WO2016155184A1 - 光源装置及对位标记照相识别系统 - Google Patents

光源装置及对位标记照相识别系统 Download PDF

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Publication number
WO2016155184A1
WO2016155184A1 PCT/CN2015/086500 CN2015086500W WO2016155184A1 WO 2016155184 A1 WO2016155184 A1 WO 2016155184A1 CN 2015086500 W CN2015086500 W CN 2015086500W WO 2016155184 A1 WO2016155184 A1 WO 2016155184A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
source device
space
mounting hole
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.)
Ceased
Application number
PCT/CN2015/086500
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English (en)
French (fr)
Inventor
王文浩
洪艳平
王岩
董宝杰
胥海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/911,209 priority Critical patent/US20170032511A1/en
Publication of WO2016155184A1 publication Critical patent/WO2016155184A1/zh
Anticipated expiration legal-status Critical
Priority to US16/398,765 priority patent/US20190259151A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30148—Semiconductor; IC; Wafer

Definitions

  • the present application relates to the field of display manufacturing technology, and in particular to a light source device and a registration mark photo recognition system.
  • the alignment technology has extremely high precision for the alignment system.
  • the liquid crystal display field is increasingly developing towards high-end products.
  • High-precision (Pixel per inch, ppi) high-precision products are the demand direction of the future market.
  • the alignment accuracy directly affects the quality of the products. Therefore, the alignment technology The rapid development is an important guarantee for improving product quality.
  • the prior art substrate alignment mark (Mark) camera recognition system is shown in FIG. 1 , and includes a camera 103 , an alignment adjustment scale 101 and an adjustment knob 102 for adjusting the focal length of the camera 103 , a light source box 105 , a support camera 103 , and a light source box 105 .
  • the support frame 104, the light source box 105 is disposed between the substrate 108 to be aligned and the camera 103, and the light emitted by the light source box 105 is transmitted to the substrate 108 and the alignment mark 106 engraved thereon.
  • FIG. 2 A schematic view of a prior art light source box 105 and a schematic diagram of its optical path are shown in FIG. 2, including an outer frame unit, a light source (not shown) disposed on one side of the outer frame unit, and a glass functioning to reflect and transmit light.
  • the plate 201 and the glass plate 201 are located inside the outer frame unit of the light source box 105 and are placed at an inclination of 45°.
  • the incident light 202 emitted from the light source located on one side is transmitted to the glass plate 201, and is reflected by the glass plate 201 to obtain the first reflected light.
  • the second reflected light 204 is obtained by being reflected by the substrate 108, and transmitted to the camera 103, and the image is located above the light source box.
  • Head 103 receives the light reflected from alignment Mark 106, thereby capturing the Mark position and shape.
  • the light emitted by the side light source is reflected by the intermediate transparent glass plate to illuminate the alignment mark, the illuminance on the Mark 106 is small, the Mark contrast captured by the camera is weak, and the TFT array substrate and the color filter substrate are The background color of the Mark on the CF is different from the contrast formed after the illumination, and it is easy for the camera to capture the Mark on the TFT substrate and not capture the Mark on the CF substrate.
  • the purpose of the technical solution of the present application is to provide a light source device and a aligning mark photographic recognition system, which can improve the illuminance of the photographic alignment of the substrate, so as to improve the recognition ability of the camera substrate to improve the alignment accuracy.
  • the present application provides a light source device, the light source device includes: an outer casing body, forming a receiving space, and the outer casing body includes a light transmissive surface, and the outer casing body is further provided with a positioning mounting hole along which the positioning device is mounted In the axial direction of the hole, the positioning mounting hole penetrates into the receiving space to form a projection through space;
  • a plurality of illuminating light sources are disposed inside the accommodating space, and the plurality of illuminating light sources are disposed around the projection through space for respectively emitting light toward a direction in which the translucent surface is disposed.
  • the light source device described above wherein the outer casing includes a first surface opposite to the light transmissive surface, the positioning mounting hole is disposed on the first surface, and the projection through space is formed as The positioning mounting hole of the first surface extends to a space region of the light transmitting surface along an axial direction of the positioning mounting hole.
  • the light source device described above wherein the outer casing includes a first surface opposite to the light transmissive surface, the positioning mounting hole penetrating the light transmissive surface and the first surface, the projection The through space is formed in an axial direction along the positioning mounting hole, and the positioning mounting hole is a space region extending between the light transmitting surface and the first surface.
  • the light transmissive surface is parallel to the first surface.
