KR102285751B1 - 위조 방지용 소자 - Google Patents

위조 방지용 소자 Download PDF

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Publication number
KR102285751B1
KR102285751B1 KR1020190093258A KR20190093258A KR102285751B1 KR 102285751 B1 KR102285751 B1 KR 102285751B1 KR 1020190093258 A KR1020190093258 A KR 1020190093258A KR 20190093258 A KR20190093258 A KR 20190093258A KR 102285751 B1 KR102285751 B1 KR 102285751B1
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KR
South Korea
Prior art keywords
image
diffractive optical
image element
layer
counterfeiting
Prior art date
Application number
KR1020190093258A
Other languages
English (en)
Korean (ko)
Other versions
KR20210015031A (ko
Inventor
최진영
김석규
Original Assignee
(주) 나노메카
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.)
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Publication date
Application filed by (주) 나노메카 filed Critical (주) 나노메카
Priority to KR1020190093258A priority Critical patent/KR102285751B1/ko
Priority to PCT/KR2020/009966 priority patent/WO2021020870A1/fr
Publication of KR20210015031A publication Critical patent/KR20210015031A/ko
Application granted granted Critical
Publication of KR102285751B1 publication Critical patent/KR102285751B1/ko

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)
KR1020190093258A 2019-07-31 2019-07-31 위조 방지용 소자 KR102285751B1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020190093258A KR102285751B1 (ko) 2019-07-31 2019-07-31 위조 방지용 소자
PCT/KR2020/009966 WO2021020870A1 (fr) 2019-07-31 2020-07-29 Dispositif pour la empêcher la contrefaçon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190093258A KR102285751B1 (ko) 2019-07-31 2019-07-31 위조 방지용 소자

Publications (2)

Publication Number Publication Date
KR20210015031A KR20210015031A (ko) 2021-02-10
KR102285751B1 true KR102285751B1 (ko) 2021-08-05

Family

ID=74230406

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190093258A KR102285751B1 (ko) 2019-07-31 2019-07-31 위조 방지용 소자

Country Status (2)

Country Link
KR (1) KR102285751B1 (fr)
WO (1) WO2021020870A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007060648A2 (fr) * 2005-11-25 2007-05-31 Dublin Institute Of Technology Capteur holographique
JP2008281912A (ja) * 2007-05-14 2008-11-20 Dainippon Printing Co Ltd ラベル
JP2011033935A (ja) 2009-08-04 2011-02-17 Toppan Printing Co Ltd 光学物品およびその製造方法
JP2011081165A (ja) 2009-10-07 2011-04-21 Toppan Printing Co Ltd 画像形成体の製造方法及び画像形成体、並びに個人認証媒体の製造方法及び個人認証媒体
JP2012226260A (ja) 2011-04-22 2012-11-15 Toppan Printing Co Ltd 偽造防止媒体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100225450B1 (ko) * 1997-05-09 1999-10-15 이경식 직렬 연결된 브라그 회절격자를 이용한 협대역 투과 필터 및 그 필터를 이용한 파장분할 역다중화기
KR101075718B1 (ko) * 2009-01-30 2011-10-21 한국조폐공사 광 회절 패턴이 적용된 보안 카드
WO2017138536A1 (fr) * 2016-02-09 2017-08-17 凸版印刷株式会社 Élément optique et support d'enregistrement d'informations pour la prévention de la contrefaçon
KR101935657B1 (ko) * 2017-03-28 2019-01-04 고려대학교 산학협력단 진위 판정 장치 및 이의 제조 방법
KR101935659B1 (ko) * 2017-03-31 2019-01-04 고려대학교 산학협력단 진위 판정 장치 및 이의 제조 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007060648A2 (fr) * 2005-11-25 2007-05-31 Dublin Institute Of Technology Capteur holographique
JP2008281912A (ja) * 2007-05-14 2008-11-20 Dainippon Printing Co Ltd ラベル
JP2011033935A (ja) 2009-08-04 2011-02-17 Toppan Printing Co Ltd 光学物品およびその製造方法
JP2011081165A (ja) 2009-10-07 2011-04-21 Toppan Printing Co Ltd 画像形成体の製造方法及び画像形成体、並びに個人認証媒体の製造方法及び個人認証媒体
JP2012226260A (ja) 2011-04-22 2012-11-15 Toppan Printing Co Ltd 偽造防止媒体

Also Published As

Publication number Publication date
WO2021020870A1 (fr) 2021-02-04
KR20210015031A (ko) 2021-02-10

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