CN106851257A - The assemble method of camera lens to be assembled and image sensor - Google Patents
The assemble method of camera lens to be assembled and image sensor Download PDFInfo
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- CN106851257A CN106851257A CN201611225991.9A CN201611225991A CN106851257A CN 106851257 A CN106851257 A CN 106851257A CN 201611225991 A CN201611225991 A CN 201611225991A CN 106851257 A CN106851257 A CN 106851257A
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- test
- image sensor
- card
- assembled
- test card
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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
Abstract
The invention discloses a kind of camera lens to be assembled and the assemble method of image sensor, the method includes：At least two test cards are provided, wherein, at least two test points are provided with each test card；At least two test cards and image sensor are placed in parallel, and the center overlapping of axles of the central shaft of each test card and image sensor, wherein, a test point at least two test points on each test card is located on the central shaft of image sensor, the center of camera lens when remaining test point on a test card at least two test cards passes through lens assembling to be assembled qualified with the line of remaining on other test cards being arranged at least two test cards, corresponding test point respectively；Test point on each test card is imaged；According to the imaging of test point, judge whether camera lens to be assembled assembles with image sensor qualified.
Description
Technical field
The present invention relates to camera module technical field, more particularly, to a kind of camera lens to be assembled and image sensor
Assemble method.
Background technology
In camera module assembling process, camera lens is most important with the confirmation of the relative position of image sensor.Fig. 1 shows
Position view both when camera lens is qualified with the assembling of image sensor, referring to Fig. 1, camera lens 110 and image sensor 120
It is parallel to each other, and the central axis (dotted line shown in Fig. 1) of camera lens 110 (shows with the central axis of image sensor in Fig. 1
Dotted line) overlap.
In the prior art, the assembling of camera lens and image sensor is generally completed using test card, on the test card
It is provided with resolution chart.Fig. 2 shows the assembling schematic diagram of camera lens in the prior art and image sensor, referring to Fig. 2, in image
The front of sensor 120 is provided with a test card 130, before being assembled to camera lens, it should be ensured that test card 130 and shadow
As sensor 120 is parallel to each other, after the relative position of test card 130 and image sensor 120 meets the requirements, by a light
Source is irradiated to test card 130, after light is through test card 130 and camera lens 110, by the test chart on test card 130
Shape is imaged on image sensor, and it is qualified to judge whether camera lens 110 assembles with image sensor 120 according to the imaging.But
It is resolution chart mostly cross, the grid etc. on test card, makes complex.
The content of the invention
It is an object of the present invention to provide a kind of camera lens to be assembled and the new technology side of the assemble method of image sensor
Case.
According to an aspect of the invention, there is provided the assemble method of a kind of camera lens to be assembled and image sensor, including：
At least two test cards are provided, wherein, at least two test points are provided with each test card；
At least two test card and the image sensor are placed in parallel, and in described each test card
The center overlapping of axles of heart axle and the image sensor, wherein, at least two test points on described each test card
One test point is located on the central shaft of the image sensor, on a test card at least two test card
Remaining test point respectively with remaining on other test cards being arranged at least two test card, corresponding
Test point camera lens of the line through the lens assembling to be assembled when qualified center；
Test point on described each test card is imaged；
According to the imaging of the test point, judge whether the camera lens to be assembled assembles with the image sensor qualified.
Alternatively, the test point on described each test card is imaged, including：
The shelter for preventing light from passing through is provided in test point on described each test card, using a light source
Shelter on described each test card is imaged on the image sensor.
Alternatively, the test point on described each test card is imaged, including：
Test point on described each test card is respectively provided with a light source, by the light source on the image sensor
It is imaged.
