TW201606278A - Camera module test and focus equipment and focusing and testing method - Google Patents

Abstract

A camera module test and focus equipment adapted for several camera modules of a breakaway panel includes a focusing device, a first driver, a carrier base, and a second driver. The focusing device is connected to the first driver, and the focusing device can be driven by the first driver so that the focusing device can rotate upwardly and downwardly along a vertical axis. The carrier base is disposed below the focusing device and connected to the second driver, and the carrier base can be driven by the second driver so that the carrier base can move forwardly and backwardly along a horizontal axis. When the breakaway panel is fixed on the carrier base and the camera modules are sequentially moved to the bottom of the focusing device, the focusing device rotates upwardly and downwardly to sequentially processes the focusing and testing steps of the camera modules of the breakaway panel.

Description

Automatic focusing test equipment and automatic focus test method

The invention relates to an automatic focusing test device and an automatic focus test method, in particular to an automatic focus test device and an automatic focus test method suitable for automatically adjusting a plurality of lens modules on a connected board, which can reduce Waste of working hours and improve work efficiency.

In recent years, portable electronic products, such as digital cameras, mobile phones, tablets, PC cameras, notebook computers, and personal digital assistants (PDAs), are generally equipped with miniaturized lens modules to encourage consumers to gradually develop Use the above-mentioned electronic product shooting function to meet the needs of consumers to shoot and record anytime, anywhere.

The lens module must undergo the focus test operation, and the automatic focus measurement device of the existing lens module of the factory production line adopts the automatic measurement method of the single lens module, that is, whenever the lens module needs to be adjusted, or After the focus adjustment is completed, the adjusted lens module needs to be removed from the test board to replace the next set of lens modules to be tested, so that the focus adjustment action can be performed. Obviously, the existing automatic focus test equipment and adjustment The measurement method is extremely inconvenient in operation, labor-intensive, and low in work efficiency.

The reason is that the present inventors have felt that the above problems can be improved, and that the present invention has been deliberately studied and used in conjunction with the theory, and a present invention which is reasonable in design and effective in improving the above problems has been proposed.

The main object of the present invention is to provide an automatic focusing test device and automatic tuning The coke test method can continuously automatically adjust the focusing distance of a plurality of lens modules on a connection board, thereby reducing waste of working hours and improving work efficiency.

In order to solve the above technical problem, the present invention provides an auto focus test device, which is adapted to automatically adjust a focus distance of a plurality of lens modules on a connection board, the auto focus test device comprising: a focus adjustment device, the focus adjustment The device is coupled to a first driving device, and the focusing device is drivable by the first driving device to rotatably vertically move up and down along a longitudinal axis direction; and a carrying moving seat, the carrying moving seat is located a portion below the periphery of the focusing device, and the carrier moving base is connected to a second driving device, and the carrying moving seat can be driven by the second driving device, so that the carrying moving seat can be movable horizontally in a horizontal axis direction Displacement; wherein the connecting plate is fixed to the carrying movable seat and the lens modules are sequentially displaced along the lateral axis direction to the underside of the focusing device, the focusing device rotates along the longitudinal direction The axial direction of the axial direction is vertically displaced to sequentially grasp the lens modules on the connecting plate to drive the lens modules to rotate, thereby adjusting the focusing distance of the lens modules.

In order to solve the above technical problem, the present invention provides an automatic focus measurement test method, including the steps of: providing an automatic focus measurement test apparatus; providing a connection board having a plurality of lens modules; and installing the connection board in the automatic Focusing test equipment; setting the initial position when the board is automatically commissioned; setting the commissioning parameters when the board is automatically commissioned; and starting the auto focus test device to automatically debug the board Lens module.

In summary, the automatic focus measurement test device and the automatic focus measurement test method provided by the present invention drive the focus adjustment device through the first driving device, so that the focusing device is rotatably vertically displaced up and down along a longitudinal axis direction. And driving the carrying mobile seat through the second driving device, the carrying moving seat is movable horizontally back and forth along a horizontal axis direction, and the plurality of lens modules on the connecting plate are sequentially arranged along the horizontal axis along with the carrying moving seat The ground is horizontally displaced to the underside of the focusing head, so that the focusing head located above the connecting plate can sequentially grasp the lens modules on the connecting plate to drive the lens modules to rotate, so as to continuously and automatically adjust Measure the focusing distance of multiple lens modules on the splicing board, and Dynamically complete the automatic focusing and detecting action to effectively improve work efficiency.

