CN105404090A - Lens focusing device and focusing method - Google Patents

Lens focusing device and focusing method Download PDF

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Publication number
CN105404090A
CN105404090A CN201510700637.6A CN201510700637A CN105404090A CN 105404090 A CN105404090 A CN 105404090A CN 201510700637 A CN201510700637 A CN 201510700637A CN 105404090 A CN105404090 A CN 105404090A
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China
Prior art keywords
focusing
camera lens
lens module
light source
upper left
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Granted
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CN201510700637.6A
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Chinese (zh)
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CN105404090B (en
Inventor
颜钊强
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Foshan Yiou Optronic Technology Co Ltd
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Foshan Yiou Optronic Technology Co Ltd
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B43/00—Testing correct operation of photographic apparatus or parts thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses a lens focusing device and a focusing method. A lens module group to be focused is placed on a focusing positioning device of a lens module group and the focusing positioning device of the lens module group automatically takes the lens module group to a focusing station so that focusing positioning accuracy of the lens module group is guaranteed. A plurality of multi-angle focusing light sources are set to be simultaneously entered into the lens module group so as to cooperate with a focusing control system to automatically complete focusing of the lens module group. After the focusing is completed, the focusing positioning device of the lens module group automatically takes the lens module group to return to an original position. A whole focusing process is fully-automatic and does not need manual participation. Manual operation differences are avoided. Consistency of lens module group focusing quality is guaranteed. The lens module group is guaranteed to reach optimum image quality during subsequent usage and a production requirement is satisfied.

Description

A kind of lens focusing device and focus adjustment method thereof
Technical field
The present invention relates to camera lens module focusing apparatus field, in particular a kind of lens focusing device and focus adjustment method thereof.
Background technology
For realizing the taking pictures of electronic installation, camera function, usually need to install a camera lens module in electronic installation.During assembling camera lens module, need first to carry out focusing operation to camera lens module, namely utilize focus control to finely tune the distance between the camera lens of camera lens module and photo-sensitive cell, the focusing plane of camera lens is aimed at the sensing face of photo-sensitive cell, to reach best image quality.
Now general lens focusing operation is all by manually completing, and manually holds alignment lens light source, completes focusing work by means of artificial naked eyes, and artificial focusing is wasted time and energy, and variance rate is large, has a strong impact on the image quality of the follow-up use of camera lens; Some focusing mechanism can replace the artificial lens focusing being less than 90 degree for field angle, but these equipment are not also suitable for the focusing of wide-angle lens, because the field angle scope of wide-angle lens is larger, these standard field of view angle mirror head focusing mechanisms can block the visual field of wide-angle lens in focussing process, the focusing lens of wide-angle can not be realized, can not request for utilization be met.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of lens focusing device and focus adjustment method thereof, be intended to solve existing artificial focusing waste time and energy, variance rate is large, affect lens focusing equipment that lens video quality and field angle be less than 90 degree and is not suitable for the problem that wide-angle lens focuses.
Technical scheme of the present invention is as follows:
A kind of lens focusing device, be applicable in the focusing operation of various camera lens module, wherein, comprise frame, for camera lens module being fixed and automatically camera lens module being taken to lens locator on focusing station, for the camera lens light supply apparatus that provides light source to coordinate camera lens module to carry out focusing and control system, described lens locator and camera lens light supply apparatus are all arranged in frame, and lens locator is all connected with control system with camera lens light supply apparatus; Lens locator is positioned at the back side of camera lens module minute surface in focussing process.
Described lens focusing device, wherein, described lens locator comprises supporting seat, be arranged on supporting seat and the camera lens module fixing base of the Mobile base moved forward and backward along supporting seat and fixed lens module, described supporting seat is provided with two guide rails parallel to each other, Mobile base is connected on two closed slides by the slide block being arranged on two ends, and Mobile base is connected along the mobile propulsion system that two closed slides are movable with driving Mobile base; The both sides of described camera lens module fixing base are provided with rotating shaft, Mobile base is provided with two back up pads, back up pad is provided with and turns hole, turn in hole and be provided with bearing seat, the rotating shaft of camera lens module fixing base both sides coordinates installation to make camera lens module fixing base be arranged on Mobile base respectively with the bearing seat in two back up pads, camera lens module fixing base realizes 90 ° of switching mechanisms overturn with drive camera lens module fixing base and is connected centered by rotating shaft; Described camera lens module fixing base is provided with the pcb board slot of placing pcb board, camera lens module fixing base is also provided with the fixing mechanism for lens of fixed lens module; Described mobile propulsion system are connected with control system.
Described lens focusing device, wherein, described switching mechanism comprises two upset lobe plates of the step inclined plane structure being arranged to arc transition and drives camera lens module fixing base to realize two flip-arms of 90 ° of upsets, described two upset lobe plates are vertically fixed on supporting seat, two flip-arms are separately positioned on the both sides of camera lens module fixing base, wherein a rotating shaft one end is fixedly installed on one of them flip-arm, the other end is arranged in the bearing seat in one of them back up pad, another rotating shaft one end is fixedly installed on another flip-arm, the other end is arranged in the bearing seat in another back up pad, one end of two flip-arms is fixedly connected on the both sides of camera lens module fixing base respectively, the other end is fixedly connected with a turning wheel, two flip-arms also overturn back-moving spring one end with one respectively and are connected, the upset back-moving spring other end is fixedly installed on Mobile base, and the turning wheel on two flip-arms slides or leaves two upset lobe plates in the process that Mobile base is movable on two upset lobe plates.
Described lens focusing device, wherein, described fixing mechanism for lens comprises two jig arm lobe plates of the ramp structure being arranged to arc transition and two jig arm for fixing to clamp camera lens module, described two jig arm lobe plates are horizontally set on supporting seat, the inclined-plane of two jig arm lobe plates is relative, described camera lens module fixing base is provided with jig arm slotted eye, and jig arm slotted eye is placed in the both sides of camera lens module fixed position; The middle part of two jig arm is hinged on camera lens module fixing base respectively, one end of two jig arm fixed clamp camera lens modules is placed in jig arm slotted eye, the other end of two jig arm connects a fixed block respectively, jig arm is also connected with clamping back-moving spring one end, the other end of clamping back-moving spring is fixed on camera lens module fixing base, and two fixed blocks move along two jig arm lobe plate inclined-planes or leave two jig arm lobe plates and two jig arm decontroled or clamping camera lens module.
Described lens focusing device, wherein, described lens locator also comprises focus regulating mechanism, described focus regulating mechanism comprises base, described base is provided with two shifting sledges parallel to each other, the bottom of supporting seat is provided with two sliding-rail slidings, and two sliding-rail slidings coordinate with two shifting sledges respectively to be installed; Base is also provided with active accommodation wheel and driven regulating wheel, is connected between described active accommodation wheel and driven regulating wheel by adjustment belt, active accommodation wheel is connected with motivation of adjustment device; Described motivation of adjustment device is connected with control system.
