WO2014201719A1 - 一种检测装置及检测方法 - Google Patents
一种检测装置及检测方法 Download PDFInfo
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- WO2014201719A1 WO2014201719A1 PCT/CN2013/078503 CN2013078503W WO2014201719A1 WO 2014201719 A1 WO2014201719 A1 WO 2014201719A1 CN 2013078503 W CN2013078503 W CN 2013078503W WO 2014201719 A1 WO2014201719 A1 WO 2014201719A1
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- light emitting
- light receiving
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Classifications
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- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
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- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/10—Dealing with defective pixels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
Definitions
- the invention belongs to the field of manufacturing technology of liquid crystal flat panel display, and more particularly to a detecting device and a detecting method, which can be used for detecting foreign matter on a substrate. Background technique
- An object of the present invention is to provide a detecting device capable of detecting foreign matter such as particles on a substrate and reliably preventing nozzle damage.
- a detecting device wherein the detecting device comprises a body, a gantry, an image capturing unit, a light emitting unit and a light receiving unit, wherein the camera unit is movably disposed on the gantry And the image capturing unit is located above the substrate to be inspected, the light emitting unit and the light receiving unit are respectively located on opposite sides of the substrate to be detected, and the light emitting unit is used along the surface of the substrate to be detected The light is irradiated upward, and the light receiving unit is configured to receive light irradiated by the light emitting unit.
- the light emitting unit is a laser emitting unit.
- the light receiving unit is a CCD image sensor.
- the detecting device further includes a lighting unit disposed beside the image capturing unit.
- the lighting unit is an LED lamp.
- the camera unit is a CCD camera.
- the detecting device further includes a driving unit and a controller, wherein the driving unit is configured to drive the image capturing unit, the light emitting unit, and the light receiving unit to move,
- the controller is configured to control the imaging unit, the driving unit, the light emitting unit, and the light receiving unit.
- the detecting device further includes an alarm, the alarm being connected to the controller to control the alarm to be issued by the controller when the light receiving unit detects an abnormality .
- the detecting device further includes a length direction rail, a width direction rail and a height direction rail, wherein the width direction rail is disposed on the body of the detecting device, the length direction rail and the height
- the directional guide rail is disposed on the gantry, the gantry slides along the width direction rail, and the image capturing unit slides along the longitudinal direction rail and the height direction rail.
- the detecting device further includes a display unit, and the display unit is configured to display an image captured by the image capturing unit.
- the display unit is a computer.
- the present invention also provides a detecting method, wherein the detecting method comprises the following steps: an illuminating step, the light emitting unit emits an optical signal;
- the light receiving unit receives the optical signal emitted by the light emitting unit, and determines whether the received optical signal is abnormal;
- the illumination unit is turned on, the imaging unit is driven to perform imaging for the test, and the taken image is displayed through the display unit.
- the light emitting unit is a laser emitting unit.
- the light receiving unit is a CCD image sensor.
- the lighting unit is an LED lamp.
- the camera unit is a CCD camera.
- a detecting device comprising: a body, a gantry, an image capturing unit, a light emitting unit, and a light receiving unit, wherein the image capturing unit is movably disposed on the gantry, and The image capturing unit is located above the substrate to be inspected, the light emitting unit and the light receiving unit are respectively located in the light to be received, and the light receiving unit is configured to receive the light irradiated by the light emitting unit, and the foreign matter such as particles on the substrate to be detected
- the intensity of the light is changed, whereby the presence of foreign matter is judged based on whether or not the irradiated light is shielded and shielded, and damage such as a nozzle is reliably prevented.
- DRAWINGS 1 is a front elevational view of a detection device in accordance with an embodiment of the present invention.
- Figure 2 is a side elevational view of the detecting device of Figure 1.
- Figure 3 is a schematic electrical control block diagram of the detecting device of Figure 1.
- FIG. 4 is a flow diagram of a method of detecting in accordance with an embodiment of the present invention.
- the detecting device and the detecting method of the present invention can be used for detecting foreign matter on the substrate 100 to be inspected in a TFT process, and preventing nozzles and the like from being damaged by foreign matter (e.g., particles, dust, particles, etc.) on the substrate 100.
- foreign matter e.g., particles, dust, particles, etc.
- the detecting apparatus of this embodiment includes a body 200, a gantry 202, an imaging unit 210, a light emitting unit 300, and a light receiving unit 400.
- the body 200 may be a support structure such as a machine.
- the camera unit 210 is movably disposed on the gantry 202.
- the imaging unit 210 is located above the substrate 100 to be inspected for imaging the upper surface of the substrate 100 to be inspected.
