WO2023279446A1 - 一种双面同步扫描装置和同步式双面扫描仪 - Google Patents

一种双面同步扫描装置和同步式双面扫描仪 Download PDF

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Publication number
WO2023279446A1
WO2023279446A1 PCT/CN2021/108011 CN2021108011W WO2023279446A1 WO 2023279446 A1 WO2023279446 A1 WO 2023279446A1 CN 2021108011 W CN2021108011 W CN 2021108011W WO 2023279446 A1 WO2023279446 A1 WO 2023279446A1
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WIPO (PCT)
Prior art keywords
scanning
backlight
double
light
sided
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PCT/CN2021/108011
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English (en)
French (fr)
Inventor
武勇
周金旺
杨立镇
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安徽高哲信息技术有限公司
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Application filed by 安徽高哲信息技术有限公司 filed Critical 安徽高哲信息技术有限公司
Priority to US17/483,147 priority Critical patent/US11689678B2/en
Publication of WO2023279446A1 publication Critical patent/WO2023279446A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/203Simultaneous scanning of two or more separate pictures, e.g. two sides of the same sheet
    • H04N1/2032Simultaneous scanning of two or more separate pictures, e.g. two sides of the same sheet of two pictures corresponding to two sides of a single medium
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00795Reading arrangements
    • H04N1/00827Arrangements for reading an image from an unusual original, e.g. 3-dimensional objects

Definitions

  • the invention relates to the technical field of double-sided synchronous scanning devices, in particular to a double-sided synchronous scanning device and a synchronous double-sided scanner.
  • a double-sided scanner performs double-sided image scanning on a sample
  • the scanning head usually moves along a preset path, and the scanning work is completed during the moving process.
  • a backlight panel is usually provided for each scanner on the opposite side.
  • the scanners on both sides move synchronously, since the backlight is fixed as the background, on the one hand, the foreground scanning head will interfere with the backlight effect; , when the scanning head moves and scans relative to the backlight plate, the backlight of the image is uneven.
  • the present invention proposes a double-sided synchronous scanning device and a synchronous double-sided scanner.
  • a double-sided synchronous scanning device proposed by the present invention includes: two scanning components and two backlight panels;
  • a scanning channel is formed between the two scanning components, and the two scanning components are arranged in a staggered manner.
  • the backlight panel is used to backlight the relative scanning components.
  • the scanning component is provided with a light inlet on the side facing the scanning channel, and the side of the backlight plate facing the scanning channel is provided with a light guide groove corresponding to the light inlet of the corresponding scanning component, and the light guide groove There is a light source inside.
  • a reflective member is further provided in the light guide groove, and the reflective member is provided with an arc-shaped reflective surface facing the light inlet, and the light source is arranged facing the arc-shaped reflective surface.
  • the arc-shaped reflective surface is located on one side of the reflective member, and the light source is located on the side of the reflective member close to the arc-shaped reflective surface and installed on the side wall of the light guide groove.
  • the opening of the light guide groove is provided with a baffle extending horizontally from one side wall, and the baffle is located below the light source.
  • a supplementary light is arranged on the scanning assembly toward the direction of the backlight.
  • two supplementary light lamps are provided on the scanning assembly, and the two supplementary light lamps are respectively located on both sides of the light inlet and arranged in sequence along the direction away from the adjacent backlight panel.
  • the supplementary lights are arranged obliquely, and the distance between the two supplementary lights decreases gradually towards the direction away from the opposite backlight plate.
  • a scanning channel is formed between the two scanning components, and the two backlight panels are respectively used to provide backlight for the scanning component on the opposite side and are fixed with the scanning component on the same side, and the backlight panels face the scanning channel
  • One side is provided with a light guide groove corresponding to the light inlet of the corresponding scanning component, and the backlight source is arranged in the light guide groove; when the two scanning components work synchronously, since the backlight always needs to provide backlight, and the reflected light generated by the backlight plate on the scanning sample will enter the light inlet of the scanning component on the same side, affecting the image scanning effect.
  • the backlight light source will The outgoing light is limited to the area facing the light inlet of the opposite scanning component, so as to avoid the interference of the scattered light spilled from the side of the backlight plate to the scanning component on the same side, so as to realize simultaneous high-quality scanning of the two scanning components.