Described lens focusing device, wherein, described lens locator also comprises camera lens module automatic focusing mechanism, described camera lens module automatic focusing mechanism comprises the upper left clip wheel mechanism compressing camera lens module from left side, the upper right clip wheel mechanism compressing camera lens module from right side and the lower clip wheel mechanism from support camera lens module below, described upper left clip wheel mechanism and upper right clip wheel mechanism one the first from left right side are arranged on the side of supporting seat near focusing station, and upper left clip wheel mechanism is consistent with the structure of upper right clip wheel mechanism, described upper left clip wheel mechanism comprises the upper left lobe plate of the ramp structure being arranged to arc transition, upper left linking arm, upper left clip wheel swing arm, upper left clip wheel, upper left fixed head and be arranged to U-shaped upper left holder, described upper left clip wheel lobe plate is horizontally set on supporting seat, the inclined-plane of upper left clip wheel lobe plate is arranged towards the center line of supporting seat, upper left holder is fixedly installed on supporting seat, the U-shaped side that upper left holder two is protruding is provided with mounting hole, upper left fixed head is provided with upper left through hole and upper left dead eye, upper left connecting link is arranged in upper left mounting hole, on upper left connecting link, cover has back-moving spring, the upper left through hole of upper left fixed head makes upper left fixed head be arranged in upper left holder through upper left connecting link, in upper left dead eye, left bearing is installed, one end of upper left linking arm is fixedly connected with upper left rotary shaft one end, the upper left rotary shaft other end is fixedly connected with upper left clip wheel swing arm one end through upper left bearing, the other end of upper left linking arm connects left chain wheel on, upper left chain wheel slides along the inclined-plane of upper left clip wheel lobe plate, the other end of upper left clip wheel swing arm connects upper left clip wheel, upper left linking arm is also connected with upper left swing back-moving spring one end, the upper left swing back-moving spring other end is fixedly installed on supporting seat, the both sides of Mobile base are also respectively arranged with promotion bolt, promote bolt withstand in Mobile base moving process or leave upper left fixed head, described lower clip wheel mechanism comprises the lower lobe plate of the ramp structure being arranged to arc transition, lower linking arm, lower clip wheel swing arm, lower clip wheel, bottom plate, be arranged to U-shaped lower fixed seat and lower swing actuating unit, described lower clip wheel lobe plate is horizontally set on supporting seat, the inclined-plane of lower clip wheel lobe plate is arranged towards the center line of supporting seat, lower fixed seat is fixedly installed on supporting seat, the U-shaped side that lower fixed seat two is protruding is provided with lower mounting hole, bottom plate is provided with lower through-hole and lower bearing aperture, lower connecting rod is arranged in lower mounting hole, on lower connecting rod, cover has back-moving spring, the lower through-hole of bottom plate makes bottom plate be arranged in lower fixed seat through lower connecting rod, in lower bearing aperture, lower bearing is installed, one end of lower linking arm is fixedly connected with lower rotary shaft one end, the lower rotary shaft other end is fixedly connected with lower clip wheel swing arm one end through lower bearing, the other end of lower linking arm connects a lower sheave lower sheave and slides along the inclined-plane of lower clip wheel lobe plate, the other end of lower clip wheel swing arm connects lower clip wheel, lower linking arm is also connected with lower swing back-moving spring one end, the lower swing back-moving spring other end is fixedly installed on supporting seat, the both sides of Mobile base are also respectively arranged with promotion bolt, promote bolt withstand in Mobile base moving process or leave bottom plate, the engaged wheel that lower swing actuating unit comprises focusing motor, is arranged on the driving wheel on lower clip wheel swing arm and is coaxially connected with lower clip wheel, described focusing motor is connected with driving wheel, and driving wheel is connected by feed belt with engaged wheel, described focusing motor is connected with control system.
Described lens focusing device, wherein, described camera lens light supply apparatus comprises frame and is no less than a focusing light source mechanism, described focusing light source mechanism is arranged in frame, described focusing light source mechanism be positioned at camera lens module be the center of circle, on the focal length of the camera lens module hemisphere face that is radius, the light source of focusing light source mechanism enters camera lens module to realize focusing with different incidence angles; Described focusing light source mechanism is connected with control system.
Described lens focusing device, wherein, described focusing light source organization establishes 9,9 focusing light source mechanisms be positioned at camera lens module be the center of circle, on the focal length of the camera lens module hemisphere face that is radius, 9 focusing light source mechanisms comprise the first focusing light source mechanism, second focusing light source mechanism, 3rd focusing light source mechanism, 4th focusing light source mechanism, 5th focusing light source mechanism, 6th focusing light source mechanism, 7th focusing light source mechanism, 8th focusing light source mechanism and the 9th focusing light source mechanism, described first focusing light source mechanism, second focusing light source mechanism, 3rd focusing light source mechanism and the 4th focusing light source mechanism are positioned at camera lens module for the center of circle, camera lens module focal length is the circumferentially same of radius, the 5th focusing light source mechanism, 6th focusing light source mechanism, 7th focusing light source mechanism and the 8th focusing light source mechanism are positioned at and focus the joining of light source mechanism line for the center of circle with the 5th focusing light source mechanism and the 6th focusing light source mechanism line and the 7th light source mechanism and the 8th that focuses, the distance of the 5th focusing light source mechanism and joining is the circumferentially same of radius, described camera lens module, joining and the 9th focusing light source mechanism are located along the same line and camera lens module is equal to the distance of the 9th focusing light source mechanism to the Distance geometry joining of joining.
Described lens focusing device, wherein, described 9th focusing light source mechanism comprises the first light source base be fixedly installed in frame and the first light source be fixedly installed on the first light source base; Described 5th focusing light source mechanism, the 6th focusing light source mechanism, the 7th focusing light source mechanism and the 8th focusing light source mechanism structure consistent, comprise the secondary light source seat be fixedly installed in frame, the second mounting rod be fixedly installed on secondary light source seat, the secondary light source that is arranged on the second universal joint on the second mounting rod and is connected with the second universal joint, described second universal joint arranges two, and two the second universal joints are connected in series; Described first focusing light source mechanism, second focusing light source mechanism, the 3rd focusing light source mechanism and the 4th focusing light source mechanism structure consistent, comprise the 3rd light source base be fixedly installed in frame, the 3rd mounting rod be fixedly installed on the 3rd light source base, the expansion link be arranged on the 3rd mounting rod, the 3rd light source that is arranged on the 3rd universal joint on expansion link and is connected with the 3rd universal joint, described expansion link stretches along the 3rd mounting rod, 3rd universal joint arranges two, and two universal joints are connected in series; Described first light source, secondary light source are all connected with control system with the 3rd light source.
A lens focusing method for lens focusing device as described in above-mentioned any one, wherein, specifically comprises the following steps:
Step S100: set MTF standard value and focusing standard number on request;
Step S200: PCB is placed in lens locator, injected by the plug of camera lens module in the socket of pcb board, camera lens module focusing starts;
Step S300: control system controls lens locator and drives camera lens module to move on focusing station, and meanwhile, control system controls to start camera lens light supply apparatus;
Step S400: control system controls to open camera lens module MTF test pattern;
Step S500: control system reads the current mtf value of camera lens module;
Step S600: the control system mtf value current according to camera lens module calculates focusing step-length and focusing direction automatically;
Step S700: control system, according to the focusing step-length calculated and focusing direction controlling lens locator B00 action, drives camera lens module to focus;
Step S800: control system according to reading the mtf value of camera lens module after focusing again, and judges the mtf value that reads whether in the scope of MTF standard value, is perform step S811-step S813, no, performs step S821-step S825;
Step S811: control system controls to close camera lens module MTF test pattern;
Step S812: control system controls lens locator and drives the reposition of camera lens module;
Step S813: camera lens module is taken off from lens locator and is put into qualified storehouse.
Step S821: control system judges whether the number of times of camera lens module focusing is less than focusing standard number, is, performs step S822, no, performs step S823-step S825;
Step S822: repeated execution of steps S600;
Step S823: control system controls to close camera lens module MTF test pattern;
Step S824: control system controls lens locator and drives the reposition of camera lens module;
Step S825: camera lens module is taken off from lens locator and is put into Nonconforming Parts Area.
Beneficial effect of the present invention: the present invention is by providing a kind of lens focusing device and focus adjustment method thereof, treating that focusing lens module is placed on the focusing locating device of camera lens module, the focusing locating device of camera lens module will take camera lens module on focusing station to automatically, ensures the accuracy of camera lens module focusing location; Enter in camera lens module by arranging multiple multi-angle focusing light source simultaneously, focusing control system is coordinated automatically to complete the focusing of camera lens module, to focus the focusing locating device automatic traction camera lens module reposition of rear lens module, whole focussing process is full-automatic, without the need to artificial participation, avoid manually-operated otherness, be conducive to the consistance ensureing camera lens module focusing quality, ensure to meet production requirement by the image quality that the follow-up use of camera lens module can reach best.
