonstrates optimum value based on resolution test, and thus, described knobs 321 contacts with the groove 711 of barrel 710, and barrel 710 is rotated.In addition, along with the rotation of described barrel 710, be arranged on the lens lifting on the described camera model, to adjust focus.
At this moment, described resolution test is that the focusing plate to described focusing plate member 400 carries out the value of demonstrating after the digitizing, if regional meets the standard that sets by test.In addition, described resolution test determinating reference is the deviate of neighboring area and standard are compared and to reflect final decision.At this moment, described focusing plate can be formed by the former figure of TV.
In addition, in order to improve described resolution test precision, as mentioned above, described focusing plate member 400 can be carried out lifting and movement along the guide rail that is arranged on the guide rail in described the second support sector 500 and be arranged in described the second support sector 500 of a part, thus, described camera model is point-blank correctly aimed at focusing section 300 and described focusing plate member 400, and can regulate according to the specification of camera model the lifting of described focusing plate member 400, different to eliminate the picture angular difference.
On the other hand, in the focus adjustment process of described focusing section 300, if groove 711 continuous contacts of the knobs of described chuck 320 321 and barrel 710, then not only can produce vibration because of rotation, and increased the vibration that is produced by external cause (vibration due to the inertia that produces such as after the rotation of chuck 320 finishes the time etc.) and cause described barrel 710 rotations, therefore exist focus to adjust the problem of precise decreasing.
In addition, owing to implement the test of repeatedly focus adjustment and focus until meet standard, when each adjustment focus, in order to adjust focus, chuck can be rotated, produce thus vibration, thereby in the groove 711 contacted situations of described knobs 321 and described barrel 710, directly pass on and vibration that accumulation produces, make focus adjust precise decreasing.
Therefore, described focusing section 300 can carry out job control as shown in Figure 11 in order to reduce the caused impact of vibration as described above.
Namely, shown in Figure 11 a, 1. lower at the state that the groove 711 of the knobs 321 of initial described chuck 320 and described barrel 710 is arranged in contactless identical mode each other, if described focusing section 300 makes chuck 320 rotations, then shown in Figure 11 (b), groove 711 one sides of described barrel 710 contact with each other with knobs 321 one sides and are rotated 2., if the focus adjustment process finishes, then shown in Figure 11 (c), 1. the knobs 321 that described focusing section 300 makes described chuck 320 returns to contactless state again with the groove 711 of barrel 710, thereby can not be subjected to the pressure due to the external cause.Can significantly improve thus the precision of focus adjustment process.
On the other hand, as mentioned above, if the first camera Modular jig 150 is aimed at focusing section 300, the the second camera Modular jig 160 that then is arranged in the described camera model department of assembly 800 from described the first camera Modular jig 150 predetermined distances is aimed at described the second image measurement section 140 Face to face, and in the process of carrying out the focus adjustment of described the first camera Modular jig 150 and focus test, can be replaced with another camera model and it is placed on described the second camera Modular jig 160 (S4).At this moment, as mentioned above, if new camera model is placed in described the second camera Modular jig, then also can carry out described OST test to described new camera model.
Then, if focus adjustment and test to described the first camera Modular jig 150 finish, then, described camera model department of assembly 800 is for the focus adjustment of described the second camera Modular jig 160 and test and can carry out transmission centered by described the second camera Modular jig 160.
In other words, for carry out take above-mentioned focus adjustment and test as purpose, to the layout of barrel and the detection of height, described camera model department of assembly 800 makes described the second camera Modular jig 160 aim at successively described laser section 120 and vision section 110.
At this moment, as shown in the figure, compare with described vision section 110, laser section 120 is more near described the second camera Modular jig 160, therefore at first aim at laser section 120 and carry out height detection (S5), the layout of then aiming at described vision section 110 and carrying out barrel detects (S6), and transmitting range is minimized.At this moment, can be according to the layout of the described barrel 710 that detects, adjustment part, position 170 between described the second camera Modular jig 160 and camera model department of assembly 800 with described the second camera Modular jig 160 forward, after, left, right transmission, so that the center of barrel 710 is aimed at the center of described chuck 320 point-blank, and can be placed in according to formation the layout angle of barrel 710 of the camera model of described the second camera Modular jig 160, make in advance described chuck rotation, so that the knobs 321 of described chuck 320 is coincide with the groove of described barrel 710 is contactless.
Then, described camera model department of assembly 800 can make described the second camera Modular jig 160 aim at described focusing section 300, carries out focus adjustment and the test process (S7) identical with described the first camera Modular jig 150.
At this moment, if make described the second camera Modular jig 160 aim at focusing section 300, then described the first camera Modular jig 150 is aimed at described the first image measurement section 130.At this moment, if described the first image measurement section 130 is with before described the first camera Modular jig 150 is aimed at, described camera model department of assembly 800 stretches in advance described image measurement head 131 and aims at it, then described the first image measurement section 130 can carry out above-mentioned image measurement, at this moment, described image measurement is that focus adjustment and test process with described the second camera Modular jig 160 carries out simultaneously.
Namely, after 130 pairs of described the first camera Modular jig 150 carries out image tests of described the first image measurement section, described image measurement head 131 returns to the origin-location, behind the camera model that unloads after image measurement finishes new camera model is assembled to described the first camera Modular jig 150, such image measurement and cargo handling process can be finished to the focus adjustment of described the second camera Modular jig 150 and in testing in focusing section.
