CN203385925U - Automatic focusing device of high-pixel module group - Google Patents
Automatic focusing device of high-pixel module group Download PDFInfo
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- CN203385925U CN203385925U CN201320427031.6U CN201320427031U CN203385925U CN 203385925 U CN203385925 U CN 203385925U CN 201320427031 U CN201320427031 U CN 201320427031U CN 203385925 U CN203385925 U CN 203385925U
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Abstract
The utility model provides an automatic focusing device of a high-pixel module group. The automatic focusing device comprises a workbench frame and a control panel and a focusing testing area arranged on the workbench frame, wherein the focusing testing area is equipped with a focusing testing station, a focusing light source, a dead pixel light source, a CCD (Charge Coupled Device) lens, a height sensor and a focusing handwheel, the focusing handwheel adjusts the height of the focusing light source, and the focusing testing station can realize accurate positioning control for the module group via a motor and is equipped with a focusing mechanism for adjusting the focusing handwheel. The automatic focusing device can greatly improve the focusing efficiency of the high-pixel module group, ensures focusing consistency of products, can detect dead pixels of the module group, and is simple and convenient in operation and high in the automation degree.
Description
Technical field
The utility model relates to a kind of focusing detection device, especially relates to a kind of automatic focusing and dirty bad point detection equipment of high pixel module.
Background technology
At present, along with people require more and more highlyer to the take pictures sharpness of picture of electronics, high-pixel camera head mould group becomes the new lover in market gradually, and this impels each module producer to start one after another to march high pixel module field.And the focusing sensitivity of high pixel module is high, cause artificial focus effect and inefficiency, tend to the qualified module of appearance itself and the NG that focuses but occurs, reduce yield, thereby affected shipping Qty., and improved manufacturing cost.
The semi-automatic focusing equipment (CCM board) dropped at present is owing to being still in essence the method that adopts artificial focusing, therefore have following defect: 1, production efficiency is low, general artificial focusing efficiency UPH:140pcs(5M), 120pcs(8M), 70PCS (13M); 2,, because focus pawl and module adopt manual-alignment, inserted mode, therefore often can not disposablely put in place, cause extend man-hour, even scratch module end face; 3, the anglec of rotation of manually focusing be difficult for to be controlled, and causes the focus effect consistance poor; 4, operating personnel are many, and working strength is large, cause space hold rate and employee's fatigue strength to increase.
The utility model content
This new utility model provide automatic focusing apparatus can overcome the above problems, overcome the problem that manually-operated efficiency is low, focus effect is poor, its technical scheme is as described below:
A kind of automatic focusing apparatus of high pixel module, comprise worktable frame and be arranged on control panel, the focusing test zone on worktable frame, described focusing test zone is provided with the focusing handwheel of focusing test station, focusing light source, dirty bad point light source, CCD camera lens, height sensor and adjustment focusing light source height, described focusing test station can realize the accurate positioning control to module by motor, and is provided with for regulating the focus adjusting mechanism of focusing handwheel.
The top of described worktable frame is provided with top cover, the first half is provided with two black glass side doors of opening, centre is provided with work top, described focusing test zone is positioned on work top, the front lower place of described work top is provided with keyboard support, the surrounding of described worktable frame Lower Half is provided with the iron plate side door, and bottom is provided with the castor of mobile and fixed equipment.
Described control panel is arranged on the top of focusing test zone, comprises computer switch, the USB interface for program updates, display, the master switch of opertaing device power supply and the emergency stop switch that equipment is suspended controlling the focusing test station and start.
Described focusing test zone is provided with two focusing test station, the corresponding dirty bad point light source of each focusing test station, and share the focusing light source.
Described focusing test zone is provided with back up pad, for supporting CCD camera lens, height sensor and dirty bad point light source, described CCD camera lens compensates for center and the angle position to module and focusing handwheel, described height sensor is for measuring its height to the module end face, and the compensation focusing handwheel drops to the height of module.