Accompanying drawing explanation
Fig. 1 is the structural representation of lens focusing device in the present invention.
Fig. 2 is the structural representation of lens locator and camera lens light supply apparatus in the present invention.
Fig. 3 is structural representation Fig. 1 of lens locator in the present invention.
Fig. 4 is structural representation Fig. 2 of lens locator in the present invention.
Fig. 5 is structural representation Fig. 3 of lens locator in the present invention.
Fig. 6 is the structural representation of camera lens module fixing base in the present invention.
Fig. 7 is structural representation when two jig arm do not clamp camera lens module in the present invention.
Structural representation when Fig. 8 is two jig arm clamping camera lens modules in the present invention.
Fig. 9 is the structural representation of camera lens light supply apparatus in the present invention.
Figure 10 is the structural representation of the 9th focusing light source mechanism in the present invention.
Figure 11 is the structural representation of the 5th focusing light source mechanism in the present invention.
Figure 12 is the structural representation of the first focusing light source mechanism in the present invention.
Figure 13 is the flow chart of steps of the focus adjustment method of lens focusing device in the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.
As shown in Figure 1-2, this lens focusing device comprises frame A100, for camera lens module being fixed and automatically camera lens module being taken to lens locator B00 on focusing station, for the camera lens light supply apparatus C00 that provides light source to coordinate camera lens module to carry out focusing and control system, described lens locator and camera lens light supply apparatus are all arranged on frame A100, lens locator is all connected with control system with camera lens light supply apparatus, is controlled by control system.This lens focusing device is applicable in the focusing operation of various camera lens module, be particularly useful in the focusing operation of wide-angle (field angle is greater than 90 degree) camera lens module, because in camera lens module focusing process, lens locator is placed in the back side of camera lens module minute surface, the focusing of wide-angle lens module can not be blocked, meet focusing requirement.
As seen in figures 3-6, described lens locator B00 comprises the supporting seat B100 be arranged on frame A100, to be arranged on supporting seat B100 and the camera lens module fixing base B300 of the Mobile base B200 moved forward and backward along supporting seat B100 and fixed lens module, described supporting seat B100 is provided with two guide rail B110 parallel to each other, Mobile base B200 is connected on two closed slide B110 by the slide block being arranged on two ends, Mobile base B200 is connected with mobile propulsion system, under the drive of mobile propulsion system, Mobile base B200 moves forward and backward along two closed slide B110, described mobile propulsion system are connected with control system, the both sides of described camera lens module fixing base B300 are provided with rotating shaft B310, Mobile base B200 is provided with two back up pad B210, back up pad B210 is provided with and turns hole, turn in hole and be provided with bearing seat, the rotating shaft B310 of camera lens module fixing base B300 both sides coordinates with the bearing seat on two back up pad B210 respectively and installs, camera lens module fixing base B300 is made to be arranged on Mobile base B200, camera lens module fixing base B300 is connected with switching mechanism, is driven realize 90 ° of upsets by switching mechanism centered by rotating shaft B310, described camera lens module fixing base B300 is provided with the pcb board slot of placing pcb board, camera lens module fixing base B300 is also provided with the fixing mechanism for lens of fixed lens module: pcb board is placed in pcb board slot, the plug of camera lens module is injected in the socket of pcb board, under original state, pcb board is parallel with supporting seat B100, mobile propulsion system start, Mobile base B200 is driven to move along two closed slide B110 to focusing station direction, after arriving focusing station, mobile propulsion system cut out, Mobile base B200 stops mobile immediately, in the process of Mobile base B200 movement, fixing mechanism for lens fixed lens module, switching mechanism drives camera lens module fixing base B300 centered by rotating shaft B310, realize 90 ° of upsets, make pcb board vertical with supporting seat B100, realize the focusing plane correspondence focusing light source of camera lens module, facilitate follow-up focusing work, after having focused, mobile propulsion system start, and drive Mobile base B200 to move along two closed slide B110 to initial position direction, after arriving initial position, mobile propulsion system cut out, Mobile base B200 stops mobile immediately, and in the process of reposition, switching mechanism drives camera lens module fixing base B300 centered by rotating shaft B310, realize 90 ° of upsets and gets back to original position, fixing mechanism for lens decontrols camera lens module, camera lens module is waited for removed, and so far, whole focusing operation completes.
In the present embodiment, described mobile propulsion system adopt motor.Particularly, described supporting seat B100 is provided with two transmission supporting base B120, two transmission supporting base B120 are arranged side by side along guide rail B110 direction, one of them transmission supporting base B120 is provided with driving wheel, another one transmission supporting base B120 is provided with engaged wheel, connected by driving belt between described driving wheel and engaged wheel, driving wheel is connected with mobile propulsion system (i.e. motor), one of them slide block of Mobile base B200 is connected with the plate B220 that is in transmission connection, the plate B220 that is in transmission connection is connected with driving belt: electric motor starting, drive driving wheel rotates, driving belt is action thereupon, thus drive Mobile base B200 to move forward and backward along two closed slide B110.
In order to ensure Mobile base B200 two ends stress balance as far as possible in movable process, connected by slide attachment plate B230 between two slide blocks of described Mobile base B200, like this, a slide block acting force that while action, another slide block is moved forward and backward too under the drive of driving belt wherein.
In the present embodiment, described switching mechanism comprises two upset lobe plate B410 of the step inclined plane structure being arranged to arc transition and drives camera lens module fixing base B300 to realize two flip-arm B420 of 90 ° of upsets, described two upset lobe plate B410 are vertically fixed on supporting seat B100, two flip-arm B420 are separately positioned on the both sides of camera lens module fixing base B300, wherein a rotating shaft B310 one end is fixedly installed on one of them flip-arm B420, the other end is arranged in the bearing seat on one of them back up pad B210, another rotating shaft B310 one end is fixedly installed on another flip-arm B420, the other end is arranged in the bearing seat on another back up pad B210, one end of two flip-arm B420 is fixedly connected on the both sides of camera lens module fixing base B300 respectively, the other end is fixedly connected with a turning wheel B421, two flip-arm B420 also overturn back-moving spring one end with one respectively and are connected, the upset back-moving spring other end is fixedly installed on Mobile base B200, turning wheel B421 on two flip-arm B420 slides or leaves two upset lobe plate B410 in the process that Mobile base B200 is movable on two upset lobe plate B410: original state flip-arm B420 is perpendicular to supporting seat B100, drive Mobile base B200 in the process of focusing station direction movement at mobile propulsion system, after the turning wheel B421 on flip-arm B420 meets upset lobe plate B410, camera lens module fixing base B300 starts to realize upset, turning wheel B421 overturns the lower side of lobe plate B410 to a higher lateral movement along arc transition under mobile propulsion system effect drives, upset back-moving spring on flip-arm B420 is compressed, flip-arm B420 by turn to perpendicular to supporting seat B100 parallel with supporting seat B100, realize 90 ° of upsets, because camera lens module fixing base B300 is fixedly connected with flip-arm B420, therefore, camera lens module fixing base B300 follows flip-arm B420 simultaneously and realizes 90 ° of upsets, the camera lens module be fixed on camera lens module fixing base B300 is made also to realize 90 ° of upsets, follow-up camera lens module is facilitated to focus, after having focused, mobile propulsion system drive Mobile base B200 to move to direction, original position, turning wheel B421 overturns the higher side of lobe plate B410 to a lower lateral movement along arc transition under mobile propulsion system effect drives, upset back-moving spring on flip-arm B420 is slowly relaxed, flip-arm B420 by be parallel to supporting seat B100 and turn to vertical with supporting seat B100, realize 90 ° of upsets, camera lens module fixing base B300 follows flip-arm B420 simultaneously and realizes 90 ° of upsets, the camera lens module be fixed on camera lens module fixing base B300 also realizes 90 ° of upsets, follow Mobile base B200 reposition.
