KR100709991B1 - Camera module inspection system - Google Patents

Abstract

The present invention relates to an apparatus for inspecting a camera module, and the technical problem to be solved is to position the camera module on an index table and rotate it by a predetermined angle in order to check position, round dispensing, open short test, focusing, image test, The present invention provides a camera module inspection apparatus capable of performing point dispensing, point curing, main curing and fail sorting processes.

To this end, the gist of the solution according to the present invention is a lens assembly is rotatably assembled to a holder, the camera table with an external terminal is mounted in a predetermined area, the index table to rotate by a predetermined angle, and the predetermined angle of the index table After the rotation, the round dispensing unit for dispensing the adhesive round between the holder of the camera module and the lens assembly, and after the predetermined angle rotation of the index table, is electrically connected to the external terminal of the camera module to test the open short state of the camera module. An open short test unit, an automatic focusing unit electrically connected to an external terminal of the camera module after a predetermined angle rotation of the index table, and rotating the lens assembly in a predetermined direction so that the camera module has an optimal focusing state; After a certain angle of rotation of the index table, the At the same time, the camera module captures the chart viewer and tests the image captured by the camera module to see if it is within the reference value range. Disclosed is a camera module inspection apparatus including a main hardening unit for curing an adhesive of the adhesive.

Camera Module, Round Dispensing, Open Short Test, Auto Focusing, Image Test

Description

Camera module inspection system

1 is a cross-sectional view showing an example of a general camera module.

2A to 2E are sequential cross-sectional views illustrating a method of manufacturing a general camera module.

3 is a schematic diagram schematically showing a camera module inspection apparatus according to the present invention.

4 is a plan view showing a camera module inspection apparatus according to the present invention.

Figure 5a is a front view showing the configuration of the loading unit and the unloading unit of the camera module inspection apparatus according to the present invention, Figure 5b is a front view showing the configuration of the magazine moving block provided between the loading and unloading unit.

6A is a side view illustrating a position check unit of the camera module inspecting apparatus according to the present invention, and FIGS. 6B and 6C are photographs showing an example of photographing a lens assembly and an external terminal of the camera module.

7 is a side view showing a round dispensing unit of the camera module inspection apparatus according to the present invention.

8 is a side view showing an open short test unit of the camera module inspection apparatus according to the present invention.

9A to 9C are plan views, side views, and cross-sectional views showing an auto focusing unit of the camera module inspection apparatus according to the present invention.

FIG. 10A is a side view illustrating a chart viewer installed at an upper portion of an automatic focusing unit of the camera module inspecting apparatus according to the present invention. FIG. 10B is a partial plan view illustrating an example of a chart installed in the chart viewer. It is an image showing the various states of the chart taken by.

11A and 11B are a plan view and a side view of the auxiliary focusing unit of the camera module inspection apparatus according to the present invention.

12A and 12B are plan and side views illustrating an image test unit of a camera module inspecting apparatus according to the present invention, FIG. 12C is an RGB image photographed by a camera module, and FIG. 12D is a white image for finding black spots. 12e is a black image to find the white spot.

13 is a side view showing a point dispensing unit of the camera module inspection apparatus according to the present invention.

14 is a side view showing a point curing unit of the camera module inspection apparatus according to the present invention.

FIG. 15A is a side cross-sectional view illustrating a main hardened part of the camera module inspecting apparatus according to the present invention, and FIG. 15B is an enlarged cross-sectional view of the main part of FIG.

Figure 16a is a side view showing the unloader of the fail sorting unit of the camera module inspection apparatus according to the present invention, Figure 16b is a front view showing the lift transfer unit, Figure 16c is a front view showing the sorting unit.

<Description of Symbols for Main Parts of Drawings>

CMS; Camera module inspection apparatus according to the present invention

M1, M2; Magazines T1, T2, T3, T4, T5; tray

100; A loading unit 101; Horizontal moving block

102; Elevator 103; Pusher

105; Magazine moving block 106; Magazine seating die

200; Index table 201; motor

202; Body 203; Radiation

204; Seating block 205; Support plate

300; Pick and place unit 400; Position check part

401; XYZ moving block 402; Light block

403; Camera block 500; Round Dispensing Unit

501; XYZθ moving block 502; dispenser

600; An open short test unit 601; XYZ moving block

602; Probe block 700; Auto focusing unit

701; XYZθ moving block 702; Focusing block

703; Motor 704; belt

705; Rotating block 710; Chart Viewer

711; XYZ moving block 712; Chart

720; Auxiliary focusing unit 721; XYZθ moving block

722; Macro lens block 800; Image test section

801; XYZ moving block 802; Image block

803; Probing block 804; Color sensor block

900; Point dispensing unit 901; XYθ moving block

902; X moving block 903; dispenser

1000; Point hardening portion 1001; XYZθ moving block

1002; Ultraviolet radiation block 1100; Main Curing Part

1101; Z moving block 1102; UV block

1103; Reflective block 1104; hall

1105; Reflective slope 1106; Air hole

1107; Fan 1200; Unloading Section

1201; Horizontal moving block 1202; elevator

1300; A fail sorting unit 1310; Unloader

1311; XYZ moving block 1312 picker

1320; Elevating transfer unit 1321; Z moving block

1322; Adsorption block 1323; Y moving block

1324; Rotating block 1330; Sorting section

1331; XZ moving block 1332; Picker

1333; ' Tray seating die 1334; Y moving block

The present invention relates to an apparatus for inspecting a camera module, and more particularly, to position a camera module on an index table, and to sequentially check position, round dispensing, open short test, focusing, image test, and point dispensing while rotating the camera module by a predetermined angle. And a camera module inspection apparatus for performing point curing, main curing and fail sorting processes.

Referring to FIG. 1, one example of a general camera module is shown in cross section.

As shown, the camera module 10 includes a circuit board 11, a semiconductor die 12 bonded to the circuit board 11 to convert an external image signal into an electrical signal, and the semiconductor die 12 and At least one connecting member 13 electrically connecting the circuit board 11 to each other, a mount holder 14 fixed to the circuit board 11 as an outer periphery of the semiconductor die 12, and the mount holder ( A lens assembly 15 fixed between the mount holder 14 and the lens assembly 15 and having a proper focus and allowing an external image to be transferred to the semiconductor die 12. It consists of an adhesive 16 to prevent the rotation of the, and the external terminal 17 is provided on one side of the circuit board 11 and electrically connected to the external device. In the figure, reference numeral 14a is a thread formed in the mount holder 14, and 15a is a thread formed in the lens assembly 15.

Here, although the external terminal 17 is illustrated as being formed on the upper surface of the circuit board 11 in FIG. 1, it may be formed on the lower surface of the circuit board 11. In addition, the shape, shape and length of the circuit board 11 from the mount holder 14 to the external terminal 17 can be variously changed.

2A-2E, a general method of manufacturing a camera module is shown in cross section.

As shown, the manufacturing method of the camera module 10 includes a circuit board providing step (see FIG. 2A), a die bonding / wire bonding step (see FIG. 2B), a mount holder fixing step (see FIG. 2C), and a lens assembly. A bonding step (FIG. 2D) and an adhesive dispensing step (see FIG. 2E). This is explained in more detail.

First, as shown in FIG. 2A, in the step of providing a circuit board, a circuit board 11 having an external terminal 17 formed on one side thereof is provided. Here, although the external terminal 17 is formed on the upper surface of the circuit board 11 in the drawing as an example, as described above, the external terminal 17 may be formed on the lower surface of the circuit board 11. In addition, the external terminal 17 may be formed in other steps below than the providing step of the circuit board 11.

Subsequently, in the die bonding / wire bonding step, as illustrated in FIG. 2B, the semiconductor die 12 is adhered to a predetermined region of the circuit board 11, and then at least one semiconductor die 12 and the circuit board 11 are bonded to each other. Bonding with each other of the connecting member (13).

Subsequently, in the mount holder fixing step as shown in FIG. 2C, the mount holder 14 penetrating in the vertical direction is mounted on the upper surface of the circuit board 11, which is the outer circumference of the semiconductor die 12 and the connecting member 13. do. Here, the mount holder 14 may be formed with a plurality of threads (14a) on the inner diameter surface.

Subsequently, in the lens assembly coupling step, as illustrated in FIG. 2D, the lens assembly 15 having a plurality of threads 15a formed on the outer diameter surface thereof is screwed to the mount holder 14. At this time, the lens assembly 15 stops the rotation at the angle at which the focus is best during rotation in a predetermined direction for screwing. In addition, an open short test and an image test are also performed to check whether the camera module 10 is electrically correctly operated and correctly recognizes an external image.

Subsequently, in the adhesive dispensing step as shown in FIG. 2E, in the area between the mount holder 14 and the lens assembly 15 of the camera module 10 in which focusing, open short test, and image test have been completed, the lens assembly Dispense adhesive 16 so that 15 does not move anymore. That is, the focus state of the lens assembly 15 is not changed. Of course, after dispensing the adhesive 16, a curing process is performed to cure the adhesive 16.

Meanwhile, as described above, an open short test process for testing whether the circuit of the camera module is correctly connected between the lens assembly coupling step and the adhesive dispensing step, a focusing process for ensuring the focus state of the lens assembly, and a semiconductor die An image test process is further included to test whether the external image is properly detected. Moreover, an adhesive curing process is further performed after the adhesive dispensing so that the dispensed adhesive can be cured.