The drive link that described focusing test zone is provided with the screw rod be connected with focusing handwheel, the bevel gear be connected with screw rod, is connected with bevel gear, described drive link is connected with the focusing light source, and described focusing handwheel is regulated the height of focusing light source by screw rod, bevel gear and drive link.
Described focusing test zone is provided with for simulating the teleconverter of actual focusing from effect, and, for locating the guide shaft of focusing light source height, described guide shaft is fixed with runners.
Described focusing test station comprises the tool fixture, XY translation stage, light barrier of test station mainboard, reset button, start button, origin switch, motor, tank chain, cover pressing mechanism, fixing PCI E frock, portal frame, the focus adjusting mechanism of firm motor shaft; described tank chain is for the protection of circuit; described cover pressing mechanism is for putting and compress module, and described XY translation stage is for the position all around of adjusting tool tool.
Described focus adjusting mechanism comprises driving wheel, engaged wheel, belt, focusing motor, supports the focusing mount fixed head of whole focus adjusting mechanism and adopt the focusing of bearing fit to take turns holder with the focusing mount fixed head, described driving wheel is driven by the focusing motor, described engaged wheel is controlled by driving wheel by belt, and described focusing wheel holder is taken turns and is connected for fixing focusing engaged wheel.
Described focus adjusting mechanism also comprises nutted rod, for regulating belt tension.
Described automatic focusing apparatus can significantly promote the focusing efficiency of high pixel module, guarantees the consistance of product focusing, can carry out dirty bad point detection to module simultaneously.
The accompanying drawing explanation
Fig. 1 is the embodiment schematic perspective view of the automatic focusing apparatus of the high pixel module of the utility model;
Fig. 2 is the framework schematic diagram of embodiment;
Fig. 3 is the cut-away view of embodiment;
Fig. 4 is the focusing test zone schematic diagram of embodiment;
Fig. 5 is the focusing test station schematic diagram of embodiment;
Fig. 6 is the focus adjusting mechanism schematic diagram of embodiment;
Fig. 7 is the control panel schematic diagram of embodiment;
Fig. 8 is the operation steps schematic diagram in embodiment.
Embodiment
The automatic focusing apparatus of the high pixel module that as depicted in figs. 1 and 2, the utility model provides is comprised of control panel 100, focusing test zone 200 and worktable frame 300.
On described worktable frame 3,301～306 parts are installed, its top is equipped with top cover 301; The frame first half is installed 3 fans pair and is opened black glass side door 302, can, when facilitating the surveillance equipment running status, avoid the interference of ambient light; Two work tops 303 are laid in centre, as the platform that supports two focusing test station; Work top 303 front lower places are provided with keyboard support 304, in order to put keyboard; Frame Lower Half surrounding is installed iron plate side door 305, in order to protect device interior electrical module and cabling; Bottom is 4 castors 306, in order to mobile and fixed equipment.
As shown in Figure 3, focusing test station 1 and focusing test station 2 are installed on described work top 303, light source 11 is the focusing light source, and light source 21 and light source 22 are dirty bad point light source.On the focusing test station, frock mainboard 13, frock mainboard 23 are housed respectively, the spacing of two focusing test station is 470mm, to take into account MTF and SFR target, and it is symmetrical to be mirror image, there is stronger independence, the independent cabling mode of employing, structure and electric on can not interfere with each other, be that any one focuses test station in focusing or test, can start or close another station at any time, increased in addition the Whole Equipment aesthetics.
Each focusing test station is provided with 1 focusing position and 1 dirty bad point test position, lay respectively under focusing light source 11 and dirty bad point light source, the brightness of each light source can be done corresponding adjusting according to the test light as requested, wherein focus light source 11 height also can according to the focusing module requirement change, can meet the different characteristics product.
Described focusing test station adopts at the light source of " focusing position " mode of sharing, and the light source of " dirty bad point test position " is independent, fully improves space availability ratio.