Particularly, described fixing mechanism for lens comprises two jig arm lobe plate B510 of the ramp structure being arranged to arc transition and two jig arm B520 for fixing to clamp camera lens module, described two jig arm lobe plate B510 are horizontally set on supporting seat B100, the inclined-plane of two jig arm lobe plate B510 is relative, described camera lens module fixing base B300 is provided with jig arm slotted eye B320, and jig arm slotted eye B320 is placed in the both sides of camera lens module fixed position, the middle part of two jig arm B520 is hinged on camera lens module fixing base B300 respectively, one end of two jig arm B520 fixed clamp camera lens modules is placed in jig arm slotted eye 320, the other end of two jig arm B520 connects a fixed block B521 respectively, jig arm B520 is also connected with clamping back-moving spring one end, the other end of clamping back-moving spring is fixed on camera lens module fixing base B300: the fixed block B521 of original state two jig arm B520 contacts with two jig arm lobe plate B510 respectively, two jig arm B520 be press against by two jig arm lobe plate B510 and form V-arrangement (as shown in Figure 7) wide at the top and narrow at the bottom, one end of two jig arm B520 fixed clamp camera lens modules does not contact with camera lens module, at this moment the clamping back-moving spring on two jig arm B520 is maximum by the amount compressed, drive Mobile base B200 in the process of focusing station direction movement at mobile propulsion system, clamping back-moving spring is reduced gradually by the amount compressed, two jig arm B520 are slowly close to camera lens module direction in jig arm slotted eye B320 under the drive of clamping back-moving spring, until clamping back-moving spring recovers, two jig arm B520 fixed clamp camera lens modules both sides (as shown in Figure 8), at this moment, camera lens module fixing base B300 realizes 90 ° of upsets under the drive of switching mechanism, fixed block B521 and two the jig arm lobe plate B510 of two jig arm B520 leaves, two jig arm B520 realize gripping to camera lens module under clamping action of reset spring, after focusing, mobile propulsion system drive Mobile base B200 to move to direction, original position, camera lens module fixing base B300 realizes 90 ° of upsets and gets back to original position under the drive of switching mechanism, the fixed block B521 of two jig arm B520 starts to contact with two jig arm lobe plate B510, slowly being changed from small to big by decrement of clamping back-moving spring, one end of two jig arm B520 fixed clamp camera lens modules is slowly away from camera lens module, latter two jig arm B520 be press against by two jig arm lobe plate B510 and forms V-arrangement wide at the top and narrow at the bottom, at this moment, two jig arm B520 no longer clamp camera lens module.
In order to make the automaticity of this lens locator higher, described supporting seat B100 is provided with and detects initial position travel switch B240 and the final position travel switch B250 that Mobile base B200 moves forward and backward position, described initial position travel switch B240 is connected with control system with final position travel switch B250: original state moves propulsion system and drives Mobile base B200 to move to focusing station direction, the trigger endpoint position travel switch B250 when Mobile base B200 moves to focusing station, mobile propulsion system cut out, and Mobile base B200 stops mobile; After focusing, mobile propulsion system drive Mobile base 200 to move to direction, original position, and trigger initial position travel switch B240 when Mobile base B200 moves to original position, mobile propulsion system cut out, and Mobile base B200 stops mobile.
Because field angle is larger, focal length is shorter, in order to the focusing making this lens locator be applicable to the camera lens module of different focal, this lens locator also comprises focus regulating mechanism, described focus regulating mechanism comprises base B610, described base B610 is provided with two shifting sledge B611 parallel to each other, the bottom of supporting seat B100 is provided with two sliding-rail sliding B130, and two sliding-rail sliding B130 coordinate with two shifting sledge B611 respectively and install; Base B610 is also provided with active accommodation wheel and driven regulating wheel, connected by adjustment belt between described active accommodation wheel and driven regulating wheel, active accommodation wheel is connected (in the present embodiment with motivation of adjustment device, described motivation of adjustment device adopts motor), supporting seat B100 is connected with adjustment belt by the contiguous block being arranged on bottom, described motivation of adjustment device is connected with control system: when needs adjustment different focal, motivation of adjustment device starts, and drives whole supporting seat B100 to move forward and backward to adjust different focal distance along moving guide rail B611.
Particularly, described base B610 is also provided with the position travel switch moving forward and backward position for detecting supporting seat B100, described position travel switch is connected with control system, thus controls the movable position of supporting seat B100.
Focusing light supply apparatus can be coordinated to realize automatic focusing to make this lens locator, this lens locator also comprises camera lens module automatic focusing mechanism, described camera lens module automatic focusing mechanism comprises the upper left clip wheel mechanism compressing camera lens module from left side, the upper right clip wheel mechanism compressing camera lens module from right side and the lower clip wheel mechanism from support camera lens module below, described upper left clip wheel mechanism and upper right clip wheel mechanism one the first from left right side are arranged on the side of supporting seat B100 near focusing station, and upper left clip wheel mechanism is consistent with the structure of upper right clip wheel mechanism, described upper left clip wheel mechanism comprises the upper left lobe plate B711 of the ramp structure being arranged to arc transition, upper left linking arm B712, upper left clip wheel swing arm B713, upper left clip wheel B714, upper left fixed head B715 and be arranged to U-shaped upper left holder B716, described upper left clip wheel lobe plate B710 is horizontally set on supporting seat B100, the inclined-plane of upper left clip wheel lobe plate B710 is arranged towards the center line of supporting seat B100, upper left holder B716 is fixedly installed on supporting seat B100, the U-shaped side that upper left holder B716 two is protruding is provided with mounting hole, upper left fixed head B715 is provided with upper left through hole and upper left dead eye, upper left connecting link is arranged in upper left mounting hole, on upper left connecting link, cover has back-moving spring, the upper left through hole of upper left fixed head B715 makes upper left fixed head B715 be arranged in upper left holder B716 through upper left connecting link, in upper left dead eye, left bearing is installed, one end of upper left linking arm B712 is fixedly connected with upper left rotary shaft one end, the upper left rotary shaft other end is fixedly connected with upper left clip wheel swing arm B713 one end through upper left bearing, the other end of upper left linking arm B712 connects left chain wheel on, upper left chain wheel slides along the inclined-plane of upper left clip wheel lobe plate B710, the other end of upper left clip wheel swing arm B713 connects upper left clip wheel B714, upper left linking arm B712 is also connected with upper left swing back-moving spring one end, the upper left swing back-moving spring other end is fixedly installed on supporting seat B100, the both sides of Mobile base B200 are also respectively arranged with promotion bolt, promote bolt and withstand or leave upper left fixed head B715 in Mobile base B200 moving process: original state, the upper right clip wheel of upper left clip wheel B714/ leaves camera lens module under the effect of the upper right clip wheel lobe plate of upper left clip wheel lobe plate B710/, at this moment upper left swing back-moving spring/upper right swing back-moving spring is compressed, drive Mobile base B200 in the process of focusing station direction movement at mobile propulsion system, when the promotion bolt on Mobile base B200 starts to withstand the upper right fixed head of upper left fixed head B715/, the upper right fixed head of upper left fixed head B715/ starts along with Mobile base B200 moves in the U-shaped structure of the upper right holder of upper left holder B716/, back-moving spring starts to reset, upper left chain wheel/upper right pulley starts the inclined-plane setting in motion along the upper right lobe plate of upper left lobe plate B711/, the upper right linking arm of upper left linking arm B712/ starts outwards to swing under the effect of upper left swing back-moving spring/upper right swing back-moving spring, the upper right clip wheel swing arm of upper left clip wheel swing arm B713/ then inwardly swings, the upper right clip wheel of upper left clip wheel B714/ is then close to camera lens module direction, until Mobile base B200 moves into place, the upper right clip wheel of upper left clip wheel B714/ compresses camera lens module from the left and right sides under the effect of upper left swing back-moving spring/upper right swing back-moving spring, after focusing, mobile propulsion system drive Mobile base B200 to move to direction, original position, upper left chain wheel/upper right pulley starts again to move along the inclined-plane of the upper right lobe plate of upper left lobe plate B711/, upper left swing back-moving spring/upper right swing back-moving spring starts to be compressed, the upper right linking arm of upper left linking arm B712/ starts inside swing, the upper right clip wheel swing arm of upper left clip wheel swing arm B713/ then outwards swings, the upper right clip wheel of upper left clip wheel B714/ then leaves camera lens module, until when the promotion bolt on Mobile base B200 no longer withstands the upper right fixed head of upper left fixed head B715/, the upper right clip wheel of upper left clip wheel B714/ leaves camera lens module completely, no longer camera lens module is clamped.
