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WO2022211291A1 - Dispositif et procédé d'inspection d'emballage de lentilles de contact - Google Patents

Dispositif et procédé d'inspection d'emballage de lentilles de contact Download PDF

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Publication number
WO2022211291A1
WO2022211291A1 PCT/KR2022/002916 KR2022002916W WO2022211291A1 WO 2022211291 A1 WO2022211291 A1 WO 2022211291A1 KR 2022002916 W KR2022002916 W KR 2022002916W WO 2022211291 A1 WO2022211291 A1 WO 2022211291A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact lens
storage container
lens package
image
ultraviolet
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/KR2022/002916
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English (en)
Korean (ko)
Inventor
김선호
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2022211291A1 publication Critical patent/WO2022211291A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • 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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958—Inspecting transparent materials or objects, e.g. windscreens

Definitions

  • Embodiments relate to contact lens package inspection apparatus and inspection method.
  • contact lenses are manufactured by injecting monomers into a contact lens mold and polymerizing them. After the contact lens composition is injected into the concave surface of the female mold, the male mold is coupled from the top and then left for a predetermined time or subjected to a heat curing process to form a contact lens.
  • the manufactured contact lenses are loaded into storage containers (trays, holders, etc.), and the cleaning process and vision inspection are performed. After vision inspection, saline is put into the storage container, sealed, and shipped after visual and microscopic inspection.
  • An object of the embodiment is to provide an inspection apparatus with improved detection reliability and detection speed even in a contact lens package sealed in a storage container or the like.
  • An object of the embodiment is to provide an inspection device capable of effectively detecting defects in a storage container in which a contact lens is sealed.
  • An ultraviolet ray unit irradiating ultraviolet rays toward the storage container
  • a detection unit for obtaining an image for reading from the ultraviolet light that has passed through the storage container
  • a device for inspecting a contact lens package including one or more storage containers, including; a control unit for determining whether the storage container accommodates the contact lens through the reading image
  • the storage container includes a receiving portion having an open upper portion and a sealing portion covering the upper portion of the receiving portion, wherein the receiving portion accommodates at least one contact lens,
  • the ultraviolet part irradiates the ultraviolet rays at an incident angle of 0.1 ° to 80 ° with respect to a surface parallel to one surface of the sealing part.
  • the contact lens is a transparent lens
  • the control unit may determine whether the contact lens is accommodated in a fixed amount in the storage container.
  • the storage container includes a plurality of the receiving portion
  • the plurality of accommodation units may accommodate one or two or more contact lenses, respectively.
  • the accommodating part includes a concave recessed part for accommodating the contact lens and a rim part extending the edge of the recessed part,
  • the sealing part may be attached to the edge part while covering the upper surface of the accommodating part with a plastic film including a metal thin film.
  • the accommodating part includes a light-transmitting plastic in part or all of it,
  • the depression receives a storage solution containing saline together with the contact lens
  • One or two or more of the ultraviolet rays selected from the wavelength range of 100 nm to 440 nm may be applied.
  • control unit may determine whether the contact lens package is defective according to the brightness of the image for reading.
  • the second detector may acquire a visible light image of the contact lens.
  • it may further include a conveyor for moving the storage container.
  • the ultraviolet ray unit and the detection unit include a first rail member and a second rail member, respectively,
  • the first rail member and the second rail member may be engaged with the first rail and the second rail, respectively, to move parallel to the moving direction of the storage container.
  • control unit may further include a display for displaying whether the contact lens is defective.
  • An irradiation step of irradiating ultraviolet rays toward the storage container An irradiation step of irradiating ultraviolet rays toward the storage container;
  • the storage container includes a receiving portion having an open upper portion and a sealing portion covering the upper portion of the receiving portion, wherein the receiving portion accommodates at least one contact lens,
  • the irradiation step irradiates ultraviolet rays at an incident angle of 0.1 ° to 80 ° with respect to a plane parallel to the surface on which the storage container is placed.
  • the contact lens package inspection apparatus it is possible to more accurately determine whether the sealed contact lens is defective. In addition, it is possible to quickly select defective products to reduce the lead time until product shipment, and to contribute to product productivity improvement.
