CN108803070A - Assemble devices and methods therefor - Google Patents
Assemble devices and methods therefor Download PDFInfo
- Publication number
- CN108803070A CN108803070A CN201710572914.9A CN201710572914A CN108803070A CN 108803070 A CN108803070 A CN 108803070A CN 201710572914 A CN201710572914 A CN 201710572914A CN 108803070 A CN108803070 A CN 108803070A
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- China
- Prior art keywords
- lens
- eyelid retractor
- cylinder
- lens barrel
- assembly device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
Assembly device for assembling optical module, which has, to be actuated to move up and down, so that by the cylinder eyelid retractor in lens arrangement to cylinder, the power in different stages is applied on a supporting rack.Can be the mobile phone with camera or other components furthermore, it is possible to collect test image with further adjusting cylinder and eyelid retractor.
Description
Technical field
The present invention relates to a kind of assembly devices and methods therefors, more particularly relate to the assembly device of assembly optical component
And method.
Background technology
When camera appears on various electronic equipments, the optical element for accurately assembling camera is needed.In general, using one
A multiple lens of support.Lens barrel is rack-mount, and provides image inductor and receive image by lens barrel.Important
It is by multiple lens arrangements to the lens barrel, and for lens barrel to be precisely assembled on corresponding holder.
Invention content
According to an embodiment of the invention, assembly device is designed to fit optical module.The optical module includes holding
Receive the lens barrels of multiple lens.In order to limit unnecessary random light, the shading as SOMA may be placed between lens barrel
Component.
It may include a lens collector and a lens barrel eyelid retractor to assemble device.
The lens collector design is used to obtain lens from tray plate to be assembled to the lens barrel.When lens barrel needs to install
When multiple lens barrels, at one, there may be multiple lens collectors in assembly device.It is organized in this way there are two furthermore, it is possible to or more
Designed for assembling two or more lens barrels with the time.
Lens are moved to above lens barrel eyelid retractor by the lens collector.Then, have in the lens barrel eyelid retractor design
One anchor drive, for moving up lens barrel, to agree with the controlled intensity and position that are driven by eyeglass.
In some embodiments, when the lens barrel eyelid retractor, which is controlled, to move up to be engaged with lens, exist successively
The introducing stage of generation and main assembling stage.In the introducing stage, the first power is applied to by the anchor drive
The lens barrel eyelid retractor.In the main assembling stage, the second power is applied to by the lens barrel branch by the anchor drive
Support device.First power is smaller than the second power.For example, in the introducing stage, power can be 300g/cm2, and in main assembling stage,
Power can be 2000g/cm2~3000g/cm2。
It is accurately controlled effect in order to provide, the anchor drive may include the servo for having corresponding driving mechanism
Motor, as a series of connecting rods with ball, for driving lens barrel eyelid retractor with the controlled speed of a tool and power, upwards
Or it moves down.Using optical measuring device, this anchor drive can be controlled in the precision level of 0.01mm.
In some cases, when lens collector not complete alignment mirror bylinder.For example, being supported by lens collector saturating
Mirror uneven surface row is in the surface of lens barrel.In this case, when lens be inserted into lens barrel when, between lens and lens barrel there may be
Angle of inclination.In order to keep fit on relatively reliable, the lens barrel eyelid retractor can move down certain distance, rotation angle, so
After re-engage with lens.It, can more reliably mounted lens by changing lens barrel body then applied force on it at a certain angle.
This method can be used more than once.In other words, lens barrel eyelid retractor can be rotated with multiple angles, be used for and multiple angles
Degree is engaged with cylinder in order.It damages in order to prevent, before replacing another angle, supporting rack may move down, with again
It is secondary to agree with the lens.
As set forth above, it is possible to measuring device be arranged on lens barrel eyelid retractor, to measure the displacement distance of lens barrel eyelid retractor.When
When multiple lens and other component are stacked into a cylinder one by one, each operation can correspond to the distance measured.It is logical
It crosses and calculates multiple measurement distances, the relative distance of lens can be obtained.Such result can feed back to the control of lens barrel eyelid retractor
System.In other words, such as：It is pressed on lens barrel or lens by giving additional force.If there is if possible, not wished there are any
Hope the mistake generated that can be adjusted.