  • the light source device described above wherein the light source device further comprises a light source mounting plate for setting the light emitting source; the light source mounting plate has a curved arc shape, and the light source mounting plate The center of the light is located on a side of the light-transmitting surface, and the light-emitting source is disposed according to a curved curvature of the light source mounting plate.
  • the light source device described above wherein an inner surface of the accommodating space is formed in a curved arc shape, and the light source mounting plate is disposed on an inner surface of the accommodating space, formed according to an inner surface of the accommodating space Curved arc settings.
  • the light source device described above wherein the light source mounting plate is provided with a reflecting plate on one side of the center of the circle; the reflecting plate is disposed according to a bending curvature of the light source mounting plate, The light emitted by the illuminating light source is reflected toward the light transmitting surface.
  • a center of curvature of the light source mounting plate having a curved arc shape is located on a side of the light transmitting surface away from the light emitting source.
  • the light transmissive surface is provided with a light diffusing plate for uniformly transmitting light.
  • the light source device described above wherein the illuminating light source comprises a plurality of columns of light emitting diode (LED) lamps uniformly distributed around a periphery of the projection through space, and each column of LED lamps is perpendicular to the positioning The direction of the axis of the mounting hole is aligned from the projection through space in a direction away from the projected through space.
  • LED light emitting diode
  • the present application also provides a aligning mark photographic recognition system, including a camera for photographing a position of a registration mark on a substrate, further comprising the light source device according to any one of the above, wherein the light source device passes through the positioning mounting hole Installed on the camera.
  • the above-described alignment mark photograph recognition system wherein the alignment mark photograph recognition system further comprises: an adjustment knob for adjusting a focal length of the camera and an adjustment scale for focus alignment.
  • a plurality of illuminating light sources in the light source device are disposed around the camera.
  • the camera is disposed in the positioning mounting hole, and the image capturing end of the camera is located inside the receiving space of the light source device.
  • the camera is disposed in the positioning mounting hole and penetrates the light source device, and the image capturing end of the camera is located outside the receiving space of the light source device.
  • the light source device is formed as an annular light source, and is applied to a substrate alignment Mark photography recognition system,
  • the light emitted by the illuminating light source can be directly irradiated to the Mark position on the substrate.
  • the light reaching the Mark position on the substrate is increased, thereby improving the illuminance of the substrate during photographic recognition, thereby facilitating the improvement of the camera substrate.
  • the recognition ability of the alignment achieves the effect of improving the alignment accuracy.
  • FIG. 1 is a schematic perspective view showing a prior art substrate alignment mark photo recognition system
  • FIG. 2 is a schematic view showing an optical path in a light source box of the prior art
  • FIG. 3 is a schematic side perspective view showing the light source device and the camera mounted in the first embodiment of the present application;
  • FIG. 4 is a schematic top plan view showing a light source device according to a first embodiment of the present application.
  • FIG. 5 is a side perspective structural view showing a light source device and a camera mounted in accordance with a second embodiment of the present application;
  • FIG. 6 is a partial perspective structural view of a aligning mark photographic recognition system according to an embodiment of the present application.
  • the outer casing forms an accommodating space, and the outer casing includes a light transmitting surface, and the outer casing further defines a positioning mounting hole, wherein the positioning mounting hole is in the accommodating direction along the axial direction of the positioning mounting hole Forming a projection through space in the space;
  • a plurality of illuminating light sources are disposed inside the accommodating space, and the plurality of illuminating light sources are disposed around the projection through space for respectively emitting light toward a direction in which the translucent surface is disposed.
  • the illumination light source is disposed around the space in the housing accommodating space to form a ring light source.
  • the camera can be inserted into the projection through space through the positioning mounting hole. Therefore, the illuminating light source is dispersed around the camera, and the light emitted by the illuminating light source can be directly irradiated to the Mark position on the substrate. Compared with the prior art, the light reaching the Mark position on the substrate is increased, thereby improving the substrate photographic recognition. Illumination time, In order to improve the recognition ability of the alignment of the camera substrate, the effect of improving the alignment accuracy is achieved.
  • FIG. 3 is a schematic side view showing the structure of a light source device and a camera mounted according to the first embodiment of the present application.
  • the light source device of the present embodiment includes: an outer casing 10 having an accommodating space for accommodating the illuminating light source 20, and the outer casing 10 includes a light transmitting surface 11 through which the light emitted by the illuminating light source 20 can pass.