Described lower clip wheel mechanism comprises the lower lobe plate of the ramp structure being arranged to arc transition, lower linking arm, lower clip wheel swing arm B723, lower clip wheel B724, bottom plate, be arranged to U-shaped lower fixed seat and lower swing actuating unit, described lower clip wheel lobe plate is horizontally set on supporting seat B100, the inclined-plane of lower clip wheel lobe plate is arranged towards the center line of supporting seat, lower fixed seat is fixedly installed on supporting seat B100, the U-shaped side that lower fixed seat two is protruding is provided with lower mounting hole, bottom plate is provided with lower through-hole and lower bearing aperture, lower connecting rod is arranged in lower mounting hole, on lower connecting rod, cover has back-moving spring, the lower through-hole of bottom plate makes bottom plate be arranged in lower fixed seat through lower connecting rod, in lower bearing aperture, lower bearing is installed, one end of lower linking arm is fixedly connected with lower rotary shaft one end, the lower rotary shaft other end is fixedly connected with lower clip wheel swing arm one end through lower bearing, the other end of lower linking arm connects a lower sheave lower sheave and slides along the inclined-plane of lower clip wheel lobe plate, the other end of lower clip wheel swing arm connects lower clip wheel, lower linking arm is also connected with lower swing back-moving spring one end, the lower swing back-moving spring other end is fixedly installed on supporting seat, the both sides of Mobile base are also respectively arranged with promotion bolt, promote bolt withstand in Mobile base moving process or leave bottom plate, lower swing actuating unit comprises propulsion system (in the present embodiment, described power system adopts focusing motor), the engaged wheel being arranged on the driving wheel on lower clip wheel swing arm and being coaxially connected with lower clip wheel, described propulsion system are connected with driving wheel, driving wheel is connected by feed belt with engaged wheel, described propulsion system are connected with control system: when the promotion bolt on Mobile base B200 starts to withstand bottom plate, bottom plate starts along with Mobile base B200 moves in lower fixing U-shaped structure, lower swing back-moving spring starts to reset, lower sheave starts the inclined-plane setting in motion along lower lobe plate, lower linking arm starts inside swing, lower clip wheel swing arm then upwards swings, clip wheel is then close to camera lens module direction, until Mobile base B200 moves into place, lower clip wheel compresses camera lens module, after clamping camera lens module, start focusing, coordinate focusing light supply apparatus, focusing electric motor starting, drive driving wheel rotates, engaged wheel and lower clip wheel rotate thereupon, drive rotation of lens, the focusing plane of camera lens is aimed at the sensing face of photo-sensitive cell, after focusing, focusing motor cuts out, after having focused, mobile propulsion system start, Mobile base B200 is driven to move along two closed slide B110 to initial position direction, lower swing back-moving spring starts to be compressed simultaneously, lower sheave starts again to move along the inclined-plane of lower lobe plate, lower linking arm starts outside swing, lower clip wheel swing arm is then to lower swing, lower clip wheel then leaves camera lens module, until when the promotion bolt on Mobile base B200 no longer withstands bottom plate, lower clip wheel leaves camera lens module completely, no longer clamps camera lens module.
As shown in Figure 9, described camera lens light supply apparatus C00 comprises and is no less than a focusing light source mechanism, described focusing light source mechanism is arranged on frame A100, described focusing light source mechanism be positioned at camera lens module be the center of circle, on the focal length of the camera lens module hemisphere face that is radius, the light source of focusing light source mechanism enters camera lens module to realize focusing with different incidence angles; Described focusing light source mechanism is connected with control system.
The quantity of described focusing light source organization establishes does not limit, and principle is that quantity is more, and the precision of camera lens module focusing is higher; But the focusing light source mechanism quantity of setting is more, focusing cost is also relatively higher.When the quantity of the light source organization establishes of focusing is one, just only have the light source of a branch of single angle to enter in camera lens module at every turn, need the angle repeatedly adjusting focusing light source mechanism, with make different angles light source enter in camera lens module and detect.
In order to ensure focusing accuracy and reduce focusing cost, in the present embodiment, described focusing light source organization establishes 9, 9 focusing light source mechanisms are positioned at camera lens module for the center of circle, the focal length of camera lens module is on the hemisphere face of radius, comprise the first focusing light source mechanism C110, second focusing light source mechanism C120, 3rd focusing light source mechanism C130, 4th focusing light source mechanism C140, 5th focusing light source mechanism C150, 6th focusing light source mechanism C160, 7th focusing light source mechanism C170, 8th focusing light source mechanism C180 and the 9th focusing light source mechanism C190, described first focusing light source mechanism C110, second focusing light source mechanism C120, 3rd focusing light source mechanism C130 and the 4th focusing light source mechanism C140 is positioned at camera lens module for the center of circle, camera lens module focal length is the circumferentially same of radius, the line and the 7th of the 5th focusing light source mechanism C150 and the 6th focusing light source mechanism C160 the focus line of light source mechanism C180 of light source mechanism C170 and the 8th of focusing intersects at a S, 5th focusing light source mechanism C150, 6th focusing light source mechanism C160, 7th focusing light source mechanism C170 and the 8th focusing light source mechanism C180 is positioned at a S for the center of circle, point S is the circumferentially same of radius to the distance of the 5th focusing light source mechanism C150/ the 6th focusing light source mechanism C160/ the 7th focusing light source mechanism C170/ the 8th focusing light source mechanism C180, described camera lens module, point S and the 9th focusing light source mechanism C190 is located along the same line and camera lens module is equal to the distance of the 9th focusing light source mechanism C190 to the Distance geometry point S of some S.
As shown in Figure 10, described 9th focusing light source mechanism C190 comprises the first light source base C191 be fixedly installed on frame A100 and the first light source C192 be fixedly installed on the first light source base C191, as shown in figure 11, described 5th focusing light source mechanism C150, the 6th focusing light source mechanism C160, the 7th focusing light source mechanism C170 are consistent with the structure of the 8th focusing light source mechanism C180, the secondary light source C153 comprising the secondary light source seat C151 be fixedly installed on frame A100, the second mounting rod C152 be fixedly installed on secondary light source seat C151, be arranged on the second universal joint C153 on the second mounting rod C152 and be connected with the second universal joint C153, described second universal joint C153 arranges two, and two the second universal joint C153 are connected in series, as shown in figure 12, described first focusing light source mechanism C110, second focusing light source mechanism C120, 3rd focusing light source mechanism C130 is consistent with the structure of the 4th focusing light source mechanism C140, comprise the 3rd light source base C111 be fixedly installed in frame, be fixedly installed on the 3rd mounting rod C112 on the 3rd light source base C111, be arranged on the expansion link C113 on the 3rd mounting rod C112, the 3rd light source C115 being arranged on the 3rd universal joint C114 on expansion link C113 and being connected with the 3rd universal joint C114, described expansion link C113 stretches along the 3rd mounting rod C112, 3rd universal joint C114 arranges two, two universal joint C154 are connected in series, described first light source C192, secondary light source C153 are connected with control system with the 3rd light source C115: arrange two universal joints and be connected in series, and light source can be made to enter in camera lens module with various incident angle, adopt Telescopic rod structure to be conducive to according to Focussing light source to camera lens module between distance, meet the focusing requirement of camera lens module.