- the light emitting unit 300 and the light receiving unit 400 are respectively located on opposite sides of the substrate 100 to be inspected.
- the light emitting unit 300 is configured to illuminate light along a surface of the substrate 100 to be inspected.
- the light receiving unit 400 is configured to receive light irradiated by the light emitting unit 300. Thereby, the presence or size of the foreign matter is judged based on whether or not the irradiated light is shielded and shielded (for example, the intensity of the optical signal can be converted into a voltage signal for detection).
- the light emitter 300 is a laser emitter 300.
- the light receiver 400 is a CCD image sensor.
- the detecting device further includes a lighting unit 220 disposed beside the image capturing unit 210.
- Lighting unit 220 can be one or more LED lights.
- the camera unit 210 is a CCD (Charge-coupled Device) camera. Thereby, the image pickup unit 210 can clearly capture the state on the substrate 100 to be detected by the illumination unit 220.
- CCD Charge-coupled Device
- the detecting device further includes a driving portion 212 and a controller 10, as shown in FIG.
- the controller 10 is configured to control the imaging unit 210, the driving unit 212, the light emitting unit 300, and the light receiving unit 400.
- the driving unit 212 is configured to drive the image capturing unit 210, the light emitting unit 300, and the light receiving unit 400 to move.
- the gantry 202, the light emitter 300, and the light The receiver 400 performs scanning motion detection, glass-based Plate 100 can remain stationary.
- the scanning direction may be the length direction Y or the width direction X of the substrate 100. In this example, the scanning direction is the width direction X.
- the detecting device further includes an alarm 500.
- the alarm device 500 is connected to the controller 10 to control the alarm device 500 to emit an alarm signal such as an audible alarm, a color alarm, etc., to notify the operator when the optical receiver 400 detects an abnormality. Process it quickly.
- the detecting device further includes a longitudinal direction Y rail 204, a width direction X rail 208, and a height direction Z rail 206.
- the width direction X rail 208 is disposed on the body 200 of the detecting device.
- the lengthwise Y rail 204 and the height direction Z rail 206 are disposed on the gantry 202.
- the gantry 202 slides along the width direction X rail 208.
- the imaging unit 210 slides along the longitudinal direction Y rail 204 and the height direction Z rail 206.
- the gantry 202 and the camera unit 210 can be driven by the driving unit 212 to slide along the respective guide rails.
- the detecting device further includes a display unit 230.
- the display unit 230 is controlled by the controller 10.
- the display unit 230 is configured to display an image captured by the imaging unit 210.
- the display unit 230 can be a computer.
- the controller 10 can be integrated with the display unit 230, i.e., share a single computer to perform its respective functions.
- the present invention also provides a detecting method for detecting foreign matter on the substrate 100 by using the above detecting means.
- the detecting method includes an irradiation step S1, a detecting step S2, and an imaging step S3.
- the irradiation step S1 the light emitting unit 300 emits an optical signal.
- the detecting step S2 the light receiving unit 400 receives the optical signal emitted by the light emitting unit 300, and determines whether the received optical signal is abnormal.
- the imaging step S3 if the received optical signal is abnormal, the illumination unit 220 is turned on, and the imaging unit 210 is driven to perform scanning (for example, in the longitudinal direction Y and the width direction X) on the test substrate 100, and the taken image is passed.
- the display unit 230 is displayed.
- an alarm signal can be issued through the alarm unit 500.
- the detecting device and the detecting method of the present invention when foreign matter is found, it is moved by the console frame 202 and the image capturing unit 210, and the lighting unit 220 (LED light) is turned on, and the image capturing unit 210 is turned on and photographed to find a specific position of foreign matter such as particles. (such as coordinate position, etc.).
- the lighting unit 220 LED light
- the image capturing unit 210 is turned on and photographed to find a specific position of foreign matter such as particles. (such as coordinate position, etc.).
- the camera unit 210 may have an amplification function, which helps to better view the particles, and is convenient for the worker. Quickly judge and quickly process, and improve the direction.
