WO2014040472A1 - 一种快速及全面检测镜头致动器的装置、系统和方法 - Google Patents

一种快速及全面检测镜头致动器的装置、系统和方法 Download PDF

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Publication number
WO2014040472A1
WO2014040472A1 PCT/CN2013/081596 CN2013081596W WO2014040472A1 WO 2014040472 A1 WO2014040472 A1 WO 2014040472A1 CN 2013081596 W CN2013081596 W CN 2013081596W WO 2014040472 A1 WO2014040472 A1 WO 2014040472A1
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WIPO (PCT)
Prior art keywords
lens
lens actuator
cone
barrel
bracket
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PCT/CN2013/081596
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English (en)
French (fr)
Inventor
刘锦潮
刘志远
钞晨
麦练智
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爱佩仪光电技术（深圳）有限公司
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Priority to JP2015531438A priority Critical patent/JP6231568B2/ja
Priority to EP13837036.6A priority patent/EP2896949B1/en
Priority to KR1020157008313A priority patent/KR20150058269A/ko
Publication of WO2014040472A1 publication Critical patent/WO2014040472A1/zh
Priority to US14/657,611 priority patent/US9639925B2/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • G02B7/005—Motorised alignment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/001—Axicons, waxicons, reflaxicons
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention discloses a detecting device and method for a lens actuator, and more particularly, a device, system and method for quickly and comprehensively detecting a lens actuator.
  • the detected items in addition to controlling the relationship between the lens actuator and the lens stroke (relative distance between the lens and the image sensor), should also include detecting the lens tilt.
  • the reason is that if the tilt of the lens is too large, even if the center of the image is out of focus, the edges of the image will be out of focus, affecting the quality of the image.
  • a tilt-type anti-vibration lens actuator for example, US Patent No. US2009/0237517 and Chinese patent No. 200810090504.1
  • the tilt of the lens directly affects the effect of optical image stabilization, and the tilt of the lens is more important.
  • the conventional comprehensive detection method for the lens actuator is that the dummy lens needs to be placed in the lens actuator first, and then the stroke and the inclination of the vacation lens are measured by different methods.
  • the distance sensor is used to measure the position above the lens to calculate the stroke; a reflective film is plated under the fake lens, and the laser is directed to the reflective film, and the tilt of the lens is calculated according to the position of the reflected laser.
  • the dummy lens needs to be inserted into the lens actuator before and after the lens actuator is detected and removed from the lens actuator, which causes the following problems:
  • Dust caused by wear of the lens actuator during the detection process may be hidden in the lens actuator. After the lens actuator is assembled with the camera module, hidden dust may jump off the image sensor and affect The image quality of the camera increases the defect rate of the camera module.
  • the present invention provides a new apparatus and method for quickly and comprehensively detecting a lens actuator, which is actuated by a conical mirror reflection lens.
  • the image in the lens barrel of the device is captured by the camera to calculate the motion of the lens actuator.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a device for quickly and comprehensively detecting a lens actuator, the device comprising a bracket for fixing the lens actuator, a cone and a camera, wherein the tapered outer surface is The mirror is mounted on the top of the bracket and the camera is suspended above the cone.
  • a system using the above-described device for quickly and comprehensively detecting a lens actuator comprising a detecting device, a control panel and a computer, the computer issuing a control command to the control panel, controlling the operation of the lens actuator through the control panel, the camera collecting cone The light reflected by the body is transmitted to the computer for detection.
  • the camera collects features inside the lens barrel that is reflected by the cone;
  • the camera again collects the characteristics of the inside of the lens barrel that is reflected by the cone after the barrel stroke and/or the tilt angle is changed;
  • a is the diameter of the lens barrel
  • d1 For the moment, the distance between the highest point of the bottom of the lens barrel and the bracket, d2 is the distance between the lowest point of the bottom of the lens barrel and the bracket, and d3 is the distance between the bottom of the barrel and the distance between the brackets.
  • d4 is the position 2, the distance between the lowest point of the bottom of the lens barrel and the bracket.
  • the angle of the bevel of the cone satisfies the light inside the lens actuator reflected by the slope and can enter the camera.