Before starting focusing, (in the present embodiment, the quantity of focusing light source mechanism arranges 9, is respectively above-mentioned first focusing light source mechanism C110 first to require to arrange the position of the quantity of focusing light source mechanism and each focusing light source mechanism of setting according to focusing accuracy, second focusing light source mechanism C120, 3rd focusing light source mechanism C130, 4th focusing light source mechanism C140, 5th focusing light source mechanism C150, 6th focusing light source mechanism C160, 7th focusing light source mechanism C170, 8th focusing light source mechanism C180 and the 9th focusing light source mechanism C190), according to Focussing focusing light source mechanism light source to camera lens module distance (first focus light source mechanism C110, second focusing light source mechanism C120, 3rd focusing light source mechanism C130 and the 4th focusing light source mechanism C140 by adjustable telescopic rod thus the source of adjustment to the distance of camera lens module), according to the position adjustment light source of focusing light source mechanism, to the incident angle of camera lens module, (first focuses light source mechanism C110, second focusing light source mechanism C120, 3rd focusing light source mechanism C130, 4th focusing light source mechanism C140, 5th focusing light source mechanism C150, 6th focusing light source mechanism C160, 7th focusing light source mechanism C170 and the 8th focusing light source mechanism C180 is by regulating the direction of universal joint thus regulating light source to the incident angle of camera lens module).
In order to ensure that the environment in lens focusing device is in vacuum environment, the top of described frame A100 is provided with the equipment of purifying air, described in purify air equipment and control system connect, be blown in lens focusing device elite control.
Conveniently lens focusing device transport, the bottom of described frame A100 is provided with transport pulley.
As shown in figure 13, a kind of lens focusing method of lens focusing device as described above, specifically comprises the following steps:
Step S100: set MTF standard value and focusing standard number on request;
Step S200: PCB is placed in lens locator B00, injected by the plug of camera lens module in the socket of pcb board, camera lens module focusing starts;
Step S300: control system controls lens locator B00 and drives camera lens module to move on focusing station, and meanwhile, control system controls to start camera lens light supply apparatus C00;
Step S400: control system controls to open camera lens module MTF test pattern;
Step S500: control system reads the current mtf value of camera lens module;
Step S600: the control system mtf value current according to camera lens module calculates focusing step-length and focusing direction automatically;
Step S700: control system, according to the focusing step-length calculated and focusing direction controlling lens locator B00 action, drives camera lens module to focus;
Step S800: control system according to reading the mtf value of camera lens module after focusing again, and judges the mtf value that reads whether in the scope of MTF standard value, is perform step S811-step S813, no, performs step S821-step S825;
Step S811: control system controls to close camera lens module MTF test pattern;
Step S812: control system controls lens locator B00 and drives the reposition of camera lens module;
Step S813: camera lens module is taken off from lens locator B00 and is put into qualified storehouse.
Step S821: control system judges whether the number of times of camera lens module focusing is less than focusing standard number, is, performs step S822, no, performs step S823-step S825;
Step S822: repeated execution of steps S600;
Step S823: control system controls to close camera lens module MTF test pattern;
Step S824: control system controls lens locator B00 and drives the reposition of camera lens module;
Step S825: camera lens module is taken off from lens locator B00 and is put into Nonconforming Parts Area.
Particularly, influential system MTF algorithm realization is utilized to measure the focusing of camera lens module.Camera lens MTF (ModulationTransferFunction, modulation transfer function) is the quantitation curve of the image quality of display camera lens under each aperture, and camera lens MTF mainly measures contrast and the resolution of camera lens module.
The workflow of this lens focusing device is as follows: pcb board is placed in pcb board slot, the plug of camera lens module is injected in the socket of pcb board, when needs adjustment different focal, motivation of adjustment device starts, and drives whole supporting seat B100 to move forward and backward to adjust different focal distance along moving guide rail B611, first require to arrange the quantity of focusing light source mechanism and the position of each focusing light source mechanism of setting according to focusing accuracy, according to the light source of Focussing focusing light source mechanism to the distance of camera lens module, adjust the incident angle of light source to camera lens module according to the position of focusing light source mechanism, under original state, pcb board is parallel with supporting seat B100, mobile propulsion system start, Mobile base B200 is driven to move along two closed slide B110 to focusing station direction, after the turning wheel B421 on flip-arm B420 meets upset lobe plate B410, camera lens module fixing base B300 starts to realize upset, turning wheel B421 overturns the lower side of lobe plate B410 to a higher lateral movement along arc transition under mobile propulsion system effect drives, upset back-moving spring on flip-arm B420 is compressed, flip-arm B420 by turn to perpendicular to supporting seat B100 parallel with supporting seat B100, realize 90 ° of upsets, because camera lens module fixing base B300 is fixedly connected with flip-arm B420, therefore, camera lens module fixing base B300 follows flip-arm B420 simultaneously and realizes 90 ° of upsets, the camera lens module be fixed on camera lens module fixing base B300 is made also to realize 90 ° of upsets, simultaneously, clamping back-moving spring is reduced gradually by the amount compressed, two jig arm B520 are slowly close to camera lens module direction in jig arm slotted eye B320 under the drive of clamping back-moving spring, until clamping back-moving spring recovers, two jig arm B520 fixed clamp camera lens module both sides, leave at fixed block B521 and two the jig arm lobe plate B510 of camera lens module fixing base B300 two jig arm B520 when realizing 90 ° of upsets, two jig arm B520 realize gripping to camera lens module under clamping action of reset spring, when the promotion bolt on Mobile base B200 starts to withstand the upper right fixed head/bottom plate of upper left fixed head B715/, upper right fixed head/the bottom plate of upper left fixed head B715/ starts along with Mobile base B200 moves in the upper right holder of upper left holder B716//lower fixing U-shaped structure, the back-moving spring of upper left clip wheel mechanism and upper right clip wheel mechanism starts to reset, the back-moving spring of lower clip wheel mechanism starts to be compressed, upper left chain wheel/upper right pulley/lower sheave starts the inclined-plane setting in motion along upper left lobe plate B711/ upper right lobe plate/lower lobe plate, the upper right linking arm of upper left linking arm B712/ starts outwards to swing under the effect of upper left swing back-moving spring/upper right swing back-moving spring, lower linking arm starts inside swing, the upper right clip wheel swing arm of upper left clip wheel swing arm B713/ then inwardly swings, lower clip wheel swing arm then upwards swings, upper left clip wheel B714/ upper right clip wheel/lower clip wheel is then close to camera lens module direction, until Mobile base B200 moves into place, upper left clip wheel B714/ upper right clip wheel/lower clip wheel is from a left side, right, lower side compression camera lens module, after clamping camera lens module, start focusing, coordinate focusing light supply apparatus, focusing electric motor starting, drive driving wheel rotates, engaged wheel and lower clip wheel rotate thereupon, drive rotation of lens, the focusing plane of camera lens is aimed at the sensing face of photo-sensitive cell, after focusing, focusing motor cuts out, after having focused, mobile propulsion system start, Mobile base B200 is driven to move along two closed slide B110 to initial position direction, the back-moving spring of upper left clip wheel mechanism and upper right clip wheel mechanism starts to be compressed simultaneously, the back-moving spring of lower clip wheel mechanism starts to reset, upper left chain wheel/upper right pulley/under the inclined-plane started again along upper left lobe plate B711/ upper right lobe plate/lower lobe plate move, the upper right linking arm of upper left linking arm B712/ starts inside swing, lower linking arm starts outside swing, the upper right clip wheel swing arm of upper left clip wheel swing arm B713/ then outwards swings, lower clip wheel swing arm then inwardly swings, upper left clip wheel B714/ upper right clip wheel/lower clip wheel then leaves camera lens module, until when the promotion bolt on Mobile base B200 no longer withstands the upper right fixed head/bottom plate of upper left fixed head B715/, upper left clip wheel B714/ upper right clip wheel/lower clip wheel leaves camera lens module completely, no longer camera lens module is clamped, turning wheel B421 overturns the higher side of lobe plate B410 to a lower lateral movement along arc transition under mobile propulsion system effect drives, upset back-moving spring on flip-arm B420 is slowly relaxed, flip-arm B420 by be parallel to supporting seat B100 and turn to vertical with supporting seat B100, realize 90 ° of upsets, camera lens module fixing base B300 follows flip-arm B420 simultaneously and realizes 90 ° of upsets, and the camera lens module be fixed on camera lens module fixing base B300 also realizes 90 ° of upsets, the fixed block B521 of two jig arm B520 starts to contact with two jig arm lobe plate B510, slowly being changed from small to big by decrement of clamping back-moving spring, one end of two jig arm B520 fixed clamp camera lens modules is slowly away from camera lens module, latter two jig arm B520 be press against by two jig arm lobe plate B510 and forms V-arrangement wide at the top and narrow at the bottom, at this moment, two jig arm B520 no longer clamp camera lens module, after Mobile base B200 arrives initial position, mobile propulsion system cut out, and Mobile base B200 stops mobile immediately, and so far, whole focusing operation completes.