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- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
一种检测装置,其包括本体(200)、台架(202)、摄像单元(210)、光发射单元(300)及光接收单元(400),摄像单元(210)可移动地设置在台架(202)上,且摄像单元(210)位于待检测基板(100)上方,光发射单元(300)和光接收单元(400)分别位于待检测基板(100)的相对两侧,且光发射单元(300)用于沿所述待检测基板(100)的表面上方照射光,光接收单元(400)元用于接收光发射单元(300)照射的光。该检测装置可根据照射的光是否被遮蔽以及遮蔽的程度,判断出异物的存在,可靠地防止喷嘴等损伤。还提供了一种检测方法。
Description
一种检测装置及检测方法 技术领域
本发明属于液晶平板显示的制造技术的领域, 尤其涉及一种检测装置及检测 方法, 其可用于检测基板上的异物。 背景技术
液晶电视、 液晶电脑等平板显示器越来越受到大众的欢迎。 在平板显示器的 制造产业中, 异物(例如尘埃等微粒)是影响生产之重要问题。 例如, 在薄膜晶 体管的制程(TFT process ) 中, 利用彩墨涂布机进行光阻涂敷。 其中, 彩墨涂布 机主要是依靠狭缝喷嘴将光阻均匀涂布在 ^反上的装置, 涂布时喷嘴距离基板近 (例如约 120um )。 因此, 若基板表面上粘附的颗粒碰到喷嘴, 则容易导致喷嘴受 到损伤, 甚至报废。 发明内容
本发明的目的在于提供一种检测装置, 其能够检测出基板上颗粒等异物, 可 靠地防止喷嘴损伤。
本发明通过如下技术方案实现: 一种检测装置, 其中, 所述检测装置包括本 体、 台架、 摄像单元、 光发射单元及光接收单元, 所述摄像单元可移动地设置在 所述台架上, 且所述摄像单元位于待检测基板的上方, 所述光发射单元和所述光 接收单元分别位于待检测基板的相对两侧, 且所述光发射单元用于沿所述待检测 基板的表面上方照射光, 所述光接收单元用于接收所述光发射单元照射的光。
作为上述技术方案的进一步改进, 所述光发射单元为激光发射单元。
作为上述技术方案的进一步改进, 所述光接收单元为 CCD图像传感器。 作为上述技术方案的进一步改进, 所述检测装置还包括设置在所述摄像单元 旁边的照明单元。
作为上述技术方案的进一步改进, 所述照明单元为 LED灯。
作为上述技术方案的进一步改进, 所述摄像单元为 CCD摄像机。
作为上述技术方案的进一步改进, 所述检测装置还包括驱动部及控制器, 所 述驱动部用于驱动所述摄像单元、 所述光发射单元及所述光接收单元运动, 所述
控制器用于控制所述摄像单元、 所述驱动部、 所述光发射单元及所述光接收单元。 作为上述技术方案的进一步改进, 所述检测装置还包括警报器, 所述警报器 与所述控制器连接以在所述光接收单元检测出异常时通过所述控制器控制所述警 报器发出警报。
作为上述技术方案的进一步改进, 所述检测装置还包括长度方向导轨、 宽度 方向导轨及高度方向导轨, 所述宽度方向导轨设置在所述检测装置的本体上, 所 述长度方向导轨及所述高度方向导轨设置在所述台架上, 所述台架沿所述宽度方 向导轨上滑动, 所述摄像单元沿所述长度方向导轨及所述高度方向导轨上滑动。
作为上述技术方案的进一步改进, 所述检测装置还包括显示单元, 所述显示 单元用于显示所述摄像单元拍摄的图像。
作为上述技术方案的进一步改进, 所述显示单元为计算机。
本发明还提供了一种检测方法, 其中, 所述检测方法包括以下步骤: 照射步骤, 光发射单元发出光信号;
检测步骤, 光接收单元接收光发射单元发出的光信号, 并判断接收到的光信 号是否异常;
摄像步骤, 如果接收到的光信号异常, 则开启照明单元, 驱动摄像单元以便 对待测试^反进行摄像, 并将摄取的图像通过显示单元显示出来。
作为上述技术方案的进一步改进, 所述光发射单元为激光发射单元。
作为上述技术方案的进一步改进, 所述光接收单元为 CCD图像传感器。
作为上述技术方案的进一步改进, 所述照明单元为 LED灯。
作为上述技术方案的进一步改进, 所述摄像单元为 CCD摄像机。
本发明的有益效果是: 根据本发明的检测装置, 其包括本体、 台架、 摄像单 元、 光发射单元及光接收单元, 所述摄像单元可移动地设置在所述台架上, 且所 述摄像单元位于待检测基板上方, 所述光发射单元和所述光接收单元分别位于待 光, 所述光接收单元用于接收所述光发射单元照射的光, 当待检测基板上有颗粒 等异物时, 则会引起光的强度的变化, 由此, 根据照射的光是否被遮蔽以及遮蔽 的程度, 判断出异物的存在, 可靠地防止喷嘴等损伤。
附图说明
