KR101640555B1 - Camera Test Apparatus - Google Patents

Abstract

The present invention relates to a camera test apparatus. The camera test apparatus comprises: a mobile phone holding part by which a mobile phone including a camera is held; a first plate part in which multiple test zones for testing the camera are installed; and a control part which has the first plate part and the mobile phone are relatively rotated so that one of the multiple zones are captured by the camera. According to the present invention, the camera test apparatus can perform a test rapidly and accurately by automating each test process for a camera, which is an end product installed in a mobile phone, and reduce a test space by design of space-intensive rotating test zones.

Description

Camera Test Apparatus

The present invention relates to a camera inspection apparatus, and more particularly, to a camera inspection apparatus capable of inspecting a camera mounted on a portable terminal.

2. Description of the Related Art In general, a portable terminal has additional functions such as photographing and moving picture shooting in addition to functions inherent to a terminal, and a camera plays an important role in this regard.

Recent cameras have realized high resolution image quality and include various functions such as auto focusing or optical zoom.

The camera mounted on the portable terminal is manufactured by using an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) as a main component. The camera collects an image of an object through an image sensor, And the stored image data may be displayed as an image on a display unit of the portable terminal.

The camera judges whether the camera operates normally through inspection of only the camera module unit before shipment after production and inspection of the state of the finished product. In the case of the camera inspection in the state of the finished product, the operator manually photographs the inspection pattern printed on the paper after placing the portable terminal on the cradle, inspects the low resolution class image with the image appearing on the monitor of the portable terminal, The operator directly views the image through the monitor of the computer, and then the camera is judged to be good or bad according to the subjective standard.

However, in the conventional method, since the accuracy of the inspection result is lowered and inspection is performed manually because the operator's subjective standard determines whether or not the camera is defective, there is a problem that it is cumbersome.

Even if a camera inspection device is implemented, not only is the size of a camera inspection device increased for various inspections, but also it is not applicable to various types of portable terminals.

Korean Registered Patent No. 10-0222587 (registered on July 28, 1999)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in an effort to solve the above problems, and an object of the present invention is to provide a method and apparatus for automating an inspection process for a camera in an end- And to provide a camera inspection apparatus that can minimize the size of the camera.

Further, the present invention includes other objects that can be achieved from the construction of the present invention described later, in addition to the objects explicitly mentioned.

According to an aspect of the present invention, there is provided a camera inspection apparatus including a portable terminal mounting part on which a portable terminal equipped with a camera is mounted, a first plate part on which a plurality of test zones for camera testing are installed, And a controller for causing the first plate unit and the portable terminal to rotate relatively so that one of the plurality of test zones is photographed by the camera.

The controller may analyze the image taken by the camera based on the inspection function software to determine whether the camera is good or bad.

The plurality of test zones may be spaced a predetermined distance downward from a lower portion of the first plate portion.

The plurality of test zones may be installed at different positions from the bottom of the first plate portion.

The plurality of test zones may include first to fourth test zones.

The first test zone may include a first test chart for remote resolution checking of the camera.

And a collimator lens unit positioned below the first test zone.

The second test zone may be provided with a second test chart for the short range resolution, color and preview inspection of the camera.

The third test zone may be provided with a third inspection chart for bruise and black spot inspection, presence / absence of a blurred image, and flash inspection.

The fourth test zone may include a fourth inspection chart for light blur and moving image inspection.

The fourth inspection chart may comprise a plurality of LEDs.

The first driving unit includes a rotating shaft coupled to the center of the first plate unit, a motor for rotating the driving shaft by receiving power, and a motor for rotating the first plate unit at both ends thereof And a belt portion that is rotatably supported by the rotation shaft and the drive shaft and transmits the rotational force of the motor to the rotation shaft.

The first driving unit may rotate the first plate unit such that the collimator lens unit is moved to a position opposite to the camera.