  • the cone has a bevel angle of 45°.
  • the cone is fixedly mounted on the support, and the support is fixedly mounted on the bracket.
  • the cone is a cone, a quadrangular pyramid or a triangular pyramid.
  • the tip end of the cone is located at the center line position of the lens barrel of the lens actuator.
  • the invention has the beneficial effects that the invention does not require the lens to be placed in the lens barrel, and only needs to place the lens actuator on the platform, and the conical mirror is in the middle of the lens barrel and does not contact the lens barrel. Therefore, three problems caused by using a fake lens can be avoided.
  • the present invention can achieve cost reduction, improved detection speed, and yield of lens actuators and camera modules.
  • the detection of the lens actuator can be achieved without the need for additional false lenses or other temporary (temporary means that needs to be removed after detection) in the lens actuator.
  • the invention can realize a rapid detection method, and is advantageous for quality detection and control during mass production.
  • the invention can realize comprehensive detection, and the detection items include the lens stroke and the inclination range under different control.
  • Figure 1 is a block diagram of the system of the present invention.
  • FIG. 2 is a schematic plan view of the present invention.
  • Figure 3 is a schematic cross-sectional view of the utility model.
  • FIG. 4 is a schematic structural view of a first embodiment of the present invention.
  • FIG. 5 is a schematic structural view of Embodiment 2 of the present invention.
  • Figure 6 is a schematic view showing the structure of the use state of the present invention.
  • Figure 7 is a schematic view showing the structure of the second state of use of the present invention.
  • Figure 8 is a flow chart of the system of the present invention.
  • This embodiment is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of the present embodiment, and are all within the scope of the present invention.
  • the apparatus for quickly and comprehensively detecting a lens actuator of the present invention mainly comprises a bracket 4 for fixing a lens actuator, a cone 2 and a camera 1, wherein the cone 2 is external
  • the surface is a mirror surface and can be used for the characteristic image in the mirror barrel 7.
  • the slope of the tapered body 2 i.e., the outer surface around the cone 2 satisfies the inside of the lens barrel 7 of the lens actuator reflected by the slope.
  • the light can be incident into the camera 1, that is, the camera 1 can collect the light inside the lens barrel 7 reflected by the cone 2, so as to perform the later calculation work.
  • the angle of the slope of the cone 2 is preferably 45°.
  • the conical body 2 can adopt a square conical body 8, the structure of which can be seen in FIG. 4, a triangular conical body 9 can also be used, the structure of which can be seen in FIG. 5, or a cone of cone or other structure can also be used.
  • the cone 2 is fixedly mounted on the support 3, and the support 3 is fixedly mounted on the bracket 4. In the specific implementation, whether the height of the support 3 and the support 3 can be set according to actual needs is determined. .
  • the camera 1 is suspended directly above the cone 2 to collect the light reflected by the cone 2.
  • the present invention simultaneously protects a system employing the above-described apparatus for quickly and comprehensively detecting a lens actuator, the system including a detecting device (i.e., the above-described device for quickly and comprehensively detecting a lens actuator), and a control panel
  • the control panel is used to control the operation of the detected lens actuator
  • the computer sends a control command to the control panel
  • the lens actuator is controlled by the control panel (forward or backward movement or tilting motion)
  • the camera 1 collects the cone 2 reflection
  • the light is transmitted to the computer for detection processing.