As shown in Figure 4, described focusing test zone comprises back up pad 201, back up pad 202, CCD camera lens 203, CCD camera lens 204, height sensor 205, height sensor 206, teleconverter 207, teleconverter 208, focusing handwheel 212, coordinates screw rod 211, bevel gear 209, drive link 210, guide shaft 213, runners 214, dirty bad point light source 21 and dirty bad point light source 22.
Described height sensor adopts the Laser height sensor, utilizes laser ranging.
Described back up pad 201 is for supporting CCD camera lens 203, height sensor 205 and dirty bad point light source 21, same, and described back up pad 202 is for supporting CCD camera lens 204, height sensor 206 and dirty bad point light source 22.
Described CCD camera lens 203 and CCD camera lens 204 are taken the module end face and carry out feature identification, are used for carrying out module and focusing handwheel 212 center and angle position compensation.Described height sensor 205 and 206 is the laser elevation sensor, and for measuring its height to the module end face, compensation focusing handwheel 212 drops to the height of module.Teleconverter 207 and 208 be used for simulating actual focusing from effect.
Adopting CCD camera lens and height sensor is in order to realize the accurate focusing of robotization, and machine vision and two kinds of compensatory devices of laser ranging of adopting, machine vision is responsible for guaranteeing focusing pawl and the matching of camera lens on the center of circle and angle, and laser ranging energy precisive focusing pawl inserts the degree of depth of camera lens groove.These two functions can effectively be avoided the scuffing of pawl for the camera lens end face of focusing when realizing equipment automatization.Can say, the utilization of these two compensatory devices is the primary prerequisites that realize the robotization focusing.Described CCD camera carries out the identification of module petal, be not a kind of means, prior purpose is can obtain the current home position of module and petal angle-data after CCD identification, so just can calculate focusing pawl head by software will need with the module coupling displacement of compensation, thereby controls motor movement to target location.
On teleconverter, utilize bush structure can realize the general of 3X, 4X, 5X teleconverter, in design, each station is equipped with CCD image system and Laser height sensor, the accurate insertion of can guarantee to focus claw and module.Further, guarantee that module parallels with CCD, teleconverter, can improve accuracy that the CCD feature identifies and visual field to heart degree.
Utilize focusing handwheel 212, then coordinate the height that screw rod 211, bevel gear 209, drive link 210 can up-down adjustment focusing light source 11.First utilize the focusing handwheel 212 of a side to drive screw rods 211 rotations, and torsion is delivered to the screw rod 211 of opposite side by bevel gear 209 and drive link 210, make it rotation, thereby played the effect that the light source height is regulated in both sides simultaneously.Wherein target used is placed in the drawer of focusing light source 11, and utilizes snap close to fix, and while needing to change target, can open snap close, pulls out drawer.
Further, utilize the guide shaft 213 that is carved with scale value, can locate the height of focusing light source 11.And with the fixing guide shaft 213 of runners 214.
Focusing test station details as shown in Figure 5, comprises tool fixture 407, XY translation stage 408, light barrier 409, portal frame 410 and the focus adjusting mechanism 411 of test station mainboard, reset button 401, start button 402, origin switch 403, motor 404, tank chain 405, cover pressing mechanism 406, fixing PCI E frock.
Make mistakes or during manual debugging, press reset button 401 when system, the frock mainboard returns to enable position automatically, and each motor returns origin position.After being well placed module, press start button 402, the frock mainboard completes focusing and the test of dirty bad point according to the program setting step automatically.Origin switch 403 is as the initial position of motor 404, i.e. the true origin of respective shaft.Motor 404 be used for realizing X Y Z the accurate positioning control of U axle, wherein X-axis is fore-and-aft direction, Y-axis is left and right directions, Z axis is above-below direction, the U axle is sense of rotation.Portal frame 410 as Y Z the support platform of U axle, motor shaft is played to the effect of firm and rising height.
And focus adjusting mechanism 411 utilizes the driven by motor synchronizing wheel, be fixed on the and then motion together of focusing handwheel on synchronizing wheel, as shown in Figure 6, described focus adjusting mechanism 411 comprises driving wheel 505, engaged wheel 504, belt 506, focusing motor 501, focusing wheel 502, focusing mount fixed head 508, focusing wheel holder 503, nutted rod 507.