图 1是根据本发明的一个具体实施例的检测装置的正面示意图。
图 2是图 1的检测装置的侧面示意图。
图 3是图 1的检测装置的示意性电气控制框图。
图 4是根据本发明的一个具体实施例的检测方法的流程示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行进一步的说明。
本发明的检测装置和检测方法可用于在薄膜晶体管的制程(TFT process ) 中 检测待检测基板 100上的异物, 防止喷嘴等被基板 100上的异物(例如微粒、 粉 尘、 颗粒等)损伤。
如图 1和图 2所示, 本实施例的检测装置包括本体 200、 台架(gantry ) 202、 摄像单元 210、 光发射单元 300及光接收单元 400。 其中, 本体 200可以是机台等 支撑结构。 所述摄像单元 210可移动地设置在所述台架 202上。 且所述摄像单元 210位于待检测基板 100上方, 以便对待检测基板 100上表面进行摄像。 所述光发 射单元 300和所述光接收单元 400分别位于待检测基板 100的相对两侧。 其中, 所述光发射单元 300用于沿所述待检测基板 100的表面上方照射光。 相应地, 所 述光接收单元 400用于接收所述光发射单元 300照射的光。 由此, 根据照射的光 是否被遮蔽以及遮蔽的程度 (例如可以将光信号的强弱转换成电压信号进行检 测), 判断出异物的存在及大小。 本例中, 所述光发射器 300为激光发射器 300。 而且, 所述光接收器 400为 CCD图像传感器。
本实施例中, 如图 1至图 3所示, 所述检测装置还包括设置在所述摄像单元 210旁边的照明单元 220。 照明单元 220可以为一个或多个 LED灯。 所述摄像单 元 210为 CCD ( Charge-coupled Device )摄像机。 由此, 可以通过照明单元 220, 使摄像单元 210清楚地拍摄待检测基板 100上的状态。
另外, 在本发明的一个具体实施例中, 所述检测装置还包括驱动部 212及控 制器 10,如图 3所示。所述控制器 10用于控制所述摄像单元 210、所述驱动部 212、 所述光发射单元 300和所述光接收单元 400。所述驱动部 212用于驱动所述摄像单 元 210、 所述光发射单元 300及所述光接收单元 400运动, 在进行检测时, 所述台 架 202、 所述光发射器 300及所述光接收器 400进行扫描方式的检测运动, 玻璃基
板 100可保持静止。 扫描方向可以为基板 100的长度方向 Y或宽度方向 X。 在本 例中, 扫描方向为宽度方向 X。
此外, 所述检测装置还包括警报器 500。 所述警报器 500与所述控制器 10连 接,以便在所述光接收器 400检测出异常时通过所述控制器 10控制所述警报器 500 发出声音警报、 颜色警报等警报信号, 通知操作人员快速进行相应处理。
在本实施例中,如图 1和图 2所示,所述检测装置还包括长度方向 Y导轨 204、 宽度方向 X导轨 208及高度方向 Z导轨 206。 所述宽度方向 X导轨 208设置在所 述检测装置的本体 200上。 所述长度方向 Y导轨 204及所述高度方向 Z导轨 206 设置在所述台架 202上。 所述台架 202沿所述宽度方向 X导轨 208上滑动。 所述 摄像单元 210沿所述长度方向 Y导轨 204及所述高度方向 Z导轨 206上滑动。 本 例中, 可以通过驱动部 212驱动台架 202、 摄像单元 210沿各自所在的导轨滑动。
本实施例中, 所述检测装置还包括显示单元 230。 显示单元 230由控制器 10 控制。 所述显示单元 230用于显示所述摄像单元 210拍摄的图像。 例如, 所述显 示单元 230可以为计算机。 而且, 控制器 10可以与显示单元 230集成在一起, 即 共用一台计算机实现其各自功能。
如图 4所示, 本发明还提供了一种检测方法, 其利用上述检测装置检测基板 100上的异物。 所述检测方法包括照射步骤 Sl、检测步骤 S2和摄像步骤 S3。 照射 步骤 S1中, 光发射单元 300发出光信号。 检测步骤 S2中, 光接收单元 400接收 光发射单元 300发出的光信号,并判断接收到的光信号是否异常。摄像步骤 S3中, 如果接收到的光信号异常, 则开启照明单元 220, 驱动摄像单元 210以便对待测试 基板 100进行扫描式(例如沿长度方向 Y和宽度方向 X )摄像, 并将摄取的图像 通过显示单元 230显示出来。 另外, 如果接收到的光信号无异常, 则回到照射步 骤 Sl。 而且, 如果接收到的光信号异常, 还可以通过警报部 500发出警报信号。