  • the smooth surface 11 is permeable; in addition, a positioning mounting hole 12 is further provided on the outer casing 10.
  • the outer casing 10 includes a first surface 13 opposite to the light transmissive surface 11, and as shown in FIG. 3, the positioning mounting hole 12 is formed to penetrate the first surface 13 and the light transmissive surface 11.
  • the positioning mounting hole 12 extends between the light transmitting surface 11 and the first surface 13 to form a space region, that is, The above projections penetrate the space.
  • the positioning mounting hole 12 is disposed at a center position of the outer casing 10.
  • the light transmitting surface 11 is located on the lower surface of the outer casing 10, and the first surface 13 is located on the upper surface of the outer casing 10, the substrate pair
  • the camera 30 of the photographic recognition system can be inserted from the first surface 13 of the outer casing 10 toward the translucent surface 11 and exposed through the entire projection through the space on the translucent surface 11, so that the entire outer casing 10 of the light source device is sleeved
  • the translucent surface 11 is opposite to the substrate to be aligned 40.
  • the camera 30 is located above the Mark 41 on the substrate 40 to be used for capturing the image of the Mark 41.
  • the illumination source 20 in the light source device is disposed around the camera 30.
  • Light is emitted toward the direction in which the light-transmitting surface 11 is disposed, so that the light emitted by the light-emitting source 20 can be directly transmitted to the Mark 41 of the alignment substrate 40 after passing through the light-transmitting surface 11, and is disposed around the camera 30 by the light-emitting source 20
  • the position of the camera 30 in the 360-degree direction can be illuminated to avoid the formation of dark corners.
  • the light source device of the structure since the light emitted by the light source can be directly irradiated to the Mark position on the substrate, compared with the prior art, the light source provided does not block the image capturing area of the camera and reaches the Mark position on the substrate. The increase of the light can improve the illumination of the substrate during the photographic recognition, thereby facilitating the recognition of the alignment of the camera substrate.
  • the light transmitting surface 11 and the opposite first surface 13 are parallel to each other, so that the light source device is formed into a cylindrical box structure, as shown in FIG.
  • the three-dimensional diagram is shown.
  • the light source device further includes a light source for setting
  • the light source mounting plate 21 of the light source mounting plate 21 has a curved arc shape, and the center of the curved arc is located on a side where the light transmitting surface 11 is disposed, and the light source 20 is set according to the bending curvature of the light source mounting plate 21, and the kind is adopted.
  • the arcs are arranged in such a way that the light emitted by the illuminating source 20 is directed toward the Mark 41 of the substrate 40, so that the light is more concentrated, and most of the light can be irradiated to the Mark 41.
  • the light source mounting plate 21 is disposed on a side of the center of the curved arc, that is, a side on which the light source 20 is disposed, and a reflective plate 24 is disposed on the side of the light source mounting plate 21, so that the light source mounting plate is used.
  • the curved curvature of 21 is used to reflect the light emitted by the illuminating light source 20 toward the light transmitting surface 11, further ensuring that the light emitted from the illuminating light source 20 is irradiated to the Mark 41 of the substrate 40.
  • the inner surface of the accommodating space of the outer casing 10 may be formed into a curved arc shape, and the light source mounting plate 21 may be disposed on the inner surface of the accommodating space, and formed in a curved arc shape according to the inner surface of the accommodating space.
  • the inner surface of the outer space of the outer casing 10 directly forms a curved arc-shaped light source mounting plate 21, and the illuminating light source 20 is directly disposed on the inner surface of the accommodating space of the outer casing 10.
  • a light diffusing plate is further disposed at the light transmitting surface 11.
  • the illuminating light source 20 includes a plurality of columns of LED lamps 25 uniformly distributed around the periphery of the projection through space provided by the camera 30, and each column of the LED lamps 25 is mounted perpendicular to the positioning.
  • the direction of the axis of the hole 12 is arranged from the projection through space to the direction away from the projection through space, and thus is formed as a light source of a plurality of rows of LED lamps arranged in a radial shape on the periphery of the positioning mounting hole 12 as shown in FIG. It is ensured that the illuminating light source can be evenly distributed around the periphery of the camera 30.
  • the present application further provides the light source device of the second embodiment.
  • the side perspective structure of the light source device is as shown in FIG. 5, and is the same as the first embodiment, including: the outer casing.
  • the body 10 is formed with an accommodating space for accommodating the illuminating light source 20, and the outer casing 10 includes a light transmitting surface 11 through which light emitted from the illuminating light source 20 can be permeable; and further disposed on the outer casing 10 There is a positioning mounting hole 12.