  • the present invention also proposes a synchronous double-sided scanner, including the above-mentioned double-sided synchronous scanning device.
  • it includes an upper scanning assembly, an upper backlight, a lower scanning assembly, a lower backlight, a housing and a driving mechanism;
  • the casing is provided with an upper slide rail and a lower slide rail arranged in parallel.
  • the upper scanning assembly and the lower scanning assembly can be slidably installed on the upper slide rail and the lower rail respectively.
  • the driving mechanism is used to drive the upper scanning assembly and the lower scanning assembly to slide synchronously.
  • the backlight board is fixed to the upper scanning assembly, and the lower backlight board is fixed to the lower scanning assembly.
  • it also includes a loading tray that can be put into the scanning channel, and a transparent loading area is provided in the middle of the loading tray;
  • the upper and lower sides of the loading tray are provided with an upper calibration part and a lower calibration part respectively for calibrating the upper scanning assembly and the lower scanning assembly, and the upper calibration part and the lower calibration part are located on the upper slide of the transparent loading area.
  • the proposed synchronous double-sided scanner has similar technical effects to the above-mentioned double-sided synchronous scanning device, so it will not be repeated here.
  • FIG. 1 is a schematic structural diagram of a double-sided synchronous scanning device proposed by the present invention.
  • FIG. 2 is a schematic structural diagram of an embodiment of a backlight panel of a double-sided synchronous scanning device proposed by the present invention.
  • FIG. 3 is a schematic structural diagram of another embodiment of a backlight panel of a double-sided synchronous scanning device proposed by the present invention.
  • FIG. 4 is a structural schematic diagram of a supplementary light of a double-sided synchronous scanning device proposed by the present invention.
  • FIG. 5 is a schematic diagram of the installation structure of a synchronous double-sided scanner proposed by the present invention.
  • FIG. 6 is a schematic diagram of the overall structure of a synchronous double-sided scanner proposed by the present invention.
  • Figure 1 is a schematic structural view of a double-sided synchronous scanning device proposed by the present invention
  • Figure 2 is a structure of an embodiment of a backlight panel of a double-sided synchronous scanning device proposed by the present invention
  • Schematic diagram FIG. 3 is a structural schematic diagram of another embodiment of the backlight of a double-sided synchronous scanning device proposed by the present invention
  • FIG. 4 is a structural schematic diagram of a supplementary light of a double-sided synchronous scanning device proposed by the present invention
  • FIG. 5 is a schematic diagram of the installation structure of a synchronous double-sided scanner proposed by the present invention
  • FIG. 6 is a schematic diagram of the overall structure of a synchronous double-sided scanner proposed by the present invention.
  • a double-sided synchronous scanning device proposed by the present invention includes two scanning components 1 and two backlight panels 2;
  • a scanning channel is formed between two scanning components 1, and the two scanning components 1 are arranged in a staggered manner.
  • Two backlight panels 2 are respectively located on both sides of the scanning channel and are fixedly arranged with the scanning component 1 on the same side. Each backlight panel 2 is used for The opposite side scanning assembly 1 provides backlighting.
  • the sample to be scanned is placed in the channel to be scanned, and the two backlight plates 2 are respectively located on the side of the sample to be scanned away from the corresponding scanning component 1, as the scanning area.
  • One side of the background forms a scanning area between each scanning assembly 1 and the corresponding backlight 2.
  • the two scanning assemblies 1 and the corresponding backlight 2 can be moved synchronously.
  • the two scanning areas pass through the surface of the sample sequentially, so as to obtain two scanning images, the upper and the lower.
  • the upper and lower scanning components and the corresponding backlight boards move synchronously. While the backlight board provides backlight for the relative scanning components, the light emitted by it is reflected by grain particles and will be acquired by the scanning components on the same side. The image is affected, resulting in inconsistencies in the background of the scanned image, which in turn affects the scanning quality and increases the difficulty of algorithm processing. Therefore, in actual use, the acquired images are scanned synchronously during the synchronous movement of the upper and lower scanning components, which brings great difficulties to the subsequent image processing.
  • the scanning assembly 1 is provided with a light inlet 11 facing the scanning channel side
  • the backlight panel 2 is provided with a light inlet 11 corresponding to the scanning assembly 1 facing the scanning channel side.