  • a method for detecting a lens actuator using the above-described apparatus for quickly and comprehensively detecting a lens actuator comprising the steps of:
  • the lens actuator Place the lens actuator on the bracket 4 so that the cone 2 is located in the lens barrel 7 of the lens actuator (the lens actuator usually includes two major parts of the lens barrel 7 and the outer casing 6, and the lens barrel 7 is disposed in the outer casing 6
  • the tip end of the cone 2 is located at the center line position of the lens barrel 7 of the lens actuator, that is, the center line of the cone 2 coincides with the center line of the lens 7;
  • the camera 1 captures the image of the inside of the lens barrel 7 reflected by the cone 2 (such as a thread or a special logo, etc.), the optical path 5 please refer to Figure 3, Figure 6 and Figure 7;
  • the camera 1 again acquires the same feature image inside the lens barrel 7 that is reflected by the cone 2 after the stroke of the lens barrel 7 and/or the tilt angle is changed;
  • the stroke S and the inclinations ⁇ x and ⁇ y of the lens barrel 7 can be calculated. Referring to FIG. 6 and FIG. 7 :
  • a is the diameter of the lens barrel 7, please refer to Figure 6, d1
  • the distance between the highest point of the bottom of the lens barrel 7 and the bracket 4, d2 is the position
  • the distance between the bottom of the lens barrel 7 and the bracket 4 please refer to Figure 7, when d3 is the position 2, the mirror
  • the distance between the highest point of the bottom of the barrel 7 and the bracket 4, and d4 is the distance between the bottom of the barrel 7 and the bracket 4 when the position is two.
  • the quality of the lens actuator is judged based on the stroke and inclination angle of the lens barrel 7 under different control, compared with the standard value.
  • the present invention can achieve cost reduction, improved detection speed, and yield of lens actuators and camera modules.