  • the positioning mounting hole 12 is disposed on the first surface 13 opposite to the light transmitting surface 11, and the projection through space mentioned in the present application is formed along the positioning mounting hole.
  • the axial direction of 12 extends from the positioning mounting hole 12 of the first surface 13 to the spatial area of the light transmitting surface 11.
  • the arrangement structure is used when mounted on a substrate alignment camera recognition system.
  • the camera 30 of the substrate alignment photographic recognition system can be inserted from the first surface 13 of the outer casing 10 toward the translucent surface 11, but the image capturing end of the camera 30 is not exposed through the translucent surface 11, but Located inside the outer casing 10, the light source device is sleeved at the image capturing end of the camera 30.
  • the light transmissive surface 11 is opposite to the substrate to be aligned 40, and the camera 30 is located above the light transmissive surface 11 and the Mark 41 on the substrate to be aligned 40 for collecting the Mark 41 through the translucent surface 11. image.
  • the illuminating light source 20 in the light source device is disposed around the camera 30, and emits light toward the direction in which the light transmitting surface 11 is disposed, so that the light emitted by the illuminating light source 20 can be directly transmitted to the mark 41 of the aligning substrate 40 after passing through the transparent surface 11.
  • the illuminating light source 20 since the illuminating light source 20 is disposed around the camera 30, the position of the camera 30 in the 360-degree direction can be illuminated to avoid the formation of a dark corner. Therefore, as in the first embodiment, the light source device of the second embodiment can also improve the illuminance of the substrate during photographic recognition, thereby facilitating the recognition capability of the alignment of the camera substrate.
  • the camera 30 needs to take image through the light transmissive surface 11, so that the light source device of the first embodiment is a better setting to ensure the sharpness of the image taken. structure.
