CN108803229B - Socket unit for checking camera module - Google Patents
Socket unit for checking camera module Download PDFInfo
- Publication number
- CN108803229B CN108803229B CN201710423631.8A CN201710423631A CN108803229B CN 108803229 B CN108803229 B CN 108803229B CN 201710423631 A CN201710423631 A CN 201710423631A CN 108803229 B CN108803229 B CN 108803229B
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- Prior art keywords
- socket
- camera module
- base
- cylinder
- socket base
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Classifications
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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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
Abstract
The present invention relates to a socket unit for camera module inspection, characterized by comprising: a substrate having an opening; the socket base is hinged to the upper surface of the substrate, an installation part for installing a camera module is formed on one surface of the socket base, and the installation part is provided with an inspection window; the socket cover is hinged to the upper surface of the base plate and is provided with a hinge shaft on the same line with the hinge shaft of the socket base; and a rotation device for rotating only the socket cover or rotating the socket base and the socket cover together. This makes it possible to reverse the camera module in a fixed state, and to perform inspection in a state where the camera module is placed at various angles.
Description
Technical Field
The present invention relates to a camera module inspection socket unit, and more particularly, to a camera module inspection socket unit capable of inverting a camera module.
Background
Most of smart phones, tablet computers, notebook computers, and the like, which are widely used recently, have a camera module built therein. The camera module is configured to arrange a printed circuit board, an image sensor, a driving part, and a lens inside a housing.
When a camera module is manufactured, after the components of the camera module are assembled, the camera module is inspected for defects, and at this time, the inspection is usually performed in a state where the lens portion of the camera module is placed upward.
However, when the camera module is actually used, the camera module may be placed with the lens portion upward, but when the camera module is used, the camera module may be placed with the lens portion downward or to the side, and therefore, the inspection performed in a state where the camera module is placed with the lens portion upward cannot completely diagnose whether the camera module is defective.
Therefore, in order to accurately check whether or not the camera module is defective, it is necessary to perform the check by setting the orientation of the lens portion of the camera module to a different orientation.
(patent document 1) KR10-1683070B1
Disclosure of Invention
Accordingly, the present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a camera module inspection socket unit which can perform an inspection by changing the direction of a camera module when inspecting the camera module, thereby improving the accuracy of the inspection.
The above object is achieved by a socket unit for camera module inspection according to the present invention for fixing a camera module when inspecting the camera module, comprising: a substrate having an opening; the socket base is hinged to the upper surface of the substrate, an installation part for installing a camera module is formed on one surface of the socket base, and the installation part is provided with an inspection window; the socket cover is hinged to the upper surface of the base plate and is provided with a hinge shaft on the same line with the hinge shaft of the socket base; and a rotation means for rotating only the socket cover or rotating the socket base and the socket cover together.
The rotating device may include: a first pinion gear connected to a hinge shaft of the socket base and rotated together with the socket base; a first rack gear meshed with the first pinion; a first cylinder which moves the first rack gear in a length direction; a second pinion gear connected to the hinge shaft of the socket cover and rotating together with the socket cover; a second rack gear meshed with the second pinion; and a second cylinder moving the second rack gear in a length direction. At this time, when the socket base rotates, the second cylinder may be driven in the same direction as the first cylinder. Or the force applied by the first air cylinder is larger than that applied by the second air cylinder, and the direction of the force applied by the second air cylinder can be kept constant when the socket base rotates.
Preferably, a parallel member for making the socket base and the socket cover parallel to the base plate is formed to protrude on an upper surface of the base plate.
Preferably, the socket base has one or more mounting portions, and the substrate has the same number of openings as the number of the mounting portions.
A guide wire may be formed at a periphery of the inspection window of the socket base.
Preferably, a clamping portion is provided on a portion of the circumference of the socket base; a lock is provided at a part of the periphery of the socket cover, the lock being engaged with the engagement portion to restrain the socket cover in a state of facing the socket base, and a release pusher is provided on the upper surface of the base plate, the release pusher releasing the restraint of the lock by pushing the lock.
The socket unit for camera module inspection of the present invention can reverse the camera module in a fixed state, so that the inspection can be performed in a state where the camera module is placed at various angles, thereby improving the accuracy of the inspection.
The camera module inspection socket unit is simple in operation method and can inspect a plurality of camera modules at one time.
Drawings
FIG. 1 is a combined perspective view of a socket unit for camera module inspection according to the present invention,
fig. 2 is an exploded perspective view of the socket unit for camera module inspection,
fig. 3 and 4 are explanatory views about an operation method of the socket unit for camera module inspection,
fig. 5 to 7 are explanatory views of a camera module inspection receptacle unit having one mounting portion.
