CN102004390A - Lens module detection system and detection method thereof - Google Patents
Lens module detection system and detection method thereof Download PDFInfo
- Publication number
- CN102004390A CN102004390A CN2009103062352A CN200910306235A CN102004390A CN 102004390 A CN102004390 A CN 102004390A CN 2009103062352 A CN2009103062352 A CN 2009103062352A CN 200910306235 A CN200910306235 A CN 200910306235A CN 102004390 A CN102004390 A CN 102004390A
- Authority
- CN
- China
- Prior art keywords
- lens module
- camera lens
- detection system
- light source
- recording device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a lens module detection system. The detection system is used to detect the dip angle between a lens barrel and the movable barrel of a voice coil motor in the lens module. The detection system comprises a light source device and an analysis device, wherein the light source device contains a light source and a position recording device; the light source is used to emit a laser beam into the gap between the lens barrel and the movable barrel of the voice coil motor; the emitted laser beam is reflected to the position recording device by the outer side wall of the lens barrel, and a light spot is formed on the recording device; the position recording device records the position of the light spot; the analysis device is used to analyze whether the relative offset of the light spot to the laser beam sending position of the light source is in the an allowed error range; and the lens module detection system is utilized to detect the dip angle between the lens barrel and the voice coil motor in the lens module. Therefore, the product quality of the lens module can be increased.
Description
Technical field
The present invention relates to a kind of camera lens module detection system and detection method thereof.
Background technology
In recent years, along with the development of optical articles, the range of application of camera lens module continue to enlarge, as digital camera, have the electronic products such as mobile phone of camera function.For electronic product, consumption electronic products particularly, its development trend is lightweight and slimming, the camera lens module of relative set in it also becomes more and more littler, requirement to precision is also more and more higher, so the packaging technology of camera lens module also needs higher degree of accuracy and stability, to guarantee production efficiency and yield.Yet, in the process of assembling, may be because contraposition be inaccurate, or product tolerance, after the camera lens module screws in the movable tube of voice coil motor, between camera lens module and movable tube, can have certain inclination angle more or less, however the size at this inclination angle be difficult to measure with conventional angle measurement unit, and whether the inclination angle could judged after must be through measurement within the error range that can allow.Make the focusing of camera lens module inaccurate if conference is crossed at described inclination angle, influenced product quality.How to realize simply and easily thus the inclination angle detection between camera lens module and the voice coil motor is become this area problem demanding prompt solution.
Summary of the invention
In view of this, be necessary to provide a kind of detection system and detection method thereof that can the detector lens module.
A kind of camera lens module detection system, this detection system are used for the inclination angle between the movable tube of the lens barrel of detector lens module and voice coil motor, and this detection system comprises:
One light supply apparatus comprises a light source and a position recording device, light source is used to give off laser beam, and be radiated at gap between the movable tube of lens barrel and voice coil motor, this laser beam of sending reflexes to position recording device through the lateral wall of lens barrel, and on this pen recorder, form the hot spot point, position recording device writes down this hot spot point position, calculates this hot spot point simultaneously and sends the distance of the position of light beam with described light source;
One analytical equipment is used to analyze this hot spot point and light source and sends the distance of position relativity shift of light beam whether in the error allowed band.
With respect to prior art, lens barrel and voice coil motor utilize above-mentioned camera lens module detection system to carry out inclination angle detection in the described camera lens module, therefore, can improve the product quality of camera lens module.
Description of drawings
Fig. 1 is the camera lens module detection system perspective view that embodiment of the present invention provides;
Fig. 2 is the working state schematic representation of the camera lens module detection system among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 1, be the camera lens module detection system 100 of embodiment of the present invention, it is used for the inclination angle of detector lens module 40.This camera lens module 40 comprises a voice coil motor 42 and a lens barrel 44.Described lens barrel 44 is sheathed in the movable tube 420 of voice coil motor 42.This camera lens module detection system 100 comprises a bogey 10, a light supply apparatus 20, an analytical equipment 30.
Described bogey 10 comprises that a load bearing seat 12 and is used to drive the actuator 14 of load bearing seat 12 rotations.Described load bearing seat 10 offers the accepting groove 120 of a tetragonal body, accommodates described camera lens module 40 to be detected when it is used to detect.The shape that is appreciated that accepting groove 120 is not limited to square, and it should be decided with the shape of camera lens module to be detected.In the present embodiment, described actuator 14 is a rotation motor, and it is used to drive described load bearing seat 10 rotations.