However, conventionally, such an open short test process, a focusing process, an image test process, an adhesive dispensing process, and an adhesive curing process (all of which are collectively referred to as a test process) are performed on separate equipment, respectively, so that a single camera module is used. It takes a long time to complete, and there is a problem that the probability of damage is increased as the camera module is loaded and unloaded to different equipment many times.

In addition, as a separate equipment is required for each process as described above, the camera module manufacturing line is lengthened, and thus, a large place is required, and a line construction cost is also consumed.

In addition, in each conventional process equipment, the operator places a separate empty magazine in the unloading part, and the tray containing the camera module in which the process is completed is accommodated in the empty magazine, thereby increasing the amount of work of the operator. have.

In addition, conventionally, after focusing, adhesive dispensing is performed so that the lens assembly does not move or rotate from the holder, wherein the dispenser contacts the lens assembly to change the position of the lens assembly, thereby changing the focusing state of the lens assembly. there is a problem.

In addition, conventionally inconvenient problem of inverting the camera module itself or changing the setting state of the equipment according to the position (external terminal can be formed on the upper surface of the circuit board or the lower surface of the circuit board) of the external terminal of the camera module. There is.

In addition, conventionally, since there is no learning function in the focusing process, it is necessary to find the optimum focus state by rotating the lens assembly for several seconds from the initial position to match the focusing of the camera module, thereby causing a long focusing time.

In addition, according to the type of camera module (VGA camera module or MEGA camera module), there is an uncomfortable problem of changing the position of the image chart (chart taken by the camera module to focus) according to the focusing device.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to automatically move the empty magazine out of all the tray of the loading portion to the unloading portion, so that the tray containing the camera module tested is seated In addition, the present invention provides a camera module test apparatus in which an operator does not need to install a separate magazine in the unloading unit.

Another object of the present invention is to place the camera module on the rotatable index table, rotate the index table, position check, round dispensing, open short test, focusing, image test, point dispensing, point curing, main curing And a fail sorting process to provide a camera module test apparatus capable of not only a fast test process but also a test process in a narrow space.

Another object of the present invention is to provide a camera module test apparatus in which the focusing state of the camera module is not changed by dispensing by performing an open short test, focusing, image testing, and then dispensing the adhesive point after round dispensing of the adhesive. It is.

Another object of the present invention is to provide a camera module test apparatus capable of performing an open short test, focusing and image testing immediately without changing the device, even if the external terminal of the circuit board of the camera module is formed on either side (top or bottom). have.

Another object of the present invention is to provide a camera module test apparatus capable of shortening the focusing time of a camera module by learning the optimum rotation angle of the lens assembly during the focusing process of the camera module.

Another object of the present invention is to provide a camera module test apparatus capable of focusing a camera module without changing the distance of an image chart viewer, regardless of the type of camera module (VGA class or MEGA).

Another object of the present invention is to provide a camera module test apparatus that can further refine the image test of the camera module by performing an image test such as RGB, black spot, white point of the camera module using a color sensor.

Another object of the present invention is to collect the camera modules having completed the point dispensing of the adhesive separately outside the index table to perform main curing for a relatively long time, thereby minimizing the time that the camera module stays on the index table, thereby reducing the test time of the camera module. The present invention provides a camera module test apparatus.

Another object of the present invention is to provide a camera module test apparatus capable of separately collecting and processing camera modules identified as defective in an open short test, focusing, and image test process.

In order to achieve the above object, the camera module inspection apparatus according to the present invention includes an index table rotatably assembled with a lens assembly in a holder, and a camera module having an external terminal mounted therein in a predetermined area and rotated by a predetermined angle. And a round dispensing unit for dispensing an adhesive between the holder and the lens assembly of the camera module after a predetermined angle rotation of the index table, and electrically connected to an external terminal of the camera module after the predetermined angle rotation of the index table. And an open short test unit for testing an open short state of the camera module, and after being rotated by a predetermined angle of the index table, electrically connected to an external terminal of the camera module, and simultaneously rotating the lens assembly in a predetermined direction. Automatic focusing unit to ensure the module has an optimal focusing state; And an image test unit electrically connected to an external terminal of the camera module after a predetermined angle of rotation of the index table and testing whether the image captured by the camera module is within a reference value range by allowing the camera module to capture a chart viewer. And a main curing unit for picking and placing the camera module from the index table and collecting the camera module in a tray and curing the adhesive of the camera module.

Here, the magazine is installed in front of the index table, the magazine having a plurality of trays that accommodate the camera module is seated, at the same time the tray is sequentially supplied from the magazine to one side, the empty magazine out of all trays to one side A loading unit for moving and a magazine installed at the other front of the index table, in which a tray in which a test module is stored is seated, and an unloading unit for supplying a magazine full of trays to one side is further included. Can be.

In addition, a magazine moving block may be further provided between the loading unit and the unloading unit to move the empty magazine of the loading unit to the unloading unit and to move the full magazine of the unloading unit to a predetermined position.

In addition, the loading and unloading unit may include an elevator for moving the magazine in the vertical direction, and a horizontal moving block for moving the elevator a predetermined distance in the horizontal direction.

In addition, a pick-and-place unit may be further provided between the tray and the index table to pick up individual camera modules from the tray and seat them on the index table, and to pick up the camera modules that have been tested and store them in the tray.

The index table may include at least one radiation arm having a body coupled to the rotary motor to rotate in a predetermined direction, a predetermined length extending in the outer circumferential direction of the body, and a mounting block at which the camera module is mounted at the end thereof. Can be.

In addition, the index table rotates by 45 °, and eight radiation arms may be provided.

In addition, between the round dispensing unit and the pick-and-place unit detects the position of the camera module seated on the index table, and transmits the position information of the camera module to the round dispensing unit, the open short test unit, the focusing unit and the image test unit. The position check unit may be further installed.

The position check unit may include an upper XYZ moving block for transferring X, Y, and Z directions from an upper portion of the camera module, and an upper light source block installed at the upper XYZ moving block to provide light to an upper portion of the camera module. And an upper camera block installed on the XYZ moving block above the light source block to photograph the upper image of the camera module.

The position check unit may further include a lower XYZ moving block transferring the X, Y, and Z directions from the lower part of the camera module, and a lower light source block installed in the lower XYZ moving block to provide light to the lower part of the camera module. And a lower camera block installed in the XYZ moving block below the lower light source block to photograph the lower image of the camera module.

In addition, the round dispensing unit is installed on the XYZθ moving block and the XYZθ moving block from the upper portion of the camera module in the X, Y, Z, θ direction, the adhesive is applied to the area between the holder and the lens assembly of the camera module. It may consist of a dispenser for round dispensing.

The open short test unit may be connected to an upper XYZ moving block for transferring in the X, Y, and Z directions from an upper portion of the camera module, and an external terminal formed on the upper XYZ moving block and formed at an upper portion of the camera module. It may be made by including an upper probe block for performing a test.

In addition, the open short test unit is connected to a lower XYZ moving block for transferring in the X, Y, and Z directions from the lower part of the camera module, and an external terminal formed at the lower part of the camera module to open the short XYZ moving block. It may include a lower probe block for performing a test.

In addition, the automatic focusing unit is installed on the XYZθ moving block and the XYZθ moving block to move in the X, Y, Z, θ direction from the top of the camera module, by rotating the lens assembly of the camera module in a predetermined direction, A focusing block for optimizing the focusing of the module and a probing block electrically connected to an external terminal of the camera module.

The focusing block may include a motor and a rotation block coupled to the motor by a belt and rotating in a predetermined direction, and coupled to a lens assembly of the camera module.

In addition, a chart viewer photographed by the camera module may be further installed on the upper portion of the focusing block.

The chart viewer may include an XYZ moving block installed at an upper portion of the camera module and moving in X, Y, and Z directions, and a chart which is coupled to the XYZ moving block and photographed by the camera module.

In addition, one side of the automatic focusing unit may further be provided with an auxiliary focusing unit for moving to the upper portion of the automatic focusing unit to reduce the focus distance of the camera module when the camera module is MEGA class.

In addition, the auxiliary focusing unit is provided in the XYZθ moving block to move in the X, Y, Z, θ direction from the top of the camera module, the macro is installed on the XYZθ moving block is located close to the top of the camera module during the test of the MEGA-class camera module It may be made of a lens block.

In addition, the image test unit is coupled to the XYZ moving block in the X, Y, Z direction from the top of the camera module, and coupled to the XYZ moving block at the same time located on the top of the camera module red, green, blue images and black spots The image block may be provided to provide a white image for searching and a black plate for searching for a white point, and a probing block electrically connected to an external terminal of the camera module.

In addition, the image test unit may be further installed with a color sensor block to obtain an absolute image from the image block.

In addition, a point dispensing unit may be further disposed between the image test unit and the main curing unit to dispense the adhesive in at least one region between the holder of the camera module and the lens assembly.

In addition, the point dispensing unit is installed in the XYθ moving block to move in the X, Y, θ direction from the top of the camera module, an X moving block installed in the XYθ moving block in the X direction, and installed in the X moving block And a dispenser for dispensing an adhesive in at least one region between the holder of the camera module and the lens assembly.