  • the detection of the lens actuator can be achieved without the need for additional false lenses or other temporary (temporary means that needs to be removed after detection) in the lens actuator.
  • the invention can realize a rapid detection method, and is advantageous for quality detection and control during mass production.
  • the invention can realize comprehensive detection, and the detection items include the lens stroke and the inclination range under different control.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Accessories Of Cameras (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Lens Barrels (AREA)

Abstract

一种快速及全面检测镜头致动器的装置，包括用于固定镜头致动器的支架（4）、锥形体（2）和摄像头（1），所述的锥形体（2）外表面为镜面，锥形体（2）安装在支架（4）顶部，摄像头（1）悬于锥形体（2）上方。还公开了一种采用上述快速及全面检测镜头致动器的装置的系统以及采用上述装置检测镜头致动器的方法。可实现快速的检测，有利于量产时作质量检测及控制，且可实现全面检测，检测项目包括在不同控制下镜头行程及倾斜幅度等。

Description

一种快速及全面检测镜头致动器的装置、系统和方法 技术领域
本发明公开一种镜头致动器的检测装置和方法，特别是一种快速及全面检测镜头致动器的装置、系统和方法。
背景技术
随着数码影像技术的逐步发展，数码照相机、数码摄像机等数码影像产品在人们生活的应用也越来越广泛，数码影像产品的像素也越做越高。目前，大部份采用高于二百万像素的高像素摄像头的数码产品中，都需要通过一个镜头致动器去改变镜头位置，以达到自动对焦、改善相片或影片质量的目的。另一方面，由于这一类高像素摄像头在数码产品上日益普遍，所以相关的镜头致动器需求也不断上升。在镜头致动器大量生产的过程中，需要一种快速而全面的方法去检测镜头致动器的方法，控制质量。在对于镜头致动器的全面的检测过程中，检测的项目，除了控制镜头致动器与镜头行程（镜头和影像传感器之间的相对距离）的关系外，还应包括检测镜头倾斜幅度。原因是，如果镜头倾斜幅度过大的时候，纵使影像正中部分对了焦，影像边缘亦会产生失焦现象，影响影像的质量。另外，在众多镜头致动器中，有一种倾斜式防震镜头致动器（例如专利号为US2009/0237517的美国专利及专利号为200810090504.1的中国专利），会故意改变镜头倾斜幅度，以达到光学防抖的效果。对这一种致动装置来说，镜头的倾斜幅度会直接影响光学防抖的效果，所述镜头的倾斜幅度便显得更加重要。
现有技术中，传统的对于镜头致动器的全面检测方法是，需要先将假镜头放进镜头致动器中，再用不同的方法去量度假镜头的行程及倾斜幅度。例如：在上方利用距离感应器量度镜头上面的位置，从而计算行程；在假镜头下方镀一层反光膜，用激光射向反光膜，根据反射后激光的位置，计算镜头倾斜度。
传统的检测方法中，需要将假镜头在镜头致动器检测前后被插入镜头致动器及被从镜头致动器中移除，会引起以下几个问题：
一、需要额外的工具、人手及时间去插入及移除假镜头，不仅增加了检测成本，而且还增加了营运费用，降低了镜头致动器的生产速度；
二、插入及移除假镜头时，则会有机会引起镜头致动器及假镜头的磨损，从而增加了镜头致动器的生产不良率，间接增加了检测成本及营运费；
三、由于镜头致动器在检测过程中的磨损引起的灰尘可能会隐藏在镜头致动器中，在镜头致动器装配上相机模块后，隐藏的灰尘可能会跳落影像传感器上，而影响相机的影像质量，增加相机模块的不良率。
 发明内容
针对上述提到的现有技术中的镜头致动器检测存在的上述问题，本实用新型提供一种新的快速及全面检测镜头致动器的装置和方法，其采用锥形镜反射镜头致动器的镜筒内的影像，通过摄像头采集影像，从而计算出镜头致动器的运动情况。
本发明解决其技术问题采用的技术方案是：一种快速及全面检测镜头致动器的装置，装置包括用于固定镜头致动器的支架、锥形体和摄像头，所述的锥形体外表面为镜面，锥形体安装在支架顶部，摄像头悬于锥形体上方。