根据本发明的检测装置及检测方法, 当发现异物时, 通过控制台架 202、摄像 单元 210移动, 同时照明单元 220 ( LED灯)点亮, 摄像单元 210开启并摄像找 到颗粒等异物的具体位置(例如坐标位置等)。利用显示单元 230显示摄像单元 210 拍摄的图像, 可以更方便察看异物, 耗时少, 且无需工作人员进入内部, 可以有 效地节省时间, 避免工作人员打开设备进入内部造成的二次污染。 另外, 摄像单 元 210可以具有放大功能, 通过该放大功能有助于更好地察看颗粒, 便于工作人
员快速判断和快速处理, 并进行相应方向的改善,。
以上具体实施方式对本发明进行了详细的说明, 但这些并非构成对本发明的 限制。 本发明的保护范围并不以上述实施方式为限, 但凡本领域普通技术人员根 据本发明所揭示内容所作的等效修饰或变化, 皆应纳入权利要求书中记载的保护 范围内。
Claims
1、 一种检测装置, 其中, 所述检测装置包括本体、 台架、 摄像单元、 光发射 单元及光接收单元, 所述摄像单元可移动地设置在所述台架上, 且所述摄像单元 位于待检测基板的上方, 所述光发射单元和所述光接收单元分别位于待检测基板 的相对两侧, 且所述光发射单元用于沿所述待检测基板的表面上方照射光, 所述 光接收单元用于接收所述光发射单元照射的光。
2、根据权利要求 1所述的检测装置,其中, 所述光发射单元为激光发射单元。
3、 根据权利要求 1所述的检测装置, 其中, 所述光接收单元为 CCD图像传 感器。
4、 根据权利要求 1所述的检测装置, 其中, 所述检测装置还包括设置在所述 摄像单元旁边的照明单元。
5、 根据权利要求 4所述的检测装置, 其中, 所述照明单元为 LED灯。
6、 根据权利要求 1所述的检测装置, 其中, 所述摄像单元为 CCD摄像机。
7、 根据权利要求 1所述的检测装置, 其中, 所述检测装置还包括驱动部及控 制器, 所述驱动部用于驱动所述摄像单元、 所述光发射单元及所述光接收单元运 动, 所述控制器用于控制所述摄像单元、 所述驱动部、 所述光发射单元及所述光 接收单元。
8、 根据权利要求 7所述的检测装置, 其中, 所述检测装置还包括警报器, 所 述警报器与所述控制器连接以在所述光接收单元检测出异常时通过所述控制器控 制所述警报器发出警报。
9、 根据权利要求 7所述的检测装置, 其中, 所述检测装置还包括长度方向导 轨、 宽度方向导轨及高度方向导轨, 所述宽度方向导轨设置在所述检测装置的本 体上, 所述长度方向导轨及所述高度方向导轨设置在所述台架上, 所述台架沿所 述宽度方向导轨上滑动, 所述摄像单元沿所述长度方向导轨及所述高度方向导轨 上滑动。
10、 根据权利要求 7所述的检测装置, 其中, 所述检测装置还包括显示单元, 所述显示单元用于显示所述摄像单元拍摄的图像。
11、 根据权利要求 10所述的检测装置, 其中, 所述显示单元为计算机。
12、 一种检测方法, 其中, 所述检测方法包括以下步骤:
照射步骤, 光发射单元发出光信号;
检测步骤, 光接收单元接收光发射单元发出的光信号, 并判断接收到的光信 号是否异常;
摄像步骤, 如果接收到的光信号异常, 则开启照明单元, 驱动摄像单元以便 对待测试^反进行摄像, 并将摄取的图像通过显示单元显示出来。
13、 根据权利要求 12所述的检测方法, 其中, 所述光发射单元为激光发射单 元。
14、 根据权利要求 12所述的检测方法, 其中, 所述光接收单元为 CCD图像 传感器。
15、 根据权利要求 12所述的检测方法, 其中, 所述照明单元为 LED灯。
16、 根据权利要求 12所述的检测方法, 其中, 所述摄像单元为 CCD摄像机。
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| US10870012B2 (en) | 2013-06-14 | 2020-12-22 | Cardiothrive, Inc. | Biphasic or multiphasic pulse waveform and method |
| US11147962B2 (en) | 2013-06-14 | 2021-10-19 | Cardiothrive, Inc. | Multipart non-uniform patient contact interface and method of use |
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| CN103353459A (zh) | 2013-10-16 |
| US20170108447A1 (en) | 2017-04-20 |
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