In addition, if the focus adjustment of described the second camera Modular jig 160 and test process finish, then described camera model department of assembly 800 begins to transmit centered by described the first camera Modular jig 150 for focus adjustment and test again, when the focus of described the first camera Modular jig 150 is adjusted, described the second camera Modular jig 160 is aimed at described the second image measurement section 140 Face to face, implement image measurement and the cargo handling process of the camera model of described the second camera Modular jig 160, thereby can in the camera model anchor clamps that differ from one another, realize follow-on test.
Like this, camera model follow-on test and the focus control that possesses position detecting function according to the present invention alternately carries out to improve focus adjustment and measuring accuracy as the position probing of the barrel of purpose to a plurality of each camera model that differs from one another, and in the situation of any camera model grip alignment focusing section, carry out in the focus adjustment and test of described focusing section, can be to the loading and unloading of another camera model carries out image test or camera model, and realize continuously test therefore significantly improving testing efficiency and measuring accuracy.
So, camera model follow-on test and focus control according to the embodiment of the invention make the transmission of the first or second image measurement section, focusing section, vision section, laser section, adjustment part, position, focusing plate and camera model department of assembly and drive robotization according to testing procedure, and promptly move to correct position, automatically perform test, therefore can carry out more effective and accurate test.
And then described camera model follow-on test and focus control can utilize view bag (Viewpack-EX) measuring instrument and measure according to the numerical value of testing, and also can use in common PC.
At this moment, in a PC, in order to measure simultaneously the test value of two camera models, two vision bags (vision pack) are installed they are worked simultaneously.In addition, if above-mentioned test is carried out focus test and adjustment in a side, then carry out OST, working current test or image measurement at opposite side, it is therefore preferable that the test procedure that is built among the described PC sets according to the mode that the test result with both sides is simultaneously displayed on monitor.
Described OST or working current test are: if operating personnel press start button settle the tested object camera model in the camera model anchor clamps after, then driving sensor is carried out test immediately, therefore can further shorten the test duration.

Claims (11)

1. camera model follow-on test and focus control that possesses position detecting function comprises:
The focusing plate member, it provides light source and focusing plate;
Focusing section, it utilizes described focusing plate execution to the focus adjustment of camera model, and utilizes chuck to adjust the focal length of described camera model;
The first image measurement section and the second image measurement section, its each be used for the carries out image test to left and right separating the predetermined distance setting since described focusing section;
The camera model department of assembly, it is used for being mounted with, and the first camera Modular jig of camera model and the second camera Modular jig separate that described predetermined distance is arranged and to left and right transmission;
Vision section, its layout to the barrel that the described camera model that will be placed in the described camera model anchor clamps possesses detects; And
Laser section is detected the height of described barrel,
It is characterized in that,
The layout of the described barrel that possesses according to the camera model that detects by described vision section and laser section and height, the mode of coincideing with the groove of contactless state and described barrel according to the knobs on the chuck that is arranged on described focusing section, after the clip position of rotation and the described focusing of lift adjustment section, the focus adjustment that enforcement is undertaken by described focusing section, and in the process that any the execution focus in described the first and second camera model anchor clamps is adjusted, to another carries out image test in described the first and second camera model anchor clamps.
2. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that, described camera model department of assembly repeatedly carries out described image measurement or focus adjustment, thereby carries out continuously the test of a plurality of camera models to left and right repeatedly mobile.
3. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that, further comprise the adjustment part, position, it is used for the guide rail interlock of regulation the camera model department of assembly to left and right transmission, the layout of the described barrel that detects according to described vision section is adjusted the camera model department of assembly in forward and backward or left and right position.
4. camera model follow-on test and the focus control that possesses position detecting function according to claim 3, it is characterized in that, the layout of the described barrel that adjustment part, described position is detected according to described vision section is adjusted the position of camera model department of assembly, make described the first image measurement section of described the first camera model or the second camera module alignment, the second image measurement section or focusing section, the picture angular difference when testing to eliminate is different.
5. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that, the first support sector that further comprises the guide rail with the lifting of the described focusing of guiding section, described the first support sector makes the basic point after the focusing subordinate is down to described camera model and aiming at of focusing section finished, and it is risen after the test of finishing focusing section, during decline, the height of the barrel that detects according to described laser section makes its groove that drops to knobs that described chuck possesses and described barrel with on the contactless identical position.
6. camera model follow-on test and the focus control that possesses position detecting function according to claim 5, it is characterized in that, the rotation according to described chuck when regulating the focus of camera model of described focusing section makes described knobs contact the rotation of guiding barrel with the groove of described barrel, and makes the groove of described knobs and described barrel again be in contactless state when the test focus.
7. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that, further comprise the second support sector, its main body possesses the guide rail of guiding described focusing plate member lifting, and at least a portion of described main body by guide rail to left and right movement.
8. camera model follow-on test and the focus control that possesses position detecting function according to claim 7, it is characterized in that, described the second support sector makes described focusing plate member aim at the described camera model of aiming at by described vision section and laser section and focusing section, and the picture angular difference when testing to eliminate is different.
9. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that, described the first image measurement section or the second image measurement section built-in cylinder that before next one test, automatically stretches, the image measurement head is aimed at the tested object camera model, after test finishes, cylinder is shunk.
10. camera model follow-on test and the focus control that possesses position detecting function according to claim 1 is characterized in that,
Described focusing section automatically performs the focus test and focus is adjusted operation,
When after camera model is placed in described the first camera Modular jig and the second camera Modular jig, sensor being applied electric current, carry out OST or testing current.
11. camera model follow-on test and the focus control that possesses position detecting function according to claim 1, it is characterized in that described the first image measurement section or the second image measurement section carry out at least a test in shadow testing, the test of image stain, stain test, color dot test, the FPN test.
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