Description of the reference numerals
1 socket unit for checking camera module
10 substrate 11 opening
12 parallel parts 13 release pusher
20 socket base 21 mounting part
22 inspection window 23 guide wire
24 card portion 30 socket cover
31 lock 41 first pinion
42 first rack and pinion 43 first cylinder
44 second pinion 5 second rack gear
46 second cylinder
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The present invention relates to a camera module inspection socket unit 1, which is configured to move a camera module in a state where the camera module is fixed when the camera module is inspected, thereby allowing the camera module to pass through various inspection units, and to a camera module inspection socket unit 1. The receptacle unit 1 can turn the camera module upside down or upside down, and thus can perform inspection in a state where the camera module is placed at various angles.
The camera module inspection socket unit 1 of the present invention includes: a base plate 10, a socket base 20, a socket cover 30 and a rotating device. Fig. 1 is a perspective view showing a camera module inspection socket unit 1 according to the present invention, and fig. 2 is an exploded perspective view of the camera module inspection socket unit 1.
The base plate 10 is formed in a horizontal plate shape, and functions to support other components of the outlet unit 1 of the present invention. The substrate 10 is attached to an index table of the camera module inspection apparatus so that the entire socket unit 1 can be moved to various inspection unit positions. The substrate 10 is provided with an opening 11, and when the camera module is placed downward, the camera module can be inspected through the opening 11 at a lower portion of the substrate 10.
A mounting portion 21 for mounting a camera module is formed on one surface of the socket base 20, and the camera module is fixed to the socket base 20. The camera module is mounted on the mounting portion 21 so as to face the other surface of the receptacle base 20, and since the inspection window 22 is formed in the mounting portion 21, the camera module can be inspected through the inspection window 22.
The socket base 20 is hinged to the upper surface of the base plate 10. Therefore, when the socket base 20 is rotated such that the other surface of the socket base 20 is opposed to the substrate 10, i.e., the socket base 20 is rotated such that the other surface of the socket base 20 faces downward, the camera module faces downward. In contrast, when the socket base 20 is rotated such that the other side of the socket base 20 faces upward, the camera module faces upward.
The joint portion between the substrate 10 and the socket base 20 is formed at a position where the inspection window 22 of the socket base 20 and the opening 11 of the substrate 10 can be aligned when the other surface of the socket base 20 is opposed to the substrate 10, thereby preventing the substrate 10 from interfering with the inspection work when the camera module is inspected in a state of facing downward.
The socket cover 30 functions to cover the mounting portion 21 of the socket base 20, thereby preventing the camera module located on the mounting portion 21 from being detached. The socket cover 30 is hinged to the upper surface of the base plate 10, like the socket base 20. The hinge axis of the socket cover 30 is positioned on the same line as the hinge axis of the socket base 20 and can be rotated with the socket base 20 or rotated together with the socket base 20.
Of course, the socket base 20 and the socket cover 30 may have a connection terminal for electrical connection with the camera module, a main board for driving the camera module under inspection to work, and the like, as in the conventional socket for inspection camera modules.
The rotation means functions to control the rotation of the socket base 20 and the socket cover 30 with reference to the base plate 10. In more detail, the rotation means rotates only the socket cover 30 alone or rotates the socket base 20 and the socket cover 30 together.
When only the socket cover 30 is rotated, the socket cover 30 opens or closes the mounting portion 21 of the socket base 20. When the mounting part 21 is opened, a camera module to be inspected may be mounted on the mounting part 21 or a camera module whose inspection is completed may be removed from the mounting part 21.
When the socket base 20 and the socket cover 30 are rotated together, the camera module may be inverted so that the camera module faces upward or downward (may be reversed). When the receptacle cover 30 closes the mounting portion 21, even if the camera module positioned on the mounting portion 21 is inverted, it does not come off the mounting portion 21.
More specifically, the rotating device is composed of a first pinion 41, a first rack gear 42, a first cylinder 43, a second pinion 44, a second rack gear 45, and a second cylinder 46. Fig. 3 and 4 are explanatory views about a method of operating the socket base and the socket cover by the rotating means, and parts are indicated by dotted lines to indicate constituent parts of the rotating means. Further, the arrow symbols shown at the first and second cylinders 43 and 46 indicate the direction of the force applied by the first and second cylinders 43 and 46, which may be different from the moving direction of the rods of the first and second cylinders 43 and 46.