The portable terminal may further include a second plate portion provided on the mobile terminal mounting portion and having a fifth test zone and a second driving portion for moving the second plate portion under the control of the control portion.

The fifth test zone may include a fifth inspection chart for low light inspection.

The second driving unit may move the fifth test zone to a position where the fifth test chart is opposed to the camera so that the fifth test chart is captured by the camera.

The mobile terminal mounting unit may further include a seating jig to which the portable terminal can be mounted, and a seating base coupled to the seating jig, wherein the seating jig can be detachably mounted on the seating base.

The seating jig may be detachably attached to a first area of the seating base for testing a front camera of the portable terminal and may be detachably attached to a second area of the seating base for testing a rear camera of the portable terminal .

And a speaker for outputting sound under the control of the control unit.

As described above, according to the camera inspection apparatus according to the embodiment of the present invention, it is possible to check whether the camera performs a normal function even after it is finally assembled into a portable terminal and becomes a finished product.

In addition, it is possible to perform an inspection quickly and accurately by automating each inspecting process for a camera in a finished product mounted on a portable terminal, and it is possible to minimize a testing space by designing a space-intensive rotating test zone.

In addition, since the first plate portion is rotated or the second plate portion is moved, the inspection corresponding to the plurality of test zones is progressed sequentially and a plurality of items can be inspected at one time by one inspection chart. Therefore, There is an advantage of checking items.

In addition, it is possible to implement a minimum and optimal shot image within the limit of reducing the image transmission time and ensuring the detection power.

In addition, a collimator lens unit may be additionally provided to inspect the camera's far-field resolution, thereby minimizing the size of the test chart and reducing the inspection space (focal length), thereby improving space efficiency.

In addition, there is an advantage that the inspection environment can be easily changed so that camera inspection can be performed in various models of mobile terminals.

On the other hand, the effects of the present invention are not limited to those described above, and other effects that can be derived from the constitution of the present invention described below are also included in the effects of the present invention.

1 is a block diagram schematically showing a system including a camera inspection apparatus according to an embodiment of the present invention.
2 is a perspective view schematically showing a camera inspection apparatus according to an embodiment of the present invention.
3A is a perspective view schematically showing a portable terminal holder according to an embodiment of the present invention.
3B is a perspective view illustrating a seating state of a mobile terminal for inspection of a front camera according to an exemplary embodiment of the present invention.
3C is a perspective view illustrating a seating state of a mobile terminal for testing a rear camera according to an embodiment of the present invention.
4 is a diagram schematically illustrating a plurality of test zones according to an embodiment of the present invention.
FIG. 5A is a block diagram schematically illustrating the operation of a camera inspection apparatus for remote resolution inspection of a camera according to an exemplary embodiment of the present invention. Referring to FIG.
5B and 5C are illustrations showing images of a first inspection chart taken by a camera.
FIG. 6A is a block diagram schematically illustrating the operation of a camera inspection apparatus for a short-range resolution, color saturation, and preview inspection of a camera according to an exemplary embodiment of the present invention.
6B to 6D are illustrations showing images of a second inspection chart taken by a camera.
FIG. 7A is a block diagram schematically illustrating the operation of a camera inspection apparatus for a bruise and black spot inspection, a presence / absence of a blind spot, and a flash inspection according to an embodiment of the present invention.
7B to 7F are illustrations showing an image of a third inspection chart taken by a camera.
8A is a block diagram schematically illustrating the operation of a camera inspection apparatus for light blurring and moving image inspection according to an embodiment of the present invention.
8B to 8F are illustrations showing an image of a fourth inspection chart taken by a camera.
FIG. 9 is an exemplary diagram illustrating a wav waveform for sound inspection according to an embodiment of the present invention.
10A is a schematic configuration diagram for a low-illuminance inspection according to an embodiment of the present invention.
10B and 10C are illustrations showing an image of the fifth inspection chart taken by the camera.
11 is a flowchart illustrating an operation of sequentially inspecting a camera according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

2 is a perspective view schematically showing a camera inspection apparatus according to an embodiment of the present invention. FIG. 3A is a perspective view of a camera inspection apparatus according to an embodiment of the present invention. FIG. 3B is a perspective view illustrating a seating state of a portable terminal for inspection of a front camera according to an embodiment of the present invention, FIG. 3C is a perspective view of a portable terminal according to an embodiment of the present invention, FIG. And FIG. 4 is a view schematically showing a plurality of test zones according to an exemplary embodiment of the present invention. Referring to FIG.

