WO2014047995A1 - 一种影像撷取装置及检测装置 - Google Patents

一种影像撷取装置及检测装置 Download PDF

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Publication number
WO2014047995A1
WO2014047995A1 PCT/CN2012/083396 CN2012083396W WO2014047995A1 WO 2014047995 A1 WO2014047995 A1 WO 2014047995A1 CN 2012083396 W CN2012083396 W CN 2012083396W WO 2014047995 A1 WO2014047995 A1 WO 2014047995A1
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WIPO (PCT)
Prior art keywords
transparent plate
motor
waterproof
image capturing
waterproof case
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PCT/CN2012/083396
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English (en)
French (fr)
Inventor
陈信华
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/810,897 priority Critical patent/US20140092232A1/en
Publication of WO2014047995A1 publication Critical patent/WO2014047995A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/08—Waterproof bodies or housings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path

Definitions

  • the present invention relates to the field of optical detection technologies, and in particular, to an image capturing device and a detecting device.
  • Optical image detection is widely used in defense, medical, semiconductor, liquid crystal panel manufacturing and other related industries. It uses optical instruments to obtain the surface state of the object to be inspected, and then detects abnormalities such as foreign matter or pattern by computer image processing technology.
  • the manufacture of the liquid crystal panel includes a plurality of wet processes such as wet etching. Water droplets or water stains are likely to remain on the liquid crystal panel after the wet process.
  • an optical instrument in the optical image detecting system such as a CCD image sensor, or the like
  • a water droplet or a water stain on the liquid crystal panel is easily attached to the optical instrument of the optical image detecting system.
  • the detection system is mis-catched and misjudged, and accurate detection of the liquid crystal panel cannot be achieved.
  • the CCD image sensor of the linear scan mode after the water droplets are attached thereto, a black band shape is easily formed on the screen acquired by the CCD image sensor of the linear scan mode; and for the CCD image sensor of the area scan mode.
  • the water droplets or water stains attached thereto are prone to fogging, and the image acquired by the CCD image sensor of the area scanning mode appears white band after the gray scale processing.
  • optical image detection when optical image detection is applied to wet process, it is susceptible to moisture, water drops, water stains, etc.
  • the detection system is easy to be mistaken. Grasping images leads to misjudgment.
  • the common way to solve this problem is to use high-pressure air nozzles to blow high-pressure air onto the lens, forcing water droplets or water stains to disperse, but this way It has been proven that the probability of false detection of the detection process due to water droplets is still high, and misdetection may lead to misjudgment, resulting in a decrease in production capacity and even a large loss of capacity.
  • the main object of the present invention is to provide an image capturing device and a detecting device, which aim to drive a transparent plate to rotate at a high speed by a motor, thereby generating centrifugal force to remove water drops and water stains on the transparent plate, thereby improving detection accuracy.
  • the invention provides an image capturing device, comprising: a waterproof casing, a CCD image sensor mounted in the waterproof casing, and a motor having an output shaft, which is disposed on one side of the waterproof casing and connected to the motor A transparent plate of the output shaft, the motor driving the transparent plate to rotate.
  • the transparent plate includes a bearing portion and a cover portion connected to a periphery of the bearing portion, a bearing portion of the transparent plate is disposed on the waterproof case, and the cover portion is covered on the waterproof case Four weeks, the waterproof case is combined with the transparent plate to form a closed space, and the CCD image sensor and the motor are placed in the closed space.
  • the waterproof casing is provided with a high-pressure gas cleaning device for generating high-pressure gas to prevent outside moisture from entering the interior of the waterproof casing.
  • the invention also provides a detecting device, comprising an image capturing device and an LED projection device disposed opposite to the image capturing device; the image capturing device comprises a waterproof casing and a CCD image sensor mounted in the waterproof casing And a motor having an output shaft, a transparent plate that is disposed on one side of the waterproof casing and connected to an output shaft of the motor and located outside the waterproof casing, and the motor drives the transparent plate to rotate.
  • the LED projection device is located above the image capturing device and corresponds to the transparent plate.
  • the transparent plate is disposed on a side of the waterproof case corresponding to the LED projection device.