Alternatively, according to the imaging of the test point, judge the camera lens to be assembled whether with the image sensor group
It is qualified to fill, including：
If the test point on each test card described on the central shaft of the image sensor is in the image
Remaining test point on a test card being imaged as in a test point, and at least two test card of sensor
It is imaged with remaining on other test cards being arranged at least two test card, corresponding test point respectively
During for a test point, it is determined that it is qualified that the camera lens to be assembled is assembled with the image sensor；
If the test point on each test card described on the central shaft of the image sensor is in the image
Sensor is imaged as two test points, or, remaining survey on a test card at least two test card
Pilot respectively with remaining on other test cards being arranged at least two test card, corresponding test point
When being imaged as two test points, it is determined that the camera lens to be assembled assembles unqualified with the image sensor.
Alternatively, if the test point on each test card described on the central shaft of the image sensor is in institute
That states image sensor is imaged as two test points, it is determined that occur when the camera lens to be assembled is assembled with the image sensor
Skew；
If remaining test point on a test card at least two test card respectively be arranged on it is described
On other test cards at least two test cards remaining, corresponding test point be imaged as two test points, then
Rotated when determining that the camera lens to be assembled is assembled with the image sensor.
Alternatively, methods described is provided with two test cards, and three test points are provided with each test card.
Alternatively, the method is applied to the assembling of double camera lenses to be assembled.
Camera lens to be assembled and the assemble method of image sensor that the present invention is provided, by providing at least two test cards
Piece, at least provided with two test points on each test card, and test point on each test card is entered according to following position
Row is set, i.e., a test point on each test card is located on the central shaft of image sensor, at least two test cards
In a test card on remaining test point respectively with other test cards being arranged at least two test cards on
Remaining, the center of the camera lens to be assembled of the line of corresponding test point through lens assembling to be assembled when qualified, relatively
In prior art, the present invention need not again set the resolution chart of complexity, simple to operate, in addition, according to the image-wise of test point
Condition, can quickly determine camera lens to be assembled assembling when there are abnormal conditions the reason for.
By referring to the drawings to the detailed description of exemplary embodiment of the invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used to explain principle of the invention together with its explanation.
Position view both when Fig. 1 shows that the assembling of camera lens and image sensor is qualified.
Fig. 2 shows the assembling schematic diagram of camera lens in the prior art and image sensor.
Fig. 3 shows the treatment of camera lens to be assembled according to an embodiment of the invention and the assemble method of image sensor
Flow chart.
Fig. 4 shows the assembling schematic diagram of camera lens to be assembled according to an embodiment of the invention and image sensor.
Specific embodiment
Describe various exemplary embodiments of the invention in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value for otherwise illustrating in these embodiments do not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or use.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In all examples shown here and discussion, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further discussed in subsequent accompanying drawing.
The invention provides a kind of camera lens to be assembled and the assemble method of image sensor.Fig. 3 is shown according to the present invention
The process chart of the camera lens to be assembled of one embodiment and the assemble method of image sensor.Referring to Fig. 3, the method is at least wrapped
Include step S302 to step S308.
Step S302, there is provided at least two test cards, wherein, at least two tests are provided with each test card
Point；
Step S304, at least two test cards and image sensor are placed in parallel, and each test card center
The center overlapping of axles of axle and image sensor, wherein, a test point at least two test points on each test card
On the central shaft of image sensor, remaining test point on a test card at least two test cards respectively with
Be arranged on other test cards at least two test cards remaining, the line of corresponding test point is through treating group
The center of the camera lens to be assembled when dress lens assembling is qualified；
Step S306, the test point on each test card is imaged；
Step S308, according to the imaging of test point, judges whether camera lens to be assembled assembles with image sensor qualified.
Camera lens to be assembled and the assemble method of image sensor that the present invention is provided, by providing at least two test cards
Piece, at least provided with two test points on each test card, and test point on each test card is entered according to following position
Row is set, i.e., a test point on each test card is located on the central shaft of image sensor, at least two test cards
In a test card on remaining test point respectively with other test cards being arranged at least two test cards on
Remaining, the center of the camera lens to be assembled of the line of corresponding test point through lens assembling to be assembled when qualified, relatively
In prior art, the present invention need not again set the resolution chart of complexity, simple to operate, in addition, according to the image-wise of test point
Condition, can quickly determine camera lens to be assembled assembling when there are abnormal conditions the reason for.