1 and 2, the system includes an inspection apparatus 100 for inspecting a camera 35 mounted in the portable terminal 30, which is located in the case 10, A camera inspection device including a control unit 200 capable of discriminating between good or bad of the camera 35 by incorporating inspection function software and various signals or commands for controlling the inspection equipment 100 from a user, An input means 50 for transmitting the image data to the camera 200 and a monitor 70 for displaying an image photographed by the camera 35 on the screen.

The camera inspection apparatus includes a portable terminal mounting unit 110, a first plate unit 120, a first driving unit 130, a collimator lens unit 140, a second plate unit 150, a second driving unit 160, (200).

Referring to FIG. 3A, the portable terminal holder 110 is mounted on the portable terminal 30 equipped with the camera 35 to be inspected. The portable terminal mount 110 is fixed on the inner surface of the case 10 and includes a seating jig 112 on which the portable terminal 30 can be mounted and a seating base 114 coupled to the seating jig 112. [ . ≪ / RTI >

The seating jig 112 may be detachably mounted on the seating base 114.

More specifically, as shown in FIG. 3B, the seating jig 112 may be detachably provided in the first region R1 of the seating base 114 for testing the front camera 35a of the portable terminal 30 And may be detachably attached to the second region R2 of the seating base 114 for testing the rear camera 35b of the portable terminal 30 as shown in FIG.

As described above, the first and second regions R1 and R2, which match the positions of the respective cameras with the inspection chart, are formed in the seating base 114, so that inspection for the front camera 35a and the rear camera 35b, Can be performed.

Meanwhile, the portable terminal mounting unit 110 can be implemented in a structure in which the imaging region of the camera 35 can be moved to a plurality of test zones 121 to 124. For example, the portable terminal mounting portion 110 may be configured to be rotated along a rail (not shown) provided on the inner surface of the case 10, or to be moved left or right or back and forth.

2, a speaker 115 for outputting sound is further provided around the portable terminal mounting unit 110 to perform a sound inspection of a microphone (not shown) provided in the portable terminal 35 Let's do it.

The first plate portion 120 may include a plurality of test zones 121 to 124 for camera testing so that the plurality of test zones 121 to 124 are sequentially moved to positions opposed to the camera 35. [ And may be rotated by the first driving unit 130. For convenience of explanation, it will be assumed that one test zone is composed of four test zones according to an embodiment of the present invention.

Referring to FIG. 4, the plurality of test zones includes first through fourth test zones 121 to 124, and the test zones 121 to 124 are turned to be conformally rotated with respect to the rotation axis 132 coupled to the center of the first plate section 120 Lt; / RTI >

The first to fourth test zones 121 to 124 may be integrated with the first plate part 120 or may be installed below the first plate part 120. At this time, the first to fourth test zones 121 to 124 may be attached to the lower part of the first plate part 120 or may be spaced apart from the lower part of the first plate part 120 by a predetermined distance downward . The lower portion of the first plate portion 120 and the first to fourth test zones 121 to 124 are spaced apart by a predetermined distance from the first plate portion 120 and the first to fourth test zones 121 to 124, A plurality of connecting members 120a having a predetermined length may be installed between the upper portions of the first and second connecting members 120a and 120b.