  • the light source device further includes a light source mounting plate 21 for arranging the illuminating light source 20, and has a curved arc shape, and the light source mounting plate 20 is provided with a side surface of the illuminating light source 20.
  • a reflection plate 24 is attached; and preferably, a light diffusion plate is further disposed at the light transmission surface 11.
  • the manner of setting the illuminating light source 20 can also be the same as that of the first embodiment as shown in FIG. 4, and details are not described herein again.
  • Another embodiment of the present application further provides a aligning mark photographic recognition system, which is applied to substrate alignment in the manufacture of a display device, including a camera for photographing the position of the alignment mark on the substrate, and a light source device of the above structure.
  • the light source device is mounted on the camera through the positioning mounting hole, and the camera captures the position of the alignment mark through the projection through space and the transparent surface.
  • the stereo structure of the embodiment of the aligning mark photographic recognition system can be referred to as shown in FIG. 6, and specifically includes:
  • the camera 30 is located above the Mark 41 on the substrate to be aligned 40 for capturing the image of the Mark 41.
  • the light source 20 in the light source device is disposed around the camera 30, respectively, and is disposed toward the transparent surface 11 . The direction emits light.
  • the aligning mark photographic recognition system of the light source device can ensure the recognition capability of the camera substrate alignment.

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  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
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Abstract

一种光源装置包括：外壳体（10），形成一容纳空间，且所述外壳体（10）包括一透光面（11），所述外壳体（10）上还设置有一定位安装孔（12），沿所述定位安装孔（12）的轴线方向，所述定位安装孔（12）在所述容纳空间内形成一投影贯穿空间；多个发光光源（20），设置于所述容纳空间的内部，多个所述发光光源（20）围绕所述投影贯穿空间设置，用于分别朝所述透光面（11）的设置方向发射光。

Description

光源装置及对位标记照相识别系统
相关申请的交叉引用
本申请主张在2015年3月31日在中国提交的中国专利申请号No.201510149687.X的优先权，其全部内容通过引用包含于此。
技术领域
本申请涉及显示器制造技术领域，尤其是指一种光源装置及对位标记照相识别系统。
背景技术
在液晶面板的阵列、彩膜、成盒及模组工艺中，由于基板在运输、夹持及加工过程中无法精确的将基板放置到理想的位置，因此在放置之前要对基板的位置进行对位、矫正，以确保相应操作的精准。基板对位的精准直接影响到液晶显示器的生产品质，因此，对位技术对对位系统的精度要求极高。目前，液晶显示领域越来越向高精端产品发展，高分辨率(Pixel per inch，ppi)高精度产品是未来市场的需求方向，对位精度直接影响到产品的品质，因此，对位技术的快速发展是提高产品品质的重要保证。