  • the light guide groove 21 is provided with a light source 22 .
  • the edge of the light guide groove 21 blocks the scattered light of the light periphery emitted by the light source 22, so that the light beam emitted from the light guide groove 21 is focused on the scanning surface.
  • the interference of scattered light on the scanning component 1 on the same side is avoided, and the scanning efficiency is improved while ensuring the quality of the scanned image .
  • a scanning channel is formed between two scanning components 1, and two backlight panels 2 are respectively used to provide backlight for the scanning component 1 on the opposite side and are fixed with the scanning component 1 on the same side.
  • the side of the backlight plate 2 facing the scanning channel is provided with a light guide groove 21 corresponding to the light inlet of the corresponding scanning assembly 1, and the backlight light source 22 is arranged in the light guide groove 21; when the two scanning assemblies 1 work synchronously , because the backlight plate 2 always needs to provide backlight for the opposite scanning assembly 1, and the reflected light generated by the backlight plate 2 on the scanning sample will enter the light inlet 11 of the scanning assembly 1 on the same side, affecting the image scanning effect.
  • a light guide groove 21 is arranged on the backlight plate 2, through which the outgoing light of the backlight light source 22 is limited to the area facing the light inlet 11 of the scanning assembly 1, thereby avoiding the backlight plate 2 from overflowing and scattering from the side
  • the light interferes with the scanning components 1 on the same side, so that the two scanning components 1 can simultaneously scan with high quality.
  • the light guide groove 21 is also provided with a reflective member 23, and the reflective member 23 is provided with an arc-shaped reflective surface facing the light inlet 11, and the light source 22 faces the arc-shaped reflective surface. Shape reflective surface setting.
  • the light emitted by the light source 22 first passes through the arc-shaped reflective surface of the reflector 23, and the beams entering at different incident angles are reflected by the arc-shaped reflective surface to form parallel beams, and then pass through the light guide groove 21, so as to form a parallel light beam towards the light inlet 11, while ensuring the backlight effect of the relative scanning component 1, and avoiding light interference to the scanning component 1 on the same side.
  • the arc-shaped reflective surface is located on the side of the reflective member 23, and the light source 22 is located on the side of the reflective member 23 close to the arc-shaped reflective surface and installed on the The side wall of the light guide groove 21; while improving the space utilization rate in the light guide groove 21, the light emitted from the light source is reflected by the arc reflective surface, and then emitted from the light guide groove 21 to avoid scattered light Out of the light guide groove 21 .
  • the opening of the light guide groove 21 is provided with a baffle 24 extending horizontally from one side wall, and the baffle 24 is located below the light source 22; the baffle 24 faces the light source from above. 22 for shielding, further preventing the scattered light of the light source 22 from emitting from the light guide groove 21.
  • the scanning component 1 is also provided with a supplementary light 3 arranged in the direction of the backlight 2.
  • a supplementary light 3 arranged in the direction of the backlight 2.
  • the scanning unit 1 Since the scanning unit 1 adopts a mobile scanning working mode, its scanning area is also relatively translated. Therefore, in order to fill in the light in real time in the scanning area, in the specific design method of the supplementary light 3, the scanning unit 1 is provided with two supplementary lights 3 , two fill light lamps 3 are respectively located on both sides of the light inlet 11 and arranged in sequence along the direction away from the adjacent backlight panel 2; the two fill light lamps fill the scanning area from both sides of the light inlet.
  • the supplementary light 3 is arranged obliquely, and the distance between the two supplementary lights 3 gradually decreases toward the direction away from the relative backlight 2; the supplementary light 3 is arranged obliquely, The emitted light of the two supplementary light lamps 3 is directed to the scanning area, so as to prevent the scattered light from interfering with the backlight area of the adjacent backlight panel.
  • the present invention also proposes a synchronous double-sided scanner, including the above-mentioned double-sided synchronous scanning device; specifically, including: an upper scanning assembly 20, an upper backlight plate 40, The lower scanning assembly 30, the lower backlight panel 50, the casing 10 and the driving mechanism;
  • the casing 10 is provided with an upper slide rail 20 and a lower slide rail 30 arranged in parallel, and the upper scanning assembly 20 and the lower scanning assembly 30 are slidably mounted on the upper slide rail 20 and the lower slide rail 30 respectively, and the driving mechanism is used to drive the upper scanning assembly 20 and the lower scanning assembly 30 slide synchronously, the upper backlight 40 is fixed to the upper scanning assembly 20 , and the lower backlight 50 is fixed to the lower scanning assembly 30 .