  • FIG. 1 is a conceptual diagram showing an example of a contact lens package inspection apparatus according to an embodiment.
  • FIG. 2 is a conceptual diagram illustrating an example of a region in which an ultraviolet part and a detection part are located in the contact lens package inspection apparatus according to the embodiment
  • FIG. 3 is a conceptual diagram illustrating another example of an area in which an ultraviolet unit and a detection unit are located in the contact lens package inspection apparatus according to the embodiment;
  • FIG. 4 is a photograph showing an example of an image for reading taken according to the contact lens package inspection apparatus according to the embodiment.
  • B is positioned on A means that B is positioned so that it directly abuts on A or that B is positioned on A while another layer is positioned in between, and B is positioned so that it abuts on the surface of A It is not construed as being limited to
  • the term “combination of these” included in the expression of the Markush form means one or more mixtures or combinations selected from the group consisting of the components described in the expression of the Markush form, and the components It means to include one or more selected from the group consisting of.
  • the contact lens package inspection apparatus 100 according to the embodiment,
  • Ultraviolet unit 21 for irradiating ultraviolet rays toward the storage container 11;
  • a detection unit 22 which acquires an image for reading from the ultraviolet light that has passed through the storage container
  • a device for examining a contact lens package including one or more storage containers, including;
  • the storage container includes a receptacle (12) having an open top and a seal covering the upper portion of the receptacle, the receptacle receiving at least one or more contact lenses (13);
  • the ultraviolet part irradiates ultraviolet rays at an incident angle of 0.1 ° to 80 ° with respect to a plane parallel to the surface on which the storage container is placed.
  • the present inventors recognize this problem, and in order to more accurately determine whether the contact lens sealed in the storage container is received or not, factors for determining whether the defect is defective, such as utilizing an image obtained by irradiating ultraviolet rays at a specific angle composed.
  • the ultraviolet part 21 irradiates ultraviolet rays at a predetermined incident angle with respect to the surface parallel to the surface on which the storage container is placed toward the storage container.
  • the ultraviolet wavelength of the ultraviolet part 21 may be 100 nm to 440 nm, 320 nm to 400 nm, and 350 nm to 400 nm. In such a wavelength range, it is possible to more reliably determine good quality and defective contact lenses.
  • the ultraviolet part 21 may include a lighting module emitting ultraviolet light and a tilting member for adjusting an angle of the lighting module. UV rays can be irradiated at a predetermined angle toward the storage container 11 through the tilting member. In addition, it may further include a height adjustment member for adjusting the height of the lighting module.
  • the ultraviolet unit 21 may form a detection region that is a path through which ultraviolet rays are irradiated, and may further include a recognition unit for recognizing the presence or absence of the storage container 11 in the detection region.
  • the ultraviolet part 21 may irradiate ultraviolet rays when the storage container 11 is present in the detection area.
  • the detection area may include a receiving part and a sealing part of the storage container.
  • the UV unit 21 may include a plurality of the illumination modules, and each illumination module may have a different UV wavelength.
  • the illumination module may include a first illumination module and a second illumination module, the first illumination module may irradiate ultraviolet rays of a wavelength of 300 nm to 330 nm, and the second illumination module may include Ultraviolet rays having a wavelength of 350 nm to 400 nm may be irradiated.
  • the ultraviolet part 21 may irradiate ultraviolet rays at an incident angle of 0.1 ° to 80 ° based on a plane parallel to the surface on which the storage container 11 is placed, and to irradiate ultraviolet rays at an incident angle of 10 ° to 70 °. and can be irradiated with ultraviolet rays at an incident angle of 30 ° to 45 °. When this angle of incidence is satisfied, it is possible to more reliably determine good quality and defective contact lenses. If the incident angle is out of the above range, it may be difficult to identify and interpret the brightness of the reading image formed by the detection unit 22 to be described later.
  • the storage container 11 may include 2 to 10 accommodating parts 12 , and the plurality of accommodating parts may accommodate one or two or more contact lenses 13 , respectively.
  • the storage container 11 may be a tray in which the plurality of accommodating parts 12 may be arranged in a line, and having accommodating parts composed of a plurality of rows and columns.
  • the contact lens 13 sealed in the receiving part 12 of the storage container 11 may be a transparent lens or may be colorless.
  • the accommodating part 12 of the storage container 11 may include a recessed part having a concave shape for accommodating the contact lens 13 and a rim part extending from the edge of the recessed part.