The second pinion gear 44 may be fixed on a hinge shaft of the socket cover 30 and rotate together with the socket cover 30, and the second rack gear 45 is engaged with such second pinion gear 44. Further, the rod of the second cylinder 46 is connected to the second rack gear 45, and moves the second rack gear 45 in the longitudinal direction. Therefore, in a state where the rod of the second cylinder 46 is retracted, as shown in fig. 3 (a), the socket cover 30 faces the board 10 and opens the mounting portion 21 of the socket base 20. When the rod of the second cylinder 46 advances, as shown in fig. 3 (b), the second rack gear 45 connected to the rod of the second cylinder 46 also advances together, and the second pinion gear 44 engaged with the second rack gear 45 rotates, and the socket cover 30 closes the mounting portion 21 of the socket base 20. In addition, since the receptacle base 20 maintains the state in which the surface on which the mounting portion 21 is positioned faces upward when only the receptacle cover 30 is rotated, the camera module can be stably mounted on the mounting portion 21 in the open state.
The first pinion gear 41 is fixed on a hinge shaft of the socket base 20 so as to be rotatable together with the socket base 20, and the first rack gear 42 is engaged with the first pinion gear 41. Further, the rod of the first cylinder 43 is connected to the first rack gear 42, and moves the first rack gear 42 in the longitudinal direction. In a state where the rod of the first cylinder 43 advances, as shown in fig. 4 (a), the socket base 20 faces upward, so that the camera module mounted in a downward state can be inspected at the lower portion of the substrate 10. Further, when the rod of the first cylinder 43 retreats, as shown in fig. 4 (b), the first rack gear 42 connected to the rod of the first cylinder 43 also retreats together, and the first pinion 41 engaged with the first rack gear 42 rotates and the other surface of the receptacle base 20 faces upward, so that the camera module mounted in an upward facing state can be inspected on the upper portion of the substrate 10.
The force applied by the first cylinder 43 to the first rack gear 42 is formed to be larger than the force applied by the second cylinder 46 to the second rack gear 45, and thus the socket base 20 and the socket cover 30 can be rotated together. And at this time, when the socket base 20 rotates, the force applied to the second rack gear 45 by the second cylinder 46 is kept constant. It should be noted that the arrow symbols shown on the first air cylinder 43 and the second air cylinder 46 in fig. 4 represent the directions of the forces exerted by the first air cylinder 43 and the second air cylinder 46 when the force exerted by the first air cylinder 43 is greater than the force exerted by the second air cylinder 46.
As shown in fig. 4 (a) to 4 (b), when the socket base 20 is reversed in a state where the socket cover 30 is opposed to the socket base 20, if the force applied by the first cylinder 43 is larger than the force applied by the second cylinder 46, the socket base 20 receives the force of the socket cover 30 by driving the first cylinder 43 having a larger force without separately controlling the second cylinder 46, and the socket base 20 and the socket cover 30 are reversed together.
When the socket base 20 is reversed, the socket cover 30 is reversed together with the socket base 20 by the retreat of the first cylinder 43, but the second cylinder 46 keeps the forward movement state and continues to apply a force to rotate the socket cover 30 in the direction of the socket base 20, so that the socket cover 30 can be closely attached to the socket base 20.
When the socket base 20 rotates, the second cylinder 46 is driven in the same direction as the first cylinder 43, and thus the socket base 20 and the socket cover 30 can be rotated together.
That is, after the camera module is mounted on the mounting portion 21 of the receptacle base 20 and the mounting portion 21 is closed by the receptacle cover 30, the second cylinder 46 is driven in the same direction as the first cylinder 43 to rotate the receptacle cover 30 along with the receptacle base 20, so that the receptacle cover 30 maintains the state of closing the mounting portion 21, and the camera module is prevented from being detached from the rotating mounting portion 21 of the receptacle base 20.
For example, when the first cylinder 43 advances with the face of the socket base 20 facing upward, the second cylinder 46 also advances and brings the socket cover 30 into contact with the socket base 20; when the first cylinder 43 retreats and the socket base 20 is reversed, the second cylinder 46 also retreats and reverses the socket cover 30 together with the socket base 20 in a state of being in contact therewith.
In order to improve the accuracy of the inspection of the camera module, it is necessary to arrange the socket base 20 and the socket cover 30 for fixing the camera module in parallel with the substrate 10 so that the camera module can form a predetermined angle with the inspection unit.
The parallel member 12 supports opposite side portions of the hinge shaft of the socket base 20 and the socket cover 30 such that one end portion of the socket base 20 and the socket cover 30 hinged to the base plate 10 has the same height as the other end portion of the opposite side when the socket base 20 and the socket cover 30 are opposed to the base plate 10.