  • the housing 10 in order to facilitate the installation of the scanning assembly and the backlight board, it can be set as an upper and lower housing structure.
  • the sample to be scanned is placed in the scanning channel, the upper scanning assembly 20 and the upper backlight plate 40 are located on one side of the sample to be scanned, and the lower backlight plate 50 and the lower backlight plate
  • the scanning assembly 30 is located on the other side of the sample to be scanned, the upper scanning assembly 20 scans the upper surface of the sample, and the lower backlight plate 50 serves as the background of the upper scanning image.
  • the lower scanning assembly 30 scans the lower surface of the sample
  • the upper backlight plate 40 serves as the lower scanning The background of the image; when scanning, the driving mechanism drives the upper scanning assembly 20 and the lower scanning assembly 30 to slide synchronously along the upper and lower slide rails, and at the same time, the upper scanning assembly 20 cooperates with the lower backlight plate 50 to scan the image on the upper surface of the sample, and the lower scanning assembly 30 and the upper scanning assembly
  • the backlight plate 40 cooperates with scanning the image of the lower surface of the sample, so as to complete the scanning of images on both sides of the sample synchronously.
  • the synchronous double-sided scanner of this embodiment also includes a loading tray 60 that can be placed in the scanning channel, and a transparent loading area is provided in the middle of the loading tray 60 .
  • the balance calibration bar for scanner initialization is directly set on the scanner shell on the opposite side, which results in a relatively large thickness of the scanner, reduces the placement space of the loading tray, and further limits the size range of detectable samples. Therefore, in the specific design of the loading tray, the upper and lower sides of the loading tray 60 are provided with an upper calibration part and a lower calibration part for calibrating the upper scanning assembly 20 and the lower scanning assembly 30 respectively, and the upper calibration part and the lower The calibration part is located on the same side of the transparent loading area along the extending direction of the upper slide rail 101 .
  • the upper scanning assembly 20 and the lower scanning assembly 30 are initially located on the side of the transparent loading area close to the upper and lower calibration parts, and the upper and lower scanning components are respectively initialized for color balance through the upper calibration part and the lower calibration part, and then respectively Obtain images of the upper and lower surfaces of grain particles through the upper and lower scanning components.
  • the present embodiment also includes a balance calibration bar 9, and the loading tray 60 has a first installation opening and a second installation opening, and a transparent supporting plate is provided at the first installation opening, The transparent carrier plate forms the transparent loading area at the first installation opening, the second installation opening is located on one side of the first installation opening along the direction of extending the upper and lower slide rails, and the balance calibration bar 9 is installed on the The second installation opening is described above; by setting a balance calibration bar 9, the two sides of the balance calibration bar are respectively used as the initialization calibration areas of the scanners on both sides to play the role of positioning and color balance, and the initialization of the scanners on both sides can be realized. Calibration to facilitate the setting of two initial calibration areas.
  • the balance calibration bar can be a white balance calibration bar.