10‧‧‧ Focusing device

11‧‧‧focus wheel

12‧‧‧ focusing head

20‧‧‧First drive

21‧‧‧Land

22‧‧‧Drive wheel

23‧‧‧First motor

24‧‧‧First air cylinder

25‧‧‧ Mounting

30‧‧‧ Carrying mobile seat

31‧‧‧displacement structure

32‧‧‧Slip structure

321‧‧‧Sliding parts

322‧‧‧ Track

33‧‧‧ fixture

40‧‧‧Second drive

41‧‧‧second motor

42‧‧‧ screw

50‧‧‧Color plate group

51, 52, 53‧ ‧ swatches

60‧‧‧ third drive

61, 62, 63‧‧‧ pneumatic cylinder

71‧‧‧Start button

72‧‧‧Emergency stop button

p‧‧‧Connected

M‧‧‧ lens module

C‧‧‧Computer equipment

1 is a perspective view (1) of the automatic focus measuring device of the present invention.

2 is a perspective view (2) of the automatic focus test device of the present invention.

3 is a perspective view (3) of the automatic focus test device of the present invention.

4 is a side view (1) of the automatic focus test device of the present invention.

FIG. 5 is a side view (2) of the auto focus test device of the present invention.

Figure 6 is a side view (3) of the automatic focus test device of the present invention.

7 is a flow chart of a method for automatically focusing the focus of the present invention.

In order to further understand the objects, structures, features, and functions of the present invention, the embodiments are described in detail below. It is to be understood that the present invention is intended to be illustrative of the embodiments of the invention, and is not intended to limit the scope of the invention.

Please refer to Figure 1 to Figure 6. Embodiments of the present invention provide an automatic focus measurement device adapted to automatically adjust a focus distance of a plurality of lens modules m on a connection board P. The connecting board P may be formed by combining two or more identical circuit boards into one large circuit board, which may also be called a plywood or a jig. The auto-focusing test apparatus of this embodiment basically includes a focusing device 10, a first driving device 20, a carrier moving base 30, and a second driving device 40.

The focusing device 10 is connected to the first driving device 20, and the first driving device 20 can be driven to operate the focusing device 10, so that the focusing device 10 is rotatably vertically displaced in a longitudinal direction (ie, the Z-axis direction). . For example, the focusing device 10 of the embodiment may include a focusing wheel 11 and a focusing head 12 (FIG. 4), and the first driving device 20 may include a belt 21, a driving wheel 22, and a first A motor 23, a first pneumatic cylinder 24, and a mounting seat 25.

The focus wheel 11 is disposed at one end of the mounting seat 25, and the other end of the mounting seat 25 is coupled to the pneumatic cylinder 24, and the pneumatic cylinder 24 is used to drive the mounting seat 25 up and down along the longitudinal axis. The shifting, in turn, causes the focus wheel 11 to be vertically displaced in the vertical axis direction. The focusing head 12 is detachably disposed on the focusing wheel 11 to correspond to the lens module m on the connecting plate P of various specifications, and the focusing head 12 is vertically displaceable along the longitudinal axis of the focusing wheel 11.

The first motor 23 is disposed on the mount 25 and away from the focus wheel 11 . One end of the belt 21 is disposed on the focus wheel 11, and the other end of the belt 21 is disposed on the driving wheel 22 and driven by the first motor 23, thereby driving the focus wheel 11 to rotate, and the focusing head 12 can be followed by the focusing wheel 11. Rotating, and the focusing head 12 and the focusing wheel are coaxially disposed, that is, the focusing head 12 and the focusing wheel 11 are rotatable along the same axis. Therefore, in the first embodiment, the first pneumatic cylinder 24 of the first driving device 20 is a power source for driving the mounting seat 25 to move in the longitudinal direction, and the first motor 23 is a power source for driving the driving wheel 22 to rotate. Further, the focusing device 10 can be driven to be vertically displaced and rotated in the longitudinal direction.