In other cases, lens collector can have the adjusting dress that relative angle is adjusted relative to lens barrel eyelid retractor
It sets.For example, can be applied to several adjusting screws of adjustment lens collector angle.Operator can adjust these and adjust spiral shell
Nail, to ensure that lens collector can preferably be directed at lens barrel eyelid retractor.
In some cases, it can be aligned first with lens barrel eyelid retractor using collimator, the collimator being then aligned with is into one
Walk the regulating device for adjusting lens collector, the relative angle for being aligned between lens collector and lens barrel eyelid retractor.
This collimator has light emitting source to emit moveable light in collimator, is so further moved to corresponding light
Department of the Chinese Academy of Sciences's part.For example, mirror, before being directed into inductor, if collimator is completely parallel to place with optical component
Mirror holder, then inductor receive transmitted light.Otherwise, collimator can be adjusted to an angle, until collimator and lens barrel support
Device is aligned.After collimator is aligned with lens barrel eyelid retractor, can adjust lens collector with collimator-alignment, ensure indirectly
Lens collector is aligned with lens barrel eyelid retractor.
In addition, the center in order to ensure lens is aligned with lens barrel, and can also be inserted into other lenses in lens barrel, it may
There are one or more than one push rod.Two collecting parts that each catch bar can be pushed by spring are made.Two collection portions
Part clamps a lens, and with different power so that their spring pushes dynamic lens with different.And this will make lens
It is aligned with the edge of lens collector end.When all lens are aligned with the edge of corresponding lens collector, these lens
Also aligned with each other, therefore lens barrel eyelid retractor can be adjusted under these conditions.
In such a design it is possible to have multiple lens collectors be respectively used to collect to be assembled to it is multiple in lens barrel
Mirror.In the presence of the alignment device with multiple catch bars.Each catch bar corresponds to a lens, for pushing the lens to be aligned
Corresponding lens collector edge.
There are two the springs of different power for the catch bar tool, for shifting corresponding lens onto corresponding lens collector
An edge.
In addition, the lens collector can have for collecting and the attraction of lens difference component.For example, air drives
Pump can be used for generating low latitude atmospheric pressure and attract and be attached lens to generate suction.
In order to control this assembly device, there may be running corresponding software code control device, such as control circuit or
Microcomputer.The control device can provide the multiple parameters group with different assembly parameters to operator.For example, operation
The display output and input for obtaining operator can be arranged in the operator of assembly device.Operator can be in operation
Selection will be inserted into a kind of type optical component of lens barrel, and control device provides several options therefrom to select for operator.
After operator selects corresponding option, corresponding parameter is set, and operator need not input the institute of operation assembly device
There is parameter.It reduce operation complexity and costs, and improve user experience and performance.
Different parameter groups has different driving force and actuating speed, for driving lens barrel eyelid retractor to move upward or downward
It is dynamic.Such parameter can provide a table to further change by operator by control device.For example, operator can make
Relevant parameter is edited with popular table editing machine (such as Excel or Google Tools).Such table can controlled directly
It is edited in equipment, it can also be by other machines into edlin.The table is sent to control device, and is decoded to generate phase
The parameter answered is to control lens collector and lens barrel eyelid retractor.
In some lens barrels, lens, which have, tilts angle surface, and two lens are tilting contact at angle surface accordingly.
When lens barrel eyelid retractor is actuated to assemble corresponding lens, lens barrel eyelid retractor is controlled by measuring multiple distances.As general
When in corresponding lens arrangement to lens barrel, multiple distances can be used as to the assembly parameter of different phase.
In conclusion above mentioned embodiment provide a kind of effective assembly devices.
According to another embodiment of the invention, it provides a kind of for lens barrel to be assembled to such as action with camera
Assembly device on the eyelid retractor of phone electronics.This assembly device may be used as the machine in production pipeline.In the reality
Apply in example, the lens barrel with lens be further assembled into can be with OIS (stabilization) eyelid retractor or be further simply
Support the eyelid retractor of image inductor.