现有技术的基板对位标记(Mark)照相识别系统如图1所示，包括摄像头103、调节摄像头103焦距的对位调节标尺101和调节旋钮102、光源盒105、支撑摄像头103和光源盒105的支撑架104，光源盒105设置于待对位的基板108和摄像头103之间，光源盒105发出的光传输至基板108及刻在其上的对位Mark 106上。
现有技术的光源盒105的局部示意图及其光路示意图如图2所示，包括外框单元、设置于外框单元一侧的光源(图中未显示)、起到反射和透射光作用的玻璃板201，玻璃板201位于光源盒105的外框单元的内部，且倾斜45°放置，位于一侧的光源发出的入射光202传输至玻璃板201，经玻璃板201反射后获得第一反射光203，传输至基板108上的对位Mark 106后，经基板108反射获得第二反射光204，传输至摄像头103处，位于光源盒上方的摄像 头103接收到来自对位Mark 106反射的光，从而捕获到Mark位置与形状。
现有技术该种通过中间透明玻璃板反射侧面光源发射的光来照射对位Mark的方式，其到达Mark106上的光照度较小，摄像头捕获的Mark对比度较弱，且由于TFT阵列基板与彩膜基板CF上Mark的背景颜色和光照后形成的对比度不同，容易出现摄像头捕获到TFT基板上的Mark而不能捕获到CF基板上的Mark的现象。
发明内容
本申请技术方案的目的是提供一种光源装置及对位标记照相识别系统，能够提高对基板对位照相识别时的光照度，以有利于提高摄像头基板对位的识别能力，以提高对位精度。
本申请提供一种光源装置，所述光源装置包括：外壳体，形成一容纳空间，且所述外壳体包括一透光面，所述外壳体上还设置有一定位安装孔，沿所述定位安装孔的轴线方向，所述定位安装孔贯穿在所述容纳空间内形成一投影贯穿空间；
多个发光光源，设置于所述容纳空间的内部，多个所述发光光源围绕所述投影贯穿空间设置，用于分别朝所述透光面的设置方向发射光。
优选地，上述所述的光源装置，其中，所述外壳体包括与所述透光面相对的第一表面，所述定位安装孔设置于所述第一表面上，所述投影贯穿空间形成为沿所述定位安装孔的轴线方向，由所述第一表面的所述定位安装孔延伸至所述透光面的空间区域。
优选地，上述所述的光源装置，其中，所述外壳体包括与所述透光面相对的第一表面，所述定位安装孔贯穿所述透光面和所述第一表面，所述投影贯穿空间形成为沿所述定位安装孔的轴线方向，所述定位安装孔在所述透光面和所述第一表面之间延伸的空间区域。
优选地，上述所述的光源装置，其中，所述透光面与所述第一表面相平行。
优选地，上述所述的光源装置，其中，所述光源装置还包括用于设置所述发光光源的光源安装板；所述光源安装板呈弯曲弧形，且所述光源安装板 的圆心位于所述透光面所设置的一侧，所述发光光源依据所述光源安装板的弯曲弧度设置。
优选地，上述所述的光源装置，其中，所述容纳空间的内表面形成为弯曲弧形，所述光源安装板设置于所述容纳空间的内表面，依据所述容纳空间的内表面所形成弯曲弧形设置。
优选地，上述所述的光源装置，其中，所述光源安装板朝向所述圆心的一侧面上设置有反射板；所述反射板依据所述光源安装板的弯曲弧度设置，用于使所述发光光源所发出光朝所述透光面反射。
优选地，上述所述的光源装置，其中，呈弯曲弧形的所述光源安装板的弯曲曲率的圆心位于所述透光面远离所述发光光源的一侧。
优选地，上述所述的光源装置，其中，所述透光面上设置有用于使光均匀透过的光扩散板。
优选地，上述所述的光源装置，其中，所述发光光源包括多列的发光二极管(LED)灯，均匀分布于所述投影贯穿空间的外围，且每一列的LED灯沿垂直于所述定位安装孔的轴线的方向，从靠近所述投影贯穿空间朝远离所述投影贯穿空间的方向排列。
本申请还提供一种对位标记照相识别系统，包括用于拍摄基板上对位标记位置的摄像头，其中还包括以上任一项所述的光源装置，其中所述光源装置通过所述定位安装孔装设于所述摄像头上。
优选地，上述所述的对位标记照相识别系统，其中，所述对位标记照相识别系统还包括：用于调节所述摄像头焦距的调节旋钮和用于焦距对位的调节标尺。
优选地，所述光源装置中的多个发光光源环绕所述摄像头设置。
优选地，所述摄像头穿设在所述定位安装孔中，且所述摄像头的取像端位于所述光源装置的容纳空间的内部。
优选地，所述摄像头穿设在所述定位安装孔中并贯穿所述光源装置，且所述摄像头的取像端位于所述光源装置的容纳空间的外部。
本申请具体实施例上述技术方案中的至少一个具有以下有益效果：
所述光源装置形成为环形光源，应用于基板对位Mark照相识别系统时， 发光光源发出的光可以直接照射至基板上的Mark位置处，相较于现有技术，到达基板上Mark位置的光线增加，从而能够提高基板对位照相识别时的光照度，以有利于提高摄像头基板对位的识别能力，达到提高对位精度的效果。
附图说明
图1表示现有技术的基板对位标记照相识别系统的立体结构示意图；
图2表示现有技术的光源盒内的光路示意图；
图3表示本申请第一实施例所述光源装置与摄像头配合安装的侧面透视结构示意图；
图4表示本申请第一实施例所述光源装置的俯视结构示意图；
图5表示本申请第二实施例所述光源装置与摄像头配合安装的侧面透视结构示意图；
图6表示本申请实施例所述对位标记照相识别系统的部分立体结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图及具体实施例对本申请进行详细描述。
本申请具体实施例所述光源装置，包括：