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

本申请公开了一种双面同步扫描装置,两个扫描组件之间形成扫描通道,两个背光板分别用于为对侧扫描组件提供背光并且与同侧扫描组件固定,背光板朝向扫描通道一侧设有与相应扫描组件的进光口对应的导光凹槽,背光光源设置在所述导光凹槽内;两个扫描组件同步工作时,由于背光板始终需要为对向扫描组件提供背光,而背光板在扫描样品上产生的反射光会进入同侧扫描组件的进光口内,影响图像扫描效果,因此,通过在背光板上设置导光凹槽,通过导光凹槽将背光光源的出射光限制在朝向对向扫描组件的进光口的区域,从而避免背光板侧向溢出散射光对同侧扫描组件进行干扰,进而能够实现两个扫描组件同步高质量扫描。

Description

一种双面同步扫描装置和同步式双面扫描仪 技术领域
本发明涉及双面同步扫描装置技术领域,尤其涉及一种双面同步扫描装置和同步式双面扫描仪。
背景技术
目前,双面扫描仪对样本进行双面图像扫描时,通常通过扫描头沿预设路径移动,在移动过程中完成扫描工作。为了保证扫描效果,通常会在对侧为每个扫描仪设置背光板。然而,当两侧扫描仪同步移动时,由于背光板作为背景固定,一方面,前景扫描头对背光效果造成干扰,另一方面,由于背光板距离对侧扫描头距离较远,造成光源亮度不足,扫描头相对于背光板移动扫描时,造成图像背光不均匀。
发明内容
为解决背景技术中存在的技术问题,本发明提出一种双面同步扫描装置和同步式双面扫描仪。
本发明提出的一种双面同步扫描装置,包括:两个扫描组件、两个背光板;
两个扫描组件之间形成扫描通道,两个扫描组件错开布置,两个背光板分别位于所述扫描通道两侧且与同侧扫描组件固定设置,两个扫描组件沿移动方向错开布置,每个背光板用于为相对扫描组件提供背光。
优选地,扫描组件朝向所述扫描通道一侧设有进光口,背光板朝向所述扫描通道一侧设有与相应扫描组件的进光口对应的导光凹槽,所述导光凹槽内设有光源。
优选地,所述导光凹槽内还设有反光件,反光件上设有朝向所述进光口设置的弧形反光面,光源朝向所述弧形反光面设置。
优选地,所述弧形反光面位于反光件一侧,光源位于反光件靠近所述弧 形反光面一侧且安装在所述导光凹槽的侧壁。
优选地,所述导光凹槽开口处设有从一侧侧壁水平伸出的挡板,挡板在光源位于挡板下方。
优选地,扫描组件上还设有朝向背光板方向布置设置补光灯。
优选地,扫描组件上设有两个补光灯,两个补光灯分别位于所述进光口两侧且沿远离相邻背光板方向依次布置。
优选地,补光灯倾斜布置,两个补光灯之间的间距向远离相对背光板方向逐渐减小。
本发明中,所提出的双面同步扫描装置,两个扫描组件之间形成扫描通道,两个背光板分别用于为对侧扫描组件提供背光并且与同侧扫描组件固定,背光板朝向扫描通道一侧设有与相应扫描组件的进光口对应的导光凹槽,背光光源设置在所述导光凹槽内;两个扫描组件同步工作时,由于背光板始终需要为对向扫描组件提供背光,而背光板在扫描样品上产生的反射光会进入同侧扫描组件的进光口内,影响图像扫描效果,因此,通过在背光板上设置导光凹槽,通过导光凹槽将背光光源的出射光限制在朝向对向扫描组件的进光口的区域,从而避免背光板侧向溢出散射光对同侧扫描组件进行干扰,进而能够实现两个扫描组件同步高质量扫描。
本发明还提出一种同步式双面扫描仪,包括上述的双面同步扫描装置。
优选地,包括上扫描组件、上背光板、下扫描组件、下背光板、壳体和驱动机构;
壳体内设有平行布置的上滑轨和下滑轨,上扫描组件和下扫描组件分别可滑动安装在上滑轨和下滑轨上,驱动机构用于驱动上扫描组件和下扫描组件同步滑动,上背光板与上扫描组件固定,下背光板与下扫描组件固定。
优选地,还包括可放入所述扫描通道的载物托盘,载物托盘中部设有透明载物区域;
优选地,载物托盘上下两侧设有分别用于对上扫描组件和下扫描组件进行校准的上校准部和下校准部,上校准部和下校准部位于所述透明载物区域沿上滑轨延伸方向的同一侧。
本发明中,所提出的同步式双面扫描仪,其技术效果与上述双面同步扫 描装置类似,因此不再赘述。