  • the transparent plate includes a carrying portion and a cover portion connected to a periphery of the carrying portion, a carrying portion of the transparent plate is disposed on the waterproof case, and the cover portion is covered in the waterproof
  • the waterproof casing is combined with the transparent plate to form a closed space, and the CCD image sensor and the motor are placed in the closed space.
  • the waterproof casing is provided with a high-pressure gas cleaning device for generating high-pressure gas to prevent outside moisture from entering the interior of the waterproof casing.
  • the detecting device further comprises an image processing device connected to the CCD image sensor.
  • the LED projection device comprises an LED lamp and an LED controller for controlling the opening or closing of the LED lamp.
  • the present invention further provides another detecting device, including an image capturing device and an LED projection device, the image capturing device comprising a waterproof casing, a CCD image sensor, a motor having an output shaft, and a transparent plate, the CCD image sensor and the
  • the motor is mounted in the waterproof casing, the transparent plate is disposed on a side of the waterproof casing corresponding to the LED projection device and is connected to an output shaft of the motor, and the LED projection device is located above the image capturing device And corresponding to the transparent plate, the motor drives the transparent plate to rotate.
  • the transparent plate includes a carrying portion and a cover portion connected to a periphery of the carrying portion, a carrying portion of the transparent plate is disposed on the waterproof case, and the cover portion is covered in the waterproof
  • the waterproof casing is combined with the transparent plate to form a closed space, and the CCD image sensor and the motor are placed in the closed space.
  • the waterproof casing is provided with a high-pressure gas cleaning device for generating high-pressure gas to prevent outside moisture from entering the interior of the waterproof casing.
  • the detecting device further comprises an image processing device connected to the CCD image sensor.
  • the LED projection device comprises an LED lamp and an LED controller for controlling the opening or closing of the LED lamp.
  • the image capturing device and the detecting device of the invention are used for carrying the transparent plate of the liquid crystal panel to be tested and connected to the motor and can be rotated at a high speed by the motor to generate centrifugal force, so that the water drops or water stains attached thereto can be in the centrifugal force.
  • the function of the transparent plate is improved, and the transparent plate is cleaned to improve the image acquisition accuracy of the CCD image sensor, thereby improving the detection precision of the liquid crystal panel and increasing the productivity.
  • FIG. 1 is a schematic structural view of an image capturing device of the present invention
  • Figure 2 is a schematic view showing the structure of the detecting device of the present invention.
  • the camera capture device 10 is configured to implement image detection of the liquid crystal panel to determine whether the liquid crystal panel has defects in image abnormality or the like, for example, whether the light transmittance meets design requirements or the like.
  • the image capturing device 10 includes a waterproof case 101, a CCD image sensor 102 and a motor 103 mounted in the waterproof case 101, and a transparent plate 104 that is disposed on the side of the waterproof case 101.
  • the waterproof case 101 is used to form a housing space to house components such as the CCD image sensor 102 and the motor 103 therein.
  • the waterproof case 101 is made of a waterproof material so as to prevent the outside water from entering into it to some extent to corrode the respective members housed therein.
  • the top side of the waterproof case 101 is opened to facilitate mounting of components such as the CCD image sensor 102 and the motor 103 therein.
  • the CCD image sensor 102 is installed in the waterproof case 101 for converting the light passing through the LED lamp of the liquid crystal panel to be detected into an electrical signal, thereby realizing image acquisition, thereby enabling the image capturing device 10 to detect whether the liquid crystal panel has an image. Defects such as anomalies.
  • the transparent plate 104 is combined with the waterproof case 101 to form a closed space, and the CCD image sensor 102 and the motor 103 are placed in the closed space.
  • the transparent plate 104 includes a carrying portion for carrying the liquid crystal panel and a cover portion connected to the periphery of the carrying portion.
  • the carrying portion of the transparent plate 104 is disposed on the opening of the waterproof case 101, and the cover portion is covered with waterproof.
  • the opening of the shell 101 is surrounded.
  • the motor 103 includes an output shaft 1031 which is further connected to the output shaft 1031 of the motor 103 and which can be rotated at a high speed by the motor 103 to generate centrifugal force.
  • the configuration of the transparent plate 104 is not limited to the embodiment.
  • the transparent plate 104 may also be in the shape of a plate or other shape capable of carrying a liquid crystal panel to be inspected and forming a closed space with the waterproof case 101.
  • the image capturing device 10 of the present invention further includes a cleaning device 105.