This lens focusing device passes through treating that focusing lens module is placed on the focusing locating device of camera lens module, and the focusing locating device of camera lens module will take camera lens module on focusing station to automatically, ensures the accuracy of camera lens module focusing location; Enter in camera lens module by arranging multiple multi-angle focusing light source simultaneously, focusing control system is coordinated automatically to complete the focusing of camera lens module, to focus the focusing locating device automatic traction camera lens module reposition of rear lens module, whole focussing process is full-automatic, without the need to artificial participation, avoid manually-operated otherness, be conducive to the consistance ensureing camera lens module focusing quality, ensure to meet production requirement by the image quality that the follow-up use of camera lens module can reach best.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (10)

1. a lens focusing device, be applicable in the focusing operation of various camera lens module, it is characterized in that, comprise frame, for camera lens module being fixed and automatically camera lens module being taken to lens locator on focusing station, for the camera lens light supply apparatus that provides light source to coordinate camera lens module to carry out focusing and control system, described lens locator and camera lens light supply apparatus are all arranged in frame, and lens locator is all connected with control system with camera lens light supply apparatus; Lens locator is positioned at the back side of camera lens module minute surface in focussing process.
2. lens focusing device according to claim 1, it is characterized in that, described lens locator comprises supporting seat, be arranged on supporting seat and the camera lens module fixing base of the Mobile base moved forward and backward along supporting seat and fixed lens module, described supporting seat is provided with two guide rails parallel to each other, Mobile base is connected on two closed slides by the slide block being arranged on two ends, and Mobile base is connected along the mobile propulsion system that two closed slides are movable with driving Mobile base; The both sides of described camera lens module fixing base are provided with rotating shaft, Mobile base is provided with two back up pads, back up pad is provided with and turns hole, turn in hole and be provided with bearing seat, the rotating shaft of camera lens module fixing base both sides coordinates installation to make camera lens module fixing base be arranged on Mobile base respectively with the bearing seat in two back up pads, camera lens module fixing base realizes 90 ° of switching mechanisms overturn with drive camera lens module fixing base and is connected centered by rotating shaft; Described camera lens module fixing base is provided with the pcb board slot of placing pcb board, camera lens module fixing base is also provided with the fixing mechanism for lens of fixed lens module; Described mobile propulsion system are connected with control system.
3. lens focusing device according to claim 2, it is characterized in that, described switching mechanism comprises two upset lobe plates of the step inclined plane structure being arranged to arc transition and drives camera lens module fixing base to realize two flip-arms of 90 ° of upsets, described two upset lobe plates are vertically fixed on supporting seat, two flip-arms are separately positioned on the both sides of camera lens module fixing base, wherein a rotating shaft one end is fixedly installed on one of them flip-arm, the other end is arranged in the bearing seat in one of them back up pad, another rotating shaft one end is fixedly installed on another flip-arm, the other end is arranged in the bearing seat in another back up pad, one end of two flip-arms is fixedly connected on the both sides of camera lens module fixing base respectively, the other end is fixedly connected with a turning wheel, two flip-arms also overturn back-moving spring one end with one respectively and are connected, the upset back-moving spring other end is fixedly installed on Mobile base, and the turning wheel on two flip-arms slides or leaves two upset lobe plates in the process that Mobile base is movable on two upset lobe plates.
4. lens focusing device according to claim 2, it is characterized in that, described fixing mechanism for lens comprises two jig arm lobe plates of the ramp structure being arranged to arc transition and two jig arm for fixing to clamp camera lens module, described two jig arm lobe plates are horizontally set on supporting seat, the inclined-plane of two jig arm lobe plates is relative, described camera lens module fixing base is provided with jig arm slotted eye, and jig arm slotted eye is placed in the both sides of camera lens module fixed position; The middle part of two jig arm is hinged on camera lens module fixing base respectively, one end of two jig arm fixed clamp camera lens modules is placed in jig arm slotted eye, the other end of two jig arm connects a fixed block respectively, jig arm is also connected with clamping back-moving spring one end, the other end of clamping back-moving spring is fixed on camera lens module fixing base, and two fixed blocks move along two jig arm lobe plate inclined-planes or leave two jig arm lobe plates and two jig arm decontroled or clamping camera lens module.
5. lens focusing device according to claim 2, it is characterized in that, described lens locator also comprises focus regulating mechanism, described focus regulating mechanism comprises base, described base is provided with two shifting sledges parallel to each other, the bottom of supporting seat is provided with two sliding-rail slidings, and two sliding-rail slidings coordinate with two shifting sledges respectively to be installed; Base is also provided with active accommodation wheel and driven regulating wheel, is connected between described active accommodation wheel and driven regulating wheel by adjustment belt, active accommodation wheel is connected with motivation of adjustment device; Described motivation of adjustment device is connected with control system.
6. lens focusing device according to claim 2, it is characterized in that, described lens locator also comprises camera lens module automatic focusing mechanism, described camera lens module automatic focusing mechanism comprises the upper left clip wheel mechanism compressing camera lens module from left side, the upper right clip wheel mechanism compressing camera lens module from right side and the lower clip wheel mechanism from support camera lens module below, described upper left clip wheel mechanism and upper right clip wheel mechanism one the first from left right side are arranged on the side of supporting seat near focusing station, and upper left clip wheel mechanism is consistent with the structure of upper right clip wheel mechanism, described upper left clip wheel mechanism comprises the upper left lobe plate of the ramp structure being arranged to arc transition, upper left linking arm, upper left clip wheel swing arm, upper left clip wheel, upper left fixed head and be arranged to U-shaped upper left holder, described upper left clip wheel lobe plate is horizontally set on supporting seat, the inclined-plane of upper left clip wheel lobe plate is arranged towards the center line of supporting seat, upper left holder is fixedly installed on supporting seat, the U-shaped side that upper left holder two is protruding is provided with mounting hole, upper left fixed head is provided with upper left through hole and upper left dead eye, upper left connecting link is arranged in upper left mounting hole, on upper left connecting link, cover has back-moving spring, the upper left through hole of upper left fixed head makes upper left fixed head be arranged in upper left holder through upper left connecting link, in upper left dead eye, left bearing is installed, one end of upper left linking arm is fixedly connected with upper left rotary shaft one end, the upper left rotary shaft other end is fixedly connected with upper left clip wheel swing arm one end through upper left bearing, the other end of upper left linking arm connects left chain wheel on, upper left chain wheel slides along the inclined-plane of upper left clip wheel lobe plate, the other end of upper left clip wheel swing arm connects upper left clip wheel, upper left linking arm is also connected with upper left swing back-moving spring one end, the upper left swing back-moving spring other end is fixedly installed on supporting seat, the both sides of Mobile base are also respectively arranged with promotion bolt, promote bolt withstand in Mobile base moving process or leave upper left fixed head, described lower clip wheel mechanism comprises the lower lobe plate of the ramp structure being arranged to arc transition, lower linking arm, lower clip wheel swing arm, lower clip wheel, bottom plate, be arranged to U-shaped lower fixed seat and lower swing actuating unit, described lower clip wheel lobe plate is horizontally set on supporting seat, the inclined-plane of lower clip wheel lobe plate is arranged towards the center line of supporting seat, lower fixed seat is fixedly installed on supporting seat, the U-shaped side that lower fixed seat two is protruding is provided with lower mounting hole, bottom plate is provided with lower through-hole and lower bearing aperture, lower connecting rod is arranged in lower mounting hole, on lower connecting rod, cover has back-moving spring, the lower through-hole of bottom plate makes bottom plate be arranged in lower fixed seat through lower connecting rod, in lower bearing aperture, lower bearing is installed, one end of lower linking arm is fixedly connected with lower rotary shaft one end, the lower rotary shaft other end is fixedly connected with lower clip wheel swing arm one end through lower bearing, the other end of lower linking arm connects a lower sheave lower sheave and slides along the inclined-plane of lower clip wheel lobe plate, the other end of lower clip wheel swing arm connects lower clip wheel, lower linking arm is also connected with lower swing back-moving spring one end, the lower swing back-moving spring other end is fixedly installed on supporting seat, the both sides of Mobile base are also respectively arranged with promotion bolt, promote bolt withstand in Mobile base moving process or leave bottom plate, the engaged wheel that lower swing actuating unit comprises focusing motor, is arranged on the driving wheel on lower clip wheel swing arm and is coaxially connected with lower clip wheel, described focusing motor is connected with driving wheel, and driving wheel is connected by feed belt with engaged wheel, described focusing motor is connected with control system.