附图说明
图1为本发明提出的一种双面同步扫描装置的结构示意图。
图2为本发明提出的一种双面同步扫描装置的背光板的一种实施方式的结构示意图。
图3为本发明提出的一种双面同步扫描装置的背光板的另一种实施方式的结构示意图。
图4为本发明提出的一种双面同步扫描装置的补光灯的结构示意图。
图5为本发明提出的一种同步式双面扫描仪的安装结构示意图。
图6为本发明提出的一种同步式双面扫描仪的整体结构示意图。
附图标号说明:
1.扫描组件;2.背光板;3.补光灯;9.平衡校准条;10.壳体;11.进光口;20.上扫描组件;21.导光凹槽;22.光源;23.反光件;24.挡板;30.下扫描组件;40.上背光板;50.下背光板;60.载物托盘;101.上滑轨;102.下滑轨。
具体实施方式
如图1至6所示,图1为本发明提出的一种双面同步扫描装置的结构示意图,图2为本发明提出的一种双面同步扫描装置的背光板的一种实施方式的结构示意图,图3为本发明提出的一种双面同步扫描装置的背光板的另一种实施方式的结构示意图,图4为本发明提出的一种双面同步扫描装置的补光灯的结构示意图,图5为本发明提出的一种同步式双面扫描仪的安装结构示意图,图6为本发明提出的一种同步式双面扫描仪的整体结构示意图。
在粮食颗粒检测领域,需要获取粮食颗粒上下表面扫描图像,并且将待扫描粮食颗粒放入上下扫描组件之间。由于检测需要,通常给每个扫描组件设置相应的背光板,一方面保证扫描后的图像背景统一,减小后续图像处理的算法难度,另一方面,背光板从背面对扫描区域进行补光,提高扫描图像效果。
参照图1和2,本发明提出的一种双面同步扫描装置,两个扫描组件1、两个背光板2;
两个扫描组件1之间形成扫描通道,两个扫描组件1错开布置,两个背光板2分别位于所述扫描通道两侧且与同侧扫描组件1固定设置,每个背光板2用于为相对侧扫描组件1提供背光。
本实施例的双面同步扫描装置的具体工作过程中,首先,将待扫描样品放在待扫描通道内,两个背光板2分别位于待扫描样本远离相应扫描组件1一侧,作为扫描区域的一侧背底,在每个扫描组件1和相应背光板2之间形成扫描区域,扫描时,为了减少驱动机构的设置,提高扫描效率,可同步移动两个扫描组件1和相应背光板2,使得两个扫描区域依次经过样品表面,从而获取上下两个扫描图像。
进一步地,在驱动上下扫描组件同步移动过程中,上下扫描组件和相应背光板同步移动,背光板为相对扫描组件提供背光的同时,其发出的光经粮食颗粒反射,会对同侧扫描组件获取图像造成影响,导致扫描后的图像背景出现背景不统一,进而影响扫描质量,增加算法处理的难度。因此,实际使用时,通过上下扫描组件同步移动过程中同步扫描所获取的图像,为后续图像处理带来较大困难。
为了解决上述问题,在具体设计方式中,扫描组件1朝向所述扫描通道一侧设有进光口11,背光板2朝向所述扫描通道一侧设有与相应扫描组件1的进光口11对应的导光凹槽21,所述导光凹槽21内设有光源22。
在扫描过程中,由于背光光源22位于导光凹槽21内,导光凹槽21的边缘将光源22发出的光外周的散射光阻隔,从而从导光凹槽21出射出的光束聚焦在扫描组件1的进光口11处,进而在两组背光板2随扫描组件1同步移动扫描的过程中,避免散射光对同侧扫描组件1的干扰,提高扫描效率的同时,保证扫描图像的质量。
在本实施例中,所提出的双面同步扫描装置,两个扫描组件1之间形成扫描通道,两个背光板2分别用于为对侧扫描组件1提供背光并且与同侧扫描组件1固定,背光板2朝向扫描通道一侧设有与相应扫描组件1的进光口对应的导光凹槽21,背光光源22设置在所述导光凹槽21内;两个扫描组件1同步工作时,由于背光板2始终需要为对向扫描组件1提供背光,而背光板2在扫描样品上产生的反射光会进入同侧扫描组件1的进光口11内,影响图 像扫描效果,因此,通过在背光板2上设置导光凹槽21,通过导光凹槽21将背光光源22的出射光限制在朝向对向扫描组件1的进光口11的区域,从而避免背光板2侧向溢出散射光对同侧扫描组件1进行干扰,进而能够实现两个扫描组件1同步高质量扫描。