  • the edge portion may be a protruding edge of the recessed portion and may be extended.
  • the sealing part of the storage container 11 may be attached to the edge part while covering the upper surface of the accommodating part 12 with a plastic film including a metal thin film.
  • the accommodating part of the storage container 11 may include a part or all of the light-transmitting plastic, and the recessed part may accommodate a storage solution containing saline together with the contact lens.
  • the detection unit 22 forms an image for reading with the ultraviolet light irradiated from the ultraviolet unit 21 toward the storage container 11 and transmitted.
  • the detection unit 22 may include an ultraviolet camera.
  • the ultraviolet camera may include a lens unit and a sensor unit.
  • the lens unit and the sensor unit may be disposed on the transmitted UV path to form an image for reading UV transmitted from the storage container 11 .
  • the lens unit may further include an ultraviolet filter disposed on the transmitted ultraviolet path.
  • the sensor unit may convert the ultraviolet light transmitted from the storage container 11 into a digital signal to form a color or black-and-white image.
  • the image for reading formed by the sensor unit may be an image whose brightness varies according to the degree to which ultraviolet rays are transmitted through the storage container. If the degree of transmission is strong, the pixel area of the image for reading may be displayed brightly, and if it is not transmitted or weak, the pixel area may be displayed as dark. If the contact lens is present in the storage container, the UV light may not be absorbed or transmitted due to the material contained in the contact lens, and in this case, the pixel area is displayed as dark. In the absence of contact lenses in the storage container, most of the UV light is transmitted, and in this case the pixel area is displayed brightly.
  • FIG. 4 is an example of an image for reading according to an embodiment. Referring to FIG. 4 , whether a contact lens is included in each of the plurality of accommodating portions of the storage container can be checked through pixel brightness comparison, and defectiveness can be determined by comparing with a reference ultraviolet image to be described later.
  • the sensor unit may generate one image for reading, may continuously generate images at a preset frame rate, or may form a moving picture.
  • the detection unit 22 and the ultraviolet unit 21 may maintain an appropriate distance from the storage container 11, respectively, and the distance from the storage container may be 10 cm to 100 cm. By maintaining this distance, it is possible to obtain clearer image results for reading.
  • the ultraviolet part 21 may further include a first rail member 25 , and may move through the first rail 24 engaged with the first rail member.
  • the first rail member may be located at a lower end of the ultraviolet part.
  • the ultraviolet part may move parallel to the moving direction of the storage container 11 through the first rail member and the first rail.
  • the detection unit 22 may further include a second rail member 27 , and may move through a second rail 26 engaged with the second rail member.
  • the second rail member may be located at a lower end of the detection unit.
  • the detection unit may move parallel to the moving direction of the storage container 11 through the second rail member and the second rail.
  • the control unit 31 may determine whether the contact lens package is defective according to the brightness of the reading image obtained through the detection unit 22 .
  • the control unit 31 compares the reading image obtained through the detection unit 22 with reference ultraviolet image information, and if the brightness of the receptacle photographed in the reading image is within a set range, it is determined as normal, and out of the range In some cases, it can be judged as defective. If it is difficult to determine whether it is normal or defective, it can be judged as a target for re-examination.
  • the control unit 31 determines whether the contact lens 13 is quantitatively accommodated in the storage container 11 through the reading image.
  • the control unit 31 may set reference UV image information as a reference for determining whether the contact lens is received in a fixed amount.
  • second reference ultraviolet image information which is a standard for determining whether the contact lens is a good quality, may be set.
  • the control unit 31 may include an image for reading obtained through the detection unit 22 and a display 32 for visually confirming whether it is normal or not.
  • the comparison between the reference ultraviolet image information and the image for reading obtained through the detection unit and whether or not there is a defect may be output on the display.
  • the storage container 11 may be moved along the moving means 23 , and as it is moved, it reaches the detection area irradiated by the ultraviolet unit 21 , and an image for reading may be obtained through the detection unit 22 . .
  • the storage container may reach the detection area of the second detection unit and the selection area of the selection member, which will be described later, while being moved along the moving means.
  • the moving means 23 may be a conveyor.
  • the moving direction of the moving means may be a direction perpendicular to a direction in which the ultraviolet part 21 and the detection part 22 face each other.
