CN100458564C - Universal testing lamp box for mobile camera module and testing method thereof - Google Patents
Universal testing lamp box for mobile camera module and testing method thereof Download PDFInfo
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- CN100458564C CN100458564C CNB2006100884243A CN200610088424A CN100458564C CN 100458564 C CN100458564 C CN 100458564C CN B2006100884243 A CNB2006100884243 A CN B2006100884243A CN 200610088424 A CN200610088424 A CN 200610088424A CN 100458564 C CN100458564 C CN 100458564C
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- 238000012360 testing method Methods 0.000 title claims abstract description 173
- 230000003028 elevating effect Effects 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 6
- 238000011990 functional testing Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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Abstract
The related test device for mobile phone camera module comprises: a elevating device on middle-low position of the frame connect with the base frame and branch on frame top, a middle frame near the bottom of upper frame, a lower frame between the middle and base frames, and a light source on base frame. This invention can be used for both 300,000 and 1,300,000 pixels, reduces cost, and improves compatibility.
Description
Technical field
The present invention relates to testing mobile phone shooting module measuring technology, specifically a kind of device of testing mobile phone shooting module.
Background technology
Test is one master operation in the cell-phone camera module production run, is used for the performance of aspects such as the focusing of detection of handset shooting module, color, sharpness, specifically can be divided into three parts: focusing test, functional test and image measurement.Different test phase orders need detect with different target test papers.The characteristics of these method of testings are described respectively below.
1, focusing test: this part is that the shooting module is carried out focusing.As shown in Figure 1: the 1a in the accompanying drawing is the part of shooting module, is called camera lens; 1b is another part of shooting module, is called microscope base; The target test paper that uses when 1c is test promptly is the figure paper according to certain Rulemaking.L is the distance of shooting module to the target test paper, is called measuring distance; S is the distance that camera lens arrives brilliant unit (sensitive chip), is called focal length.Focusing is to make image reach a procedure the most clearly by the size that rotating lens changes S.2, functional test: this part mainly is the test of carrying out aspects such as color, white balance.Finish the test of this respect and must change test environment, promptly change measuring distance H and change the target test paper.3, image measurement: this part is mainly to the test of image definition.Finish the test of this respect and also must change test environment, promptly change measuring distance H and change the target test paper.
Because the diversification of cell-phone camera module is different to environment requirement with the per pass of test, therefore changing test condition just becomes the thing of test step than more complicated.The main performance both ways: one, the needed test condition difference of the different operations of product of the same race; Two, the needed test condition difference of same station of different model.Generally adopt following two kinds of testing schemes for the most of cell-phone camera module of above problem factory: make a proving installation at every kind of measuring distance and target test paper, or adopt automatic test device.The defective of these testing schemes is: 1, do when surveying at every kind of measuring distance and target test paper, proving installation need be made the needs that many ability satisfy test, so not only has high input, but also takes up room; Simultaneously,, also need to change proving installation when changing the test products model, so just wasted man-hour, influenced production efficiency because proving installation can not be general; Under the mutual uncurrent situation of proving installation, if certain shooting module is not produced, this BT(batch testing) device will be scrapped so, the wasting of resources occur.When 2, adopting automation equipment, expense than higher, output investment ratio is bigger, compatible poor to product as changing product type, then needs to make the measurement jig of costliness.
Summary of the invention
The objective of the invention is to design a kind of mobile telephone photographic module universal testing lamp box and method of testing, this technology can be changed different target test paper and measuring distance according to the test request of shooting module, to reduce cost, conveniently to use, enhance productivity, and improve its compatibility.
According to design proposal provided by the invention, elevating mechanism is installed in middle and lower part in frame, on elevating mechanism, connect underframe, support is installed in upper end in frame, below near upper bracket is the medium-height trestle that is installed on the frame, between medium-height trestle and underframe,, light source is installed on underframe for being installed on the lower carriage on the frame.
Upper bracket, medium-height trestle and underframe are respectively polygonal frame, and are parallel to each other.At the frontal plane of projection of upper bracket frontal plane of projection, between the sidewall of upper bracket and medium-height trestle, form the inclined-plane greater than medium-height trestle.Lower carriage is made up of two cross bars and two montants, and every cross bar connects into the L type with corresponding montant.Connect crossbearer on the frame above the underframe, light source has two groups, and first group of light source is installed on the both sides between upper bracket and the medium-height trestle, and second group of light source is installed on the both sides on the crossbearer.Two blocks of glass are arranged on medium-height trestle, be provided for the stator of Locating Glass in the both sides of medium-height trestle respectively.In elevating mechanism, tooth bar is arranged in the guiding mechanism that is installed on the frame, and with the gearing mesh that is installed in the rotating shaft, the upper end of tooth bar is connected with underframe, in the outer end of rotating shaft handwheel is arranged.