  • the air outlet of the cleaning device 105 is disposed inside the waterproof casing 101 for injecting high-pressure gas blown into the waterproof casing 101, so that the air pressure inside the waterproof casing 101 is higher than the external air pressure, thereby preventing the external moisture or moisture from entering the waterproof.
  • the inside of the casing 101 and at the same time, the water vapor adsorbed on the respective members is blown away from the corresponding members and the waterproof casing 101 is blown out from the gap between the transparent plate 104 and the waterproof casing 101.
  • the outside moisture does not easily enter the inside of the waterproof case 101 to cause damage to the CCD image sensor 102 or the like.
  • FIG. 2 is a schematic structural view of a detecting device of the present invention.
  • the present invention also provides a detecting device comprising an image capturing device 10 and an LED projecting device 20 disposed opposite to the image capturing device 10.
  • the camera capturing device 10 is configured to carry a liquid crystal panel to be detected and convert the LED lamp passing through the liquid crystal panel to realize optical detection of the liquid crystal panel.
  • the image capturing device 10 includes a waterproof case 101, a CCD image sensor 102 and a motor 103 mounted in the waterproof case 101, and a transparent plate 104.
  • the waterproof case 101 is used to form a housing space to house components such as the CCD image sensor 102 and the motor 103 therein.
  • the waterproof case 101 is made of a waterproof material, so that the components housed therein are prevented from being corroded by water drops or water stains to some extent.
  • the top side of the waterproof case 101 is opened to facilitate mounting of components such as the CCD image sensor 102 and the motor 103 therein.
  • the CCD image sensor 102 is mounted in the waterproof case 101 for converting light of the LED lamp passing through the liquid crystal panel to be detected into an electrical signal, thereby realizing image acquisition, thereby enabling the image capturing device 10 to detect whether the liquid crystal panel has Defects such as image anomalies.
  • the transparent plate 104 is combined with the waterproof case 101 to form a closed space.
  • the transparent plate 104 includes a carrying portion for carrying the liquid crystal panel and a cover portion connected to the periphery of the carrying portion.
  • the carrying portion of the transparent plate 104 is disposed on the opening of the waterproof case 101, and the cover portion is covered with waterproof.
  • the opening of the shell 101 is surrounded.
  • the motor 103 includes an output shaft 1031 which is further connected to the output shaft 1031 of the motor 103 and which can be rotated at a high speed by the motor 103 to generate centrifugal force.
  • the image capturing device 10 of the present invention further includes a cleaning device 105 such that the air pressure inside the waterproof case 101 is higher than the outside air pressure, thereby preventing the outside water from entering the inside of the waterproof case 101 and simultaneously adsorbing on the respective members.
  • the water vapor blows off the corresponding member and blows the waterproof case 101 from the gap between the transparent plate 104 and the waterproof case 101.
  • the LED projection device 20 includes an LED lamp 201 and an LED controller 202 connected to the LED lamp 201.
  • the LED lamp 201 is located above the camera capturing device 10 and corresponds to the transparent plate 104.
  • the LED controller 202 is connected to the LED lamp 201 for controlling the opening or closing of the LED lamp 201 so that the LED lamp 201 can project light to the liquid crystal panel to be detected placed on the transparent plate 104.
  • the motor 103 of the camera capturing device 10 can be activated to rotate the motor 103 at a high speed to drive the transparent plate 104 to rotate at a high speed.
  • the motor 103 of the camera capturing device 10 can be activated to rotate the motor 103 at a high speed to drive the transparent plate 104 to rotate at a high speed.
  • water droplets or water stains adhering to the transparent plate 104 are separated from the transparent plate 104 to achieve the function of cleaning the transparent plate 104, thereby making the transparent plate 104
  • the water droplets or water vapor do not cause the image of the image captured by the CCD image sensor 102 during subsequent detection to be affected by these water drops or water stains.
  • the cleaning device 105 is turned on, which generates high-pressure gas that is blown toward the inside of the waterproof case 101.
  • the high-pressure gas of the cleaning device 105 the moisture in the external environment cannot enter the waterproof casing 101 through the gap between the transparent plate 104 and the waterproof casing 101, so that the CCD image sensor 102 can be further prevented from being affected by moisture. And reduce its image acquisition accuracy.