Lens in lens barrel are used to that external image to be directed to image inductor by lens barrel.However, saturating when that will have
When the lens barrel of mirror is assembled to eyelid retractor, image inductor need not be also installed.The embodiment can be used for by lens barrel and lens from
Dynamic alignment eyelid retractor.
Assembly device by optical imagery with being emitted to the lens illumination figure with the lens barrel for passing through path.Pass through road
Diameter is opposite with the lens barrel image RX path of external image is collected on image inductor.In other words, chart is placed on
The same side where original image inductor.The light chart, such as the transparent magic lantern with some alignment symbologies on it
On piece, luminous light source launch bar chart image outward by lens barrel.For collecting image data corresponding with optical imagery,
At least one camera is placed at the position for capturing bar chart image.In order to be more effectively carried out processing, can use several
It is a with low resolution camera rather than high resolution camera collects a part for bar chart image.By the figure for analyzing capture
Picture can detect undesirable angle of inclination between cylinder and holder.This problem can be sent back to the control of assembly device
In device processed, to adjust the opposite rigging position between lens barrel and eyelid retractor.Such operation can execute repeatedly, it means that
After adjusting opposite rigging position, video camera can be activated with capture images data again.Then, control device adjusts phase again
To rigging position.Finally, when image data meets predetermined standard time, control device is by fixed lens barrel and eyelid retractor.
Lens drum and holder can be fixed with UV cured glue.In other cases, lens barrel can use corresponding spiral shell
Silk structure or other mechanisms are fixed.
As set forth above, it is possible to multiple video cameras be positioned in different location, to receive corresponding to optical imagery different piece
Image data.Illumination figure can be the transparent chart illuminated with light source.
Description of the drawings
Fig. 1 is to illustrate to assemble the figure of device.
Fig. 2A and Fig. 2 B illustrate tool, and there are two the lens barrels of different visual angles.
Fig. 3 illustrates two lens with corresponding guide angle.
Fig. 4 illustrates another embodiment for assembling device.
Specific implementation mode
Coordinate schema and presently preferred embodiments of the present invention below, the present invention is further explained to reach predetermined goal of the invention institute
The technological means taken.
Referring to FIG. 1, Fig. 1 is to illustrate to assemble the figure of device.Assembling device has multiple lens collectors 102.These
Lens collector 102 is fixed on can be along the X-Y-Z axis robots arm 101 that the directions X-Y-Z are moved.In other words, described
Mirror collector 102 can be moved to precalculated position to obtain the corresponding component to be assembled.It is arranged in the bottom of lens collector 102
There is suction unit 103.Pulsometer can be used for generating lower air pressure in suction unit 103 so that suction unit 103 is absorbable
Comparable component, such as lens 100.
Assembling device also has the cylinder eyelid retractor 104 being located on platform 105.Cylinder eyelid retractor 104 can be by such as servo electricity
The anchor drive of machine drives, and corresponding connecting rod and/or ball can be operated in high accuracy operation by having.
Cylinder eyelid retractor 104 is used to support the lens barrel 11 of receiving lens 111 or other elements, such as only passes through intermediate portion
Shade limit light.
Fig. 2A and Fig. 2 B illustrate the lens barrel 201 with lens or the lens barrel as camera module optical component.It is multiple
Lens 202,203,204 stack each other, and some additional elements 205 being open among it are allowed light through as SOMA
It is inserted into lens barrel 201.
Fig. 3 illustrates two lens 301,302 with orientation angle 3011 and 3012.In period of assembly, lens 301 are first
First contacted with bottom lens 32 with smaller power.If not being originally in this way, orientation angle 3011 and 3012 ensures that two thoroughly
Mirror 301 and 302 is aligned.When carrying out this alignment, the power of bigger can be applied to place top lens 301, this method will make
Lens can be preferably aligned.
According to an embodiment of the invention, assembly device is designed to assembly optical module.The optical module includes holding
Receive the lens barrels of multiple lens.In order to limit unnecessary random light, the shading as SOMA may be placed between lens barrel
Component.
It may include lens collector and lens barrel eyelid retractor to assemble device.
Lens collector design is used to obtain lens from tray plate to be assembled to lens barrel.When lens barrel needs to install multiple cylinders
When, at one, there may be multiple lens collectors in assembly device.Furthermore, it is possible to be set by this of two or more
Meter is once combined into two sets or more sets.