  • the contact lens package inspection apparatus 100 may further include a second detection unit 41 at the front or rear end of the detection unit 22 , and the second detection unit obtains a visible light image of the storage container 11 . .
  • the control unit 31 may read the visible light image obtained by the second detection unit to determine whether the packaging state of the storage container is defective.
  • the second detection unit 41 may compare the visible light image of the storage container 11 with reference visible light image information, and may determine that it is normal if it is within a set range, and may determine that it is defective if it is out of the range. If it is difficult to determine whether it is normal or defective, it can be judged as a target for re-examination.
  • the second detection unit 41 may be disposed in a direction from the upper portion of the storage container 11 toward the storage container, and may further include a second height adjusting member for adjusting the height of the second detection unit.
  • the second detection unit may adjust an appropriate height according to the storage container.
  • the contact lens package inspection apparatus 100 may further include a separate screening member at the rear end of the detection unit 22 .
  • the sorting member can sort within the sorting area for the storage container 11 including the contact lens 13 judged to be defective by the control unit 31 through the ultraviolet image obtained from the detection part, and the selected storage container is It may be loaded in the sorting container 61 or the like.
  • the contact lens package inspection apparatus 100 it is possible to reliably determine the presence or absence of defects in the sealed contact lenses, and to quickly select defective products to reduce the lead time until shipment, and to contribute to the improvement of product productivity have.
  • the storage container includes a receiving portion having an open upper portion and a sealing portion covering the upper portion of the receiving portion, wherein the receiving portion accommodates at least one contact lens,
  • ultraviolet rays may be irradiated at an incident angle of 0.1 ° to 80 ° with respect to a surface parallel to the surface on which the storage container is placed.
  • the storage container 11 of the irradiation step may be the same as the storage container described above.
  • the ultraviolet irradiation in the irradiation step may be carried out through the ultraviolet part 21 including a lighting module emitting ultraviolet light, a tilting member for adjusting the irradiation angle, and a height adjusting member for adjusting the height of the lighting module.
  • the interval between the ultraviolet ray unit and the storage container 11, the wavelength of ultraviolet rays, and the irradiation angle of ultraviolet rays may be the same as described above.
  • the process of acquiring the image for reading in the detection step may be performed through the detection unit 22, and the detection unit may be the same as described above.
  • the image for reading obtained in the detection step may be transmitted to the control unit 31 .
  • the determination step determines whether the contact lens 13 is accommodated in the storage container 11 through the control unit 31 for the reading image, and provides information.
  • control unit 31 in the determination step may be the same as described above.
  • control unit 31 may determine whether the contact lens package is defective according to the brightness of the reading image.
  • an image for reading may be acquired in real time from the detection unit 22 , and the presence or absence of the contact lens 13 and the degree of processing may be checked.
  • the reading image obtained through the detection unit 22 is compared with reference ultraviolet image information, and when it is within a set range, it is determined as normal, and when it is out of the range, it can be determined as defective. If it is difficult to determine whether the product is good or defective, it can be judged as a target for re-inspection.
  • the contact lens package inspection method may further include a second determining step before or after the determining step.
  • the visible light image obtained through the second detection unit 41 may be read to determine whether the packaging state of the storage container 11 is defective.
  • the second determination step compares the visible light image of the storage container 11 obtained through the second detection unit 41 with the reference visible light image information, and if it is within a set range, it is determined as normal, and if it is out of the range, it is determined as defective. can do. If it is difficult to determine whether it is normal or defective, it can be judged as a target for re-examination.
  • the contact lens package inspection method may further include, after the determining step, a screening step of selecting a defect based on a result of determining whether the defect is a defect in the determining step.
  • the selection step may be performed through a separate selection member located at the rear end of the detection unit 22, and the storage container 11 containing the contact lens 13 determined to be defective may be selected within the selection area,
  • the sorted storage container may be loaded in the sorting container 61 or the like.
  • Storage container 12 Receptacle
  • contact lens 21 ultraviolet part
  • control unit 32 display