The carrying mobile seat 30 is located below the periphery of the focusing device 10, and the carrying mobile base 30 is connected to the second driving device 40, and can be driven by the second driving device 40 to move the carrying mobile seat 30, so that the carrying moving base 30 can be movable along A horizontal axis direction (that is, a Y-axis direction) is horizontally displaced. For example, one end of the carrying mobile seat 30 of the present embodiment has a displacement structure 31 (for example, a displacement nut) extending downward, and the second driving device 40 can include a second motor 41 and a connection to the first The screw 42 of the motor 41 is disposed, and the screw 42 is disposed in the horizontal axis direction (that is, the Y-axis direction) and is threaded, and the screw 42 is bored in the displacement structure 31. In addition, the other end of the carrying mobile seat 30 has a sliding structure 32 extending downwardly, and the sliding structure 32 can include a sliding member 321 and a track 322, and the sliding member 321 is slidably fitted to the track 322. Therefore, when the second motor 41 drives the screw 42 to rotate along its axis, the displacement structure 31 is advanced or retracted along the screw 42 to drive the carrier moving seat 30 to be displaced back and forth in the horizontal axis direction synchronously, that is, the embodiment transmits The second motor 41 of the second driving device 40 is a power source for driving the screw 42 to rotate along its axis, thereby driving the carrier moving base 30 to be horizontally displaced back and forth in the horizontal axis direction. Furthermore, the connecting plate P is selectively fixed to the carrying movable seat 30, that is, when the connecting plate P is fixed to the carrying moving base 30, it can be horizontally displaced along the horizontal axis direction with the carrying moving base 30. And, the connecting plate P can be transparent It is fixed to the carrier moving base 30 by a jig 33 on the carrying mobile seat 30.

When actuated, as shown in FIG. 2 to FIG. 5, the focusing device 10 is driven by the first driving device 20, so that the focusing device 10 is vertically displaced vertically and vertically along the longitudinal axis direction (as shown in FIGS. 4 and 5), and is carried. The moving base 30 is driven by the second driving device 40 to horizontally displace the carrying moving base 30 in the horizontal axis direction (as shown in FIGS. 2 and 3), and the focusing head 12 is vertically displaced as the focusing wheel 11 rotates in the longitudinal direction. And the lens modules m on the connecting plate P are sequentially displaced along the horizontal axis direction to the directly below the focusing head 12, so that the focusing head 12 can sequentially grasp the connecting plate P. The lens modules m are used to drive the lens modules m to rotate, thereby adjusting the focusing distance of the lens modules m.

In detail, the carrier moving base 30 is horizontally displaced by the driving of the second driving device 40, and the connecting plate P placed and fixed on the carrying moving base 30 is also horizontally displaced and the outermost side of the connecting plate P is The lens module m (numbered, for example, 1) is horizontally displaced directly below the focusing head 12, and the focusing head 12 is moved downward by the driving of the first driving device 20 along the longitudinal axis direction to grasp downward The outermost lens module m on the connecting plate P drives the rotation thereof, and then the distance between the lens of the lens module m and the sensing chip is the focusing distance of the lens module m. After the focusing is completed, the focusing head is adjusted. 12 is driven upward by the driving of the first driving device 20 along the longitudinal axis direction, and the carrier moving seat 30 is horizontally displaced by a predetermined distance by the driving of the second driving device 40, so that an adjacent lens on the connecting plate P The module m (numbered, for example, 2) is horizontally displaced directly below the focusing head 12, and the focusing head 12 is again grasped by the driving of the first driving device 20 along the longitudinal axis direction downwardly on the connecting plate P Adjacent lens module m drives the rotation thereof to adjust the lens between the lens and the sensing chip of the adjacent lens module m Distance. In this way, through the reciprocating movement of the up and down displacement of the focusing head 12 and the horizontal displacement of the carrying movable seat 30, the focusing head 12 can sequentially grasp the ten lens modules to be tested on the connecting plate P to The lens modules m are rotated to adjust the focusing distance of the lens modules m. Therefore, the carrier moving base 30 is driven to be accurately displaced, and the focusing device 10 is driven to rotate accurately, so that the automatic focusing test device of the embodiment can continuously automatically adjust the lens modules on the connecting board P. m focusing distance to greatly improve work efficiency rate.

In addition, the auto focus test apparatus of the embodiment further includes a color palette set 50 for performing the flaw test, that is, the color palette set 50 is used for performing the flaw test after each lens module m is adjusted (FIG. 6). ). The swatch group 50 is located above the periphery of the focusing device 10, and the swatch group 50 is coupled to the third driving device 60, and the swatch group can be driven by the third driving device 60 to enable the swatch group 50 to move along The short axis direction (that is, the X axis direction) is shifted left and right, and the short axis direction (X axis direction), the horizontal axis direction (Y axis direction), and the vertical axis direction (Z axis direction) are perpendicular to each other. In addition, for example, the color palette set 50 of the present embodiment may include three different color swatches 51, 52, 53 (eg, white, gray, and black), and the third driving device 60 may include three separate The pneumatic cylinders 61, 62, 63 for driving the three color plates enable the three color plates 51, 52, 53 to be sequentially displaced in the short axis direction directly above the focusing device 10, so that each lens module After focusing, m can capture an all-white screen, a full gray screen, and a full black screen to detect whether the lens module m has stains and bright spots.