In above-mentioned steps S306, the test point on each test card is imaged, following any one mode can be used.
First way, the test point on each test card is provided for the shelter for preventing light from passing through, then
One light source is provided, each test card is irradiated using the light source, because shelter can prevent the light that the light source sends from passing through, because
This generates the corresponding imaging of above-mentioned test point on image sensor.
The second way, the test point on each test card is respectively provided with a light source, and each light source can be in image sensing
It is imaged on device.
In the embodiment of the present invention, the imaging situation according to test point that above-mentioned steps S308 is related to judges camera lens to be assembled
Whether qualified, if specifically, on each test card on the central shaft of image sensor if being assembled with image sensor
Test point image sensor the test point that is imaged as, and its on a test card at least two test cards
Remaining test point respectively with remaining on other test cards being arranged at least two test cards, corresponding test point
When being imaged as a test point, it is determined that it is qualified that camera lens to be assembled is assembled with image sensor；If in image sensor
The test point on each test card on heart axle image sensor two test points that are imaged as, or, at least two survey
Remaining test point on a test card in examination card respectively with other tests being arranged at least two test cards
On card remaining, corresponding test point is when being imaged as two test points, it is determined that camera lens to be assembled and image sensor
Assembling is unqualified.
The camera lens to be assembled for being provided the present invention with a specific embodiment below is made with the assemble method of image sensor
Further illustrate.Fig. 4 shows the assembling schematic diagram of camera lens to be assembled according to an embodiment of the invention and image sensor.
Image sensor 410, camera lens to be assembled 420, the first test card 430a and the second test card are shown referring to Fig. 4, in figure
430b.First test card 430a, the second test card 430b are disposed as it is parallel with image sensor 410, and each survey
Try the central shaft of card and the center overlapping of axles of image sensor 410.In addition, the first test card 430a is provided with three tests
Point (i.e. A points, C points, E points), the second test card 430b is provided with three test points (B points, D points, F points), wherein, the first test
The test point B on test point A and the second test card 430b on card 430a is respectively positioned on the central shaft of image sensor 410
On, the line of the test point D on test point C and the second test card 430b on the first test card 430a passes through mirror to be assembled
The center of camera lens when head assembling is qualified, the survey on test point E and the second test card 430b on the first test card 430a
The center of camera lens of the line of pilot F through lens assembling to be assembled when qualified.
Camera lens to be assembled 420 is carried out when using the first test card 430a and the second test card 430b shown in Fig. 4
During assembling, a light source is provided with front of the second test card 430b, using the light source to the first test card 430a and
Two test card 430b are irradiated, the light beam that light source is projected through the first test card 430a, the second test card 430b and
After camera lens to be assembled 420, the test point set on the first test card 430a and the second test card 430b is imaged.
If the test point B on test point A and the second test card 430b on the first test card 430a is in image sensing
On the test point C and the second test card 430b that are imaged as in a test point, and the first test card 430a on device 410
Test point D is imaged as a test point, the test point E and second on the first test card 430a on image sensor 410
Test point F on test card 430b is imaged as a test point on image sensor 410, it is determined that camera lens to be assembled
420 assembled with image sensor 410 it is qualified.
If the test point B on test point A and the second test card 430b on the first test card 430a is in image sensing
On the test point C and the second test card 430b that are imaged as in two test points, or the first test card 430a on device 410
Test point D be imaged as two test points on image sensor 410, the test point E on the first test card 430a and
Test point F on two test card 430b on image sensor 410 when being imaged as two test points, it is determined that mirror to be assembled
First 420 assembled with image sensor 410 it is unqualified.