外壳体，形成一容纳空间，且所述外壳体包括一透光面，所述外壳体上还设置有一定位安装孔，沿所述定位安装孔的轴线方向，所述定位安装孔在所述容纳空间内形成一投影贯穿空间；
多个发光光源，设置于所述容纳空间的内部，多个所述发光光源围绕所述投影贯穿空间设置，用于分别朝所述透光面的设置方向发射光。
本申请通过使发光光源绕外壳体容纳空间内的投影贯穿空间设置，形成为环形光源，应用于基板对位标记(Mark)照相识别系统时，摄像头可以通过定位安装孔插设于投影贯穿空间中，这样发光光源分散在摄像头的周围，发光光源发出的光可以直接照射至基板上的Mark位置处，相较于现有技术，到达基板上Mark位置的光线增加，从而能够提高基板对位照相识别时的光照度， 以有利于提高摄像头基板对位的识别能力，达到提高对位精度的效果。
图3为本申请第一实施例所述光源装置与摄像头配合安装的侧面结构示意图。参阅图3，本实施例所述光源装置包括：外壳体10，形成有一用于容纳发光光源20的容纳空间，且外壳体10包括一透光面11，发光光源20所发出光能够通过该透光面11透出；此外在外壳体10上还设置有定位安装孔12。
本实施例中，外壳体10包括与透光面11相对的第一表面13，如图3所示，定位安装孔12形成为贯穿第一表面13和透光面11的结构。采用该种设置结构，在外壳体10的容纳空间的内部，沿定位安装孔12的轴线方向，定位安装孔12在透光面11和第一表面13之间延伸形成为一空间区域，也即上述的投影贯穿空间。较佳地，定位安装孔12设置于外壳体10的中心位置。
采用上述结构的光源装置，当安装于基板对位照相识别系统时，如图3所示，透光面11位于外壳体10的下表面，第一表面13位于外壳体10的上表面，基板对位照相识别系统的摄像头30可以从外壳体10的第一表面13朝透光面11的方向插入，并通过整个投影贯穿空间之后在透光面11露出，这样光源装置的整个外壳体10套设于摄像头30上，透光面11与待对位基板40相对，摄像头30位于待对位基板40上的Mark 41上方，用于采集Mark 41的图像，光源装置内的发光光源20环绕摄像头30设置，分别朝透光面11的设置方向发射光，这样发光光源20所发射的光可以透过透光面11之后直接照射至对位基板40的Mark 41处，且由于发光光源20环绕摄像头30设置，能够照射摄像头30的360度方向的位置，避免形成黑暗死角。该种结构的光源装置，由于发光光源发出的光可以直接照射至基板上的Mark位置处，相较于现有技术，所设置发光光源不会遮挡摄像头的取像区域，且到达基板上Mark位置的光线增加，能够提高基板对位照相识别时的光照度，以有利于提高摄像头基板对位的识别能力。
较佳地，在第一实施例中，如图3所示，透光面11与相对的第一表面13为相互平行，这样使光源装置形成为圆柱形式的盒体结构，如图6所示的立体示意图所示。
进一步地，较佳地，如图3所示，该光源装置还包括用于设置发光光源 20的光源安装板21，该光源安装板21呈弯曲弧形，弯曲弧形的圆心位于透光面11所设置的一侧，且发光光源20依据光源安装板21的弯曲弧度设置，采用该种弧形安装排列方式，使发光光源20所发出的光均朝向于基板40的Mark 41处，使光更加汇聚，大部分光能够照射至Mark 41处。此外，较佳地，光源安装板21朝向弯曲弧度的圆心的一侧面，也即设置发光光源20的侧面上设置有反射板24，贴附于光源安装板21的该侧面，这样依据光源安装板21的弯曲弧度设置，用于使发光光源20所发出光朝透光面11反射，进一步保证发光光源20所发出光照射至基板40的Mark 41处。
除上述设置方式外，也可以将外壳体10的容纳空间的内表面制成为弯曲弧形，将光源安装板21设置于容纳空间的内表面，依据容纳空间的内表面所形成弯曲弧形设置。或者进一步地，外壳体10内容纳空间的内表面直接形成弯曲弧形的光源安装板21，将发光光源20直接设置于外壳体10的容纳空间的内表面上。此外，较佳地，为了保证通过透光面11所透出传输至基板40的Mark 41处光的光强度更加均匀，在透光面11处还设置有一光扩散板。
参阅图4所示，本申请实施例中，所述发光光源20包括多列的LED灯25，均匀分布于摄像头30所设置投影贯穿空间的外围，且每一列的LED灯25沿垂直于定位安装孔12的轴线的方向，从靠近投影贯穿空间朝远离投影贯穿空间的方向排列，因此形成为如图4所示呈幅射状在定位安装孔12的外围排列的多列LED灯的发光光源，保证发光光源能够在摄像头30的外围均匀分布。
在上述第一实施例结构的光源装置的基础上，本申请还提供第二实施例的光源装置，该光源装置的侧面透视结构示意图如图5所示，与第一实施例相同，包括：外壳体10，形成有一用于容纳发光光源20的容纳空间，且外壳体10包括一透光面11，发光光源20所发出光能够通过该透光面11透出；此外在外壳体10上还设置有定位安装孔12。
在第二实施例中，与第一实施例不同，定位安装孔12设置于与透光面11所相对的第一表面13上，本申请中所提及的投影贯穿空间形成为沿定位安装孔12的轴线方向，由第一表面13的定位安装孔12延伸至透光面11的空间区域。如图5所示，采用该种设置结构，当安装于基板对位照相识别系 统时，基板对位照相识别系统的摄像头30可以从外壳体10的第一表面13朝透光面11的方向插入，但摄像头30的取像端不会穿过透光面11露出，而是位于外壳体10的内部，这样光源装置套设于摄像头30的取像端处。
