CN110446031A - Camera module detection system - Google Patents
Camera module detection system Download PDFInfo
- Publication number
- CN110446031A CN110446031A CN201910749048.5A CN201910749048A CN110446031A CN 110446031 A CN110446031 A CN 110446031A CN 201910749048 A CN201910749048 A CN 201910749048A CN 110446031 A CN110446031 A CN 110446031A
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- segment
- chart board
- camera module
- detection system
- substrate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Studio Devices (AREA)
Abstract
The present invention discloses a kind of camera module detection system, including camera installation position and set on first chart board, the second chart board, optical mirror slip group of camera installation position the same side, and second the distance between chart board and camera installation position less than the distance between the first chart board and camera installation position, and it is greater than the distance between optical mirror slip group and camera installation position, first chart board includes first substrate and the first segment, second chart board includes the second substrate and the second segment, the second substrate is transparent substrate, and projection of first segment in the second substrate is staggered with the second segment.In this camera module detection system, since setting two apart from the far and near different chart board of camera module, far and near different object can be imaged simultaneously respectively, it is convenient to which the focusing for carrying out double depth of field can meet the test request of double depth of field；Since the second substrate is transparent, camera module can absorb the complete image of the first chart board and the second chart board respectively, make to test more acurrate.
Description
Technical field
The present invention relates to technical field of imaging, more particularly to a kind of camera module detection system.
Background technique
Currently, the portable electronic products such as each electronic product, such as mobile phone, camera, tablet computer, in order to provide more
Usage experience abundant, is generally all configured with camera module.In order to produce satisfactory camera module, need to taking the photograph
As head mould group carries out the dependence tests such as SFR (spatial frequency response) test.Currently, SFR test is generally adopted
It is tested with single distance focusing technique: as shown in Figure 1, in the front of camera module 100 setting chart board 102, on chart board 102
Equipped with imaging blocks 104, then the camera lens of rotating camera mould group 100 finds articulation point to carry out focusing, takes the photograph after finding articulation point
As the image of the acquisition chart board 102 of head mould group 100, judge whether to meet SFR test request further according to picture quality.
However, SFR test request is focused such as 5 meters and 45 centimetres of position simultaneously for double depth of field camera modules
Clearly, test being carried out using above-mentioned single distance focusing technique and being usually chosen in 1 meter of position focusing clearly, this will lead to test and passes through
Rate is lower, is unable to satisfy the SFR test of double depth of field camera modules.
The narration of front is to provide general background information, might not constitute the prior art.
Summary of the invention
The purpose of the present invention is to provide the camera module inspections that one kind can meet double depth of field camera module test requests
Examining system.
The present invention provides a kind of camera module detection system, including the first chart board, the second chart board, optical mirror slip group and takes the photograph
As head installation position, first chart board, second chart board and the optical mirror slip are mounted on the same of the camera installation position
Side, and the distance between second chart board and the camera installation position are less than first chart board and the camera is pacified
The distance between position is filled, and is greater than the distance between the optical mirror slip group and the camera installation position, first chart board
The first segment including first substrate and on the first substrate, second chart board include the second substrate and are set to described
The second segment in the second substrate, the second substrate are transparent substrate, the throwing of first segment on the second substrate
Shadow is staggered with second segment.
In one embodiment, first segment and second segment are multiple, multiple first segments
Projection on the second substrate is staggered with multiple second segments.
In one embodiment, first segment includes the first center segment and multiple first peripheries segment, each institute
State the first periphery segment being equidistant to first center segment.
In one embodiment, multiple first periphery segments are in along by a straight line of first center segment
Line is symmetrical.
In one embodiment, first periphery segment is four, the company of the first periphery segment described in two of them
Line intersects at the segment of first center with the line of the first periphery segment described in other two.
In one embodiment, second segment includes the second center segment and multiple second week edge graph blocks, each institute
State second week edge graph block being equidistant to second center segment.
In one embodiment, multiple second week edge graph blocks are in along by a straight line of second center segment
Line is symmetrical.
In one embodiment, the second week edge graph block is four, the company of second week edge graph block described in two of them
Line intersects at the segment of second center with the line of second week edge graph block described in other two.
In one embodiment, second segment is less than first segment；And/or first segment and institute
The shape for stating the second segment is different.
In one embodiment, the camera installation position is equipped with camera module, and the camera module is for taking the photograph
Take the image of first chart board and second chart board.
