CN106768869A - A kind of mobile phone camera module brightness uniformity method of testing - Google Patents
A kind of mobile phone camera module brightness uniformity method of testing Download PDFInfo
- Publication number
- CN106768869A CN106768869A CN201610927826.1A CN201610927826A CN106768869A CN 106768869 A CN106768869 A CN 106768869A CN 201610927826 A CN201610927826 A CN 201610927826A CN 106768869 A CN106768869 A CN 106768869A
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- China
- Prior art keywords
- mobile phone
- camera module
- phone camera
- brightness
- brightness uniformity
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
It is an object of the invention to provide a kind of mobile phone camera module brightness uniformity method of testing, by the way that first the parameter of camera module is adjusted to most preferably, mobile phone is adjusted to automatic mode afterwards, DNP standard sources is faced afterwards apart from 1cm, make the light-emitting area that mobile phone camera module preview interface is uniform source of light, post analysis brightness uniformity, so Detection results are excellent can be detected to mobile phone camera brightness uniformity well.
Description
Technical field
Surveyed the present invention relates to the detection field of mobile phone camera, more particularly to a kind of mobile phone camera module brightness uniformity
Method for testing.
Background technology
With continuing to develop for science and technology, the function of the camera of mobile phone is more and more important.There are camera module, hand in mobile phone
Machine camera module is formed by assembling parts, and every test must be carried out to it after camera module production is finished, and test reaches
Mark can dispatch from the factory.One of which test is exactly brightness uniformity test, at present for the test imperfection of brightness uniformity, therefore
Solve this problem and just seem very necessary.
The content of the invention
To solve the above problems, the present invention provides a kind of mobile phone camera module brightness uniformity method of testing, by elder generation
The parameter of camera module is adjusted to most preferably, mobile phone to be adjusted into automatic mode afterwards, DNP standard sources distances are faced afterwards
1cm, make mobile phone camera module preview interface be uniform source of light light-emitting area, post analysis brightness uniformity, so can be very
Detection results are excellent to be detected to mobile phone camera brightness uniformity well, produced problem in background technology is solved.
It is an object of the invention to provide a kind of mobile phone camera module brightness uniformity method of testing, following step is included
Suddenly：
Step one：By the parameter regulation of mobile phone camera module to optimal, the mobile phone open of optimal parameter will be downloaded, by what is taken pictures
Parameter is set to automatic mode, and resolution ratio of taking pictures is maximum；
Step 2：DNP standard sources is put into darkroom, it is ensured that darkroom brightness uniformity is noiseless；
Step 3：Mobile phone camera module is faced the fluorescent screen of DNP standard sources, distance is 1cm, makes cell-phone camera head mould
Group preview interface is the light-emitting area of uniform source of light, after being taken pictures after frame stabilization；
Step 4：With Imatest software analysis brightness homogeneities, the brightness value of middle section and four angular zones is read, calculate four
The ratio of the brightness value sum of angular zone and four times of middle section brightness value.
Further improvement is that：The brightness value sum of the angular zone of the step 4 four and four times of middle section brightness value
Ratio is more than 70%, less than 100%.
Further improvement is that：The illumination of the DNP standard sources is 600 Lux ± 100 Lux.
Further improvement is that：The DNP standard sources can be replaced the highly consistent middle ash plate of surface brightness or
Middle ash lamp box tank wall.
Beneficial effects of the present invention：By the way that first be adjusted to for the parameter of camera module most preferably, afterwards to adjust mobile phone by the present invention
It is automatic mode, DNP standard sources is faced afterwards apart from 1cm, makes mobile phone camera module preview interface be uniform source of light
Light-emitting area, post analysis brightness uniformity, so mobile phone camera brightness uniformity can be detected well, detection effect
It is really excellent.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, the embodiment
It is only used for explaining the present invention, is not intended to limit the scope of the present invention..
The present embodiment provides a kind of mobile phone camera module brightness uniformity method of testing, includes following steps：
Step one：By the parameter regulation of mobile phone camera module to optimal, the mobile phone open of optimal parameter will be downloaded, by what is taken pictures
Parameter is set to automatic mode, and resolution ratio of taking pictures is maximum；
Step 2：DNP standard sources is put into darkroom, it is ensured that darkroom brightness uniformity is noiseless；
Step 3：Mobile phone camera module is faced the fluorescent screen of DNP standard sources, distance is 1cm, makes cell-phone camera head mould
Group preview interface is the light-emitting area of uniform source of light, after being taken pictures after frame stabilization；
Step 4：With Imatest software analysis brightness homogeneities, the brightness value of middle section and four angular zones is read, calculate four
The ratio of the brightness value sum of angular zone and four times of middle section brightness value.