In addition, a point curing unit for curing the adhesive of the camera module for 1 to 10 seconds may be further installed between the point dispensing unit and the main curing unit.

In addition, the point curing unit is installed on the XYZθ moving block and the XYZθ moving block in the X, Y, Z, θ direction from the upper portion of the camera module, the ultraviolet radiation block for emitting ultraviolet rays to the adhesive bonded to the camera module It may be made, including.

In addition, the main curing unit is a reflection block formed with a plurality of holes to expose the holder and lens assembly of the camera module seated on the tray, an ultraviolet block for providing ultraviolet light to the adhesive of the camera module through the hole of the reflection block, and It may be composed of a Z moving block for transferring the reflection block and the ultraviolet block in the Z direction.

In addition, a reflective inclined surface may be formed in the hole of the reflective block to directly inject ultraviolet rays into the adhesive, and a plurality of air holes may be formed inside the reflective block to prevent overheating of the camera module.

In addition, a fail sorting unit may be further installed at the rear of the main curing unit to pick up the camera module determined to be defective during the open short test, automatic focusing, or image test process and to store the camera module in a separate tray.

The fail sorting unit may further include an unloader that picks up a camera module identified as defective from the index table, a lift transfer unit that receives the camera module from the unloader, lowers it, and transfers it in a horizontal direction, and the lift transfer unit. It may include a sorting unit for picking up the camera module and accommodated in the tray.

The unloader may include an XYZ moving block for transporting in the X, Y, and Z directions, and a picker installed at the XYZ moving block and picking up a camera module identified as a defect on the index table and transferring the picked-up camera to the lifting transfer unit. Can be.

In addition, the lifting transfer unit Z moving block for transporting in the Z direction, the adsorption block that is detachably coupled to the Z moving block, and adsorbs the camera module when the camera module is seated by the unloader, and the Z It may include a Y moving block is installed in the lower portion of the moving block to transfer in the Y direction, and the rotary block receiving the suction block by the Y moving block, and rotates the suction block by a predetermined angle.

The sorting unit may include an XZ moving block moving in the XZ direction, a picker coupled to the XZ moving block and picking up a camera module from the lifting transfer unit, and at least one tray to accommodate the camera module by the picker. The lower portion of the tray may include a Y moving block for transferring in the Y direction.

As described above, the camera module inspection apparatus according to the present invention automatically transfers empty magazines in which all of the trays of the loading unit are removed to the unloading unit so that the tray in which the tested camera module is housed is seated, and the operator unloading unit. There is no need to install a separate magazine.

In addition, the present invention is to put the camera module on the rotatable index table, rotate the index table, position check, round dispensing, open short test, focusing, image test, point dispensing, point curing, main curing and By performing all of the fail sorting processes, not only is the test process fast, but also the test process is possible in a small space.

In addition, the present invention does not change the focusing state of the camera module by dispensing by performing an open short test, focusing, image testing after the round dispensing of the adhesive, and point dispensing of the adhesive again.

In addition, according to the present invention, even if the external terminal of the circuit board of the camera module is formed on either side (upper surface or lower surface), the open short test, focusing and image test can be performed immediately without changing the device.

In addition, the present invention can minimize the focusing time of the camera module by learning the optimum rotation angle of the lens assembly during the focusing process of the camera module.

In addition, the present invention can focus the camera module without changing the distance of the image chart viewer, regardless of the type of camera module (VGA class or MEGA).

In addition, the present invention can further refine the image test of the camera module by performing an image test such as RGB, black spot, white point of the camera module using a color sensor.

In addition, the present invention is to collect the camera module completed the point dispensing of the adhesive separately outside the index table to perform the main curing for a relatively long time, thereby minimizing the remaining time of the camera module on the index table to reduce the test time of the camera module as much as possible Can be.

In addition, the present invention has the advantage that can be separately collected and processed camera modules that are identified as defective in the open short test, focusing and image test process.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

Figure 3 is a schematic diagram showing a camera module inspection apparatus according to the present invention, Figure 4 is a plan view showing a camera module inspection apparatus according to the present invention.

As shown, the camera module inspection apparatus (CMS) according to the present invention includes a loading unit 100, an index table 200, a pick and place unit 300, a position check unit 400, a round dispensing unit 500, and an open unit. Short test unit 600, automatic focusing unit 700, image test unit 800, point dispensing unit 900, point curing unit 1000, main curing unit 1100, unloading unit 1200 and fail The sorting unit 1300 is included.

Figure 5a is a front view showing the configuration of the loading and unloading unit of the camera module inspection apparatus according to the present invention, Figure 5b is a front view showing the configuration of the magazine moving block installed between the loading and unloading unit. Here, the configuration and operation of the loading unit, the unloading unit, and the magazine moving block will be described with reference to FIGS. 3 and 4 together with FIGS. 5A and 5B.

As shown, the loading unit 100 is installed at the front left side of the index table 200. The loading unit 100 is capable of raising and lowering the magazine M1 in which the plurality of trays T1 are accommodated in the up and down directions or moving in the horizontal direction. Here, when the loading unit 100 moves the magazine M1 in the horizontal direction (right direction), it is when the trays T1 are all pulled out of the magazine M1. Of course, the camera module 10 to be tested is mounted on the tray T1 inside the magazine M1. In addition, the camera module 10 has an external terminal formed on one side of the circuit board, and the holder and the lens assembly are located on the other side. See FIG. 1 for a detailed configuration of such a camera module. Of course, the holder is assembled to the lens assembly in a rotatable state. The loading unit 100 will be described in more detail. A horizontal moving block 101 capable of moving a predetermined distance in the horizontal direction is installed in an approximately lower region of the apparatus, and the upper and lower horizontal moving blocks 101 are installed on the upper and lower sides of the horizontal moving block 101. An elevator 102 capable of lifting and lowering is provided. Of course, the magazine (M1) is seated on the elevator (102). In addition, a pusher 103 is installed at one side of the loading unit 100 (the left side in front of the drawing) to push the tray T1 from the magazine M1 in the right direction.

Subsequently, the unloading unit 1200 is provided at the front right side of the index table 200. The unloading unit 1200 is also capable of raising and lowering a magazine M2 in which a plurality of trays are accommodated in an up and down direction or moving in a horizontal direction. Here, when the unloading unit 1200 moves the magazine M2 in the horizontal direction (left direction), the tray is filled with the magazine M2. Of course, on the tray inside the magazine (M2) is a good quality camera module has been seated. In detail, the unloading unit 1200 is provided with a horizontal moving block 1201 that is capable of moving a predetermined distance in a horizontal direction in an approximately lower region of the apparatus, and the horizontal moving block 1201 is moved up and down. The elevator 1202 which can be provided is provided. Of course, a magazine M2 is seated on the elevator 1202.

Meanwhile, as shown in FIG. 5B, between the loading unit 100 and the unloading unit 1200, the unloading unit 1200 has an empty magazine M2 from which the tray T1 is completely removed from the loading unit 100. The magazine moving block 105 for moving to is further installed. Of course, a magazine seating die 106 for mounting the magazine M2 is installed on the magazine moving block 105. The magazine moving block 105 serves to transfer the empty magazine M2 to the unloading unit 1200 when all of the trays T1 are removed from the magazine M1 located in the loading unit 100. Do it.

In addition, the magazine moving block 105 also serves to move the magazine M2 full of trays from the unloading unit 1200 to an approximately center (left direction) in front of the apparatus. Therefore, the operator only needs to first take out the magazine M2 from the magazine seating die of the said moving block, after mounting the magazine M1 to the loading part 100 first.

Subsequently, a rail 107 is provided between the loading part 100 and the unloading part 1200, and the trays T2 and T3 are sequentially seated on the rail 107. For example, the tray T2 initially supplied from the magazine M1 and the bin tray T3 placed by the operator may be positioned on the rail 107.

Subsequently, the camera module 10 seated on the tray T2 on the rail is moved to the index table 200 to perform a test process of the actual camera module. The index table 200 has a body 202 coupled to the rotary motor 201 to rotate in a predetermined direction, extends a predetermined length in the outer circumferential direction of the body 202, the camera module (at the end) 10 is formed with a plurality of radiation arms 203 are seated. More specifically, the end of the radiation arm 203 is provided with a mounting block 204 for mounting and adsorption of the camera module 10. Here, as will be described later, through holes are formed in the seating block 204 and the radiation arm 203 corresponding to the external terminals of the camera module 10. Therefore, when the external terminal is formed on the lower surface of the circuit board of the camera module 10, it can be accessed from the bottom through the through hole. In addition, approximately eight radiation arms 203 of the index table 200 are formed, which can rotate by approximately 45 °. Of course, the present invention is not limited to the number and the rotation angle of the radiation arm 203 of the index table 200, which is just one example. In the drawing, reference numeral 205 denotes a support plate on which various structures such as the index table 200 are mounted.