Furthermore, the auto focus test device of the embodiment can also be connected with a computer device C (as shown in FIG. 1 ), and the computer device C can be electrically connected to the first, second and third drive devices 20 , 40 , 60 through a connection line. In order to issue a task command, control its action, and process and process the test data, so that the operator can perform related operations according to the working state of the auto focus test device. Therefore, after the focusing device 10 is rotated and dropped, the lens module m can capture the information on the focusing plate (not shown) directly above the focusing device 10, and return the information to the computer device C to make the computer device C Performing image analysis processing according to the returned information and a built-in commissioning program, thereby controlling the first driving device 20, causing the focusing device 10 to operate to adjust the focusing distance of the lens module m, and using the screen to observe result.

It should be noted that the auto focus test device of the embodiment further includes other motors, pneumatic cylinders, screws and connecting lines for different functional actions, but this is not a modification focus of the embodiment, so for convenience of explanation and drawings It is concise and does not present its specific construction. In addition, the auto focus test equipment can be set on a stable work frame. The construction of the rack is not limited and may be appropriately changed as needed.

Furthermore, in other embodiments, the first, second, and third driving devices 20, 40, and 60 may be hydraulically, pneumatically, electronically, or the like in accordance with practical requirements. Drive and precise positioning.

Please refer to FIG. 7 , which is a flowchart of the present invention, and please refer to FIG. 2 to FIG. 6 together. The present invention further provides an automatic focus measurement test method, comprising the steps of: (S101) providing a aforementioned auto focus test device.

(S103) A connecting plate P having a plurality of lens modules m is provided.

(S105) The connecting plate P is mounted on the automatic focusing test device, and the connecting plate P is fixed to the carrying movable seat 30 of the automatic focusing test device through an adapted jig 33. In detail, the jig 33 is attached to the carrier moving base 30, and the connecting plate P is placed on the jig 33 so that the connecting plate P is fixed to the carrying moving base 30. When the jig 33 is installed, if the carrier moving seat 30 is not in the initial position, the carrier moving base 30 is moved to the initial position.

(S107) setting the initial position when the link P is automatically commissioned, and one of the lens modules m (for example, the outermost lens module) on the connecting plate P corresponds to the focusing head 12 of the focusing device 10. position. At this time, the focusing head 12 will rotate down, and the operator can see whether the lens module m is in the center of the focus wheel 11 from directly above. If the lens center of the lens module m deviates from the center of the focus wheel 11, the carrier moving base 30 can be advanced or retracted in the horizontal axis direction until the lens center of the lens module m coincides with the center of the focus wheel 11. In addition, if the lens center of the lens module m has a left-right deviation, it may be a dimensional deviation of the jig 33, and the jig 33 should be inspected.

(S109) Set the commissioning parameters when the board P is automatically commissioned. In detail, the commissioning parameter may include the number of the lens modules m on the connecting plate P, the width of the lens module m, and the spacing between the lens modules m to determine an accurate movement interval, and may be adjusted. The test program is set up, stored and executed.

(S111) The auto focus test device is activated to automatically debug the lens modules m on the connection board P. In detail, when the operator presses the auto focus test device The start button 71, the auto focus test device starts to operate, and the first drive device 20 drives the focus device 10 to rotate the focus head 12 up and down with the focus wheel 11 in the longitudinal direction, and is driven by the second drive. The device 20 drives the carrier moving seat 30, so that the connecting plate P is horizontally displaced along the horizontal axis of the carrier moving base 30 to the lower side of the focusing head 12, so that the focusing head 12 sequentially grasps the lenses on the connecting plate P. The module m drives the lens modules m to rotate, and automatically adjusts the focusing distances of the lens modules m according to the images captured by the lens modules m and the setting of the debugging program, and is performed by the third The driving device 60 drives the color palette group 50, and detects whether the lens modules m have stains and bright and dark points according to the screen of the color palette group 50 captured by the lens modules m and the setting of the debugging program, so as to be automatically completed. Automatic focusing and detection of all lens modules m on the board P. If the auto-focusing test equipment malfunctions during operation, or the foreign object collides with the auto-focusing test equipment, the operator can press the emergency stop button 72 of the auto-focusing test equipment to stop the auto-focusing test equipment immediately. .

(S111) After automatically adjusting and detecting all the lens modules m on the connection board P, the error code is marked in the defective lens module m.