  • the liquid crystal panel to be detected may be placed on the transparent plate 104 and the LED lamp 201 is turned on by the LED controller 202. After the LED lamp 201 is turned on, the light is projected toward the liquid crystal panel placed on the transparent plate 104. After the light passes through the liquid crystal panel, the CCD image sensor 102 receives the light, and the CCD image sensor 102 can convert the LED light passing through the liquid crystal panel into an electrical signal. Acquisition of images, etc. Then, by analyzing the image collected by the CCD image sensor 102, it is possible to know whether the liquid crystal panel has defects in the optical image, for example, whether the light transmittance satisfies the design requirements and whether or not foreign matter is present thereon.
  • the CCD image sensor can be in a closed state during the high-speed rotation of the transparent plate 104 by the motor 103, and after the water drops or water stains on the transparent plate 104 are removed. After the liquid crystal panel to be inspected is placed on the transparent plate 104, it is turned on, thereby achieving the purpose of energy saving.
  • the detecting device further includes an image processing device 30 connected to the CCD image sensor 102. After the image capturing device 10 obtains image information of the liquid crystal panel to be detected acquired by the CCD image sensor 102, the image is displayed. The pickup device 10 transmits the image information to the image processing device 30, and the image processing device 30 receives the image information and analyzes it to determine whether or not an abnormal image or foreign matter exists on the liquid crystal surface.
  • the present invention is mounted in the waterproof case 101 by the motor 103 and the CCD image sensor 102, and covers the transparent plate 104 on the top side of the waterproof case 101 and is connected to the motor 103 so that the motor 103 can drive the transparent plate 104 to rotate at a high speed.
  • the water droplets or water stains attached thereto are removed by the centrifugal force generated by the high-speed rotation of the self, thereby cleaning the transparent plate 104, improving the image acquisition accuracy of the CCD image sensor 102, and further improving the detection accuracy of the detecting device.