参照图3,由于光源22发出的光具有多个方向,使得从导光凹槽21出射后,仍旧存在一定量的散射光,对相邻扫描组件1造成干扰的同时,照射在扫描区域的光强不均匀,进而影响扫描效果。因此,在进一步具体设计方式中,所述导光凹槽21内还设有反光件23,反光件23上设有朝向所述进光口11设置的弧形反光面,光源22朝向所述弧形反光面设置。在背光板工作过程中,光源22出射的光首先经过反光件23的弧形反光面,不同入射角进入的光束经所述弧形反光面的反射,形成平行光束后,再经过导光凹槽21出口的限制,从而形成朝向进光口11的平行光束,保证相对扫描组件1的背光效果的同时,避免对同侧扫描组件1的光干扰。
在光源22和反光件23在导光凹槽21内具体设置方式中,所述弧形反光面位于反光件23一侧,光源22位于反光件23靠近所述弧形反光面一侧且安装在所述导光凹槽21的侧壁;提高导光凹槽21内的空间利用率的同时,使得光源出射光经过弧形反光面反射后,再从导光凹槽21内射出,避免散射光射出导光凹槽21。
在进一步具体设计方式中,所述导光凹槽21开口处设有从一侧侧壁水平伸出的挡板24,挡板24在光源22位于挡板24下方;挡板24从上方对光源22进行遮挡,进一步避免光源22的散射光从导光凹槽21射出。
在粮食颗粒扫描过程中,为了保证正面扫描效果,在扫描组件1的其他具体设计方式中,扫描组件1上还设有朝向背光板2方向布置设置补光灯3,扫描时,通过补光灯3为扫描区域正面补光,保证扫描图像质量。
由于扫描组件1采用移动扫描工作方式,其扫描区域也是相对平移的,因此,为了扫描区域实时补光,在补光灯3的具体设计方式中,扫描组件1上设有两个补光灯3,两个补光灯3分别位于所述进光口11两侧且沿远离相邻背光板2方向依次布置;两个补光灯从进光口两侧为扫描区域补光。
参照图4,在补光灯3的具体设计方式中,补光灯3倾斜布置,两个补光 灯3之间的间距向远离相对背光板2方向逐渐减小;补光灯3倾斜设置,使得两个补光灯3的出射光均朝向扫描区域,避免散射光对相邻背光板的背光区域造成干扰。
参照图5和6,在另一实施例中,本发明还提出一种同步式双面扫描仪,包括上述的双面同步扫描装置;具体地,包括:上扫描组件20、上背光板40、下扫描组件30、下背光板50、壳体10和驱动机构;
壳体10内设有平行布置的上滑轨20和下滑轨30,上扫描组件20和下扫描组件30分别可滑动安装在上滑轨20和下滑轨30上,驱动机构用于驱动上扫描组件20和下扫描组件30同步滑动,上背光板40与上扫描组件20固定,下背光板50与下扫描组件30固定。
在壳体10的具体设计中,为了便于扫描组件和背光板的安装,可设置为上下壳体结构。
本实施例的同步式双面扫描仪在具体工作过程中,首先,将待扫描样品放在扫描通道内,上扫描组件20和上背光板40位于待扫描样本一侧,下背光板50和下扫描组件30位于待扫描样本另一侧,上扫描组件20扫描样品上表面,下背光板50作为上扫描图像的背底,同样,下扫描组件30扫描样品下表面,上背光板40作为下扫描图像的背底;扫描时,驱动机构驱动上扫描组件20和下扫描组件30沿上下滑轨同步滑动,同时上扫描组件20与下背光板50配合扫描样品上表面图像,下扫描组件30与上背光板40配合扫描样品下表面图像,从而同步完成对样品两侧图像的扫描。
为了便于待扫描样品的放入和取出,本实施例的同步式双面扫描仪还包括可放入所述扫描通道的载物托盘60,载物托盘60中部设有透明载物区域。
为了便于后续上下图像的处理,需要在扫描之前对上下扫描组件进行校准。通常,扫描仪初始化的平衡校准条被直接设置在相对侧的扫描仪壳上,这导致扫描仪的厚度偏大,减小了载物托盘的放置空间,进而限制了可检测样品的尺寸范围。因此,在载物托盘的具体设计方式中,载物托盘60上下两侧设有分别用于对上扫描组件20和下扫描组件30进行校准的上校准部和下校准部,上校准部和下校准部位于所述透明载物区域沿上滑轨101延伸方向的同一侧。在扫描之前,上扫描组件20和下扫描组件30初始状态下位于所 述透明载物区域靠近上下校准部一侧,通过上校准部和下校准部分别对上下扫描组件进行色彩平衡初始化,然后分别通过上下扫描组件获取粮食颗粒上下表面图像。