Focusing mount fixed head 508 is the platforms that support whole focus adjusting mechanism, and focusing wheel holder 503 is for fixing focusing wheel 502 and be connected engaged wheel 504, and adopts bearing fit between focusing mount fixed head 508.Described focusing motor 501 is focusing wheel 502 power motors that rotatablely move, focusing motor 501 drives driving wheel 505 rotations, described driving wheel 505 coordinates belt 506 that the rotary power of focusing motor 501 is passed to engaged wheel 504, the holder 503 that focusing wheel 502 is housed is simultaneously fixing with engaged wheel 504, make engaged wheel 504, focusing wheel holder 503, focusing wheel 502 threes to rotate together, focusing wheel 502 is for controlling the rise and fall of focusing handwheel 212.Further be provided with nutted rod 507, for regulating belt 506 tension force, while making motor positive and inverse, the empty phenomenon of running of belt 506 do not occur.
Further, focusing driving wheel 505 adopts 1:1 to transmit ratio with engaged wheel 504, solves unit exception situation power-off restarting back focusing wheel 502 and likely returns less than the initial position problem.
As shown in Figure 7, described control panel 100 comprises computer switch 101, usb 1 02, display 103, master switch 104 and emergency stop switch 105.
Described computer switch 101 is for controlling the unlatching of computer separately of two stations; Described usb 1 02, for connecting USB device, facilitates program updates; Described display 103 is for showing the programmed decision result of focusing and the test of dirty bad point; Described master switch 104 is for opening and cut off all devices power supply except computer; Described emergency stop switch 105, for when program or unit exception occurring, is controlled the motor stalling of 4 axles.
The concrete testing process of the utility model can be referring to Fig. 8, and concrete operations are as described below:
Step 1: place respectively test products on frock mainboard 13, frock mainboard 23, after being fixed on the frock mainboard by module, press initiate key;
Step 2: the frock mainboard moves to the CCD position at first automatically, in this step, the CCD camera calculates the center of circle and the angle value of module group lens, data are returned to computer program, program compares the module group lens center of circle and angle-data and the known initial center of circle of focusing handwheel and angle respectively, calculate both differences separately, and utilize motor to go compensation this difference, finally realize the coupling of module group lens and focusing handwheel.By CCD, the module petal is carried out to feature identification, as identify NG, program warning " obtaining vision data makes mistakes ", the frock mainboard returns to enable position, as identify OK, CCD obtains module center and petal angle position, thereby the frock mainboard is compensated at Y-axis, U shaft position at the movement position of X-axis and the focusing first run, and the frock mainboard is highly detected the position motion from trend Laser simultaneously;
Step 3: the frock mainboard arrives Laser and highly detects position, and in this step, height sensor is measured self distance to the module group lens end face, according to different distance when module supplied materials (because camera lens not at sustained height), adjusts the distance that the Z axis motor descends.The Laser height sensor is measured its height value to the module end face, as measure NG(and fail recognition feature), the module position is motionless, program warning " highly going beyond the scope ", this time point confirmation, the frock mainboard returns to enable position, as measured OK, the height value recorded compensates focusing handwheel Z axis position, and the frock mainboard is from trend focusing position motion simultaneously;
Step 4: after the frock mainboard arrives the focusing position, the module direct motion is under the focusing handwheel through after position compensation, then in the groove of focusing handwheel decline insertion module group lens surrounding, (concrete insertion depth is because different module group lens are different, can be by the program parameter setting), after accurately inserting module, position compensation before the focusing handwheel basis focused, as the NG(no to scale scope of focusing), program display " defective ", this time point is confirmed, the frock mainboard returns to enable position, as measure OK, the frock mainboard is from the dirty bad point test position motion of trend,
Step 5: the focusing process completes, and after the frock mainboard arrives dirty bad point test position, is had or not dirty bad point test, as measure NG, the frock mainboard returns to enable position, program display " NG ", as measure OK, the frock mainboard returns to enable position, program display " OK ".