一种采用上述的快速及全面检测镜头致动器的装置的系统，该系统包括检测装置、控制板和电脑，电脑发出控制指令给控制板，通过控制板控制镜头致动器工作，摄像头采集锥形体反射的光线，并传输给电脑进行检测处理。
一种采用上述的快速及全面检测镜头致动器的装置检测镜头致动器的方法，该方法包括下述步骤：
A、将镜头致动器放置在支架上，使锥形体位于镜头致动器的镜筒内；
B、摄像头采集经过锥形体反射的镜筒内部的特征；
C、改变镜头致动器内的镜筒的行程和/或倾斜角度；
D、摄像头再次采集镜筒行程和/或倾斜角度改变后经过锥形体反射的镜筒内部的特征；
E、根据镜筒内的特征在摄像头成像上的改变，能够计算得到：
di-ei=Δdi=kΔpi,i[1,4]
其中，di 是镜筒底部和支架之间的距离；ei是镜筒底部和支架之间在没有改变镜筒的行程和/或倾斜角度时的距离；Δpi是在图像中特征在改变镜筒的行程和/或倾斜角度后，相对于没有改变镜筒的行程和/或倾斜角度时的位置改变(单位为像素)，k是像素和目标物理距离之间的关系系数；
F、根据Δdi能够计算得知镜筒的行程S和倾斜度θx和θy：
S=（Δdi）/4
θx=tan-1(d3–d4)/a
θy=tan-1(d1–d2)/a
其中，a是镜筒的直径，d1 为位置一时，镜筒底部最高处和支架之间的距离，d2为位置一时，镜筒底部最低处和支架之间的距离，d3为位置二时，镜筒底部最高处和支架之间的距离，d4为位置二时，镜筒底部最低处和支架之间的距离。
本发明解决其技术问题采用的技术方案进一步还包括：
所述的锥形体的斜面角度满足通过斜面反射的镜头致动器内部的光线能够射入摄像头内。
所述的锥形体的斜面角度为45°。
所述的锥形体固定安装在承托物上，承托物固定安装在支架上。
所述的锥形体为圆锥体、四棱锥或三棱锥。
所述的步骤A中，锥形体尖端位于镜头致动器的镜筒的中心线位置。
本发明的有益效果是：本发明不需要放假镜头在镜筒中，只需要将镜头致动器放在平台上，锥形镜在镜筒中间，并不会接触镜筒。因此，可避免使用假镜头所引发的三个问题。本发明相对于现有技术来讲可以达到降低成本、改进检测速度以及生产镜头致动器及相机模块的良率。在不需要附加假镜头或其他临时（临时的意思是在检测后需要被移除）东西在镜头致动器中的情况下，可以实现检测镜头致动器。本发明可实现快速的检测方法，有利于量产时作质量检测及控制。且本发明可实现全面检测，检测项目包括在不同控制下，镜头行程及倾斜幅度等。
下面将结合附图和具体实施方式对本发明做进一步说明。
 附图说明
图1为本发明系统方框图。
图2为本发明俯视结构示意图。
图3为本实用新型剖面结构示意图。
图4为本发明实施例一结构示意图。
图5为本发明实施例二结构示意图。
图6为本发明使用状态一结构示意图。
图7为本发明使用状态二结构示意图。
图8为本发明系统流程图。
图中，1-摄像头，2-锥形体，3-承托物，4-支架，5-光线线路，6-外壳，7-镜筒，8-正方锥形体，9-三角锥形体。
 具体实施方式
本实施例为本发明优选实施方式，其他凡其原理和基本结构与本实施例相同或近似的，均在本发明保护范围之内。
请参看附图2至附图5，本发明中的快速及全面检测镜头致动器的装置主要包括用于固定镜头致动器的支架4、锥形体2和摄像头1，其中，锥形体2外表面为镜面，可用于反射镜筒7内的特征影像，本实施例中，锥形体2的斜面（即锥形体2四周的外表面）角度满足通过斜面反射的镜头致动器的镜筒7内部的光线能够射入摄像头1内即可，即摄像头1能够采集到经锥形体2反射的镜筒7内部的光线，以便于进行后期的计算工作。本实施例中，锥形体2的斜面角度优选为45°。本发明中，锥形体2可采用正方锥形体8，其结构请参看附图4，也可以采用三角锥形体9，其结构请参看附图5，或者，也可以采用圆锥体或其他结构的锥形体。本实施例中，锥形体2固定安装在承托物3上，承托物3固定安装在支架4上，具体实施时，可根据实际需要决定是否设置承托物3以及承托物3的高度。摄像头1悬吊于锥形体2的正上方，以采集锥形体2反射的光线。
请参看附图1，本发明同时保护一种采用上述的快速及全面检测镜头致动器的装置的系统，该系统包括检测装置（即上述快速及全面检测镜头致动器的装置）、控制板和电脑，控制板用于控制被检测的镜头致动器的工作，电脑发出控制指令给控制板，通过控制板控制镜头致动器工作（前后运动或倾斜运动），摄像头1采集锥形体2反射的光线，并传输给电脑进行检测处理。
请参看附图8，本发明中，采用上述的快速及全面检测镜头致动器的装置检测镜头致动器的方法，该方法包括下述步骤：
A、将镜头致动器放置在支架4上，使锥形体2位于镜头致动器的镜筒7（镜头致动器通常包括镜筒7和外壳6两大部件，镜筒7设置外壳6内）内，本实施例中，优选为锥形体2尖端位于镜头致动器的镜筒7的中心线位置，即锥形体2中心线与镜头7的中心线相重合；
B、摄像头1采集经过锥形体2反射的镜筒7内部的特征（如螺纹或特殊的标志等）影像，光路5请参看附图3、附图6和附图7；