The socket base 20 may have one or more than two mounting portions 21, and the substrate 10 may have the same number of openings 11 as the number of mounting portions 21. As an example, it can be seen from fig. 1 and the like that the socket base 20 has two mounting portions 21.
At this time, the camera module is mounted on each mounting portion 21 and inspection is performed, so that the rapidity of inspection can be improved.
In order to rotate the socket base 20 having two or more mounting portions 21 and formed in an elongated shape, the first pinion gear 41 and the first rack gear 42 of the rotating device may be respectively plural, and a connection member 47 may be further formed to transmit the driving force of the first cylinder 43 to each of the first rack gears 41.
Fig. 5 to 7 show a socket unit using a socket base 20 having only one mounting portion 21. Fig. 5 shows a state where the mounting portion 21 is opened, and in this state, the camera module can be mounted on the mounting portion 21 of the outlet base 20. Fig. 6 shows a state in which the mounting portion 21 is closed by rotating the receptacle cover 30 to face one surface of the receptacle base 20 for inspection with the camera module facing downward. Fig. 7 shows a state in which the socket base 20 and the socket cover 30 are turned upside down together to perform the inspection with the camera module facing upward.
The socket unit 1 shown in fig. 5 to 7 is identical in operation principle to the socket unit shown in fig. 1 to 4 except that the number of the mounting portions 21 or the positions of the components constituting the rotating means are different. That is, as shown in fig. 7, in order to reverse the socket base 20 and the socket cover 30 together, the force applied to the first rack gear 42 by the first cylinder 43 is made larger than the force applied to the second rack gear 45 by the second cylinder 46, so that the first cylinder 43 operates while receiving the force of the second cylinder 46 even if the force applied by the second cylinder 46 remains in the original state; alternatively, the first cylinder 43 and the second cylinder 46 are caused to apply forces in the same direction, thereby rotating the socket base 20 and the socket cover 30 together.
The camera module inspection socket unit of the present invention may further include a restraining means for restraining the socket cover 30 in a state of being opposed to the socket base 20. The restraining means is composed of a locking portion 24, a lock 31 and a releasing pusher 13. It should be noted that, although only the socket unit of fig. 5 to 7 having one mounting portion 21 shows the components such as the engaging portion 24 constituting the restraining means, these components may be provided in a socket unit having two or more mounting portions 21.
The latch portion 24 is located at a portion around the socket base 20 and has a groove or a bent portion so as to be able to latch with other components. The latch 31 is formed around the socket cover 30 at a position corresponding to the card portion 24 when the socket base 20 is opposed to the socket cover 30. The lock 31 is engaged with the engaging portion 24 by the force applied to the socket cover 30 by the second cylinder 46, thereby restraining the socket base 20 and the socket cover 30 in an opposing state.
Therefore, when the receptacle base 20 and the receptacle cover 30 are reversed together in a state where the camera module is mounted on the mounting portion 21 of the receptacle base 20, the state where the mounting portion 21 is closed can be stably maintained, and the camera module can be more reliably prevented from being detached from the mounting portion 21.
The release pusher 13 is used to release the constrained state of the socket base 20 and the socket cover 30 caused by the lock 31 being caught by the catch portion 24, so that the mounting portion 21 can be opened after the inspection of the camera module is completed. The release pusher 13 is located on the upper surface of the base plate 10, and as shown in fig. 5 and the like as an example, the release pusher 13 is constituted by a thin single-acting cylinder in which a rod 13a pushes out the lock 31 while protruding, thereby separating the lock 31 from the card portion 24. The release pusher 13, which is constituted by a single-acting cylinder, automatically restores its original state after pushing the lock 31.
A guide wire 23 may be formed at the periphery of the inspection window 22 of the socket base 20.
The guide wire 23 is used to accurately align the position of the inspection unit with respect to the outlet unit 1 of the present invention.
The guide wire 23 is formed on the other surface of the socket base 20 in the direction in which the camera module faces.
The scope of the claims of the present invention is not limited to the above-described embodiments, but may be implemented by various forms of embodiments within the scope of the appended claims. Various modifications to the present invention can be made by those skilled in the art without departing from the spirit of the present invention claimed in the claims.
Claims (8)
1. A socket unit for camera module inspection for fixing a camera module when inspecting the camera module, comprising:
a substrate having an opening;
the socket base is hinged to the upper surface of the substrate, an installation part for installing a camera module is formed on one surface of the socket base, and the installation part is provided with an inspection window;
the socket cover is hinged to the upper surface of the base plate and is provided with a hinge shaft on the same line with the hinge shaft of the socket base; and
and a rotating device for opening or closing the mounting part by rotating only the socket cover, or inverting the camera module provided on the mounting part by rotating the socket base and the socket cover together so that the camera module faces upward or downward, thereby inspecting the camera module in the upward and downward directions.