  • the cleaning device 105 capable of generating high-pressure gas is provided, moisture in the external environment cannot enter the inside of the waterproof case 101 through the gap between the transparent plate 104 and the waterproof case 101 and adhere to the CCD image sensor 102 or the transparent plate 104. It affects the detection accuracy of the detection device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

一种影像撷取装置（10），包括：防水壳（101）、安装于防水壳内的CCD图像传感器（102）及具有输出轴（1031）的电机（103）、盖设于防水壳一侧并连接于电机的输出轴的透明板（104），电机带动透明板（104）旋转；还公开了一种检测装置，包括：影像撷取装置、与影像撷取装置相对设置的LED投射装置（20）、与CCD图像传感器相连的影像处理装置（30）。该影像撷取装置通过电机带动透明板高速旋转，从而产生离心力将透明板上影响影像撷取的水珠和水渍均甩除，提高了检测精度及设备产能。

Description

一种影像撷取装置及检测装置
技术领域
本发明涉及光学检测技术领域，尤其涉及一种影像撷取装置及检测装置。
背景技术
光学影像检测广泛运用于国防、医疗、半导体、液晶面板制造等相关行业，其利用光学仪器取得被检测物的表面状态，再通过电脑图像处理技术检测出异物或图案异常等瑕疵。
液晶面板的制造包括多个湿式制程，如湿蚀刻等。经过湿制程之后的液晶面板上容易残留有水珠或水渍。如此，则当运用光学影像检测系统对液晶面板进行检测时，光学影像检测系统中的光学仪器，如CCD图像传感器等，液晶面板上的水珠或水渍容易附着到光学影像检测系统的光学仪器的镜头上，如CCD图像传感器的镜头上，导致检测系统误抓和误判，无法实现对液晶面板的精确检测。例如，对于直线扫描模式的CCD图像传感器，当水珠附着于其上之后，容易导致直线扫描模式的CCD图像传感器所获取的画面上形成有黑色带状；而对于区域扫描模式的CCD图像传感器而言，附着于其上的水珠或水渍容易出现雾化的现象而导致区域扫描模式的CCD图像传感器所获取的画面在经过灰阶处理后出现白色带状。
目前光学影像检测存在的不足在于：当光学影像检测运用于湿制程时，易受湿气、水珠、水渍等影响，当水汽或水珠残留在光学仪器的镜头上时，检测系统容易误抓影像从而导致误判，目前用于解决该问题的普遍的方式是利用高压气嘴吹气的方式，使高压的空气吹附在镜头上，迫使水珠或水渍散去，但该种方式经证实由于水珠而使检测过程出现误检的机率依然很高，其误检可能会导致误判从而使产能下降，甚至造成大批的产能损失。
发明内容
本发明的主要目的是提供一种影像撷取装置及检测装置，旨在通过电机带动透明板高速旋转，从而产生离心力将透明板上的水珠和水渍均甩除，提高检测精度。
本发明提供了一种影像撷取装置，包括：防水壳、安装于所述防水壳内的CCD图像传感器及具有输出轴的电机、盖设于所述防水壳一侧并连接至所述电机的输出轴的透明板，所述电机带动所述透明板旋转。
优选地，所述透明板包括承载部及连接在该承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
优选地，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
本发明还提供一种检测装置，包括影像撷取装置及与所述影像撷取装置相对设置的LED投射装置；所述影像撷取装置包括防水壳、安装于所述防水壳内的CCD图像传感器及具有输出轴的电机、盖设于所述防水壳一侧并连接至所述电机的输出轴且位于所述防水壳外部的透明板，所述电机带动所述透明板旋转。
优选地，所述LED投射装置位于所述影像撷取装置上方且对应所述透明板。
优选地，所述透明板盖设于所述防水壳对应该LED投射装置的一侧上。
优选地，所述透明板包括承载部及连接在所述承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
优选地，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
优选地，所述检测装置还包括连接于所述CCD图像传感器的影像处理装置。
优选地，所述LED投射装置包括LED灯及LED控制器，所述LED控制器用于控制该LED灯的开启或关闭。
本发明进一步提供了另一种检测装置，包括影像撷取装置及LED投射装置，所述影像撷取装置包括防水壳、CCD图像传感器、具有输出轴的电机及透明板，该CCD图像传感器及该电机安装于所述防水壳内，该透明板盖设于该防水壳对应该LED投射装置的一侧上并连接至该电机的输出轴，所述LED投射装置位于所述影像撷取装置的上方并对应该透明板，所述电机带动所述透明板旋转。
优选地，所述透明板包括承载部及连接在所述承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
优选地，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