Lens are moved to above lens barrel eyelid retractor by lens collector.Then, there are one positioning to drive for the design of lens barrel eyelid retractor
Dynamic device, for moving up lens barrel, to agree with the controlled intensity and position that are driven by eyeglass.
In some embodiments, when the lens barrel eyelid retractor, which is controlled, to move up to be engaged with lens, exist successively
The introducing stage of generation and main assembling stage.In the introducing stage, the first power is applied to by the anchor drive
The lens barrel eyelid retractor.In the main assembling stage, the second power is applied to by the lens barrel branch by the anchor drive
Support device.First power is smaller than the second power.For example, in the introducing stage, power can be 300g/cm2, and in main assembling stage,
Power can be 2000g/cm2~3000g/cm2。
It is accurately controlled effect in order to provide, the anchor drive may include the servo for having corresponding driving mechanism
Motor, as a series of connecting rods with ball, for driving lens barrel eyelid retractor with the controlled speed of a tool and power, upwards
Or it moves down.Using optical measuring device, this anchor drive can be controlled in the precision level of 0.01mm.
In some cases, when lens collector not complete alignment mirror bylinder.For example, being supported by lens collector saturating
Mirror uneven surface row is in the surface of lens barrel.In this case, when lens be inserted into lens barrel when, between lens and lens barrel there may be
Angle of inclination.In order to keep fit on relatively reliable, the lens barrel eyelid retractor can move down certain distance, rotation angle, so
After re-engage with lens.It, can more reliably mounted lens by changing lens barrel body then applied force on it at a certain angle.
This method can be used more than once.In other words, lens barrel eyelid retractor can be rotated with multiple angles, be used for and multiple angles
Degree is engaged with cylinder in order.It damages in order to prevent, before replacing another angle, supporting rack may move down, with again
It is secondary to agree with the lens.
As set forth above, it is possible to measuring device be arranged on lens barrel eyelid retractor, to measure the displacement distance of lens barrel eyelid retractor.When
When multiple lens and other component are stacked into a cylinder one by one, each operation can correspond to the distance measured.It is logical
It crosses and calculates multiple measurement distances, the relative distance of lens can be obtained.Such result can feed back to the control of lens barrel eyelid retractor
System.In other words, such as：It is pressed on lens barrel or lens by giving additional force.If there is if possible, not wished there are any
Hope the mistake generated that can be adjusted.
In other cases, lens collector can have the adjusting dress that relative angle is adjusted relative to lens barrel eyelid retractor
It sets.For example, can be applied to several adjusting screws of adjustment lens collector angle.Operator can adjust these and adjust spiral shell
Nail, to ensure that lens collector can preferably be directed at lens barrel eyelid retractor.
In some cases, it can be aligned first with lens barrel eyelid retractor using collimator, the collimator being then aligned with is into one
Walk the regulating device for adjusting lens collector, the relative angle for being aligned between lens collector and lens barrel eyelid retractor.
This collimator has light emitting source to emit moveable light in collimator, is so further moved to corresponding light
Department of the Chinese Academy of Sciences's part.For example, mirror, before being directed into inductor, if collimator is completely parallel to place with optical component
Mirror holder, then inductor receive transmitted light.Otherwise, collimator can be adjusted to an angle, until collimator and lens barrel support
Device is aligned.After collimator is aligned with lens barrel eyelid retractor, can adjust lens collector with collimator-alignment, ensure indirectly
Lens collector is aligned with lens barrel eyelid retractor.
In addition, the center in order to ensure lens is aligned with lens barrel, and can also be inserted into other lenses in lens barrel, it may
There are one or more than one push rod.Two collecting parts that each catch bar can be pushed by spring are made.Two collection portions
Part clamps a lens, and with different power so that their spring pushes dynamic lens with different.And this will make lens
It is aligned with the edge of lens collector end.When all lens are aligned with the edge of corresponding lens collector, these lens
Also aligned with each other, therefore lens barrel eyelid retractor can be adjusted under these conditions.