The first to fourth test zones 121 to 124 may be installed at different positions from the bottom of the first plate part 120. The first test zone 121 may be attached to the lower portion of the first plate portion 120 or may be attached to the lower portion of the first plate portion 120 to secure the focal distance of the camera 35 for the remote resolution checking of the camera 35. [ As shown in FIG.

The first to fourth test zones 121 to 124 may be spaced apart from the camera 35 by a predetermined distance. At this time, the size of the plurality of test charts to be described below can be minimized by separating the first to fourth test zones 121 to 124 and the camera so that the focal length of the camera 35 is approximately 10 to 12 cm.

The first driving part 130 includes a rotating shaft 132 coupled to the center of the first plate part 120, a motor 134 for rotating the driving shaft 134a by receiving power, And a belt portion 136 that is rotatably supported by the shaft 134a and transmits the rotation force of the motor 134 to the rotation shaft 132. [

The first driving unit 130 rotates the first plate unit 120 under the control of the controller 200 to sequentially move the first to fourth test zones 121 to 124 to the photographing area of the camera 35 So that the inspection corresponding to the first to fourth test zones 121 to 124 can be sequentially performed.

The collimator lens unit 140 may be installed below the first test zone 121 and may be spaced apart from the first test zone 121 by a predetermined distance. The collimator lens unit 140 changes a focusing point for an object at a remote place to convert an object at a distance to a virtual distance. In one embodiment of the present invention, It is possible to change the focusing point for the chart T1. That is, the collimator lens unit 140 may be provided between the camera 35 and the first inspection chart T1 to make the first inspection chart T1 appear as if it is located nearer from the camera 35. [

The second plate portion 150 may include a fifth test zone 125 and may be moved laterally (in a horizontal direction) by the second driving portion 160. A guide roller (not shown) may be installed on one side of the second plate part 150 to be moved along a guide rail (not shown) installed on the upper part of the housing 155. The fifth test zone 125 is installed at a distance of about 0.5 cm to 1 cm from the upper portion of the camera 35 so that the camera 35 can photograph the fifth test zone 125 at a second close distance .

The second driving unit 160 may move the second plate unit 150 under the control of the controller 200 so that the fifth test zone 125 is positioned above the portable terminal unit 110. The second driving unit 160 may include a motor (not shown) for providing a driving force to the guide roller so that a guide roller (not shown) is moved in a horizontal direction along a guide rail (not shown).

The control unit 200 may cause the first plate unit 120 and the portable terminal 30 to relatively rotate so that one of the first to fourth test zones 121 to 124 is captured by the camera 35. [ The control unit 200 may cause the second plate unit 150 to move in the left and right direction so that the fifth test zone 125 is captured by the camera 35. [

The control unit 200 analyzes images photographed by the camera 35 based on the inspection function software, and can output results corresponding to various examinations using the analyzed results. That is, the control unit 200 analyzes the image photographed by the camera 35 based on the inspection function software, and compares the calculated value with a predetermined reference value (or reference range) Or defect can be discriminated.

FIG. 5A is a schematic diagram showing the operation of a camera inspection apparatus for remote resolution inspection of a camera according to an embodiment of the present invention, and FIGS. 5B and 5C are views showing images of a first inspection chart taken by a camera admit.

Referring to FIG. 5A, the remote resolution inspection of the camera is for checking a resolution at a long distance, and includes a first inspection chart T1 provided on one surface of the first test zone 121 corresponding to the camera 35 And it is possible to determine whether or not the camera is defective with respect to the remote resolution.

When the first driving part 130 rotates the first plate part 120 so that the first inspection chart T1 of the first test zone 121 is located in the photographing area of the camera 35 under the control of the controller 200 , The camera 35 may be positioned on the same vertical line as the collimator lens unit 140 and the first inspection chart T1.

When the camera 35 photographs the first inspection chart T1 through the collimator lens unit 140 and transmits the first inspection chart T1 to the control unit 200, the control unit 200 displays the first inspection chart It can be determined whether or not the image of the image T1 is clear.