2. The socket unit for camera module inspection according to claim 1,
the rotating device includes: a first pinion gear connected to a hinge shaft of the socket base and rotated together with the socket base; a first rack gear meshed with the first pinion; a first cylinder which moves the first rack gear in a length direction; a second pinion gear connected to the hinge shaft of the socket cover and rotating together with the socket cover; a second rack gear meshed with the second pinion; and a second cylinder moving the second rack gear in a length direction.
3. The socket unit for camera module inspection according to claim 2,
when the socket base rotates, the second cylinder is driven in the same direction as the first cylinder.
4. The socket unit for camera module inspection according to claim 2,
the force applied by the first cylinder is greater than the force applied by the second cylinder,
the direction of the force applied by the second cylinder remains constant as the socket base rotates.
5. The socket unit for camera module inspection according to claim 1,
parallel parts are formed on the upper surface of the base plate in a protruding mode, and the parallel parts are used for enabling the socket base and the socket cover to be parallel to the base plate.
6. The socket unit for camera module inspection according to claim 1,
the socket base has more than one installation portion, the base plate has with the opening of the same quantity of installation portion.
7. The socket unit for camera module inspection according to claim 1,
a guide wire is formed on the periphery of the inspection window of the socket base.
8. The socket unit for camera module inspection according to claim 1,
a part of the periphery of the socket base is provided with a clamping part; a lock is provided on a part of the periphery of the socket cover, the lock being engaged with the engaging portion to restrain the socket cover in a state of facing the socket base,
and a releasing propeller is arranged on the upper surface of the substrate and used for releasing the restraint of the lock by pushing the lock.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170054295A KR102047466B1 (en) | 2017-04-27 | 2017-04-27 | Socket unit for testing camera module |
| KR10-2017-0054295 | 2017-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108803229A CN108803229A (en) | 2018-11-13 |
| CN108803229B true CN108803229B (en) | 2021-01-22 |
Family
ID=64095059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423631.8A Active CN108803229B (en) | 2017-04-27 | 2017-06-07 | Socket unit for checking camera module |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102047466B1 (en) |
| CN (1) | CN108803229B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102164974B1 (en) * | 2019-12-05 | 2020-10-13 | 주식회사 세인블루텍 | Multi Image Sensor Module Inspection Socket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630711A (en) * | 2012-08-24 | 2014-03-12 | 显微科技系统株式会社 | Camera module test socket |
| KR101425646B1 (en) * | 2014-06-25 | 2014-08-05 | 팸텍주식회사 | Camera module is mounted socket device |
| TW201623971A (en) * | 2014-12-30 | 2016-07-01 | Isc Co Ltd | Camera module test jig |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101316809B1 (en) * | 2013-05-07 | 2013-10-11 | 프라임텍 주식회사 | Test socket for camera module having enhanced durability |
| KR101308741B1 (en) * | 2013-06-04 | 2013-09-17 | 김광일 | Camera module test socket |
| KR101471575B1 (en) * | 2013-09-05 | 2014-12-12 | 에이케이이노텍주식회사 | Jig for inspecting camera module |
| KR101683070B1 (en) | 2016-09-27 | 2016-12-06 | 주식회사 제이앤에프이 | Face- front socket for testing of camera module |
-
2017
- 2017-04-27 KR KR1020170054295A patent/KR102047466B1/en active IP Right Grant
- 2017-06-07 CN CN201710423631.8A patent/CN108803229B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630711A (en) * | 2012-08-24 | 2014-03-12 | 显微科技系统株式会社 | Camera module test socket |
| KR101425646B1 (en) * | 2014-06-25 | 2014-08-05 | 팸텍주식회사 | Camera module is mounted socket device |
| TW201623971A (en) * | 2014-12-30 | 2016-07-01 | Isc Co Ltd | Camera module test jig |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102047466B1 (en) | 2019-11-22 |
| KR20180120835A (en) | 2018-11-07 |
| CN108803229A (en) | 2018-11-13 |
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Effective date of registration: 20210107 Address after: Han Guojingjidao Applicant after: ISMEDIA Co.,Ltd. Address before: Han Guojingjidao Applicant before: ISMEDIA Co.,Ltd. Applicant before: MECA TECH SYSTEMS Co.,Ltd. |
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