In camera module detection system of the present invention, since two chart boards different apart from camera module distance are arranged,
Therefore far and near different object can be imaged simultaneously respectively, it is convenient to which the focusing for carrying out double depth of field can meet the survey of double depth of field
Examination requires.Simultaneously as the second substrate is arranged transparent, camera module can absorb the complete of the first chart board and the second chart board respectively
Whole image makes to test more acurrate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of camera module detection system.
Fig. 2 is the schematic side view of the camera module detection system of one embodiment of the invention.
Fig. 3 is the schematic elevation view of the first chart board of camera module detection system shown in Fig. 2.
Fig. 4 is the schematic elevation view of the second chart board of camera module detection system shown in Fig. 2.
Fig. 5 is the rear depth of field curve synoptic diagram of camera module detection system shown in Fig. 2.
Fig. 6 is the preceding depth of field curve synoptic diagram of camera module detection system shown in Fig. 2.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
It please join Fig. 2, the camera module detection system provided in one embodiment of the invention, including the first chart board 11, second
Chart board 13, optical mirror slip group 15 and camera installation position, the first chart board 11, the second chart board 13 and optical mirror slip group 15 are set to camera shooting
The same side of head installation position, and the distance between the second chart board 13 and camera installation position are pacified less than the first chart board 11 with camera
The distance between position is filled, and is greater than the distance between optical mirror slip group 15 and camera installation position.First chart board 11 includes first
Substrate 112 and the first segment 114 on first substrate 112, the second chart board 13 is including the second substrate 132 and is set to the second base
The second segment 134 on plate 132, the second substrate 132 be transparent substrate, projection of first segment 114 in the second substrate 132 with
Second segment 134 is staggered.
Specifically, in one embodiment, the distance of the first chart board 11 to camera installation position can be 5 meters, the second chart board
13 distance to camera installation position can be 45 centimetres.
In the present embodiment, the first segment 114 and the second segment 134 be it is multiple, multiple first segments 114 are in the second substrate
Projection on 132 is staggered with multiple second segments 134.
In the present embodiment, please with reference to Fig. 3, the first segment 114 includes the first center segment 114a and first week multiple
Edge graph block 114b, each first periphery segment 114b being equidistant to the first center segment 114a.In this way, when the first chart board 11 exists
When the camera module 200 being arranged on camera installation position is imaged, camera module 200 can be judged according to image result
Whether the components such as imaging sensor, camera lens are equipped with angle tilt, to improve the accuracy of test.
Specifically, multiple first periphery segment 114b are symmetrical in line along the straight line by the first center segment 114a.Tool
In the present embodiment, the first periphery segment 114b is four to body, the line and other two of the first periphery of two of them segment 114b
The line of a first periphery segment 114b intersects at the first center segment 114a.It, can be into one by the setting of this symmetry
Step, which facilitates, compares the image difference after each first segment 114 is imaged, to facilitate the imaging sensing for judging camera module 200
Whether the components such as device, camera lens are equipped with angle tilt, to improve the accuracy of test.
In the present embodiment, please with reference to Fig. 4, the second segment 134 includes the second center segment 134a and multiple second weeks
Edge graph block 134b, each second week edge graph block 134b are equidistant to the second center segment 134a's.In this way, when the second chart board 11 exists
When the camera module 200 being arranged on camera installation position is imaged, camera module 200 can be judged according to image result
Whether the components such as imaging sensor, camera lens are equipped with angle tilt, to improve the accuracy of test.
Specifically, multiple second week edge graph block 134b are symmetrical in line along the straight line by the second center segment 134a.Tool
In the present embodiment, second week edge graph block 134b is four to body, the line and other two of two of them second week edge graph block 134b
The line of a second week edge graph block 134b intersects at the second center segment 134a.It, can be into one by the setting of this symmetry
Step, which facilitates, compares the image difference after each second segment 134 is imaged, to facilitate the imaging sensing for judging camera module 200
Whether the components such as device, camera lens are equipped with angle tilt, to improve the accuracy of test.
In the present embodiment, the second segment 134 is less than the first segment 114.It is distinguished in the image of imaging in this way, can be convenient
First segment 114 and the second segment 134.It is appreciated that the shape of the first segment 114 and the second segment 134 can also be designed as
Difference distinguishes to be aligned.
In the present embodiment, optical mirror slip group 15 may include one or more eyeglasses, be used for because space limitation can not be directly real
When existing focussing distance, the distance of Simulation scale-up needs.In this way, even if being also able to achieve focusing on the limited board of bulk,
Improve space utilization rate.It is appreciated that optical mirror slip group 15 can be omitted when not considering board bulk.