The method of testing of above-mentioned mobile telephone photographic module universal testing lamp box is characterized in that,
A, setup test paper: on the ground floor that forms by upper bracket, place a bigger test paper; On the second layer that forms by medium-height trestle, place the test paper that to change at any time; On the 3rd layer of forming, place two less test papers by lower carriage;
B, prepare module to be measured: the middle part that module to be tested is put into underframe.
C, adjust test paper on request: when using the ground floor test paper, second layer test paper is taken off, and the 3rd layer of test paper pushed away by S1 and S2 direction fold up; When using second layer test paper, second layer test paper is put, and the 3rd layer of test paper pushed away by S1 and S2 direction fold up; When using the 3rd layer of test paper, the lower carriage of placing the 3rd layer of test paper is left behind, finish the exchange of whole test paper;
D, adjustment measuring distance: according to the module of reality test, open light source, utilize the distance between elevating mechanism adjusting target test paper and module to be tested.
Advantage of the present invention is: a kind of proving installation that is used for 300,000 pixels and 1,300,000 pixel mobile phones shooting module is provided, has been mainly the condition that the cell-phone camera module provides test.It can provide different measuring distances and different test target test papers, to satisfy the needs of different model product test.Thereby reach the versatility of 300,000,1,300,000 pixel mobile phones shooting module test.
Description of drawings
Fig. 1 is shooting module test synoptic diagram.
Fig. 2 is test lamp box structure figure.
Fig. 3 is the synoptic diagram of 300,000 pixels focusing test and the test of 1,300,000 image pattern pictures.
Fig. 4 is the synoptic diagram of 1,300,000 pixels focusing test.
Fig. 5 is the synoptic diagram of 30 and 1,300,000 pixel functional tests.
Embodiment
As shown in Figure 2: elevating mechanism is installed in the middle and lower part in frame 11, on elevating mechanism, connect underframe 7, install support 1 in the upper end of frame 11, below near upper bracket 1 is the medium-height trestle 3 that is installed on the frame 11, between medium-height trestle 3 and underframe 7,, on underframe 7, light source is installed for being installed on the lower carriage on the frame 11.
The method of testing of mobile telephone photographic module universal testing lamp box is characterized in that,
A, setup test paper: on the ground floor that forms by upper bracket 1, place a bigger test paper; On the second layer that forms by medium-height trestle 3, place the test paper that to change at any time; On the 3rd layer of forming, place two less test papers by lower carriage;
B, prepare module to be measured: the middle part that module to be tested is put into underframe 7.
C, adjust test paper on request: when using the ground floor test paper, second layer test paper is taken off, and the 3rd layer of test paper pushed away by S1 and S2 direction fold up; When using second layer test paper, second layer test paper is put, and the 3rd layer of test paper pushed away by S1 and S2 direction fold up; When using the 3rd layer of test paper, the lower carriage of placing the 3rd layer of test paper is left behind, finish the exchange of whole test paper;
D, adjustment measuring distance: according to the module of reality test, open light source, utilize the distance between elevating mechanism adjusting target test paper and module to be tested.
The function and the effect of each structure are described below.
One, the structure and the each several part function (as shown in Figure 2) of test lamp box:
Whole testing device is the casing of being made by stainless steel.Role from test: comprise three target test paper supports, a jacking gear and two groups of light sources, specifically act on as follows:
Upper bracket 1: be the top of proving installation, the main material in four limits is an aluminium alloy, and a glass in middle embedding, is used for fixing the target test paper of 1,300,000 pixel camera module focusings test;
Medium-height trestle 3: this position is in the inboard of test lamp box, and the main material in four limits is an aluminium alloy, and two block length square glass are placed in the top, are used for fixing 300,000 pixel camera module focusing tests, image measurement and 1,300,000 pixel camera module image test papers.With the target test paper be divided into two be affixed on two on glass, like this can be very easily glass be taken out, change required target test paper.A stator 12 is each side arranged, and main material is an organic glass.The main fixing glass that rises is in case the test lamp box causes the landing of glass move left and right because of vibrations.
Lower carriage: this position mainly contains 6 aluminium and closes alloy bar three or three and combine, and is mainly used in the target test paper (having 2) of fixing 300,000 and 1,300,000 shooting module functions.One is fixed in the middle part; Another is fixed in not end.When this function not the time spent can it be turned up by S1 and S2 direction, the time spent puts down it and gets final product.
Elevating mechanism: the main tooth bar 8 in this position, the cogged rotating shaft 9 of installation and handle 10 are formed, rotary handle 10, rotate by rotating shaft 9 driven gears, gear driven tooth bar 8 moves up and down, the underframe 7 that tooth bar 8 drives the test lamp box of the face that is mounted thereon again rises or descends, and it is variable that measuring distance is become: measuring distance=L1+L3 or L2+L3.