7. lens focusing device according to claim 1, it is characterized in that, described camera lens light supply apparatus comprises frame and is no less than a focusing light source mechanism, described focusing light source mechanism is arranged in frame, described focusing light source mechanism be positioned at camera lens module be the center of circle, on the focal length of the camera lens module hemisphere face that is radius, the light source of focusing light source mechanism enters camera lens module to realize focusing with different incidence angles; Described focusing light source mechanism is connected with control system.
8. lens focusing device according to claim 7, is characterized in that, described focusing light source organization establishes 9,9 focusing light source mechanisms be positioned at camera lens module be the center of circle, on the focal length of the camera lens module hemisphere face that is radius, 9 focusing light source mechanisms comprise the first focusing light source mechanism, second focusing light source mechanism, 3rd focusing light source mechanism, 4th focusing light source mechanism, 5th focusing light source mechanism, 6th focusing light source mechanism, 7th focusing light source mechanism, 8th focusing light source mechanism and the 9th focusing light source mechanism, described first focusing light source mechanism, second focusing light source mechanism, 3rd focusing light source mechanism and the 4th focusing light source mechanism are positioned at camera lens module for the center of circle, camera lens module focal length is the circumferentially same of radius, the 5th focusing light source mechanism, 6th focusing light source mechanism, 7th focusing light source mechanism and the 8th focusing light source mechanism are positioned at and focus the joining of light source mechanism line for the center of circle with the 5th focusing light source mechanism and the 6th focusing light source mechanism line and the 7th light source mechanism and the 8th that focuses, the distance of the 5th focusing light source mechanism and joining is the circumferentially same of radius, described camera lens module, joining and the 9th focusing light source mechanism are located along the same line and camera lens module is equal to the distance of the 9th focusing light source mechanism to the Distance geometry joining of joining.
9. lens focusing device according to claim 8, is characterized in that, described 9th focusing light source mechanism comprises the first light source base be fixedly installed in frame and the first light source be fixedly installed on the first light source base; Described 5th focusing light source mechanism, the 6th focusing light source mechanism, the 7th focusing light source mechanism and the 8th focusing light source mechanism structure consistent, comprise the secondary light source seat be fixedly installed in frame, the second mounting rod be fixedly installed on secondary light source seat, the secondary light source that is arranged on the second universal joint on the second mounting rod and is connected with the second universal joint, described second universal joint arranges two, and two the second universal joints are connected in series; Described first focusing light source mechanism, second focusing light source mechanism, the 3rd focusing light source mechanism and the 4th focusing light source mechanism structure consistent, comprise the 3rd light source base be fixedly installed in frame, the 3rd mounting rod be fixedly installed on the 3rd light source base, the expansion link be arranged on the 3rd mounting rod, the 3rd light source that is arranged on the 3rd universal joint on expansion link and is connected with the 3rd universal joint, described expansion link stretches along the 3rd mounting rod, 3rd universal joint arranges two, and two universal joints are connected in series; Described first light source, secondary light source are all connected with control system with the 3rd light source.
10. a lens focusing method for the lens focusing device as described in claim 1-9 any one, is characterized in that, specifically comprise the following steps:
Step S100: set MTF standard value and focusing standard number on request;
Step S200: PCB is placed in lens locator, injected by the plug of camera lens module in the socket of pcb board, camera lens module focusing starts;
Step S300: control system controls lens locator and drives camera lens module to move on focusing station, and meanwhile, control system controls to start camera lens light supply apparatus;
Step S400: control system controls to open camera lens module MTF test pattern;
Step S500: control system reads the current mtf value of camera lens module;
Step S600: the control system mtf value current according to camera lens module calculates focusing step-length and focusing direction automatically;
Step S700: control system, according to the focusing step-length calculated and focusing direction controlling lens locator B00 action, drives camera lens module to focus;
Step S800: control system according to reading the mtf value of camera lens module after focusing again, and judges the mtf value that reads whether in the scope of MTF standard value, is perform step S811-step S813, no, performs step S821-step S825;
Step S811: control system controls to close camera lens module MTF test pattern;
Step S812: control system controls lens locator and drives the reposition of camera lens module;
Step S813: camera lens module is taken off from lens locator and is put into qualified storehouse.
Step S821: control system judges whether the number of times of camera lens module focusing is less than focusing standard number, is, performs step S822, no, performs step S823-step S825;
Step S822: repeated execution of steps S600;
Step S823: control system controls to close camera lens module MTF test pattern;
Step S824: control system controls lens locator and drives the reposition of camera lens module;
Step S825: camera lens module is taken off from lens locator and is put into Nonconforming Parts Area.
CN201510700637.6A 2015-10-22 2015-10-22 A kind of lens focusing device and its focus adjustment method Active CN105404090B (en)

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CN112367442A (en) * 2020-10-29 2021-02-12 维沃移动通信有限公司 Camera lens assembly and electronic equipment
CN115113475A (en) * 2022-05-23 2022-09-27 深圳市新四季信息技术有限公司 Rotating adjusting equipment for focusing machine

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CN201489265U (en) * 2009-08-19 2010-05-26 东莞东聚电子电讯制品有限公司 Automatic lens focusing device
CN201540452U (en) * 2009-10-21 2010-08-04 东莞东聚电子电讯制品有限公司 One-stop lens focusing detection device
CN201548735U (en) * 2009-11-11 2010-08-11 厦门欣汉电脑有限公司 Camera lens automatic focusing module structure
CN205080362U (en) * 2015-10-22 2016-03-09 佛山市亿欧光电科技有限公司 Lens focusing device

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CN201489265U (en) * 2009-08-19 2010-05-26 东莞东聚电子电讯制品有限公司 Automatic lens focusing device
CN201540452U (en) * 2009-10-21 2010-08-04 东莞东聚电子电讯制品有限公司 One-stop lens focusing detection device
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CN112367442A (en) * 2020-10-29 2021-02-12 维沃移动通信有限公司 Camera lens assembly and electronic equipment
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CN115113475A (en) * 2022-05-23 2022-09-27 深圳市新四季信息技术有限公司 Rotating adjusting equipment for focusing machine
CN115113475B (en) * 2022-05-23 2024-05-10 深圳市新四季信息技术有限公司 Rotation adjusting device for focusing machine

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