In such a design it is possible to have multiple lens collectors be respectively used to collect to be assembled to it is multiple in lens barrel
Mirror.In the presence of the alignment device with multiple catch bars.Each catch bar corresponds to a lens, for pushing the lens to be aligned
Corresponding lens collector edge.
There are two the springs of different power for the catch bar tool, for shifting corresponding lens onto corresponding lens collector
An edge.
In addition, the lens collector can have for collecting and the attraction of lens difference component.For example, air drives
Pump can be used for generating low latitude atmospheric pressure and attract and be attached lens to generate suction.
In order to control this assembly device, there may be running corresponding software code control device, such as control circuit or
Microcomputer.The control device can provide the multiple parameters group with different assembly parameters to operator.For example, operation
The display output and input for obtaining operator can be arranged in the operator of assembly device.Operator can be in operation
Selection will be inserted into a kind of type optical component of lens barrel, and control device provides several options therefrom to select for operator.
After operator selects corresponding option, corresponding parameter is set, and operator need not input the institute of operation assembly device
There is parameter.It reduce operation complexity and costs, and improve user experience and performance.
Different parameter groups has different driving force and actuating speed, for driving lens barrel eyelid retractor to move upward or downward
It is dynamic.Such parameter can provide a table to further change by operator by control device.For example, operator can make
Relevant parameter is edited with popular table editing machine (such as Excel or Google Tools).Such table can controlled directly
It is edited in equipment, it can also be by other machines into edlin.The table is sent to control device, and is decoded to generate phase
The parameter answered is to control lens collector and lens barrel eyelid retractor.
In some lens barrels, lens, which have, tilts angle surface, and two lens are tilting contact at angle surface accordingly.
When lens barrel eyelid retractor is actuated to assemble corresponding lens, lens barrel eyelid retractor is controlled by measuring multiple distances.As general
When in corresponding lens arrangement to lens barrel, multiple distances can be used as to the assembly parameter of different phase.
In conclusion above mentioned embodiment provide a kind of effective assembly devices.
Referring to FIG. 4, illustrating another embodiment.
According to another embodiment of the invention, it provides a kind of for lens barrel 42 to be assembled to such as with camera
Mobile phone etc electronic equipment eyelid retractor 41 on assembly device.Multiple lens 421 can be stacked in lens barrel 42,
422.This assembly device may be used as the machine in production line.In this embodiment, lens barrel 42 or in which have
The lens barrel of lens is further assembled into the eyelid retractor 41 that can have OIS (stabilization) or simply further supports image sensing
The eyelid retractor 41 of device.
Lens 421,422 in the lens barrel are used to that external image to be directed to image inductor by lens barrel.However,
When there will be the lens barrel of lens to be assembled to eyelid retractor, image inductor need not be also installed.The embodiment can be used for mirror
Cylinder is automatically aligned to eyelid retractor with lens.
The assembly device by optical imagery with being emitted to lens illumination Figure 45 with the lens barrel for passing through path.
It is opposite with the 42 image RX path of lens barrel of external image is collected on image inductor to pass through path.In other words, chart
45 are placed on the same side where original image inductor.The light chart 45, such as there are some alignment symbols on it
Number transparent slide on, luminous light source 451 launches bar chart image outward by lens barrel.For collecting and optical imagery phase
Corresponding image data, at least one camera 401,402,403,404 are placed at the position for capturing bar chart image.For
Be more effectively carried out processing, can use it is several there is low resolution camera 401,402,403,404, rather than high-resolution
Rate camera collects a part for bar chart image.By analyzing the image of capture, it can detect between cylinder and holder and be not intended to
Angle of inclination.This problem can be sent back in the control device of assembly device, to adjust between lens barrel and eyelid retractor
Opposite rigging position.Such operation can execute repeatedly, it means that after adjusting opposite rigging position, can swash again
Video camera living is with capture images data.Then, control device adjusts opposite rigging position again.Finally, when image data meets
Predetermined standard time, control device is by fixed lens barrel and eyelid retractor.
Lens drum and holder can be fixed with UV cured glue 431,432.In other cases, lens barrel can use phase
The screw structural answered or other mechanisms are fixed.