Light source: light source is provided by daylight lamp, and one has two groups of light sources, every group of 2 daylight lamps.First group of light source is installed on 2 places, lamp box inclined-plane, each one of lamp box left and right sides; Second group is installed on lamp box crossbearer 6 places, each one of lamp box left and right sides.Be mainly the target test paper certain illumination and uniform light source are provided.
From physical construction is to be combined by the two large divisions, and a part is the test crown top of burner on top, is made up of upper bracket 1 and inclined-plane 2; Another part is the rectangular parallelepiped lamp box of bottom, is reached by medium-height trestle 2 to constitute with the lower part.Therefore can be as required will test crown top of burner removal, divide the work bit test.
The mentality of designing of this test lamp box is: shooting module measuring distance, the target test paper of 300,000 and 1,300,000 pixels are combined, by the versatility of sorting out, the methods such as position, fine adjustment of rationally putting reach 300,000 and 1,300,000 tests.
Aspect the target test paper, be three layers with all target test papers according to measuring distance and size classification setting, wherein ground floor is formed by upper bracket 1, and the second layer is formed by medium-height trestle 2, and the 3rd layer is formed by lower carriage.Ground floor is placed a bigger target test paper, and this paper is generally fixed, and does not need to change; The second layer is placed the target test paper that can change at any time, because the target test paper of this size has two kinds of needs to change mutually; Place two less target test papers for the 3rd layer, because two needs use simultaneously, so this two mapping test paper of opening one's eyes wide is placed on the front and back of pole.Collapsible in the time of unwanted, folding direction is shown in S1 and S2 among Fig. 2.When using ground floor target test paper, the glass that the second layer is posted the target test paper takes off, and the 3rd layer of lower carriage that is placed with the target test paper pushed away to fold up by S1 and S2 direction gently gets final product; When using second layer target test paper, the second layer is posted target test paper glass put, and the 3rd laminating is had the lower carriage of target test paper push away gently to fold up to get final product by S1 and S2 direction; When using the 3rd layer of target test paper, as long as have the lower carriage of target test paper to leave behind gently and can use the 3rd laminating.So just finished the exchange of whole target test paper.
Aspect measuring distance, be on the basis that the target test paper is placed according to classification, to add a jacking gear to carry out distance fine regulation, see accompanying drawing 2.Measuring distance=L1+L3 or measuring distance=L2+L3.Use layer during the combining target test paper more just can satisfy the testing requirement of different distance.
Two, operation steps: mention the test condition difference of shooting module in test of different model (depending primarily on brilliant unit) in front.Be divided into two big classes but test condition differs greatly on the whole: 300,000 pixel camera module test conditions and 1,300,000 pixel module test conditions.
Specifically describe its operation steps below:
1, the test of 300,000 pixel camera modules:
(1) focusing test, as shown in Figure 3:
Step 1: open light source;
Step 2: the target test paper on the medium-height trestle 3 is replaced with corresponding target test paper;
Step 3: lower carriage pushed away gently fold up;
Step 4: the measuring distance according to the shooting module is regulated elevating mechanism, makes the measuring distance (measuring distance=L2+L3) equate with actual measuring distance of making a video recording module of test lamp box;
Step 5: the module a that will make a video recording is put in the middle part of lamp box underframe 7, the focusing of being correlated with test.
(2) functional test, as shown in Figure 5:
Step 1: lower carriage is left behind gently, as the target test paper;
Step 2: carry out the correlation function test.
(3) image measurement, as shown in Figure 3:
Step 1: lower carriage pushed away gently fold up;
Step 2: the module a that will make a video recording is put in the middle part of lamp box underframe 7, carries out the test of associated picture.
Step 3: close light source.
2, the test of 1,300,000 pixel camera modules:
(1) focusing test, as shown in Figure 4:
Step 1: open light source;
Step 2: the glass that posts the target test paper on the medium-height trestle 2 is taken off, utilize target test paper on the upper bracket 1 as test target paper;
Step 3: lower carriage pushed away gently fold up;
Step 4: the measuring distance according to the shooting module is regulated jacking gear, makes the measuring distance (measuring distance=L1+L3) equate with actual measuring distance of making a video recording module of test lamp box;
Step 5: the module a that will make a video recording is put in the middle part of lamp box underframe 7, the focusing of being correlated with test.
(2) functional test, as shown in Figure 5:
Step 1: lower carriage is left behind gently, as the target test paper;
Step 2: the module a that will make a video recording is put in the middle part of lamp box underframe 7, carries out the correlation function test.