Subsequently, the pick-and-place unit 300 is provided between the rail 107 and the index table 200. The pick-and-place unit 300 serves as a robot having a normal picker and picks up the camera module 10 from the tray T2 located on the rail 107 and seats the index on the index table 200. That is, the pick-and-place unit 300 positions the camera module 10 from the tray T2 to the seating block 204 installed on the radiation arm 203 of the index table 200. In addition, the pick-and-place unit 300 mounts the camera module on which the test process is completed, back to the tray T3 located on the rail from the index table 200.

6A is a side view illustrating a position check unit of the camera module inspecting apparatus according to the present invention, and FIGS. 6B and 6C are photographs showing an example of photographing a lens assembly and an external terminal of the camera module. Here, the configuration and operation of the position check unit will be described with reference to FIGS. 3 and 4 together with FIG. 6A.

As shown, the position of the camera module 10 is photographed between approximately 7 o'clock and 8 o'clock directions of the index table 200, and the position information of the camera module is round-dispensing unit 500 and an open short test unit 600. ), An automatic focusing unit 700, an image test unit 800, a point dispensing unit 900, and a position check unit 400 are transmitted to the point hardening unit 1000. In this manner, the round dispensing unit 500, the open short test unit 600, the auto focusing unit 700, the image test unit 800, the point dispensing unit 900, and the point hardening unit 1000 may include a camera module ( By using the accurate position information of 10), it is possible to perform the correct process.

Meanwhile, since the external terminal of the camera module 10 may be formed on the upper or lower surface of the circuit board, the position check unit 400 may be installed on the upper and lower portions of the support plate 205 on which various structures are installed. have.

The position check unit 400 is installed on the upper side of the support plate 205 to which the various structures such as the index table 200 is fixed, the upper XYZ moving block 401 can be transferred in the X, Y, Z direction from the top of the camera module ), An upper light source block 402 installed in the upper XYZ moving block 401 to provide light on the upper part of the camera module 10, and an upper image of the upper part of the camera module 10 installed on the upper part of the camera module 10. The upper camera block 403 is taken. The XYZ moving block 401 may be an automatic method or a manual method, but the method is not limited thereto. In the figure, reference numeral 404 denotes an X-axis moving handle, for example, 405 denotes a Y-axis moving handle, and 406 denotes a Z-axis moving handle, for example. Since the XYZ moving block 401 including such a handle is a common technique to those skilled in the art, detailed structure and operation description thereof will be omitted herein.

In addition, the support plate 205 is formed with a through hole 207 at a position corresponding to the mounting block 204 installed in the index table 200, so that the camera module 10 can be observed from below. It is. More specifically, the mounting block 204 is formed with a through hole 208 so that the external terminal formed on the lower surface of the circuit board of the camera module 10 is exposed to the bottom, the through hole 208 is a support plate 205 Is communicated with the through-hole 207 formed in ().

A position check unit 400 ′ is formed on the lower surface of the support plate 205 so as to obtain position information of an external terminal (an external terminal formed on the lower surface of the circuit board) of the camera module 10. The position check unit 400 ′ is installed at the lower XYZ moving block 401 ′ which transfers the X, Y, and Z directions from the bottom of the camera module 10, and the lower XYZ moving block 401 ′. A lower light source block 402 ′ that provides light to the lower portion of the camera module 10, and an XYZ moving block 401 ′ below the lower light source block 402 ′, which is disposed below the camera module 10. And a lower camera block 403 'for capturing an image (external terminal).

An example of a camera module photographed by the position checker 400 or 400 ′ is illustrated in FIGS. 6B and 6C. 6B is an example in which the upper image of the lens assembly of the camera module is photographed, and FIG. 6C is an example in which the upper image or the lower image of the external terminal of the camera module is photographed. The position checker 400 or 400 ′ compares the photographed image with the reference image, checks ΔX, ΔY and Δθ of the lens assembly and the external terminal, and compares these values with the round dispensing unit 500 and the open short test. The unit 600, the auto focusing unit 700, the image test unit 800, the point dispensing unit 900, the point hardening unit 1000, and the like are transmitted.

7 is a side view of the round dispensing unit of the camera module inspection apparatus according to the present invention. Here, the configuration and operation of the round dispensing unit will be described with reference to FIGS. 3 and 4 together with FIG. 7.

As illustrated, a round dispensing unit 500 that performs round dispensing on the camera module 10 is installed at approximately 9 o'clock of the index table 200.

The round dispensing unit 500 is installed on the upper surface of the support plate 205 and the XYZθ moving block 501 and movable in the X, Y, Z, θ direction from the top of the camera module, and the XYZθ moving block 501 And a dispenser 502 installed in the dispenser 502 for dispensing the adhesive round in an area between the holder of the camera module 10 and the lens assembly. This dispenser 502 literally serves to dispense the adhesive in the form of a substantially circular ring along the gap between the holder of the camera module 10 and the lens assembly. However, since this adhesive is in a liquid state with some viscosity, the dispensing of such adhesive does not prevent the lens assembly from rotating from the holder. That is, despite this round dispensing of the adhesive, the lenzo assembly easily rotates in a predetermined direction in the focusing process described below. Here, since the XYZθ moving block 501 and the dispenser 502 are conventional techniques for those skilled in the art, detailed structure and operation description thereof will be omitted.

8 is a side view showing an open short test unit of the camera module inspection apparatus according to the present invention. Here, the configuration and operation of the open short test unit will be described with reference to FIGS. 3 and 4 together with FIG. 8.

As shown, an open short test unit 600 for testing an open short state of the camera module 10 is installed between approximately 10 o'clock and 11 o'clock directions of the index table 200. The open short test unit 600 may also be installed on the upper and lower surfaces of the support plate 205, respectively. That is, since the external terminal of the camera module 10 may be formed not only on the upper surface of the circuit board but also on the lower surface of the circuit board in some cases, the open short test unit 600 may also be formed on the upper and lower surfaces of the support plate 205. Each can be formed.

First, the open short test unit 600 formed on the upper surface of the support plate 205 includes an upper XYZ moving block 601 which can be transferred in the X, Y, and Z directions from the top of the camera module 10, and the upper XYZ moving block. The upper probe block 602 is installed at 601 and is connected to an external terminal formed on the top of the camera module 10 to perform an open short test. Here, a plurality of probe pins are formed in the probe block 602, and these probe pins are electrically connected directly to external terminals of the camera module 10.

In addition, the open short test unit 600 ′ formed on the lower surface of the support plate 205 may include a lower XYZ moving block 601 ′ which is transferred from the lower side of the camera module 10 in the X, Y, and Z directions, and the lower portion. The lower probe block 602 'is installed on the XYZ moving block 601' and connected to an external terminal formed under the camera module 10 to perform an open short test.

Here, the XYZ moving blocks 601 and 601 'are ordinary techniques for those skilled in the art, and thus detailed structure and operation description thereof will be omitted.

9A to 9C are plan views, side views, and cross-sectional views showing an auto focusing unit of the camera module inspection apparatus according to the present invention. Here, the configuration and operation of the automatic focusing unit will be described with reference to FIGS. 3 and 4 together with FIGS. 9A to 9C.

As shown, an automatic focusing unit 700 is installed at approximately 12 o'clock of the index table 200 so that the camera module 10 may be in an optimal focusing state.

The automatic focusing unit 700 is installed on the support plate 205 and can move in the X, Y, Z, and θ directions from the top of the camera module 10, and the XYZθ moving block 701 and the XYZθ moving block 701. It is composed of a focusing block 702 installed at the same time coupled to the lens assembly 15 of the camera module 10, by rotating it in a predetermined direction, thereby optimizing the focusing of the camera module 10. Of course, in order to electrically recognize the focusing state of the camera module 10 during such focusing, a probing block 706 electrically connected to an external terminal of the camera module 10 on one side of the automatic focusing unit 700. Is installed. Here, the probing block 706 actually has the same structure as the open short test unit 600 described above, and is also formed under the support plate 205.

In addition, the focusing block 702 is provided with a motor 703, which is coupled to the motor 703 by a belt 704, which is actually coupled to the lens assembly 15 of the camera module 10. A rotating block 705 is provided for rotating the lens assembly 15 in a predetermined direction.

On the other hand, the automatic focusing unit 700 is given a learning function in order to minimize the focusing time of the camera module 10. That is, the auto focusing unit 700 stores the rotation angle of the lens assembly 15 corresponding to the optimized focusing state of the first loaded camera module 10. In other words, when the lens assembly 15 is rotated in the loaded camera module 10, the information on the optimized focusing state is stored. Then, when the next camera module 10 is loaded, the lens assembly 15 is rotated according to the previously stored information as described above to observe the focusing state. That is, instead of checking the focusing state by gradually increasing the lens assembly by a predetermined angle in the camera module loaded every time, it is determined that the focusing state of the camera module is optimal by rotating the lens assembly at a time by the previously optimized value. do.

FIG. 10A is a side view illustrating a chart viewer installed at an upper portion of an automatic focusing unit of the camera module inspecting apparatus according to the present invention. FIG. 10B is a partial plan view illustrating an example of a chart installed in the chart viewer. It is an image showing the various states of the chart taken by.

As shown in the drawing, a chart viewer 710 photographed by the camera module 10 is further installed at the upper portion of the focusing block 702 to focus the camera module 10. This chart viewer 710 is not shown in FIG. 4.