在扫描校准区的具体设置方式中,在本实施例还包括平衡校准条9,载物托盘60上具有第一安装开口和第二安装开口,所述第一安装开口处设有透明托板,透明托板在所述第一安装开口处形成所述透明载物区域,所述第二安装开口位于所述第一安装开口沿上下滑轨延伸方向上的一侧,平衡校准条9安装在所述第二安装开口处;通过设置一个平衡校准条9,将平衡校准条两侧分别作为两侧扫描仪的初始化校准区域,起到定位和色彩平衡作用的,即可实现双侧扫描仪的初始化校准,便于两个初始化校准区的设置。优选地,平衡校准条可以采用白平衡校准条。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种双面同步扫描装置,其特征在于,包括:两个扫描组件(1)、两个背光板(2);
    两个扫描组件(1)之间形成扫描通道,两个扫描组件(1)错开布置,两个背光板(2)分别位于所述扫描通道两侧且与同侧扫描组件(1)固定设置,每个背光板(2)用于为相对侧扫描组件(1)提供背光。
  2. 根据权利要求1所述的双面同步扫描装置,其特征在于,扫描组件(1)朝向所述扫描通道一侧设有进光口(11),背光板(2)朝向所述扫描通道一侧设有与相应扫描组件(1)的进光口(11)对应的导光凹槽(21),所述导光凹槽(21)内设有光源(22)。
  3. 根据权利要求2所述的双面同步扫描装置,其特征在于,所述导光凹槽(21)内还设有反光件(23),反光件(23)上设有朝向所述进光口(11)设置的弧形反光面,光源(22)朝向所述弧形反光面设置。
  4. 根据权利要求3所述的双面同步扫描装置,其特征在于,所述弧形反光面位于反光件(23)一侧,光源(22)位于反光件(23)靠近所述弧形反光面一侧且安装在所述导光凹槽(21)的侧壁。
  5. 根据权利要求4所述的双面同步扫描装置,其特征在于,所述导光凹槽(21)开口处设有从一侧侧壁水平伸出的挡板(24),挡板(24)在光源(22)位于挡板(24)下方。
  6. 根据权利要求2所述的双面同步扫描装置,其特征在于,扫描组件(1)上还设有朝向背光板(2)方向布置设置补光灯(3)。
  7. 根据权利要求6所述的双面同步扫描装置,其特征在于,扫描组件(1)上设有两个补光灯(3),两个补光灯(3)分别位于所述进光口(11)两侧且沿远离相邻背光板(2)方向依次布置。
  8. 根据权利要求7所述的双面同步扫描装置,其特征在于,补光灯(3)倾斜布置,两个补光灯(3)之间的间距向远离相对背光板(2)方向逐渐减小。
  9. 一种同步式双面扫描仪,其特征在于,包括根据权利要求1-8任一项所述的双面同步扫描装置;
    包括上扫描组件(20)、上背光板(40)、下扫描组件(30)、下背光 板(50)、壳体(10)和驱动机构;
    壳体(10)内设有平行布置的上滑轨(101)和下滑轨(102),上扫描组件(20)和下扫描组件(30)分别可滑动安装在上滑轨(101)和下滑轨(102)上,驱动机构用于驱动上扫描组件(20)和下扫描组件(30)同步滑动,上背光板(40)与上扫描组件(20)固定,下背光板(50)与下扫描组件(30)固定。
  10. 根据权利要求9所述的同步式双面扫描仪,其特征在于,还包括可放入所述扫描通道的载物托盘(60),载物托盘(60)中部设有透明载物区域;
    载物托盘(60)上下两侧设有分别用于对上扫描组件(20)和下扫描组件(30)进行校准的上校准部和下校准部,上校准部和下校准部位于所述透明载物区域沿上滑轨(101)延伸方向的同一侧。
PCT/CN2021/108011 2021-07-06 2021-07-22 一种双面同步扫描装置和同步式双面扫描仪 WO2023279446A1 (zh)

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