More specifically, the control unit 200 analyzes the image of the first inspection chart T1 photographed by the camera 35 using the inspection function software, and outputs the result of the remote resolution inspection using the analyzed result . 5B is a partial defective image at a long-distance resolution, FIG. 5C is a total defective image at a long-distance resolution, and the control unit 200 analyzes the image of the first inspection chart T1 on a line- (For example, the number of black dots) calculated by the distance measuring unit 35 and a predetermined reference value, thereby determining whether or not the camera 35 is defective for the remote resolution check.

In this way, the collimator lens unit 140 is provided between the camera 35 and the first test zone 121 to reduce the focal distance, so that the long distance resolution of the camera 35 can be measured even at a short distance, The inspection space can be reduced and space efficiency can be improved.

FIG. 6A is a block diagram schematically illustrating the operation of a camera inspection apparatus for a short distance resolution, color and preview inspection of a camera according to an embodiment of the present invention. FIGS. 6B to 6D are views As shown in FIG.

Referring to FIG. 6A, the near-field resolution check of a camera is for checking a resolution at a near-field resolution or an actual general camera using distance, a color tone check for checking an abnormal color or the like, A second test chart T2 provided on one side of the second test zone 122 is photographed to check whether or not the camera 35 has a close range resolution, It is possible to judge whether or not it is defective.

When the first driving part 130 rotates the first plate part 120 so that the second inspection chart T of the second test zone 122 is located in the photographing area of the camera 35 under the control of the controller 200 , The camera 35 may be positioned on the same vertical line as the second inspection chart T2.

When the camera 35 photographs the second inspection chart T2 and transmits the second inspection chart T2 to the control unit 200, the control unit 200 receives the image of the second inspection chart T2 taken by the camera 35, Resolution, color and preview inspection can be performed. The control unit 200 may analyze the image of the second inspection chart T2 based on the inspection function software and perform the near resolution check using the calculated value and a predetermined reference value. In order to perform the colorimetric test, the controller 200 calculates the Lab color coordinate value based on the inspection function software, and then determines whether the difference between the Lab color coordinate value and the Ref color coordinate value (color coordinate value calculated from the color ROI) , It can be determined that there is an abnormality in the color coordinate system and a defective process can be performed.

In addition, the preview inspection can be performed by using a preview image obtained by " screen capturing " the preview screen on the screen of the portable terminal and the image of the second inspection chart T2 taken by the camera 35, , The controller 200 may down-scale the resolution of the image of the second inspection chart T2 to fit the preview image, and then calculate a differential image of the two images. When the non-black data exists and the size of the non-black data exceeds a specific size, the control unit 200 determines that there is a singular point in the two images, can do.

FIG. 7A is a block diagram schematically illustrating the operation of a camera inspection apparatus for bark and black spot inspection, presence / absence of a blind spot, and flash inspection according to an embodiment of the present invention. FIGS. 7B to 7F are views showing a third inspection chart As shown in FIG.

Referring to FIG. 7A, the test for bruise and black spot, the presence or absence of a blurred image, and the flash test are performed to check whether the camera is abnormal, brightness, brightness, or the like, A third inspection chart T3 having a gray color attached to one surface of the camera body 123 can be photographed to determine whether the camera is defective for bruise and black spot inspection, presence or absence of a blurred image, and flash inspection. At this time, the third inspection chart T3 may be an image of a gray color rather than a pattern image.

When the first driving part 130 rotates the first plate part 120 so that the third inspection chart T3 of the third test zone 123 is located in the photographing area of the camera 35 under the control of the controller 200 , The camera 35 may be located on the same vertical line as the third inspection chart T3.