As set forth above, it is possible to multiple video cameras be positioned in different location, to receive corresponding to optical imagery different piece
Image data.Illumination figure can be the transparent chart illuminated with light source.
Other relevant variations are can be adopted, but as used identical spirit, it also should be by claim
Defined by the present invention covered.
The above is only the preferred embodiment of the present invention, not does limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, technology according to the present invention is real
Any simple modification, equivalent change and modification made by confrontation above example still fall within the range of technical solution of the present invention
It is interior.
Claims (14)
1. a kind of assembly device for assembling camera model, the camera model includes the lens barrel of multiple lens, including：
The one lens collector for being assembled to multiple lens from tray plate on cylinder；
The one cylinder eyelid retractor with anchor drive, for the series connection of multiple lens to be installed to cylinder；And
A lens collector is mounted on cylinder more than one, for collecting multiple lens respectively, and has multiple catch bars,
Each catch bar corresponds to a lens, for push lens with to the corresponding lens collector of homogeneous alignment device
Edge, to ensure that mirror holder accurately installs multiple lens.
2. assembly device according to claim 1, there is the bylinder anchor drive, the anchor drive to be used for
The lens are moved on the lens barrel eyelid retractor in the lens collector, move up later the lens barrel with institute
Lens engagement is stated, there is controlled intensity and position, barrel support device to rotate up and down and with controlled angle
Barrel support device.
3. assembly device according to claim 2, the cylinder eyelid retractor, which is controlled, to move up to be connect with the lens
When conjunction, introducing stage and main assembling stage occur successively, are introduced into the stage described, and first power passes through anchor drive
It is applied to the cylinder eyelid retractor, in main assembling stage, the second power is applied to an eyelid retractor by anchor drive, and the first power is small
In the second power.
4. assembly device according to claim 2, the anchor drive include servomotor, the servo-electric
There is machine corresponding driving mechanism to be moved up or down for driving the cylinder eyelid retractor with controlled speed and power.
5. assembly device according to claim 1, the cylinder eyelid retractor is rotated with multiple angles, sequentially with described more
A angle is engaged with the cylinder.
6. assembly device according to claim 1, the cylinder eyelid retractor before changing another angle, move down with
It is engaged again with lens.
7. assembly device according to claim 1, further includes measuring device, multiple corresponding lens arrangements are arrived for working as
When in the lens barrel, multiple distance values are measured, the distance value corresponds to the relative distance between the multiple lens.
8. assembly device according to claim 1, the lens collection utensil is useful for adjusting relative to the lens barrel
The regulating device of eyelid retractor relative angle.
9. assembly device according to claim 1 is then aligned with wherein being aligned first with cylinder eyelid retractor using collimator
Collimator is used to adjust the regulating device of lens collector, the relative angle for being aligned between lens collector and lens barrel eyelid retractor
Degree.
10. there are two the springs of different power for assembly device according to claim 1, wherein catch bar tool, being used for will be opposite
The lens answered shift an edge of corresponding lens collector onto.
11. assembly device according to claim 1, wherein lens collection utensil are useful for collecting and lens difference component
Attraction.
12. assembly device according to claim 1, further includes control device, wherein the control device is carried to operator
For the multiple parameters group with different assembly parameters, and different parameter groups is described with different driving forces and for driving
The actuating speed that eyelid retractor moves up or down.
13. assembly device according to claim 12, wherein the control device provides interface to operator, for operating
The details of person's selection parameter group and adjusting parameter collection is to control assembly device.
14. assembly device according to claim 1, wherein the lens have angle of inclination surface, and two lens
It is contacted at corresponding inclination angle surface, when the cylinder support device is actuated to assemble corresponding lens, passes through measurement
Multiple distances control the cylinder support device, and the multiple distance is used as assembly parameter, corresponding lens arrangement is arrived
In different stage lens barrels.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762500476P | 2017-05-02 | 2017-05-02 | |
| US62/500,476 | 2017-05-02 |
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|---|---|
| CN108803070A true CN108803070A (en) | 2018-11-13 |
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| CN201710572914.9A Pending CN108803070A (en) | 2017-05-02 | 2017-07-14 | Assemble devices and methods therefor |
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Application publication date: 20181113 |