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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Engineering & Computer Science (AREA)

Abstract

Un mode de réalisation de l'invention concerne un dispositif d'inspection d'emballage de lentilles de contact comprenant un ou plusieurs contenants de stockage, le dispositif comprenant : une partie à rayons ultraviolets pour émettre des rayons ultraviolets vers un contenant de stockage; une partie de détection pour acquérir une image de lecture à partir des rayons ultraviolets ayant traversé le contenant de stockage; et une partie de commande pour déterminer, par l'image de lecture, la présence d'une lentille de contact dans le contenant de stockage, le contenant de stockage comprenant une partie de réception dotée d'une partie supérieure ouverte et une partie d'étanchéité couvrant la partie supérieure de la partie de réception, la partie de réception recevant au moins une lentille de contact, et la partie à rayons ultraviolets émettant les rayons ultraviolets à un angle d'incidence de 0,1° à 80° par rapport à une surface parallèle à une surface de la partie d'étanchéité.
PCT/KR2022/002916 2021-04-01 2022-03-02 Dispositif et procédé d'inspection d'emballage de lentilles de contact Ceased WO2022211291A1 (fr)

Applications Claiming Priority (2)

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KR1020210042562A KR102303721B1 (ko) 2021-04-01 2021-04-01 콘택트렌즈 패키지 검사장치 및 검사방법
KR10-2021-0042562 2021-04-01

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102303721B1 (ko) * 2021-04-01 2021-09-16 김선호 콘택트렌즈 패키지 검사장치 및 검사방법
KR20230046025A (ko) 2021-09-29 2023-04-05 최원석 광학을 이용하여 콘택트렌즈의 불량을 검출하기 위한 검사 시스템
WO2023240581A1 (fr) * 2022-06-17 2023-12-21 晶硕光学股份有限公司 Produit de lentille de contact ainsi que son boîtier d'emballage et procédé de test associé
KR102752617B1 (ko) * 2024-03-06 2025-01-10 디케이메디비젼 주식회사 듀얼 촬영부를 갖는 콘택트렌즈의 비전 검사 장치

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JP2001235426A (ja) * 1999-12-22 2001-08-31 Novartis Ag パッケージ検査装置
KR20060094172A (ko) * 2005-02-23 2006-08-29 참이앤티 주식회사 음극선관용 패널의 검사장치 및 그 방법
JP2013054021A (ja) * 2011-09-02 2013-03-21 Miyagi Prefecture 透明体の検出方法及び検出装置
CN105629321A (zh) * 2016-02-24 2016-06-01 广州市华颉电子科技有限公司 实现图像采集的一体化装置及对三平面自动光学检测方法
JP6043220B2 (ja) * 2013-03-13 2016-12-14 株式会社イシダ 物品検査装置
KR102303721B1 (ko) * 2021-04-01 2021-09-16 김선호 콘택트렌즈 패키지 검사장치 및 검사방법

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US5568715A (en) * 1994-05-31 1996-10-29 Johnson & Johnson Vision Products, Inc. Automated inspection system with transport and ejector conveyor
SG87848A1 (en) * 1998-11-05 2002-04-16 Johnson & Johnson Vision Prod Missing lens detection system and method

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Publication number Priority date Publication date Assignee Title
JP2001235426A (ja) * 1999-12-22 2001-08-31 Novartis Ag パッケージ検査装置
KR20060094172A (ko) * 2005-02-23 2006-08-29 참이앤티 주식회사 음극선관용 패널의 검사장치 및 그 방법
JP2013054021A (ja) * 2011-09-02 2013-03-21 Miyagi Prefecture 透明体の検出方法及び検出装置
JP6043220B2 (ja) * 2013-03-13 2016-12-14 株式会社イシダ 物品検査装置
CN105629321A (zh) * 2016-02-24 2016-06-01 广州市华颉电子科技有限公司 实现图像采集的一体化装置及对三平面自动光学检测方法
KR102303721B1 (ko) * 2021-04-01 2021-09-16 김선호 콘택트렌즈 패키지 검사장치 및 검사방법

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