If the test point B on test point A and the second test card 430b on the first test card 430a is in image sensing
Two test points are imaged as on device 410, then camera lens to be assembled 420 can be determined when being assembled with image sensor 410
Shift so that both central axis do not overlap, and then the assembling of camera lens to be assembled can be adjusted correspondingly.
If the test point D on test point C and the second test card 430b on the first test card 430a is in image sensing
Two test points are imaged as on device 410, the survey on test point E and the second test card 430b on the first test card 430a
Pilot F on image sensor 410 when being imaged as two test points, then can determine that camera lens to be assembled 420 is passed with image
Sensor 410 is rotated when being assembled, and then the assembling of camera lens to be assembled can be adjusted correspondingly.
It should be noted that, the quantity of test card in embodiment and test point shown in Fig. 4 is merely possible to one
Individual example, any restriction is not caused to the present invention.
The camera lens to be assembled that the present invention is provided applies also for the group of double camera lenses to be assembled with the assemble method of image sensor
Dress, specific process step can refer to the operating procedure of above-described embodiment offer, in this regard, the present invention does not make excessively to repeat.
Although being described in detail to some specific embodiments of the invention by example, the skill of this area
Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (7)
1. the assemble method of a kind of camera lens to be assembled and image sensor, it is characterised in that including：
At least two test cards are provided, wherein, at least two test points are provided with each test card；
At least two test card and the image sensor are placed in parallel, and each test card central shaft
With the center overlapping of axles of the image sensor, wherein, one at least two test points on described each test card
Test point is located on the central shaft of the image sensor, its on a test card at least two test card
Remaining test point respectively with remaining on other test cards being arranged at least two test card, corresponding survey
The center of the camera lens when line of pilot passes through the lens assembling to be assembled qualified；
Test point on described each test card is imaged；
According to the imaging of the test point, judge whether the camera lens to be assembled assembles with the image sensor qualified.
2. method according to claim 1, it is characterised in that carry out into the test point on described each test card
Picture, including：
It is provided for preventing the shelter that passes through of light in test point on described each test card, using a light source by institute
The shelter stated on each test card is imaged on the image sensor.
3. method according to claim 1, it is characterised in that carry out into the test point on described each test card
Picture, including：
Test point on described each test card is respectively provided with a light source, and the light source is carried out on the image sensor
Imaging.
4. method according to claim 1, it is characterised in that according to the imaging of the test point, judge described to be assembled
It is qualified whether camera lens assembles with the image sensor, including：
If the test point on each test card described on the central shaft of the image sensor is in the image sensing
Remaining test point difference on a test card being imaged as in a test point, and at least two test card of device
One is imaged as with remaining on other test cards being arranged at least two test card, corresponding test point
During individual test point, it is determined that it is qualified that the camera lens to be assembled is assembled with the image sensor；
If the test point on each test card described on the central shaft of the image sensor is in the image sensing
Device is imaged as two test points, or, remaining test point on a test card at least two test card
It is imaged with remaining on other test cards being arranged at least two test card, corresponding test point respectively
During for two test points, it is determined that the camera lens to be assembled assembles unqualified with the image sensor.
5. method according to claim 4, it is characterised in that if described on the central shaft of the image sensor
Test point on each test card is imaged as two test points in the image sensor, it is determined that the camera lens to be assembled
Shifted when being assembled with the image sensor；
If remaining test point on a test card at least two test card respectively be arranged on it is described at least
On other test cards in two test cards remaining, corresponding test point be imaged as two test points, it is determined that
The camera lens to be assembled is rotated when being assembled with the image sensor.
6. method according to claim 1, it is characterised in that methods described is provided with two test cards, and each is surveyed
Three test points are provided with examination card.