Step 6: the employee takes off product from the frock mainboard, according to test result, is placed into respectively corresponding position, is completed.
Step 7: repeating step 1～step 6, continue other products of test.
In step 4, after focusing handwheel is inserted into the camera lens groove, formally start the focusing action, the focus adjustment method of its application can be selected multiple focus adjustment method, at this, the fast automatic focusing that is based on angle of view variation principle of this equipment application, concrete steps are as described below:
At first step 1) is analyzed target image, and described target image is to meet the test chart that method requires, and at least two unique points are set on test chart;
Step 2) then calculate the out of focus distance of camera lens, calculate characteristics of image and the changing features rate of camera lens when focus of module, method of operating is:
Select a test camera module, adjust the initial distance of test camera module to test chart, make unique point in the coverage of test camera module, and will test the camera module and be manually adjusted to focal position, the initial length of the unique point distance that the vision facilities that Measure and test camera module connects shows;
To test the camera module moves a certain distance, make unique point still in the coverage of test camera module, the length of the unique point that measurement image equipment shows after apart from change, and calculating the linear change rate of the length of unique point distance with the lens moving distance, described rate of change is that the length after the unique point change deducts after initial length the ratio with mobile distance;
Step 3) calculates the distance that the camera lens of current module to be measured need to move to focus, camera module to be measured is placed on to test position, measure the unique point length of current camera module, and according to it to measuring distance, the step 2 of test chart) in initial distance, unique point initial length and rate of change, just can calculate the focal position of current camera module, then by controlling the mechanical part of focusing mechanism, by the camera lens rapid adjustment to focal position;
Step 4) also adopts the segmentation method for trimming to carry out accurate adjustment to camera lens, until the image definition of module reaches default standard, thereby realizes fast automatic focusing.
The automatic focusing apparatus of the high pixel module that the utility model provides has promoted testing efficiency, be 2.5～3 times of common test board, and " focusing position " light source of design shares, reduced and taken up room, " dirty bad point test position " light source is independent, reduces the light source area, reduces costs.Further improve product focus effect and dirty bad point test consistance.And simple to operation, automaticity is high.
Claims (10)
1. the automatic focusing apparatus of a high pixel module, it is characterized in that: comprise worktable frame and be arranged on control panel, the focusing test zone on worktable frame, described focusing test zone is provided with the focusing handwheel of focusing test station, focusing light source, dirty bad point light source, CCD camera lens, height sensor and adjustment focusing light source height, described focusing test station can realize the accurate positioning control to module by motor, and is provided with for regulating the focus adjusting mechanism of focusing handwheel.
2. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: the top of described worktable frame is provided with top cover, the first half is provided with two black glass side doors of opening, centre is provided with work top, described focusing test zone is positioned on work top, the front lower place of described work top is provided with keyboard support, and the surrounding of described worktable frame Lower Half is provided with the iron plate side door, and bottom is provided with the castor of mobile and fixed equipment.
3. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: described control panel is arranged on the top of focusing test zone, comprises computer switch, the USB interface for program updates, display, the master switch of opertaing device power supply and the emergency stop switch that equipment is suspended controlling the focusing test station and start.
4. the automatic focusing apparatus of high pixel module according to claim 1 is characterized in that: described focusing test zone is provided with two focusing test station, the corresponding dirty bad point light source of each focusing test station, and share the focusing light source.
5. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: described focusing test zone is provided with back up pad, for supporting CCD camera lens, height sensor and dirty bad point light source, described CCD camera lens compensates for center and the angle position to module and focusing handwheel, described height sensor is for measuring its height to the module end face, and the compensation focusing handwheel drops to the height of module.
6. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: the drive link that described focusing test zone is provided with the screw rod be connected with focusing handwheel, the bevel gear be connected with screw rod, is connected with bevel gear, described drive link is connected with the focusing light source, and described focusing handwheel is regulated the height of focusing light source by screw rod, bevel gear and drive link.
7. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: described focusing test zone is provided with for simulating the teleconverter of actual focusing from effect, and, for locating the guide shaft of focusing light source height, described guide shaft is fixed with runners.
8. the automatic focusing apparatus of high pixel module according to claim 1; it is characterized in that: described focusing test station comprises the tool fixture, XY translation stage, light barrier of test station mainboard, reset button, start button, origin switch, motor, tank chain, cover pressing mechanism, fixing PCI E frock, portal frame, the focus adjusting mechanism of firm motor shaft; described tank chain is for the protection of circuit; described cover pressing mechanism is for putting and compress module, and described XY translation stage is for the position all around of adjusting tool tool.
9. the automatic focusing apparatus of high pixel module according to claim 1, it is characterized in that: described focus adjusting mechanism comprises driving wheel, engaged wheel, belt, focusing motor, supports the focusing mount fixed head of whole focus adjusting mechanism and adopt the focusing of bearing fit to take turns holder with the focusing mount fixed head, described driving wheel is driven by the focusing motor, described engaged wheel is controlled by driving wheel by belt, and described focusing wheel holder is taken turns and is connected for fixing focusing engaged wheel.
10. the automatic focusing apparatus of high pixel module according to claim 9, it is characterized in that: described focus adjusting mechanism also comprises nutted rod, for regulating belt tension.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320427031.6U CN203385925U (en) | 2013-07-16 | 2013-07-16 | Automatic focusing device of high-pixel module group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320427031.6U CN203385925U (en) | 2013-07-16 | 2013-07-16 | Automatic focusing device of high-pixel module group |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499870A (en) * | 2013-07-16 | 2014-01-08 | 宁波舜宇光电信息有限公司 | Automatic focusing equipment of high-pixel module |
| CN105592307A (en) * | 2014-10-21 | 2016-05-18 | 宁波舜宇光电信息有限公司 | Automatic test apparatus and test method of image pickup module set |
| CN107707822A (en) * | 2017-09-30 | 2018-02-16 | 苏州凌创电子系统有限公司 | A kind of online camera module active focusing mechanism and method |
| CN107820073A (en) * | 2017-10-20 | 2018-03-20 | 苏州艾微视图像科技有限公司 | A kind of threaded camera automatic focusing mechanism |
| CN113758676A (en) * | 2020-06-04 | 2021-12-07 | 三赢科技（深圳）有限公司 | Optical element detection auxiliary device |
-
2013
- 2013-07-16 CN CN201320427031.6U patent/CN203385925U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499870A (en) * | 2013-07-16 | 2014-01-08 | 宁波舜宇光电信息有限公司 | Automatic focusing equipment of high-pixel module |
| CN103499870B (en) * | 2013-07-16 | 2015-09-30 | 宁波舜宇光电信息有限公司 | A kind of automatic focusing apparatus of high pixel module |
| CN105592307A (en) * | 2014-10-21 | 2016-05-18 | 宁波舜宇光电信息有限公司 | Automatic test apparatus and test method of image pickup module set |
| CN105592307B (en) * | 2014-10-21 | 2018-06-26 | 宁波舜宇光电信息有限公司 | The automatic test equipment and test method of a kind of camera module |
| CN107707822A (en) * | 2017-09-30 | 2018-02-16 | 苏州凌创电子系统有限公司 | A kind of online camera module active focusing mechanism and method |
| CN107707822B (en) * | 2017-09-30 | 2024-03-05 | 苏州凌创电子系统有限公司 | Online camera module active focusing equipment and method |
| CN107820073A (en) * | 2017-10-20 | 2018-03-20 | 苏州艾微视图像科技有限公司 | A kind of threaded camera automatic focusing mechanism |
| CN107820073B (en) * | 2017-10-20 | 2024-04-23 | 苏州艾微视图像科技有限公司 | Automatic focusing mechanism with threaded camera |
| CN113758676A (en) * | 2020-06-04 | 2021-12-07 | 三赢科技（深圳）有限公司 | Optical element detection auxiliary device |
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