In the present embodiment, camera installation position is equipped with camera module 200, and camera module 200 is for absorbing the first figure
The image of plate 11 and the second chart board 13.When carrying out SFR test, focus camera module 200 until 11 He of the first chart board
The imaging of second chart board 13 is clear, at this moment carries out SFR test according to the image of imaging.Specifically, the first chart board 11, the second figure
Plate 13 and optical mirror slip group 15 are on the optical axis of camera module 200.
In the present embodiment, camera module detection system further includes board (not shown), the first chart board 11, the second chart board
13, optical mirror slip group 15 and camera installation position are set on board.
When being tested using this camera module detection system camera module 200, camera module 200 is arranged
At the camera installation position of board, then the camera lens of rotating camera mould group 200 focuses to it, until the first chart board 11
With the second chart board 13 in camera module 200 blur-free imaging, then judge that camera module 200 is according to the image of imaging
No qualification.
As shown in figure 5, the curve graph of formation is imaged in camera module 200 for the first chart board 11, wherein abscissa is
The camera lens of camera module 200 angle for rotating in focusing, ordinate be that (image is more clear, on board for the score that is imaged
System-computed obatained score is higher), refer to the first periphery segment 114b for being located at the top-left position of the first chart board 11 after LT, refers to after RT
Refer to after the first periphery segment 114b of the upper-right position of the first chart board 11, RB and is located at the of the bottom-right location of the first chart board 11
Refer to the first periphery segment 114b for being located at the lower left position of the first chart board 11 after one periphery segment 114b, LB, refers to after CT and be located at the
First center segment 114a of the center of one chart board 11.Fig. 5 shows point of each first segment 114 in focussing process
Number.In the present embodiment, the score of the first center segment 114a is greater than 60 points, and the score of the first periphery segment 114b is greater than 30 points then
It is considered qualification, and for a camera module 200, it is necessary to which the score of the first all segments 114 all reaches
It is required that score, in the imaging clearly of such a section (i.e. the section pass in Fig. 5) interior camera module 200.Such as Fig. 6 institute
Show, the curve graph of formation is imaged in camera module 200 for the second chart board 13, refers to the upper left position for being located at the second chart board 11 before LT
Refer to before referring to second week edge graph the block 134b, RB for the upper-right position for being located at the second chart board 11 before the second week edge graph block 134b, RT that set
Refer to before second week edge graph the block 134b, LB of the bottom-right location of the second chart board 11 and is located at the of the lower left position of the second chart board 11
Refer to the second center segment 134a for being located at the center of the second chart board 11, remaining content of Fig. 6 before two periphery segment 134b, CT
Similar with Fig. 5, details are not described herein.Fig. 5 and Fig. 6 is combined, the first chart board 11 and the imaging of the second chart board 13 can be obtained simultaneously
The section met the requirements can also judge whether camera module 200 is qualified.
In this camera module detection system, since two chart boards different apart from camera module distance are arranged,
Far and near different object can be imaged simultaneously respectively, it is convenient to which the focusing for carrying out double depth of field, the test that can meet double depth of field are wanted
It asks.Simultaneously as the second substrate 132 is arranged transparent, camera module can absorb the first chart board 11 and the second chart board 13 respectively
Complete image, make to test more acurrate.
In the accompanying drawings, for clarity, the size and relative size of layer and region can be exaggerated.It should be understood that working as
When element such as layer, region or substrate are referred to as on " being formed in ", " setting exists " or " being located at " another element, which can be straight
It connects and is arranged on another element, or there may also be intermediary elements.On the contrary, when element be referred to as " being formed directly into " or
When on " being set up directly on " another element, intermediary element is not present.
Herein unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, it can also be with
It is electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.
For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood with concrete condition.
Herein, term " on ", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outside", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal" is to be based on the orientation or positional relationship shown in the drawings, merely to expression skill
The clear and description of art scheme is convenient, therefore is not considered as limiting the invention.
Herein, sequence adjective " first ", " second " for describing element etc. is used for the purpose of discriminative attributes class
As element, be not meant to that the element described in this way must be according to given sequence or time, space, grade or other
Limitation.