7. according to any described methods of claim 1-6, it is characterised in that the method is applied to the group of double camera lenses to be assembled
Dress.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225991.9A CN106851257B (en) | 2016-12-27 | 2016-12-27 | The assemble method of camera lens and image sensor to be assembled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225991.9A CN106851257B (en) | 2016-12-27 | 2016-12-27 | The assemble method of camera lens and image sensor to be assembled |
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| CN106851257B CN106851257B (en) | 2018-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761994A (en) * | 2018-05-31 | 2018-11-06 | 歌尔股份有限公司 | The detection method and device of the assembling of camera module and virtual reality device |
| CN109839061A (en) * | 2017-11-24 | 2019-06-04 | 成都市极米科技有限公司 | A kind of lens module detection method and system |
| CN113064247A (en) * | 2021-03-29 | 2021-07-02 | 南昌欧菲光电技术有限公司 | Multi-lens group shooting lens correction method and detection system |
| CN113820100A (en) * | 2021-09-30 | 2021-12-21 | 彩晶光电科技(昆山)有限公司 | Lens detection system for detecting lens |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012960A (en) * | 2002-06-10 | 2004-01-15 | Fuji Photo Film Co Ltd | Relative position adjusting method for imaging device and photographing lens, and imaging device |
| CN1624515A (en) * | 2003-12-05 | 2005-06-08 | 鸿富锦精密工业（深圳）有限公司 | Digital camera lens mould set regulating method |
| CN1862304A (en) * | 2005-05-11 | 2006-11-15 | 奥林巴斯映像株式会社 | Decline measuring device for imaging element and its measuring method |
| CN102789111A (en) * | 2011-05-19 | 2012-11-21 | 华晶科技股份有限公司 | Lens calibration system and method thereof |
| KR101442106B1 (en) * | 2013-02-15 | 2014-09-18 | 삼성전기주식회사 | Apparatus and method for testing camera module |
| CN105338233A (en) * | 2015-12-04 | 2016-02-17 | 中国航空工业集团公司洛阳电光设备研究所 | Camera assembling adjusting and calibrating method |
| 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 |
-
2016
- 2016-12-27 CN CN201611225991.9A patent/CN106851257B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012960A (en) * | 2002-06-10 | 2004-01-15 | Fuji Photo Film Co Ltd | Relative position adjusting method for imaging device and photographing lens, and imaging device |
| CN1624515A (en) * | 2003-12-05 | 2005-06-08 | 鸿富锦精密工业（深圳）有限公司 | Digital camera lens mould set regulating method |
| CN1862304A (en) * | 2005-05-11 | 2006-11-15 | 奥林巴斯映像株式会社 | Decline measuring device for imaging element and its measuring method |
| CN102789111A (en) * | 2011-05-19 | 2012-11-21 | 华晶科技股份有限公司 | Lens calibration system and method thereof |
| KR101442106B1 (en) * | 2013-02-15 | 2014-09-18 | 삼성전기주식회사 | Apparatus and method for testing camera module |
| 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 |
| CN105338233A (en) * | 2015-12-04 | 2016-02-17 | 中国航空工业集团公司洛阳电光设备研究所 | Camera assembling adjusting and calibrating method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839061A (en) * | 2017-11-24 | 2019-06-04 | 成都市极米科技有限公司 | A kind of lens module detection method and system |
| CN108761994A (en) * | 2018-05-31 | 2018-11-06 | 歌尔股份有限公司 | The detection method and device of the assembling of camera module and virtual reality device |
| CN108761994B (en) * | 2018-05-31 | 2020-11-20 | 歌尔光学科技有限公司 | Detection method and device for assembly of camera module and virtual reality equipment |
| CN113064247A (en) * | 2021-03-29 | 2021-07-02 | 南昌欧菲光电技术有限公司 | Multi-lens group shooting lens correction method and detection system |
| CN113820100A (en) * | 2021-09-30 | 2021-12-21 | 彩晶光电科技(昆山)有限公司 | Lens detection system for detecting lens |
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| CN106851257B (en) | 2018-12-14 |
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Effective date of registration: 20201014 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee before: GOERTEK Inc. |