When the camera 35 photographs the third inspection chart T3 and transmits the third inspection chart T3 to the control unit 200, the control unit 200 receives the image of the third inspection chart T3 taken by the camera 35, And inspection of black spots, and inspection of presence / absence of blindness. That is, the control unit 200 compares the calculated image by analyzing the image obtained by the camera 35 with a predetermined reference range or reference value, and determines whether the camera 35 is good or bad according to the comparison result. It is possible to identify the defect. 7B is an image of a third inspection chart with a bruise formed thereon, FIG. 7C is an image of a third inspection chart formed with a black dot, FIG. 7D is an image of a third inspection chart formed with a blind angle, , The control unit 200 can determine whether the camera 35 is defective by judging whether a bruise or a black spot is formed on the third inspection chart T3 of gray color or whether there is a blurred image. Figs. 7E and 7F are images of a third inspection chart respectively showing pre-flash and post-flash. As shown in Fig. 7E, in order to perform flash inspection, the camera 35 displays a third inspection chart T3 The control unit 200 photographs the first inspection chart T3 and the second inspection chart T3 with the flash function as shown in FIG. 7F and transmits the same to the control unit 200. The control unit 200 compares the first and second images, 35 can be judged to be good or bad. That is, the controller 200 calculates the difference in the brightness values of the central portions of the primary and secondary images. If the brightness difference is smaller than a predetermined value, the controller 200 determines that there is a problem with the function of the flash, have.

FIG. 8A is a schematic diagram illustrating the operation of a camera inspection apparatus for inspecting a light blur and a moving image according to an embodiment of the present invention, and FIGS. 8B to 8F are views illustrating an image of a fourth inspection chart taken by a camera admit.

Referring to FIG. 8A, the light blurring and moving image inspection is performed to check whether the light is blurred or the moving image photographing function works properly. The fourth test zone 124 includes a fourth inspection chart (T4) is photographed to determine whether the camera 35 is defective for light blur and moving image inspection.

When the first driving unit 130 rotates the first plate unit 120 so that the fourth inspection chart T4 of the fourth test zone 124 is located in the photographing area of the camera 35 under the control of the controller 200 , The camera 35 may be located on the same vertical line as the fourth inspection chart T4 composed of a plurality of LEDs.

When the plurality of LEDs are lighted and then the camera 35 is photographed and transmitted to the control unit 200, the control unit 200 displays the images of the plurality of LEDs photographed by the camera 35 And the light blurring test can be performed. Fig. 8B is an example showing good light blurring. Fig. 8C is an example showing poor light blurring. As shown in Fig. 8B, when the light blurring is good, The lighting state of some of the LEDs or the entire LEDs may appear to be a blurred form or an irregular array that is not a square, as shown in FIG. ) Can be judged to be good or bad.

8D to 8F illustrate moving images sequentially. As shown in FIGS. 8D to 8F, the camera 35 can photograph a plurality of LED moving images sequentially illuminated for moving images.

More specifically, when the camera 35 photographs a plurality of LED moving images sequentially lit at predetermined time intervals and transmits them to the control unit 200, the controller 200 displays a plurality of LED images Can be extracted. The control unit 200 can determine whether the camera 35 is defective by analyzing the lighting state of the LED according to the time difference using the inspection function software. For example, as shown in FIG. 8D, a plurality of LED images having a constant time difference extracted from the control unit 200, an image in which six LEDs are lit, an image in which twelve LEDs are lit as shown in FIG. 8E, When the 18 LEDs are lighted images, the control unit 200 can determine that the function of the camera 35 for the moving image inspection is good. It goes without saying that the control unit 200 can determine whether the camera 35 is defective or not in various ways.

FIG. 9 is an exemplary diagram illustrating a wav waveform for sound inspection according to an embodiment of the present invention.

The sound test is for checking whether the recording function of the microphone provided in the portable terminal 35 is operating properly. When the moving picture is photographed for moving picture inspection, a sample sound outputted through the speaker 115 at the same timing is recorded and inspected .