Usually be provided with eyeglass (figure does not show) in the lens barrel 44, so the optical axis of the camera lens module 40 in the present embodiment is the central shaft of lens barrel 44.Described light supply apparatus 20 comprises a light source 22, a position recording device 23 and a bracing or strutting arrangement 24.Described light source 22 is a laser.Described position recording device 23 is adjoined setting mutually with described light source 22.Described bracing or strutting arrangement 24 is used to support described light source 22 and position recording device 23, so that light source 22 be positioned at camera lens module 40 an end and with the optical axis deviation certain distance of described camera lens module 40, and the light that light source 22 is sent is parallel to the central shaft of lens barrel 44.This position recording device 23 is used to write down the position of being penetrated and be incident upon the hot spot of the light on the pen recorder 23 by described light source 22 after camera lens module 40 reflections to be detected.In the present embodiment, described light source 22 emitted light beams just are radiated in the gap between the movable tube 420 of lens barrel 44 and voice coil motor 42.Described position recording device 23 can be a light sensor, as charge-coupled image sensor (Charge Coupled Device, CCD) etc.
Described analytical equipment 30 electrically connects by a cable 35 and position recording device 23.In the present embodiment, described analytical equipment 30 is a computer.
During use, described light source 22 pairing location coordinate on position recording device 23 are made as reference origin O are recorded in the described position recording device 23.Described light source 22 gives off laser beam, and after being radiated at gap between the movable tube 420 of lens barrel 44 and voice coil motor 42, laser beam reflexes to position recording device 23 through the lateral wall of lens barrel 44, and forms a hot spot point O1 on this pen recorder 23.Described position recording device 23 this hot spot point of record O1 positions, calculating the position that this hot spot point O1 and described light source 22 send light beam simultaneously is the distance of reference origin O.Be preset with an acceptable preset range in the described analytical equipment 30, if the distance of relativity shift is in the acceptable preset range between this hot spot point O1 and the reference origin O, also be inclination angle between lens barrel 44 and the voice coil motor 42 in an acceptable preset range time, then analytical equipment 30 shows that these camera lens modules 40 to be detected are qualified.Offset distance between this hot spot point O1 and reference origin O is greater than predetermined value, also is inclination angle between lens barrel 44 and the voice coil motor 42 when exceeding in the acceptable preset range, and then analytical equipment 30 shows that these camera lens modules 40 to be detected are defective.Be understandable that described error allowed band can be provided with according to customer requirement.In the present embodiment, described error allowed band is between the 0-0.2 millimeter.
In order more accurately this camera lens module 40 to be measured, the user can carry out multiple spot and detect.Particularly, actuator 14 drives load bearing seats 12, so that lens barrel 44 is around the optical axis rotation of camera lens module 40, described light source 22 constantly gives off laser beam, the position of described position recording device 23 each reflected light spot of record.Described analytical equipment 30 analyze with distance reference initial point O farthest hot spot point position and the relativity shift between the reference origin O apart from whether in the error allowed band, if error surpasses the scope that allows, then analytical equipment 30 shows that this camera lens module 40 to be detected is defective.Otherwise it is qualified to show.
Those skilled in the art will be appreciated that; above embodiment only is to be used for illustrating the present invention; and be not to be used as limitation of the invention; as long as within connotation scope of the present invention, appropriate change and the variation that above embodiment did all dropped within the scope of protection of present invention.
Claims (8)
1. camera lens module detection system, this detection system are used for the inclination angle between the movable tube of the lens barrel of detector lens module and voice coil motor, and this detection system comprises:
One light supply apparatus comprises a light source and a position recording device, light source is used to give off laser beam, and be radiated at gap between the movable tube of lens barrel and voice coil motor, this laser beam of sending reflexes to position recording device through the lateral wall of lens barrel, and on this pen recorder, form the hot spot point, position recording device writes down this hot spot point position, calculates this hot spot point simultaneously and sends the distance of the position of light beam with described light source;
One analytical equipment is used to analyze this hot spot point and light source and sends the distance of position relativity shift of light beam whether in the error allowed band.
2. camera lens module detection system as claimed in claim 1, it is characterized in that: described light supply apparatus comprises that further a bracing or strutting arrangement is used to support described light source and position recording device, so that light source be positioned at the camera lens module an end and with the optical axis deviation certain distance of described camera lens module, and the light that light source is sent is parallel to the central shaft of lens barrel.
3. camera lens module detection system as claimed in claim 1 is characterized in that: described position recording device is a light sensor.
4. camera lens module detection system as claimed in claim 1 is characterized in that: described analytical equipment electrically connects by a cable and described position recording device.
5. camera lens module detection system as claimed in claim 1 is characterized in that: also comprise a bogey, described bogey comprises a load bearing seat, and described load bearing seat offers an accepting groove, accommodates described camera lens module when this accepting groove is used to detect.
6. camera lens module detection system as claimed in claim 5 is characterized in that: described bogey comprises that further one is used to drive the actuator of this load bearing seat rotation.
7. camera lens module detection system as claimed in claim 1, it is characterized in that: be preset with a preset range in the described analytical equipment, if this hot spot point and light source send the distance of relativity shift between the position of light beam in this preset range, it is qualified that then described analytical equipment is analyzed described camera lens module, otherwise described camera lens module is defective.