As shown in FIG. 10A, the chart viewer 710 is mounted on the camera module 10 and is coupled to the XYZ moving block 711 and the XYZ moving block 711 to transfer in the X, Y, and Z directions. At the same time, the chart 712 is taken by the camera module 10. Various charts, letters, or patterns for optimizing the focusing state of the camera module 10 may be drawn on the chart 712. For example, as illustrated in FIG. 10B, a chart in which a plurality of lines are radially formed may be illustrated in the chart 712. The camera module 10 photographing the chart 712 photographs various shapes according to the rotation of the lens assembly 15 as shown in FIG. 10C. In the figure, it can be seen that the picture of the chart 712 is most clearly displayed when the focal length of the camera module 10 is 88.38. Accordingly, the present invention will stop the rotation of the lens assembly in the region indicated by the focusing distance 88.38 in FIG. 10C shown.

11A and 11B are a plan view and a side view of the auxiliary focusing unit of the camera module inspection apparatus according to the present invention.

As shown in the drawing, the auto focusing unit 700 moves to an upper portion of the auto focusing unit 700 when the camera module 10 is in the MEGA class to reduce the focal length of the camera module 10. 720 is further installed. That is, the focal lengths of the camera modules of the VGA class and the MEGA class are different. However, the auxiliary focusing unit 720 as described above narrows the focus distance of the camera module of the MEGA class by the focus distance of the camera module of the VGA class. Therefore, it is not necessary to adjust the distance of the chart viewer 710 described above because the camera module of the MEGA class is loaded.

The auxiliary focusing unit 720 is provided with an XYZθ moving block 721 that can be transferred to the support plate 205 in the X, Y, Z, and θ directions from the top of the camera module 10. In addition, the XYZθ moving block 721 is provided with a macro lens block 722 to be positioned above the camera module when the MEGA camera module is tested. Of course, the macro lens block 722 is located in an area spaced a predetermined distance from the rotation block 705 in the test of the camera module of the VGA class. However, when the MEGA camera module is tested as described above, the macro lens block 722 is positioned above the rotation block 705. The macro lens block 722 does not need to change the distance of the chart viewer 710 even when the MEGA camera module is tested.

12A and 12B are plan and side views illustrating an image test unit of a camera module inspecting apparatus according to the present invention, FIG. 12C is an RGB image photographed by a camera module, and FIG. 12D is a white image for finding black spots. 12e is a black image to find the white spot.

As illustrated in FIGS. 12A and 12B, an image test unit 800 is installed between approximately 1 o'clock and 2 o'clock directions of the index table 200. The image test unit 800 is installed on the support plate 205 and the XYZ moving block 801 that can be transferred in the X, Y, Z direction from the top of the camera module, and the XYZ moving block 801 is installed on the camera module An image block 802 is provided at the top of 10 to provide a red, green, blue image and a white image for finding black spots, and to provide a black plate for finding a white spot. In addition, the support plate 205 is further provided with a probing block 803 to be electrically connected to the external terminal of the camera module 10. Of course, the probing block 803 may also be formed on the lower surface of the support plate 205, the probing block 803 has substantially the same structure as the open short test unit 600.

Meanwhile, a color sensor block 804 for obtaining an absolute image from the image block 802 may be further installed below the image test unit 800. Since the color sensor block 804 can obtain an absolute image value from the image block 802, the image test of the camera module 10 can be further refined.

Here, the image block 802 is provided with an RGB image as shown in FIG. 12C, and also a white image for finding black spots as shown in FIG. 12D, and a white point as shown in FIG. 12E. A black image is also provided for searching. Of course, each such image is photographed by the camera module 10, and the photographed value is compared with a value already determined as a reference value, thereby determining whether or not the camera module normally photographs the image.

13 is a side view showing a point dispensing unit of the camera module inspection apparatus according to the present invention. Reference will be made to FIGS. 3 and 4 together.

As shown, a point dispensing unit 900 is installed at approximately 3 o'clock of the index table 200. The point dispensing unit 900 serves to dispense adhesive in at least one region between the holder 14 of the camera module 10 and the lens assembly 15. That is, since the point dispensing unit 900 is in a state where the focus of the camera module 10 is focused in the automatic focusing unit 700, the point dispensing unit 900 minimizes contact between the lens assembly 14 and the dispenser 903. Perform fencing Of course, since the adhesive is dispensed in a round form between the lens assembly 14 and the holder 15 in the above-described round dispensing unit 500, the coupling force between the lens assembly 14 and the holder 15 is lowered. It doesn't work.

The point dispensing unit 900 is installed on the upper surface of the support plate 205 and can be moved in the X, Y, and θ directions from the top of the camera module 10, and the XYθ moving block (901). An X moving block 902 installed in the 901 and moving in the X direction, and an adhesive disposed between the holder 14 of the camera module 10 and the lens assembly 15 at least in the X moving block 902. It consists of a dispenser 903 that dispenses in one area.

14 is a side view showing a point curing unit of the camera module inspection apparatus according to the present invention. Reference is also made to FIGS. 3 and 4 together.

As shown in the drawing, between the 3 o'clock and 4 o'clock directions of the index table 200, a point hardening unit 1000 for lowering the adhesive in the camera module 10 for about 1 to 10 seconds is provided. Such a point curing unit 1000 by temporarily curing the adhesive of the camera module 10, thereby unloading the camera module 10 by the pick-and-place unit 300 (that is, the camera module 10) In the process of moving from the index table 200 to the tray T3 on the rail), the focusing state is prevented from changing.

The point hardening unit 1000 is installed on the upper surface of the support plate 205 and is provided on the XYZθ moving block 1001 and the XYZθ moving block 1001 that can be transferred in the X, Y, Z, and θ directions from the top of the camera module. Installed is made of an ultraviolet radiation block 1002 for emitting ultraviolet light to the adhesive bonded to the camera module (10). The ultraviolet radiation block 1002 is rotatable a predetermined angle so that the camera module 10 can be easily transferred to the fail sorting unit 1300 when the fail sorting unit 1300 is operated. That is, when the camera module 10 is defective, the ultraviolet radiation block 1002 does not operate but is located in an area spaced a predetermined distance from the camera module 10.

FIG. 15A is a side cross-sectional view illustrating a main hardened part of the camera module inspecting apparatus according to the present invention, and FIG. 15B is an enlarged cross-sectional view of the main part of FIG. Reference is also made to FIGS. 3 and 4 together.

As shown, the main hardening part 1100 is installed between the loading part 100 and the unloading part 1200 as the front of the index table 200. That is, the main curing unit 1100 is installed on the upper rail 107 between the loading unit 100 and the unloading unit 1200 to move the tray (T4).

The main curing unit 1100 is installed on the support plate 205, the Z moving block 1101 to transfer in the Z direction, and the UV block coupled to the Z moving block 1101 to provide ultraviolet light to the camera module 10. 1102 and a reflection block 1103 installed at a lower end of the ultraviolet block 1102 to fix the plurality of camera modules 10 and to reflect ultraviolet rays.

In this case, the reflective block 1103 is formed to be approximately the size of the tray T4, and the hole 1104 is exposed so that the lens assembly 15 of the camera module 10 seated on the tray T4 is exposed upward. ) Is formed. In addition, a reflective inclined surface 1105 is formed in the hole 1104, and ultraviolet rays are efficiently incident on the adhesive 16 between the lens assembly 15 and the holder 14 by the reflective inclined surface 1105. That is, without the reflective inclined surface 1105, the UV incident efficiency to the adhesive 16 will not be very good. In addition, a plurality of air holes 1106 are formed in the reflective block 1103 so that overheat is not transmitted to the camera module 10. That is, the heat of the reflective block 1103 is quickly discharged to the outside by the air hole 1106. Further, a fan 1107 is formed at an approximately upper portion of the ultraviolet block 1102 so that heat from the reflective block 1103 or the like quickly escapes to the outside. Here, for example, chromium or the like is plated on the reflective inclined surface 1105 of the reflective block 1103.

Meanwhile, the tray T4 in which the camera module 10, which has been completely cured through the main curing unit 1100, is accommodated is removed from the unloading unit 1200, and the magazine located in the unloading unit 1200. The tray T4 is stored in M2 in sequence. Since the configuration and operation of the unloading unit 1200 have been described with the loading unit 100 above, the structure and operation thereof will be described herein.

Figure 16a is a side view showing the unloader of the fail sorting unit of the camera module inspection apparatus according to the present invention, Figure 16b is a front view showing the lift transfer unit, Figure 16c is a front view showing the sorting unit. Reference is also made to FIGS. 3 and 4 together.

As illustrated, a fail sorting unit may be disposed on an approximately right side of the index table 200 to pick up a camera module that is determined to be defective during the open short test, auto focusing, or image test process and store the same in a separate tray T5. 1300 is installed.

The fail sorting unit 1300 receives the camera module from the unloader 1310 and the unloader 1310 which are largely picked up from the index table 200, and then lowers a predetermined height. Lifting transfer unit 1320 for transporting it in the horizontal direction, and the sorting unit 1330 for picking up again the camera module on the lift transfer unit 1320 is accommodated in the tray (T5).

First, the unloader 1310 is installed on the support plate 205 between the point dispensing unit 900 and the point curing unit 1000, and picks up a defective camera module located in the point curing unit 1000. Do it. That is, the bad camera module is transferred to the fail sorting unit 1300 by the unloader 1310 without being cured by the point curing unit 1000.