Then, the sample sound recorded through the microphone is transmitted to the control unit 200. The control unit 200 decodes the recorded sample sound into the MP4 file to generate the wav file, analyzes the generated wav file, Or not. 9, the control unit 200 groups the wav waveforms based on the reference minimum value dB (decibel), and then sets the limit length and the limit maximum dB in the group to satisfy a predetermined reference value If the reference value is satisfied, it is determined to be good. If the reference value is not satisfied, it can be determined to be defective.

FIG. 10A is a schematic configuration diagram for a low-light inspection according to an embodiment of the present invention, and FIGS. 10B and 10C are illustrations showing images of a fifth inspection chart taken by a camera.

Referring to FIG. 10A, the low-illuminance inspection is performed to check a state of low illumination. The fifth inspection chart T5 of the black color is provided on one surface of the fifth test zone 125, Good or bad can be discriminated. At this time, the fifth inspection chart T5 may be formed of black image instead of the pattern image. The second plate portion 120, the fifth test zone 125, and the fifth inspection chart T5 may be integrally formed.

When the second driving section 160 moves the fifth inspection chart T5 of the fifth test zone 125 to the photographing area of the camera 35 under the control of the control section 200, Can be located on the same vertical line as T5. At this time, the fifth inspection chart T5 may be located at a close proximity of the camera 35 in order to establish a low-illuminance environment.

When the camera 35 photographs the fifth inspection chart T5 and transmits the fifth inspection chart T5 to the control unit 200, the control unit 200 receives the image of the fifth inspection chart T5 taken by the camera 35, Inspection can be performed. That is, the control unit 200 analyzes the image of the fifth inspection chart T5 taken by the camera 35 based on the inspection function software, and analyzes the image of the fifth inspection chart T5 to determine a white defect, a signal to noise ratio (SNR) Noise), and the like, and can output the inspection result of the goodness or the badness of the camera 35. 10B is an image with noise, FIG. 10C is an image with a white point, and if there is a noise or a white spot as shown in FIG. 10B or FIG. 10C in the image of the fifth examination chart T5, 35). ≪ / RTI >

Meanwhile, the first to fifth inspection charts T1 to T5 may be configured to be changeable in various types and shapes.

In addition, since the inspection chart is implemented as a multi-chart so that a plurality of items can be inspected at a time with one inspection chart, it is possible to reduce the transmission time of the image by implementing a minimum shot, Since the optimal shot image is implemented, the accuracy of the test result can be guaranteed.

11 is a flowchart illustrating an operation of sequentially inspecting a camera according to an exemplary embodiment of the present invention.

The portable terminal 30 on which the camera 35 is mounted can be mounted on the portable terminal holder 110 as shown in Fig. 11 (S1000). At this time, in order to test the front camera of the portable terminal 30, the portable terminal 30 may be mounted on the first area R1 of the mounting base 114, 2 region R2.

Then, the first plate portion 120 or the second plate portion 150 may be moved (rotated) to sequentially position the test zones 121 to 125 in the photographing area of the camera 35 (S1100) .

More specifically, the first plate part 120 is rotated to sequentially position the first to fourth test zones 121 to 124 in the photographing area of the camera 35, or to move the second plate part 150 So that the fifth test zone 125 can be located in the photographing area of the camera 35.

Next, an image obtained by photographing a test chart of the test zone located in the photographing area of the camera 35 can be obtained (S1200).

More specifically, when the test zone is located in the photographing area of the camera 35, the camera 35 can photograph the test chart provided in the test zone and transmit the image of the photographed test chart to the control unit 200.

Then, the control unit 200 analyzes the image of the inspection chart taken by the camera based on the inspection function software, and performs the inspection of the camera 35 (S1300).

Then, the control unit 200 can output the inspection result of the camera 35 performed (S1400). That is, the control unit 200 can output the goodness or badness of the camera 35 as a result of the inspection of the camera 35.