(3) image measurement, as shown in Figure 3:
Step 1: on medium-height trestle 2, place the respective objects test paper as the current goal test paper;
Step 2: lower carriage pushed away gently fold up;
Step 3: the module a that will make a video recording is put in the middle part of lamp box underframe 7, carries out the test of associated picture;
Step 4: close light source.
Claims (8)
1, mobile telephone photographic module universal testing lamp box, it is characterized in that: elevating mechanism is installed in the middle and lower part in frame (11), on elevating mechanism, connect underframe (7), install support (1) in the upper end of frame (11), in the below near upper bracket (1) is the medium-height trestle (3) that is installed on the frame (11), between medium-height trestle (3) and underframe (7),, go up the installation light source at underframe (7) for being installed on the lower carriage on the frame (11).
2, mobile telephone photographic module universal testing lamp box as claimed in claim 1 is characterized in that: upper bracket (1), medium-height trestle (3) and underframe (7) are respectively polygonal frame, and are parallel to each other.
3, mobile telephone photographic module universal testing lamp box as claimed in claim 1 is characterized in that: the frontal plane of projection of upper bracket (1) forms inclined-plane (2) greater than the frontal plane of projection of medium-height trestle (3) between the sidewall of upper bracket (1) and medium-height trestle (3).
4, mobile telephone photographic module universal testing lamp box as claimed in claim 1 is characterized in that: lower carriage is made up of two cross bars (4) and two montants (5), and every cross bar (4) connects into the L type with corresponding montant (5).
5, mobile telephone photographic module universal testing lamp box as claimed in claim 1 is characterized in that: two blocks of glass are arranged on medium-height trestle (3), be provided for the stator (12) of Locating Glass in the both sides of medium-height trestle (3) respectively.
6, mobile telephone photographic module universal testing lamp box as claimed in claim 1, it is characterized in that: the frame (11) in underframe (7) top goes up and connects crossbearer (6), light source has two groups, first group of light source is installed on the both sides between upper bracket (1) and the medium-height trestle (3), and second group of light source is installed on the both sides on the crossbearer (6).
7, mobile telephone photographic module universal testing lamp box as claimed in claim 1, it is characterized in that: in elevating mechanism, tooth bar (8) is arranged in the guiding mechanism that is installed on the frame (11), and with the gearing mesh that is installed in the rotating shaft (9), the upper end of tooth bar (8) is connected with underframe (7), in the outer end of rotating shaft (9) handwheel (10) is arranged.
8, utilize the method for testing of the described mobile telephone photographic module universal testing lamp box of claim 1-7, it is characterized in that,
A, setup test paper: on the ground floor that forms by upper bracket (1), place a bigger test paper; On the second layer that forms by medium-height trestle (3), place the test paper that to change at any time; On the 3rd layer of forming, place two less test papers by lower carriage;
B, prepare module to be measured: the middle part that module to be tested is put into underframe (7);
C, adjust test paper on request: when using the ground floor test paper, second layer test paper is taken off, and upwards push away the 3rd layer of test paper folded; When using second layer test paper, second layer test paper is put, and upwards pushed away the 3rd layer of test paper folded; When using the 3rd layer of test paper, the lower carriage of placing the 3rd layer of test paper is left behind, finish the exchange of whole test paper;
D, adjustment measuring distance: according to the module of reality test, open light source, utilize the distance between elevating mechanism adjusting target test paper and module to be tested.
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| CN101630119B (en) * | 2008-07-17 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Glare testing device |
| CN106324976B (en) * | 2015-07-03 | 2019-04-05 | 群光电子股份有限公司 | Test system and test method |
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| US20040189812A1 (en) * | 2003-03-27 | 2004-09-30 | Dialog Semiconductor Gmbh | Test system for camera modules |
| JP2005037342A (en) * | 2003-07-18 | 2005-02-10 | Koodotekku:Kk | Lens measuring device |
| US20060038910A1 (en) * | 2004-08-17 | 2006-02-23 | Dialog Semiconductor Gmbh | Testing of miniaturized digital camera modules with electrical and/or optical zoom functions |
| CN1793811A (en) * | 2005-10-28 | 2006-06-28 | 中国水电顾问集团中南勘测设计研究院 | Quantization detecting method for digital camera |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040189812A1 (en) * | 2003-03-27 | 2004-09-30 | Dialog Semiconductor Gmbh | Test system for camera modules |
| JP2005037342A (en) * | 2003-07-18 | 2005-02-10 | Koodotekku:Kk | Lens measuring device |
| US20060038910A1 (en) * | 2004-08-17 | 2006-02-23 | Dialog Semiconductor Gmbh | Testing of miniaturized digital camera modules with electrical and/or optical zoom functions |
| CN1793811A (en) * | 2005-10-28 | 2006-06-28 | 中国水电顾问集团中南勘测设计研究院 | Quantization detecting method for digital camera |
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