The unloader 1310 is installed on the XYZ moving block 1311 and the index table provided in the XYZ moving block 1311 so as to be transportable in the X, Y, and Z directions on the support plate 205 as shown in FIG. 16A. The picker camera 1212 picks up the camera module identified as defective and transfers it to the lifting transfer unit 1320.

Subsequently, the lift transfer unit 1320 is installed at the bottom of the support plate 205 as shown in FIG. 16B. The lifting transfer unit 1320 is detachably coupled to the Z moving block 1321 and the Z moving block 1321 that can be transferred in the Z direction, and when the camera module picked up by the unloader 1310 is seated. Adsorption block 1322 for adsorbing the camera module, Y moving block 1323 installed in the lower portion of the Z moving block 1321 and moving in the Y direction, and adsorption block 1322 from the Z moving block 1321. ) And a rotating block 1324 for rotating the suction block 1322 by a predetermined angle. Here, the rotation block 1324 as described above is for sorting the defective camera module in a correct direction to the tray T5 of the sorting unit 1330 by rotating the defective camera module at a predetermined angle.

Finally, the sorting unit 1330 is formed under the support plate 205 as shown in FIG. 16C. The sorting unit 1330 is coupled to the XZ moving block 1331 and the XZ moving block 1331 to transfer in the XZ direction, and picks up the camera module from the lifting transfer unit 1320 (adsorption block 1322). A picker 1332, a tray seating die 1333 in which at least one tray T5 is positioned so that the camera module is accommodated by the picker 1332, and a lower surface of the tray seating die 1333 and formed in the Y direction. It consists of a Y moving block 1334 that can be transferred to. As described above, the defective camera module is seated on the predetermined area of the tray T5 by the picker 1332.

Hereinafter, an operation state of the camera module inspection apparatus (CMS) according to the present invention having the above configuration will be described. Here, the camera module will be described with an external terminal formed on the upper surface of the circuit board as an example, and all the drawings of FIGS. 3 to 16C will be referred to. In addition, the camera module is basically VGA class.

First, as shown in FIGS. 3, 4, 5A, and 5B, a single tray T2 is provided on the rail 107 from the loading unit 100. Of course, a plurality of camera modules 10 are seated on the tray T2, and the camera module 10 is rotatably coupled to the lens assembly to the holder.

More specifically, the magazine M1 is seated on the elevator 102 of the loading unit 100 by the operator. Then, the elevator 102 rises a predetermined height, and then the individual trays T1 are moved from the magazine M1 onto the rails 107 by the pusher 103. In this case, an empty tray T3 may be positioned on the rail 107 in advance, and the camera module, in which the test process is completed, is picked up from the index table 200 by the pick-and-place unit 300 in the empty tray T3. Transferred. In this case, the tray which is pulled out of the magazine M1 and positioned on the rail 107 is newly defined as T2 to avoid confusion.

In addition, when all the trays T1 are pulled out from the magazine M1 on the rails 107, the magazine moving block 105 operates to unload the empty magazine M2. 1200). Again, to avoid confusion, the empty magazine is newly defined as M2.

Subsequently, when the tray T2 is seated on the rail 107, the pick-and-place unit 300 operates. That is, the pick-place unit picks up one camera module 10 from the tray T2 and places it on the index table 200. That is, the camera module 10 is seated on the radiation arm 203 formed at approximately 6 o'clock in the index table 200. More specifically, the pick and place unit 300 mounts the camera module 10 on the seating block 204 fixed to the radiation arm 203 thereon. Then, the bottom of the seating block 204 is operated so that the camera module 10 is firmly fixed to the seating block 204.

Subsequently, the index table 200 rotates approximately 45 ° clockwise from the initial position by the operation of the motor 201. That is, the index table 200 positions the radiation arm 203 between approximately 7 o'clock and 8 o'clock directions. Of course, the pick-and-place unit 300 seats the other camera module 10 from the tray T2 on the rail 107 to the following radiation arm.

A position check unit 400 is provided in a direction between approximately seven and eight o'clock of the index table 200 as shown in FIGS. 4 and 6. The position check unit 400 is a round dispensing unit 500 and an open short test unit 600 to photograph the camera module 10 and perform image information (ΔX, ΔY, Δθ information of the lens assembly and the external terminal). ), The automatic focusing unit 700, the image test unit 800, the point dispensing unit 900, and the point hardening unit 1000.

The position check unit 400 properly moves the XYZ moving block 401 so that the light source block 402 and the camera block 403 are positioned above the camera module 10. The camera block 403 then photographs the lens assembly and external terminals of the camera module 10. Images of the lens assembly and the external terminal photographed as described above are illustrated in FIGS. 6B and 6C.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located at approximately 9 o'clock.

Then, the round dispensing unit 500 illustrated in FIGS. 4 and 7 operates. Of course, since the round dispensing unit 500 has received the position information of the camera module 10 from the position check unit 400, the round dispensing unit 500 knows the position of the camera module 10 to be round dispensed. The round dispensing unit 500 moves the dispenser 502 to a position for round dispensing by moving the XYZθ moving block 501 properly. The dispenser 502 then dispenses the adhesive round one or several turns between the lens assembly 15 and the holder 14 of the camera module 10. Of course, the round dispensing unit 500 returns to the initial position after the round dispensing.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located between approximately 10 o'clock and 11 o'clock directions.

Then, the open short test unit 600 illustrated in FIGS. 4 and 8 operates. Of course, since the open short test unit 600 has received the position information of the camera module 10 from the position check unit 400, the open short test unit 600 knows the position of the camera module 10 to be open short test accurately. .

The open short test unit 600 properly moves the XYZ moving block 601 so that the probe block 602 coupled thereto is electrically connected to an external terminal 17 of the camera module 10. In this state, the open short test unit 600 transmits a predetermined electrical signal to the camera module 10 through the probe block 602, and analyzes the electrical signal transmitted from the camera module 10 again, thereby providing the camera module 10. Check if (10) operates normally. After such confirmation, if it is determined that the camera module 10 does not operate normally, the automatic focusing unit 700, the image testing unit 800, and the point dispensing unit 700 may provide information indicating that the camera module 10 is defective. 900, the point hardening unit 1000, and the fail sorting unit 1300. Of course, the automatic focusing unit 700, the image testing unit 800, the point dispensing unit 900, and the point hardening unit 1000 do not operate with respect to such a defective camera module, but the fail sorting unit 1300 does not operate. Is operated to collect the defective camera module in a separate tray T5.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located between approximately 12 o'clock.

Subsequently, the auto focusing unit 700 shown in Figs. 4, 9A and 9B is operated. Of course, since the automatic focusing unit 700 has received the position information of the camera module 10 from the position checker 400, the automatic focusing unit 700 knows the position of the camera module 10 to be focused accurately.

The auto focusing unit 700 properly moves the XYZθ moving block 701 so that the focusing block 702 coupled thereto is coupled to the lens assembly 15 of the camera module 10. That is, the rotation block 705 constituting the focusing block 702 is coupled to the lens assembly 15 of the camera module 10. Of course, at this time, the probing block 803 having the same configuration as that of the open short test unit 600 is connected to the external terminal 17 of the camera module 10. In this state, the motor 703 constituting the focusing block 702 rotates, thereby rotating the rotation block 705 in a predetermined direction to find an optimal focusing state of the camera module 10. In addition, the camera module 10 captures the chart 712, which is one component of the chart viewer 710 as shown in FIG. 10, to find the optimal focusing.

Here, the automatic focusing unit 700 is provided with a learning function, so that the camera module 10 to be loaded next can find the optimal focusing state more quickly. That is, in the first loaded camera module 10, the rotation angle of the lens assembly 15 is gradually changed to find the optimum focusing state. Of course, when the optimal focusing state is found, the rotation angle with respect to the lens assembly 15 at this time is stored. Then, the second loaded camera module slowly changes the rotational angle of the lens assembly as above and finds the optimal focusing state, but rotates the lens assembly at a time by the rotational angle previously remembered, whereby It is determined whether the focusing state is optimal. As a result of the above determination, if the focusing state of the camera module is optimal, the next step is prepared. Otherwise, the lens assembly is slowly rotated again to find the optimal focusing state. Of course, it is stored at a rotation angle corresponding to the optimum focusing state of the found lens assembly. Of course, if the focusing of the camera module is not properly understood despite the focusing operation as described above, it is determined as a bad camera module and transmits such information to the fail sorting unit 1300.

On the other hand, when the MEGA camera module other than the VGA class is loaded in the index table 200, the auxiliary focusing unit 720 illustrated in FIGS. 11A and 11B is operated in advance. That is, the auxiliary focusing unit 720 is operated in advance so that the focusing distance from the MEGA camera module to the chart 712 is reduced. In other words, the chart viewer 710 does not work. In more detail, by operating the XYZθ moving block 721, the macro lens block 722 is positioned above the MEGA camera module. When the macro lens block 722 is positioned above the MEGA camera module, the focusing distance from the MEGA camera module to the chart 712 does not change, and thus the chart 712 does not need to be moved.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located between approximately 1 o'clock and 2 o'clock directions.