优选地，所述检测装置还包括连接于所述CCD图像传感器的影像处理装置。
优选地，所述LED投射装置包括LED灯及LED控制器，所述LED控制器用于控制该LED灯的开启或关闭。
本发明的影像撷取装置及检测装置，其用于承载待测液晶面板的透明板连接至电机并可在电机的带动下高速旋转产生离心力，使得其上附着的水珠或水渍可在离心力的作用甩离透明板，实现了清洁透明板以提高CCD图像传感器的图像获取精度，进而提高对液晶面板的检测精度并增加产能。
附图说明
图1是本发明影像撷取装置的结构示意图；
图2是本发明检测装置的结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
以下结合说明书附图及具体实施例进一步说明本发明的技术方案。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参照图1，图1是本发明影像撷取装置10的结构示意图。摄像撷取装置10用于实现对液晶面板的图像检测以确定液晶面板是否存在图像异常等方面的缺陷，例如，其透光率是否达到设计要求等。具体而言，摄像撷取装置10包括防水壳101、安装于防水壳101内的CCD图像传感器102及电机103，以及盖设于防水壳101一侧的透明板104。
防水壳101用于形成收容空间以将CCD图像传感器102及电机103等构件收容于其中。防水壳101采用防水材料制成，从而在一定程度上避免外界的水气进入其中而腐蚀收容于其中的各个构件。在本实施例中，防水壳101的顶侧开口以便于将CCD图像传感器102及电机103等构件安装于其中。CCD图像传感器102安装于防水壳101中，用于对经过待检测液晶面板的LED灯的光转换成电信号，从而实现图像的获取，进而使得摄像撷取装置10可用于检测液晶面板是否具有图像异常等缺陷。透明板104与防水壳101组合形成封闭空间，所述CCD图像传感器102及电机103置于该封闭空间内。在本实施例中，透明板104包括承载液晶面板的承载部及连接在承载部周缘的盖合部，透明板104的承载部盖设于防水壳101的开口上，盖合部盖合在防水壳101的开口四周。电机103包括输出轴1031，透明板104进一步连接至电机103的输出轴1031，并可在电机103的驱动下高速旋转而产生离心力。
可以理解，透明板104的构造并不局限于本实施例。在其他实施例中，透明板104也可呈板状或者其他能够实现承载待检测的液晶面板并与防水壳101形成封闭空间的形状。
进一步地，本发明的摄像撷取装置10还包括有清洁装置105。清洁装置105的出气口设置于防水壳101内部，用于喷射出吹向防水壳101内的高压气体，使得防水壳101内部的气压高于外界气压，从而可避免外界的水汽或湿气进入防水壳101内部并同时将吸附在各个构件上的水汽吹离相应的构件并从透明板104与防水壳101之间的缝隙吹出防水壳101。如此，即使透明板104及防水壳101之间不可避免地存在有缝隙，外界的水气也不易进入防水壳101内部而对CCD图像传感器102等造成损坏。
如图2所示，图2为本发明检测装置的结构示意图。本发明还提供一种检测装置，包括影像撷取装置10及与所述影像撷取装置10相对设置的LED投射装置20。
摄像撷取装置10用于承载需要检测的液晶面板并对经过该液晶面板的LED灯进行转换从而实现对液晶面板的光学检测。具体而言，影像撷取装置10包括：防水壳101、安装于所述防水壳101内的CCD图像传感器102及电机103，以及透明板104。防水壳101用于形成收容空间以将CCD图像传感器102及电机103等构件收容于其中。防水壳101采用防水材料制成，从而在一定程度上避免收容于其中的各个构件受水珠或水渍的腐蚀。在本实施例中，防水壳101的顶侧开口以便于将CCD图像传感器102及电机103等构件安装于其中。CCD图像传感器102安装于防水壳101中，用于对经过待检测的液晶面板的LED灯的光转换成电信号，从而实现图像的获取，进而使得摄像撷取装置10可用于检测液晶面板是否具有图像异常等缺陷。透明板104与防水壳101组合形成封闭空间。在本实施例中，透明板104包括承载液晶面板的承载部及连接在承载部周缘的盖合部，透明板104的承载部盖设于防水壳101的开口上，盖合部盖合在防水壳101的开口四周。电机103包括输出轴1031，透明板104进一步连接至电机103的输出轴1031，并可在电机103的驱动下高速旋转而产生离心力。
进一步地，本发明的摄像撷取装置10还包括有清洁装置105，使得防水壳101内部的气压高于外界气压，从而可避免外界的水气进入防水壳101内部并同时将吸附在各个构件上的水汽吹离相应的构件并从透明板104与防水壳101之间的缝隙吹出防水壳101。
LED投射装置20包括LED灯201及连接至LED灯201的LED控制器202，LED灯201位于摄像撷取装置10的上方并对应透明板104。LED控制器202连接至LED灯201，用于控制LED灯201的开启或关闭，从而使得LED灯201可向放置于透明板104上的待检测的液晶面板投射出光线。
当利用检测装置检测液晶面板之前，可启动摄像撷取装置10的电机103，令电机103高速旋转以带动透明板104一同高速旋转。此时，在透明板104自身高速旋转产生的离心作用力下，透明板104上附着的水珠或水渍等被甩离透明板104，达到清洁透明板104的作用，从而使得透明板104上的水珠或水汽不至于导致后续检测过程中CCD图像传感器102获取的图像画面受这些水珠或水渍的影响。同时，清洁装置105开启，其产生吹向防水壳101内部的高压气体。在清洁装置105的高压气体的作用下，外部环境中的水气无法通过透明板104与防水壳101之间的缝隙进入防水壳101中，如此，可进一步避免CCD图像传感器102受水气的影响而降低其图像获取精度。