The ratio of the brightness value sum of the angular zone of the step 4 four and four times of middle section brightness value more than 70%, it is small
In 100%.The illumination of the DNP standard sources is 600 Lux.It is highly consistent that the DNP standard sources can be replaced surface brightness
Middle ash plate or middle ash lamp box tank wall.
By being first adjusted to the parameter of camera module most preferably, mobile phone to be adjusted into automatic mode afterwards, DNP is faced afterwards
Standard sources makes the light-emitting area that mobile phone camera module preview interface is uniform source of light apart from 1cm, post analysis brightness uniformity
Property, so mobile phone camera brightness uniformity can be detected well, Detection results are excellent.
Claims (4)
1. a kind of mobile phone camera module brightness uniformity method of testing, it is characterised in that：Include following steps：
Step one：By the parameter regulation of mobile phone camera module to optimal, the mobile phone open of optimal parameter will be downloaded, by what is taken pictures
Parameter is set to automatic mode, and resolution ratio of taking pictures is maximum；
Step 2：DNP standard sources is put into darkroom, it is ensured that darkroom brightness uniformity is noiseless；
Step 3：Mobile phone camera module is faced the fluorescent screen of DNP standard sources, distance is 1cm, makes cell-phone camera head mould
Group preview interface is the light-emitting area of uniform source of light, after being taken pictures after frame stabilization；
Step 4：With Imatest software analysis brightness homogeneities, the brightness value of middle section and four angular zones is read, calculate four
The ratio of the brightness value sum of angular zone and four times of middle section brightness value.
2. as claimed in claim 1 a kind of mobile phone camera module brightness uniformity method of testing, it is characterised in that：The step
The ratio of the brightness value sum of four or four angular zones and four times of middle section brightness value is more than 70%, less than 100%.
3. as claimed in claim 1 a kind of mobile phone camera module brightness uniformity method of testing, it is characterised in that：The DNP
The illumination of standard sources is 600 Lux ± 100 Lux.
4. as claimed in claim 1 a kind of mobile phone camera module brightness uniformity method of testing, it is characterised in that：The DNP
Standard sources can be replaced the highly consistent middle ash plate or middle ash lamp box tank wall of surface brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927826.1A CN106768869A (en) | 2016-10-31 | 2016-10-31 | A kind of mobile phone camera module brightness uniformity method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927826.1A CN106768869A (en) | 2016-10-31 | 2016-10-31 | A kind of mobile phone camera module brightness uniformity method of testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768869A true CN106768869A (en) | 2017-05-31 |
Family
ID=58972425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610927826.1A Pending CN106768869A (en) | 2016-10-31 | 2016-10-31 | A kind of mobile phone camera module brightness uniformity method of testing |
Country Status (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925623A (en) * | 2006-09-25 | 2007-03-07 | 华为技术有限公司 | Even method for luminance of mobile phone camera |
| CN203057310U (en) * | 2012-12-30 | 2013-07-10 | 金龙机电（东莞）有限公司 | A cell phone camera module |
| CN203340224U (en) * | 2013-07-23 | 2013-12-11 | 江阴新晟电子有限公司 | Testing device for mobile-phone camera module groups |
| CN103763546A (en) * | 2013-12-25 | 2014-04-30 | 宁波舜宇光电信息有限公司 | Light source difference correction method for monomer correction of mobile phone camera |
| CN204013928U (en) * | 2014-05-30 | 2014-12-10 | 惠州市桑莱士光电有限公司 | A kind of mobile phone camera module universal testing device |
| CN105991996A (en) * | 2015-02-15 | 2016-10-05 | 宁波舜宇光电信息有限公司 | Detection system and detection method for camera module group |
-
2016
- 2016-10-31 CN CN201610927826.1A patent/CN106768869A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925623A (en) * | 2006-09-25 | 2007-03-07 | 华为技术有限公司 | Even method for luminance of mobile phone camera |
| CN203057310U (en) * | 2012-12-30 | 2013-07-10 | 金龙机电（东莞）有限公司 | A cell phone camera module |
| CN203340224U (en) * | 2013-07-23 | 2013-12-11 | 江阴新晟电子有限公司 | Testing device for mobile-phone camera module groups |
| CN103763546A (en) * | 2013-12-25 | 2014-04-30 | 宁波舜宇光电信息有限公司 | Light source difference correction method for monomer correction of mobile phone camera |
| CN204013928U (en) * | 2014-05-30 | 2014-12-10 | 惠州市桑莱士光电有限公司 | A kind of mobile phone camera module universal testing device |
| CN105991996A (en) * | 2015-02-15 | 2016-10-05 | 宁波舜宇光电信息有限公司 | Detection system and detection method for camera module group |
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Application publication date: 20170531 |