In summary, the auto-focusing test device provided by the embodiment of the present invention drives the focusing device to operate through the first driving device, so that the focusing device is rotatably vertically displaced along a longitudinal axis direction, and is transmitted through the second The driving device drives the carrying moving seat to move the carrying seat to be horizontally displaced back and forth along a horizontal axis direction, and the plurality of lenses on the connecting plate are sequentially horizontally displaced to the focusing head along the horizontal axis direction of the carrying moving seat. In the lower part, the focusing heads located above the connecting board can sequentially grasp the lens modules on the connecting board to drive the lens modules to rotate, so as to continuously and automatically adjust multiple lenses on the connecting board. The focusing distance of the module can automatically complete the automatic focusing and detecting action, effectively improving work efficiency.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

10‧‧‧ Focusing device

11‧‧‧focus wheel

20‧‧‧First drive

21‧‧‧Land

22‧‧‧Drive wheel

23‧‧‧First motor

24‧‧‧First air cylinder

25‧‧‧ Mounting

30‧‧‧ Carrying mobile seat

33‧‧‧ fixture

40‧‧‧Second drive

41‧‧‧second motor

42‧‧‧ screw

50‧‧‧Color plate group

60‧‧‧ third drive

61, 62, 63‧‧‧ pneumatic cylinder

71‧‧‧Start button

72‧‧‧Emergency stop button

p‧‧‧Connected

M‧‧‧ lens module

Claims (11)

An auto-focusing test device is adapted to automatically adjust a focusing distance of a plurality of lens modules on a connecting board, the auto-focusing test device comprising: a focusing device, the focusing device being connected to a first driving device, The focusing device can be driven by the first driving device to rotatably vertically move up and down along a longitudinal axis direction; and a carrying moving seat, the carrying moving seat is located below the periphery of the focusing device, And the carrier moving seat is connected to a second driving device, and the carrying moving seat is driven by the second driving device, so that the carrying moving seat is movable horizontally back and forth along a horizontal axis direction; wherein the connecting plate is fixed to When the carrier module is sequentially displaced to the lower side of the focusing device along the horizontal axis direction, the focusing device is rotatably vertically displaced along the longitudinal axis direction and sequentially Grab the lens modules on the connecting board to drive the lens modules to rotate, and then adjust the focusing distance of the lens modules. The autofocusing test device of claim 1, wherein the focusing device comprises a focusing wheel and a focusing head, the focusing head is detachably disposed on the focusing wheel, and the focusing head and the focusing The wheel is set coaxially. The automatic focusing test device of claim 2, wherein the first driving device comprises a belt, a driving wheel, a first motor, a first pneumatic cylinder, and a mounting seat, wherein the focusing wheel is disposed on the mounting seat One end of the mount is coupled to the first pneumatic cylinder, the first motor is disposed at the mount and away from the focus wheel, and one end of the belt is disposed on the focus wheel, and the other end of the belt Provided on the driving wheel and driven by the first motor. The automatic focusing test device of claim 1, wherein the second driving device comprises a screw and a second motor for driving the screw, and one end of the carrying movable seat has a displacement structure extending downwardly. A screw is threaded through the displacement structure. The automatic focus test device of claim 4, wherein the other end of the carrier moving seat has a sliding structure extending downward. The automatic focus test device of claim 5, wherein the slip structure comprises a slider and a track, the slider being slidably fitted to the track. The automatic focusing test device of claim 1, further comprising a color palette set, wherein the color palette group is located above the periphery of the focusing device, and the color palette group is connected to a third driving device, wherein the color palette group can be The third driving device is driven to movably horizontally displace the color plate group horizontally in a short axis direction perpendicular to the longitudinal axis direction and the horizontal axis direction. An automatic commissioning method comprises the steps of: providing an automatic focusing test device as claimed in claim 1; providing a connecting plate having a plurality of lens modules; installing the connecting plate in the automatic focusing test device; setting automatic tuning Detecting the starting position of the connecting board; setting the commissioning parameter when automatically adjusting the connecting board; and starting the automatic focusing test device to automatically adjust the lens modules on the connecting board. The automatic debugging method of claim 8, wherein the step of installing the connecting board in the auto-focusing test device further comprises fixing the connecting plate to the auto-focusing test device through an adapted jig The bearer moves the seat. The automatic debugging method of claim 8, wherein in the step of setting a starting position when the board is automatically commissioned, one of the lens modules on the connecting board is moved to the carrying base Just below the focus head to set the starting position. The automatic commissioning method of claim 8, wherein in the step of setting the commissioning parameter when the board is automatically commissioned, the commissioning parameter is set by a commissioning program, and the commissioning parameter includes the connecting board The number, width, and spacing of the lens modules to determine the precise movement interval.