当CCD图像传感器102上附着的水珠或水渍被吹离防水壳101之后，可将待检测的液晶面板放置于透明板104上并利用LED控制器202打开LED灯201。LED灯201打开后，朝放置于透明板104上的液晶面板投射光线，光线通过液晶面板之后由CCD图像传感器102接收，CCD图像传感器102因此可将经过液晶面板的LED灯转换成电信号，实现对图像的采集等。而后，通过对CCD图像传感器102所采集的图像进行分析便可获知液晶面板是否存在光学影像方面的缺陷，例如，其透光率是否满足设计要求以及其上是否存在有异物等。
可理解的，为节省检测装置所消耗的电能，CCD图像传感器在电机103带动所述透明板104高速旋转的过程中可处于关闭状态，并在透明板104上的水珠或水渍被去除之后待检测的液晶面板放置于透明板104上之后才开启，从而达到节能省电的目的。
进一步的，所述检测装置还包括连接于所述CCD图像传感器102的影像处理装置30，当所述影像撷取装置10获得CCD图像传感器102所获取的待检测液晶面板的图像信息后，影像撷取装置10将图像信息传送至影像处理装置30，影像处理装置30接收图像信息并对其进行分析以判断液晶面上是否存在异常图像或者异物等。
本发明通过所述电机103及CCD图像传感器102安装于防水壳101中，将透明板104盖设于防水壳101的顶侧上并连接至电机103，使得电机103可驱动透明板104高速旋转以藉由自身高速旋转所产生的离心力甩除附着于其上的水珠或水渍，从而达到清洁所述透明板104，提高CCD图像传感器102的图像获取精度，进一步提高检测装置的检测精度。同时，由于设置了可产生高压气体的清洁装置105，使得外界环境中的水气无法通过透明板104与防水壳101之间的缝隙进入防水壳101内部并附着于CCD图像传感器102或透明板104上而影响检测装置的检测精度。
以上所述仅为本发明的优选实施例，并非因此限制其专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (15)

  1. 一种影像撷取装置，其特征在于，包括：防水壳、安装于所述防水壳内的CCD图像传感器及具有输出轴的电机、盖设于所述防水壳一侧并连接至所述电机的输出轴的透明板，所述电机带动所述透明板旋转。
  2. 根据权利要求1所述的影像撷取装置，其特征在于，所述透明板包括承载部及连接在该承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
  3. 根据权利要求1所述的影像撷取装置，其特征在于，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
  4. 一种检测装置，其特征在于，包括影像撷取装置及与所述影像撷取装置相对设置的LED投射装置；所述影像撷取装置包括防水壳、安装于所述防水壳内的CCD图像传感器及具有输出轴的电机、盖设于所述防水壳一侧并连接至所述电机的输出轴且位于所述防水壳外部的透明板，所述电机带动所述透明板旋转。
  5. 根据权利要求4所述的检测装置，所述LED投射装置位于所述影像撷取装置上方且对应所述透明板。
  6. 根据权利要求4所述的检测装置，其特征在于，所述透明板盖设于所述防水壳对应该LED投射装置的一侧上。
  7. 根据权利要求4所述的检测装置，其特征在于，所述透明板包括承载部及连接在所述承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
  8. 根据权利要求7所述的检测装置，其特征在于，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
  9. 根据权利要求4所述的检测装置，其特征在于，所述检测装置还包括连接于所述CCD图像传感器的影像处理装置。
  10. 根据权利要求9所述的检测装置，其特征在于，所述LED投射装置包括LED灯及LED控制器，所述LED控制器用于控制该LED灯的开启或关闭。
  11. 一种检测装置，其特征在于，包括影像撷取装置及LED投射装置，所述影像撷取装置包括防水壳、CCD图像传感器、具有输出轴的电机及透明板，该CCD图像传感器及该电机安装于所述防水壳内，该透明板盖设于该防水壳对应该LED投射装置的一侧上并连接至该电机的输出轴，所述LED投射装置位于所述影像撷取装置的上方并对应该透明板，所述电机带动所述透明板旋转。
  12. 根据权利要求11所述的检测装置，其特征在于，所述透明板包括承载部及连接在所述承载部周缘的盖合部，所述透明板的承载部盖设于所述防水壳上，所述盖合部盖合在所述防水壳四周，所述防水壳与所述透明板组合形成封闭空间，所述CCD图像传感器及所述电机置于该封闭空间内。
  13. 根据权利要求11所述的检测装置，其特征在于，所述防水壳内设有一用于产生高压气体以防止外界水气进入所述防水壳内部的高压气体清洁装置。
  14. 根据权利要求11所述的检测装置，其特征在于，所述检测装置还包括连接于所述CCD图像传感器的影像处理装置。
  15. 根据权利要求11所述的检测装置，其特征在于，所述LED投射装置包括LED灯及LED控制器，所述LED控制器用于控制该LED灯的开启或关闭。
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