C、改变镜头致动器内的镜筒7的行程和/或倾斜角度；
D、摄像头1再次采集镜筒7行程和/或倾斜角度改变后经过锥形体2反射的镜筒7内部的同一特征影像；
E、根据镜筒7内的特征影像在摄像头1上成像的改变，能够计算得到：
di-ei=Δdi=kΔpi,i[1,4]
其中，di 是镜筒7底部和支架4之间的距离；ei是镜筒7底部和支架4之间在没有改变镜筒7的行程和/或倾斜角度时的距离；Δpi是在图像中特征影像在改变镜筒7的行程和/或倾斜角度后，相对于没有改变镜筒7的行程和/或倾斜角度时的位置改变(Δpi的单位为像素)，k是像素和目标物理距离之间的关系系数，可通过试验获得，Δpi在越来越大时侯，表示特征在图像中越来越接近中心；
F、根据Δdi能够计算得知镜筒7的行程S和倾斜度θx和θy，请参看附图6和附图7：
S=（Δdi）/4
θx=tan-1(d3–d4)/a
θy=tan-1(d1–d2)/a
其中，a是镜筒7的直径，请参看附图6，d1 为位置一时，镜筒7底部最高处和支架4之间的距离，d2为位置一时，镜筒7底部最低处和支架4之间的距离，请参看附图7，d3为位置二时，镜筒7底部最高处和支架4之间的距离，d4为位置二时，镜筒7底部最低处和支架4之间的距离。根据在不同控制下的镜筒7的行程和倾斜角度，和标准值比较，判断镜头致动器的质量。
本发明相对于现有技术来讲可以达到降低成本、改进检测速度以及生产镜头致动器及相机模块的良率。在不需要附加假镜头或其他临时（临时的意思是在检测后需要被移除）东西在镜头致动器中的情况下，可以实现检测镜头致动器。本发明可实现快速的检测方法，有利于量产时作质量检测及控制。且本发明可实现全面检测，检测项目包括在不同控制下，镜头行程及倾斜幅度等。

Claims (8)

  1. 一种快速及全面检测镜头致动器的装置，其特征是：所述的装置包括用于固定镜头致动器的支架、锥形体和摄像头，所述的锥形体外表面为镜面，锥形体安装在支架顶部，摄像头悬于锥形体上方。
  2. 根据权利要求1所述的快速及全面检测镜头致动器的装置，其特征是：所述的锥形体的斜面角度满足通过斜面反射的镜头致动器内部的光线能够射入摄像头内。
  3. 根据权利要求2所述的快速及全面检测镜头致动器的装置，其特征是：所述的锥形体的斜面角度为45°。
  4. 根据权利要求1或2或3所述的快速及全面检测镜头致动器的装置，其特征是：所述的锥形体固定安装在承托物上，承托物固定安装在支架上。
  5. 根据权利要求1或2或3所述的快速及全面检测镜头致动器的装置，其特征是：所述的锥形体为圆锥体、四棱锥或三棱锥。
  6. 一种采用如权利要求1至5中任意一项所述的快速及全面检测镜头致动器的装置的系统，其特征是：所述的系统包括检测装置、控制板和电脑，电脑发出控制指令给控制板，通过控制板控制镜头致动器工作，摄像头采集锥形体反射的光线，并传输给电脑进行检测处理。
  7. 一种采用如权利要求1至5中任意一项所述的快速及全面检测镜头致动器的装置检测镜头致动器的方法，其特征是：所述的方法包括下述步骤：
    A、将镜头致动器放置在支架上，使锥形体位于镜头致动器的镜筒内；
    B、摄像头采集经过锥形体反射的镜筒内部的特征；
    C、改变镜头致动器内的镜筒的行程和/或倾斜角度；
    D、摄像头再次采集镜筒行程和/或倾斜角度改变后经过锥形体反射的镜筒内部的特征；
    E、根据镜筒内的特征在摄像头成像上的改变，能够计算得到：
    di-ei=Δdi=kΔpi,i[1,4]
    其中，di 是镜筒底部和支架之间的距离；ei是镜筒底部和支架之间在没有改变镜筒的行程和/或倾斜角度时的距离；Δpi是在图像中特征在改变镜筒的行程和/或倾斜角度后，相对于没有改变镜筒的行程和/或倾斜角度时的位置改变(单位为像素)，k是像素和目标物理距离之间的关系系数；
    F、根据Δdi能够计算得知镜筒的行程S和倾斜度θx和θy：
    S=（Δdi）/4
    θx=tan-1(d3–d4)/a
    θy=tan-1(d1–d2)/a
    其中，a是镜筒的直径，d1 为位置一时，镜筒底部最高处和支架之间的距离，d2为位置一时，镜筒底部最低处和支架之间的距离，d3为位置二时，镜筒底部最高处和支架之间的距离，d4为位置二时，镜筒底部最低处和支架之间的距离。
  8. 根据权利要求7所述的方法，其特征是：所述的步骤A中，锥形体尖端位于镜头致动器的镜筒的中心线位置。
PCT/CN2013/081596 2012-09-14 2013-08-16 一种快速及全面检测镜头致动器的装置、系统和方法 WO2014040472A1 (zh)

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