Subsequently, the image test unit 800 illustrated in FIGS. 4, 12A, and 12B operates. Of course, since the image test unit 800 has received the position information of the camera module 10 from the position check unit 400, the image test unit 800 knows the position of the camera module 10 to be image-tested correctly.

The image test unit 800 properly moves the XYZ moving block 801 so that the image block 802 is positioned above the camera module 10. Of course, at this time, the probing block 803 having the same configuration as that of the open short test unit 600 is connected to an external terminal of the camera module 10. In this state, the image block 802 provides a white light for finding red, green, blue, and black spots. Of course, black is also used to find the white spot. In this way, the image test unit 800 determines whether the camera module correctly recognizes red, green, blue, black and white points. In addition, when the color sensor block 804 is adopted, the image test unit 800 determines whether a value recognized by the color sensor block 804 and a value recognized by the camera module are within a predetermined range. Of course, when the camera module does not correctly recognize red, green, blue, black or white spots, the camera module determines that the camera module is a bad camera module and transmits the information to the fail sorting unit 1300.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located between approximately 3 o'clock.

Subsequently, the point dispensing unit 900 illustrated in FIGS. 4 and 13 operates. Of course, since the point dispensing unit 900 has received the position information of the camera module 10 from the position checker 400, the point dispensing unit 900 is in a state in which the point dispensing unit 900 correctly knows the position of the camera module 10 to be dispensed.

More specifically, the XYθ moving block 901 and the X moving block 902 are properly moved so that the dispenser 903 is located in any area of the camera module 10 between the lens assembly 15 and the holder 14. . In this state, the dispenser 903 is used to dispense the adhesive into at least one region of the camera module between the lens assembly and the holder. The reason for dispensing the point without round dispensing of the adhesive as described above is to prevent the position of the lens assembly 15 from being changed by contact between the dispenser 903 and the lens assembly 15 during dispensing. That is, the rotation angle of the lens assembly 15 is already optimized by the above automatic focusing process, because if the rotation angle of the lens assembly 15 changes, the focusing state also changes.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located between approximately 4 o'clock and 5 o'clock directions.

Subsequently, the point curing unit 1000 shown in FIGS. 4 and 14 operates. Of course, since the point curing unit 1000 has received the position information of the camera module 10 from the position check unit 400, the point curing unit 1000 knows exactly the position of the camera module 10 to be point cured.

The point curing unit 1000 properly moves the XYZθ moving block 1001 so that the ultraviolet radiation block 1002 is positioned above the camera module 10. In this state, the ultraviolet radiation block 1002 operates so that the adhesive of the camera module 10 is cured. The curing time of the adhesive is provided by about 1 to 10 seconds, so that the focusing state does not change when the camera module 10 is accommodated in the tray T3 by the operation of the pick and place unit 300 described later. Of course, the tray T3 is still positioned on the rail 107.

Subsequently, the index table 200 further rotates 45 ° clockwise again by the operation of the motor 201. Then, the radiation arm 203 of the index table 200 is located at approximately 6 o'clock. Of course, the radiation arm 203 is moved to the tray T3 by the pick-and-place unit 300 of the camera module 10 in which the test process is completed. Therefore, the new camera module 10 is seated on the radiation arm 203 again from the tray T2 by the operation of the pick and place unit 300, and the above process is repeated.

On the other hand, when the camera module 10 is filled in the tray T3 located on the right side of the rail 107, the tray T3 is the main curing unit 1100 as shown in Figs. 4, 15A and 15B. Is moved to). That is, when the pusher 103 of the loading unit 100 moves another tray T1 back to the upper rail, the tray T3 on which the camera module 10 on which the test process is completed is seated is the main curing unit 1100. As it slides naturally. Thus, the tray moved to the main hardening part 1100 is defined by reference numeral T4.

Then, after the main curing unit 1100 is properly moved by the Z moving block 1101, the ultraviolet block 1102 is lowered so that the adhesive of the camera module 10 seated on the tray T4 is completely cured. do. In this case, the reflective block 1103 is positioned on the tray T4, and the holder 14 and the lens assembly 15 of the camera module 10 are formed by the reflective inclined surface 1105 formed in the reflective block 1103. The adhesive 16 in between hardens more efficiently. Of course, the heat generated by the ultraviolet block 1102 by the operation of the air hole 1106 formed in the reflective block 1103 and the fan 1107 located thereon is quickly discharged to the outside of the main curing unit 1100. .

Meanwhile, after the operation of the main curing unit 1100 as described above, another tray T1 is moved onto the rail 107 by the loading unit 100, so that the tray T4 of the main curing unit 1100 is It is naturally seated in the magazine (M2) of the unloading unit 1200.

When the magazine M2 of the unloading unit 1200 is filled with the tray T4 as described above, the magazine moving block 105 is operated as shown in FIG. 5B, whereby the magazine of the unloading unit 1200 is operated. M2 is moved to a position approximately between the loading part 100 and the unloading part 1200. Then, the magazine M2 is moved out of the apparatus by the operator.

Up to now, after the good camera module 10 is moved to the loading table 100 from the index table 200, passes through a predetermined process on the index table 200, and is unloaded to the unloading unit 1200. Explained. However, the camera module 10 may be identified as defective on the index table 200. That is, the camera module 10 may be identified as defective in the open short test unit 600, the auto focusing unit 700, and the image test unit 800. The camera module identified as defective is moved to the fail sorting unit 1300 instead of being transferred to the unloading unit 1200. To this end, the fail sorting unit 1300 installed on the right side of the index table 200 operates.

More specifically, when the radiation arm 203 of the index table 200 is positioned between approximately 4 o'clock and 5 o'clock directions, the bad camera module 10 may fail sorting instead of operating the point hardening unit 1000. The unit 1300 is operated.

First, as shown in FIGS. 4 and 16A, the unloader 1310, which is a component of the fail sorting unit 1300, operates. That is, the XYZ moving block 1311 moves properly so that the picker 1312 installed in the XYZ moving block 1311 is positioned above the bad camera module 10 positioned above the radiation arm 203 of the index table 200. do. The picker 1312 then operates to pick up the camera module 10. The picker 1312 then seats the camera module 10 on the adsorption block 1322 of the lift transfer unit 1320.

That is, as shown in FIG. 4 and FIG. 16B, the unloader 1310 mounts the camera module 10 on the lift transfer unit 1320, which is a component of the fail sorting unit 1300. More specifically, the Z moving block 1321 moves to the top, so that the adsorption block 1322 coupled thereto is also located on the top. Then, the picker 1312 of the unloader 1310 described above seats the bad camera module 10 on the suction block 1322. Subsequently, the Z moving block 1321 falls again a predetermined distance, and seats the suction block 1322 on the rotating block 1324 on the Y moving block 1323. Then, the Y moving block 1323 moves a predetermined distance in the X direction, and rotates the rotating block 1324 a predetermined angle so that the suction block 1322 on the rotating block 1324 also rotates a predetermined angle. The camera module 10 is rotated by a predetermined angle.

Subsequently, as illustrated in FIGS. 4 and 16C, the sorting unit 1330, which is a component of the fail sorting unit 1300, is operated. That is, the XZ moving block 1331 constituting the sorting unit 1330 moves in a predetermined direction, thereby picking up the defective camera module on the rotation block 1324, that is, the suction block 1322, to the picker 1332. Then, after moving the XZ moving block 1331 again a predetermined distance, the bad camera module 10 is seated on the Y moving block 1334, that is, the tray T5 located on the tray mounting die 1333. . Of course, the tray T5 also moves to a predetermined position by the operation of the Y moving block 1334. In this manner, the present invention simplifies the processing of the defective camera module 10 by placing the defective camera module 10 in the tray T5 of the fail sorting unit 1300 collectively.

As described above, the camera module inspection apparatus according to the present invention automatically transfers empty magazines in which all of the trays of the loading unit are removed to the unloading unit so that the tray in which the tested camera module is housed is seated, and the operator unloading unit. There is no need to install a separate magazine.

In addition, the present invention is to put the camera module on the rotatable index table, rotate the index table, position check, round dispensing, open short test, focusing, image test, point dispensing, point curing, main curing and By performing all of the fail sorting processes, not only is the test process fast, but also the test process is possible in a small space.

In addition, the present invention does not change the focusing state of the camera module by dispensing by performing an open short test, focusing, image testing after the round dispensing of the adhesive, and point dispensing of the adhesive again.

In addition, according to the present invention, even if the external terminal of the circuit board of the camera module is formed on either side (upper surface or lower surface), the open short test, focusing and image test can be performed immediately without changing the device.

In addition, the present invention can reduce the focusing time of the camera module as much as possible by learning the optimum rotation angle of the lens assembly during the focusing process of the camera module.

In addition, the present invention can focus the camera module without changing the distance of the image chart viewer, regardless of the type of camera module (VGA class or MEGA).

In addition, the present invention can further refine the image test of the camera module by performing an image test such as RGB, black spot, white point of the camera module using a color sensor.

In addition, the present invention is to collect the camera module completed the point dispensing of the adhesive separately outside the index table to perform the main curing for a relatively long time, thereby minimizing the remaining time of the camera module on the index table to reduce the test time of the camera module as much as possible Can be.