Herein, unless otherwise indicated, " multiple ", " several " are meant that two or more.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, are removed
It comprising those of listed element, but also may include other elements that are not explicitly listed.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of camera module detection system, which is characterized in that including the first chart board (11), the second chart board (13), optical frames
Piece group (15) and camera installation position, first chart board (11), second chart board (13) and the optical mirror slip group (15)
Set on the same side of the camera installation position, and the distance between second chart board (13) and the camera installation position are small
In the distance between first chart board (11) and the camera installation position, and be greater than the optical mirror slip group (15) with it is described
The distance between camera installation position, first chart board (11) include first substrate (112) and be set to the first substrate
(112) the first segment (114) on, second chart board (13) include the second substrate (132) and be set to the second substrate
(132) the second segment (134) on, the second substrate (132) are transparent substrate, and first segment (114) is described the
Projection on two substrates (132) is staggered with second segment (134).
2. camera module detection system as described in claim 1, which is characterized in that first segment (114) and described
Second segment (134) be it is multiple, projection of multiple first segments (114) on the second substrate (132) with it is multiple
Second segment (134) is staggered.
3. camera module detection system as claimed in claim 2, which is characterized in that first segment (114) includes the
One center segment (114a) and multiple first peripheries segment (114b), in each first periphery segment (114b) to described first
Heart segment (114a's) is equidistant.
4. camera module detection system as claimed in claim 3, which is characterized in that multiple first periphery segments
(114b) is symmetrical in line along the straight line by first center segment (114a).
5. camera module detection system as claimed in claim 4, which is characterized in that first periphery segment (114b) is
Four, the company of the line of the first periphery segment (114b) and other two first periphery segment (114b) described in two of them
Line intersects at first center segment (114a).
6. the camera module detection system as described in claim 1-5 any one, which is characterized in that second segment
It (134) include the second center segment (134a) and multiple second week edge graph blocks (134b), each second week edge graph block (134b)
To being equidistant for second center segment (134a).
7. camera module detection system as claimed in claim 6, which is characterized in that multiple second week edge graph blocks
(134b) is symmetrical in line along the straight line by second center segment (134a).
8. camera module detection system as claimed in claim 7, which is characterized in that the second week edge graph block (134b) is
Four, the company of the line of second week edge graph block (134b) described in two of them and other two second week edge graph block (134b)
Line intersects at second center segment (134a).
9. camera module detection system as described in claim 1, which is characterized in that second segment (134) is less than institute
State the first segment (114)；And/or first segment (114) is different with the shape of second segment (134).
10. camera module detection system as described in claim 1, which is characterized in that the camera installation position is equipped with and takes the photograph
As head mould group (200), the camera module (200) is used to absorb first chart board (11) and second chart board (13)
Image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749048.5A CN110446031A (en) | 2019-08-14 | 2019-08-14 | Camera module detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749048.5A CN110446031A (en) | 2019-08-14 | 2019-08-14 | Camera module detection system |
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| CN110446031A true CN110446031A (en) | 2019-11-12 |
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| CN201910749048.5A Pending CN110446031A (en) | 2019-08-14 | 2019-08-14 | Camera module detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113840132A (en) * | 2020-06-23 | 2021-12-24 | 深圳市万普拉斯科技有限公司 | Test device and image test method for photographing device |
| CN114088655A (en) * | 2021-11-22 | 2022-02-25 | 津市市石油化工仪器有限公司 | Near infrared spectrum analysis and detection device and detection method for petroleum products |
| TWI758106B (en) * | 2021-02-23 | 2022-03-11 | 晟格科技股份有限公司 | Dual depth of field image adjustment system |
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| CN107645657A (en) * | 2016-07-21 | 2018-01-30 | 宁波舜宇光电信息有限公司 | SFR test equipments and its method of testing |
| CN109379582A (en) * | 2018-10-29 | 2019-02-22 | 信利光电股份有限公司 | A kind of detection method, device, equipment and the storage medium of fixed-focus camera module |
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| CN203444234U (en) * | 2013-06-29 | 2014-02-19 | 歌尔声学股份有限公司 | Lens testing device |
| CN105763869A (en) * | 2014-09-30 | 2016-07-13 | 宁波舜宇光电信息有限公司 | Testing and adjusting methods of camera device and adjusting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113840132A (en) * | 2020-06-23 | 2021-12-24 | 深圳市万普拉斯科技有限公司 | Test device and image test method for photographing device |
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| CN114088655A (en) * | 2021-11-22 | 2022-02-25 | 津市市石油化工仪器有限公司 | Near infrared spectrum analysis and detection device and detection method for petroleum products |
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Application publication date: 20191112 |