The mobile terminal 30 is detached from the first region R1 or the second region R2 of the seating base 114 and then the mobile terminal 30 is moved And can be mounted to the second area R2 or the first area R1 of the seating base 114 by rotating 180 degrees. Then, the user can go back to step 1100 to test the rear camera or the front camera.

If the test is not terminated, the user may go back to step 1100 to move the first plate part 120 or the second plate part 150, and then proceed to another item corresponding to another test zone.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

110: portable terminal mounting part 120: first plate part
130: first driving part 140: collimator lens part
150: second plate portion 160: second driving portion
200:

Claims (19)

A portable terminal mounting part on which a portable terminal equipped with a camera is mounted,
A first plate portion on which a plurality of test zones for camera testing are installed, and
And a control unit for causing the first plate unit and the portable terminal to relatively rotate so that one of the plurality of test zones is photographed by the camera,
Wherein the plurality of test zones includes first through fourth test zones,
Wherein the second test zone comprises:
A second inspection chart for close range resolution, color and preview inspection of the camera is provided,
Wherein,
Downscales the resolution of the image of the second test chart photographed by the camera on the basis of the test function software to fit the preview image captured on the screen of the portable terminal on the screen of the portable terminal, Calculates a difference image between the image of the chart and the preview image, and binarizes the calculated difference image based on a predetermined threshold value, and analyzes the binarized difference image to determine whether the camera is good or bad for preview inspection Camera inspection equipment. delete The method of claim 1,
The plurality of test zones may include:
Wherein the first plate portion is spaced apart from a lower portion of the first plate portion by a predetermined distance in a downward direction. The method of claim 1,
The plurality of test zones may include:
Wherein the first plate portion is provided at a different position from the lower portion of the first plate portion. delete The method of claim 1,
Wherein the first test zone comprises:
A camera inspection apparatus comprising a first inspection chart for remote resolution checking of a camera. The method of claim 6,
Further comprising a collimator lens unit located below the first test zone. delete The method of claim 1,
The third test zone may include:
A camera inspection apparatus equipped with a third inspection chart for bruise and black spot inspection, presence / absence of blurred image, and flash inspection. The method of claim 1,
The fourth test zone may include:
And a fourth inspection chart for light blurring and moving image inspection. 11. The method of claim 10,
The fourth inspection chart may include:
A plurality of LEDs,
Wherein the controller is configured to extract a plurality of LED images having a predetermined time difference from the transmitted moving images when the camera captures moving images of the plurality of LEDs sequentially illuminated at predetermined time intervals, And determining whether the camera is good or bad for the moving image inspection by analyzing the lighting state of the LED according to the time difference based on the extracted plurality of LED images. 8. The method of claim 7,
And a first driving unit for rotating the first plate unit under the control of the control unit,
Wherein the first driving unit includes:
A motor for rotating the driving shaft by receiving power and a belt for rotating both ends of the rotating shaft and the driving shaft to transmit rotational force of the motor to the rotating shaft; Device. The method of claim 12,
Wherein the first driving unit includes:
And the first plate portion is rotated so that the collimator lens portion is moved to a position facing the camera. The method of claim 1,
A second plate portion provided on the portable terminal mounting portion and having a fifth test zone,
And a second driving unit for moving the second plate unit under the control of the control unit. The method of claim 14,
The fifth test zone may include:
And a fifth inspection chart for low light inspection. 16. The method of claim 15,
Wherein the second driver comprises:
And moves the fifth test zone to a position facing the camera such that the fifth test chart is captured by the camera. The method of claim 1,
Wherein the portable terminal-
A seating jig to which the portable terminal can be mounted, and
And a seating base coupled to the seating jig,
The seating jig,
And a camera inspection device detachably mounted on the seating base. The method of claim 17,
The seating jig,
The portable terminal of claim 1, further comprising:
Wherein the camera base is detachably mounted on a second area of the seating base for testing a rear camera of the portable terminal. The method of claim 1,
And a speaker for outputting sound under the control of the control unit.

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