In addition, the present invention has the advantage that can be separately collected and processed camera modules that are identified as defective in the open short test, focusing and image test process.

What has been described above is only one embodiment for implementing the camera module inspection apparatus according to the present invention, the present invention is not limited to the above-described embodiment, the subject matter of the present invention as claimed in the following claims Without departing from the technical spirit of the present invention to the extent that any person of ordinary skill in the art to which the present invention pertains various modifications can be made.

Claims (32)

An index table rotatably assembled to the holder, and having a camera module having an external terminal seated therein, the index table being rotated by a predetermined angle; A round dispensing unit configured to round dispense an adhesive between a holder of the camera module and a lens assembly after a predetermined angle of rotation of the index table; An open short test unit electrically connected to an external terminal of the camera module after a predetermined angle of rotation of the index table to test an open short state of the camera module; An automatic focusing unit which is electrically connected to an external terminal of the camera module after a predetermined angle of rotation of the index table and rotates the lens assembly in a predetermined direction so that the camera module has an optimal focusing state; An image test unit electrically connected to an external terminal of the camera module after a predetermined angle of rotation of the index table and testing whether the image captured by the camera module is within a reference value range by causing the camera module to photograph a chart viewer; And collecting the camera module from the index table and collecting the camera module in a tray, and then hardening the adhesive of the camera module. The bin of claim 1, wherein a magazine having a plurality of trays in which a camera module is accommodated is seated in front of the index table, and at the same time a tray is sequentially supplied from the magazine to one side and all the trays are removed. Magazine is a loading unit for moving to one side; And, The magazine is installed in the other front of the index table, the magazine is seated on which the tray containing the tested camera module is seated, and the magazine filled with the tray further includes an unloading unit for supplying to one side again. Module inspection device. According to claim 2, Between the loading unit and the unloading unit, the magazine moving block for moving the empty magazine of the loading unit to the unloading unit, while moving the full magazine of the unloading unit to a predetermined position is further installed. Camera module inspection device. The method of claim 2, wherein the loading and unloading unit An elevator for moving the magazine in an up and down direction; And, Camera moving inspection device comprising a horizontal moving block for moving the elevator a predetermined distance in the horizontal direction. According to claim 2, Between the tray and the index table pick-up camera module from the tray is seated on the index table, the pick-and-place unit for picking up the tested camera module and stored in the tray is further installed Camera module inspection device, characterized in that. The method of claim 1, wherein the index table A body coupled to the rotary motor to rotate in a predetermined direction; And, The camera module inspection apparatus, characterized in that it comprises at least one radiation arm extending a predetermined length in the outer circumferential direction of the body, the mounting block is installed at the end is seated to the camera module. 7. The camera module inspection apparatus according to claim 6, wherein the index table is rotated by 45 ° and eight radiation arms are provided. The method of claim 2, wherein the position of the camera module seated on the index table is detected between the round dispensing unit and the pick-and-place unit, and the position information of the camera module is determined by the round dispensing unit, the open short test unit, the focusing unit, and the image test. Camera module inspection apparatus, characterized in that the position check unit for transmitting to the unit further installed. The method of claim 8, wherein the position check unit An upper XYZ moving block moving in the X, Y, and Z directions from the top of the camera module; An upper light source block installed in the upper XYZ moving block to provide light to an upper portion of the camera module; And, And an upper camera block installed on the XYZ moving block above the light source block to photograph the upper image of the camera module. The method of claim 8, wherein the position check unit A lower XYZ moving block transferring the X, Y, and Z directions from the bottom of the camera module; A lower light source block installed in the lower XYZ moving block to provide light to the lower portion of the camera module; And, And a lower camera block installed on the XYZ moving block below the lower light source block to capture a lower image of the camera module. The method of claim 1, wherein the round dispensing unit An XYZθ moving block moving in an X, Y, Z, θ direction from the top of the camera module; And, And a dispenser installed at the XYZθ moving block and dispensing the adhesive in an area between the holder of the camera module and the lens assembly. The method of claim 1, wherein the open short test unit An upper XYZ moving block moving in the X, Y, and Z directions from the top of the camera module; And, And an upper probe block installed on the upper XYZ moving block and connected to an external terminal formed on the upper portion of the camera module to perform an open short test. The method of claim 1, wherein the open short test unit A lower XYZ moving block transferring the X, Y, and Z directions from the bottom of the camera module; And, And a lower probe block installed in the lower XYZ moving block and connected to an external terminal formed under the camera module to perform an open short test. The method of claim 1, wherein the automatic focusing unit An XYZθ moving block moving in an X, Y, Z, θ direction from the top of the camera module; A focusing block installed in the XYZθ moving block to rotate the lens assembly of the camera module in a predetermined direction so that the focusing of the camera module is optimized; And, And a probing block electrically connected to an external terminal of the camera module. The method of claim 14, wherein the focusing block motor; The camera module inspection apparatus, characterized in that made of a rotating block coupled to the motor by a belt and rotates in a predetermined direction, and coupled to the lens assembly of the camera module. 15. The apparatus of claim 14, wherein a chart viewer photographed by the camera module is further installed on the focusing block to focus the camera module. The method of claim 16, wherein the chart viewer An XYZ moving block installed on the camera module and moving in the X, Y, and Z directions; And, And a chart which is coupled to the XYZ moving block and simultaneously taken by the camera module. The apparatus of claim 1, wherein an auxiliary focusing unit is further installed at one side of the automatic focusing unit to reduce the focal length of the camera module by moving to an upper portion of the automatic focusing unit when the camera module is MEGA. The method of claim 18, wherein the auxiliary focusing unit An XYZθ moving block moving in the X, Y, Z, and θ directions from the top of the camera module; And, The camera module inspection apparatus, characterized in that formed in the XYZθ moving block made of a macro lens block located on the upper portion of the camera module during the test of the MEGA-class camera module. The method of claim 1, wherein the image test unit An XYZ moving block moving in the X, Y, and Z directions from the top of the camera module; An image block coupled to the XYZ moving block and simultaneously positioned on top of the camera module to provide a red, green, blue image, and a white image for finding a black spot, and a black plate for finding a white spot; And, And a probing block electrically connected to an external terminal of the camera module. The camera module inspection apparatus of claim 1, wherein the image test unit further includes a color sensor block to obtain an absolute image from the image block. The method of claim 1, wherein the image test unit and the main curing unit between And a point dispensing unit for dispensing an adhesive in at least one area between the holder of the camera module and the lens assembly. The method of claim 22, wherein the point dispensing unit An XYθ moving block moving in an X, Y, θ direction from the top of the camera module; An X moving block installed in the XYθ moving block and moving in the X direction; And, And a dispenser installed at the X moving block to dispense an adhesive in at least one region between the holder of the camera module and the lens assembly. 23. The camera module inspection apparatus according to claim 22, further comprising a point curing unit for curing the adhesive of the camera module for 1 to 10 seconds between the point dispensing unit and the main curing unit. The method of claim 24, wherein the point cured portion An XYZθ moving block moving in an X, Y, Z, θ direction from the top of the camera module; And, Installed in the XYZθ moving block, the camera module inspection apparatus comprising an ultraviolet radiation block for emitting ultraviolet rays to the adhesive bonded to the camera module. The display apparatus of claim 1, wherein the main curing unit comprises: a reflective block having a plurality of holes formed to expose the holder and the lens assembly of the camera module seated on the tray; An ultraviolet block for providing ultraviolet rays to the adhesive of the camera module through the holes of the reflective blocks; And, Camera module inspection apparatus, characterized in that made of a Z moving block for transferring the reflection block and the ultraviolet block in the Z direction. The camera of claim 26, wherein a reflective inclined surface is formed in the hole of the reflective block to directly inject ultraviolet rays into the adhesive, and a plurality of air holes are formed inside the reflective block to prevent overheating of the camera module. Module inspection device. The camera module of claim 1, further comprising a fail sorting unit configured to pick up a camera module that is determined to be defective during the open short test, auto focusing, or image test process and store it in a separate tray. Inspection device. The method of claim 28, wherein the fail sorting unit An unloader for picking up a camera module identified as defective from the index table; A lift transfer unit which receives the camera module from the unloader and lowers it, and then transfers it in a horizontal direction; And, And a sorting unit configured to pick up the camera module on the lift transfer unit and store it in a tray. 30. The apparatus of claim 29, wherein the unloader is XYZ moving block for feeding in the X, Y, Z direction; And, And a picker installed at the XYZ moving block and picking up the camera module identified as defective on the index table and transferring the picked-up camera to the lift transfer unit. The method of claim 29, wherein the lifting transfer unit A Z moving block moving in the Z direction; An adsorption block detachably coupled to the Z moving block and adsorbing the camera module when the camera module is seated by the unloader; A Y moving block installed at a lower portion of the Z moving block and moving in a Y direction; And, And a rotating block receiving the suction block by the Z moving block and rotating the suction block by a predetermined angle. The method of claim 29, wherein the sorting unit An XZ moving block moving in the XZ direction; A picker coupled to the XZ moving block to pick up a camera module from the lift transfer unit; And, At least one tray is positioned so that the camera module is accommodated by the picker, and a lower surface of the tray includes a Y moving block for transferring in the Y direction.

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