在第二实施例中，透光面11与待对位基板40相对，摄像头30位于透光面11和待对位基板40上的Mark 41上方，用于透过透光面11采集Mark 41的图像。光源装置内的发光光源20环绕摄像头30设置，分别朝透光面11的设置方向发射光，这样发光光源20所发射的光可以透过透光面11之后直接照射至对位基板40的Mark 41处，且由于发光光源20环绕摄像头30设置，能够照射摄像头30的360度方向的位置，避免形成黑暗死角。因此，与第一实施例相同，第二实施例结构的光源装置，同样能够提高基板对位照相识别时的光照度，以有利于提高摄像头基板对位的识别能力。
当然，可以理解的是，由于采用第二实施例的光源装置，摄像头30需要透过透光面11取像，因此为保证取像的清晰度，第一实施例的光源装置为较佳的设置结构。
另外，与第一实施例相同，第二实施例中，所述光源装置还包括用于设置发光光源20的光源安装板21，呈弯曲弧形，且光源安装板20设置发光光源20的侧面贴附设置有反射板24；以及较佳地，透光面11处还设置有光扩散板。此外，发光光源20的设置方式也可以参阅图4所示与第一实施相同，在此不再一一赘述。
本申请具体实施例另一方面还提供一种对位标记照相识别系统，应用于显示装置制造中的基板对位，包括用于拍摄基板上对位标记位置的摄像头，还包括以上结构的光源装置，其中所述光源装置通过所述定位安装孔装设于所述摄像头上，所述摄像头透过所述投影贯穿空间和所述透光面拍摄获得对位标记位置。
该对位标记照相识别系统其中一实施例的立体结构可以参阅图6所示，具体包括：
摄像头30、用于调节所述摄像头30焦距的调节旋钮50和用于焦距对位的调节标尺51、光源装置10、支撑摄像头30的支撑架60，其中摄像头30穿设整个光源装置10的外壳体，通过光源装置10的透光面露出。透光面11 与待对位基板40相对，摄像头30位于待对位基板40上的Mark 41上方，用于采集Mark 41的图像，光源装置内的发光光源20环绕摄像头30设置，分别朝透光面11的设置方向发射光。
本申请所述对位标记照相识别系统中所述光源装置的具体结构可以参阅以上的结构描述，在此不再赘述。
采用本申请实施例所述光源装置的对位标记照相识别系统，能够保证摄像头基板对位的识别能力。
以上所述仅是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (15)

  1. 一种光源装置，包括：
    外壳体，形成一容纳空间，且所述外壳体包括一透光面，所述外壳体上还设置有一定位安装孔，沿所述定位安装孔的轴线方向，所述定位安装孔在所述容纳空间内形成一投影贯穿空间；
    多个发光光源，设置于所述容纳空间的内部，多个所述发光光源围绕所述投影贯穿空间设置，用于分别朝所述透光面的设置方向发射光。
  2. 如权利要求1所述的光源装置，其中，所述外壳体还包括与所述透光面相对的第一表面；所述定位安装孔设置于所述第一表面上，所述投影贯穿空间形成为沿所述定位安装孔的轴线方向，由所述第一表面的所述定位安装孔延伸至所述透光面的空间区域。
  3. 如权利要求1所述的光源装置，其中，所述外壳体还包括与所述透光面相对的第一表面，所述定位安装孔贯穿所述透光面和所述第一表面，所述投影贯穿空间形成为沿所述定位安装孔的轴线方向，所述定位安装孔在所述透光面和所述第一表面之间延伸的空间区域。
  4. 如权利要求2或3所述的光源装置，其中，所述透光面与所述第一表面相平行。
  5. 如权利要求1所述的光源装置，其中，所述光源装置还包括用于设置所述发光光源的光源安装板；所述光源安装板呈弯曲弧形，且所述光源安装板的圆心位于所述透光面所设置的一侧，所述发光光源依据所述光源安装板的弯曲弧度设置。
  6. 如权利要求5所述的光源装置，其中，所述容纳空间的内表面形成为弯曲弧形，所述光源安装板设置于所述容纳空间的内表面，依据所述容纳空间的内表面所形成的弯曲弧形设置。
  7. 如权利要求5所述的光源装置，其中，所述光源安装板朝向所述圆心的一侧面上设置有反射板；所述反射板依据所述光源安装板的弯曲弧度设置，用于使所述发光光源所发出光朝所述透光面反射。
  8. 如权利要求5所述的光源装置，其中，呈弯曲弧形的所述光源安装板 的弯曲曲率的圆心位于所述透光面远离所述发光光源的一侧。
  9. 如权利要求1所述的光源装置，其中，所述透光面上设置有用于使光均匀透过的光扩散板。
  10. 如权利要求1所述的光源装置，其中，所述发光光源包括多列的发光二极管(LED)灯，均匀分布于所述投影贯穿空间的外围，且每一列的LED灯沿垂直于所述定位安装孔的轴线的方向，从靠近所述投影贯穿空间朝远离所述投影贯穿空间的方向排列。
  11. 一种对位标记照相识别系统，包括用于拍摄基板上对位标记位置的摄像头，其中，还包括以上权利要求1至10任一项所述的光源装置，其中所述光源装置通过所述定位安装孔装设于所述摄像头上。
  12. 如权利要求11所述的对位标记照相识别系统，其中，所述对位标记照相识别系统还包括：用于调节所述摄像头焦距的调节旋钮和用于焦距对位的调节标尺。
  13. 如权利要求11所述的对位标记照相识别系统，其中，所述光源装置中的多个发光光源环绕所述摄像头设置。
  14. 如权利要求13所述的对位标记照相识别系统，其中，所述摄像头穿设在所述定位安装孔中，且所述摄像头的取像端位于所述光源装置的容纳空间的内部。
  15. 如权利要求13所述的对位标记照相识别系统，其中，所述摄像头穿设在所述定位安装孔中并贯穿所述光源装置，且所述摄像头的取像端位于所述光源装置的容纳空间的外部。
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