8. camera lens module detection system as claimed in claim 1, it is characterized in that: described light source and position recording device are adjoined setting mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910306235.2A CN102004390B (en) | 2009-08-28 | 2009-08-28 | Lens module detection system and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910306235.2A CN102004390B (en) | 2009-08-28 | 2009-08-28 | Lens module detection system and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102004390A true CN102004390A (en) | 2011-04-06 |
| CN102004390B CN102004390B (en) | 2013-11-06 |
Family
ID=43811857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910306235.2A Expired - Fee Related CN102004390B (en) | 2009-08-28 | 2009-08-28 | Lens module detection system and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102004390B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597193A (en) * | 2016-11-11 | 2017-04-26 | 歌尔股份有限公司 | Camera module group detection method, device and instrument |
| CN110023835A (en) * | 2017-09-25 | 2019-07-16 | 深圳市大疆如影科技有限公司 | Lens detecting device |
| CN111272394A (en) * | 2020-02-25 | 2020-06-12 | Oppo广东移动通信有限公司 | Test method and test system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233686A (en) * | 1995-02-24 | 1996-09-13 | Nikon Corp | Eccentricity measuring method and measuring device of aspheric surface |
| CN2535180Y (en) * | 2002-02-07 | 2003-02-12 | 武汉楚天激光（集团）股份有限公司 | Optical zoom apparatus of coaxial display and location measurement for laser processing |
| CN2919188Y (en) * | 2006-03-27 | 2007-07-04 | 西安北方光电有限公司 | Laser non-contact online detecting device |
| CN102145328A (en) * | 2011-04-22 | 2011-08-10 | 芜湖依维光电科技有限公司 | Automatic glue dispensing device for imaging lens |
-
2009
- 2009-08-28 CN CN200910306235.2A patent/CN102004390B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233686A (en) * | 1995-02-24 | 1996-09-13 | Nikon Corp | Eccentricity measuring method and measuring device of aspheric surface |
| CN2535180Y (en) * | 2002-02-07 | 2003-02-12 | 武汉楚天激光（集团）股份有限公司 | Optical zoom apparatus of coaxial display and location measurement for laser processing |
| CN2919188Y (en) * | 2006-03-27 | 2007-07-04 | 西安北方光电有限公司 | Laser non-contact online detecting device |
| CN102145328A (en) * | 2011-04-22 | 2011-08-10 | 芜湖依维光电科技有限公司 | Automatic glue dispensing device for imaging lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597193A (en) * | 2016-11-11 | 2017-04-26 | 歌尔股份有限公司 | Camera module group detection method, device and instrument |
| CN110023835A (en) * | 2017-09-25 | 2019-07-16 | 深圳市大疆如影科技有限公司 | Lens detecting device |
| CN111272394A (en) * | 2020-02-25 | 2020-06-12 | Oppo广东移动通信有限公司 | Test method and test system |
| CN111272394B (en) * | 2020-02-25 | 2022-05-20 | Oppo广东移动通信有限公司 | Test method and test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102004390B (en) | 2013-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10302749B2 (en) | LIDAR optics alignment systems and methods | |
| US9156168B2 (en) | Active alignment using continuous motion sweeps and temporal interpolation | |
| US10095046B2 (en) | Automated UV calibration, motorized optical target and automatic surface finder for optical alignment and assembly robot | |
| KR20180015645A (en) | Methods and devices for thin camera focusing alignment | |
| US7637025B2 (en) | Apparatus for measuring thickness of lens | |
| CN110487220B (en) | Device and method for adjusting and detecting consistency of optical axes of space laser communication terminal | |
| KR101808388B1 (en) | Probe apparatus and probe method | |
| US7515255B2 (en) | Method and apparatus for detecting concentricity of lens module | |
| CN102735191B (en) | Device for determining verticality of honeycomb ceramics | |
| JP2010282151A (en) | Method and device for eccentricity adjustment and assembly of optical element | |
| CN208083671U (en) | Laser soldering device | |
| US10551174B2 (en) | Calibration method of image measuring device | |
| CN102004390B (en) | Lens module detection system and detection method thereof | |
| CN112485805A (en) | Laser triangular displacement sensor and measuring method thereof | |
| CN103268022B (en) | Off-line installation and correcting method of wedge-shaped lens large-diameter optical focus and frequency conversion system | |
| CN105841617B (en) | It is a kind of confocal altogether as contraposition microassembly system and calibration method | |
| TWI472712B (en) | Vertical and parallelism detection system and its detection method | |
| WO2012011406A1 (en) | Diaphragm position measuring method, diaphragm position measuring device, diaphragm positioning method and diaphragm positioning device | |
| CN102878933A (en) | Comparator based on white light interference positioning principle and detection method thereof | |
| CN116105638A (en) | U-shaped turntable coaxiality detection system and detection method | |
| CN209961911U (en) | Optical ranging device and mobile robot | |
| CN104764399A (en) | Measuring instrument capable of quickly focusing and measuring method thereof | |
| CN211477573U (en) | Pyramid auto-collimation scanning device for collimator focus detection | |
| JP2008268000A (en) | Displacement measuring method and device | |
| JP2008268054A (en) | Device for measuring focal position |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |