KR101075718B1 - 광 회절 패턴이 적용된 보안 카드 - Google Patents
광 회절 패턴이 적용된 보안 카드 Download PDFInfo
- Publication number
- KR101075718B1 KR101075718B1 KR1020090007710A KR20090007710A KR101075718B1 KR 101075718 B1 KR101075718 B1 KR 101075718B1 KR 1020090007710 A KR1020090007710 A KR 1020090007710A KR 20090007710 A KR20090007710 A KR 20090007710A KR 101075718 B1 KR101075718 B1 KR 101075718B1
- Authority
- KR
- South Korea
- Prior art keywords
- diffraction pattern
- card
- security card
- security
- diffraction
- Prior art date
Links
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/305—Associated digital information
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/425—Marking by deformation, e.g. embossing
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
- Holo Graphy (AREA)
Abstract
Description
Claims (7)
- 카드 배경이 인쇄되는 인쇄 기재부;상기 인쇄 기재부 상측에 위치하여 입사광을 회절시키는 회절 패턴이 형성된 투명 기재부; 및상기 투명 기재부 상측에 배치되어, 상기 투명 기재부의 적어도 일부를 노출시키도록 형성된 투명 보호부;를 포함하고,상기 회절 패턴의 직경은 20 내지 50㎛이고, 최소 선폭은 1㎛이며, 상기 회절 패턴이 형성된 투명 기재부의 표면 거칠기(Ra)는 0.2~1.0㎛인 것을 특징으로 하는 보안카드.
- 청구항 1에 있어서, 상기 회절 패턴은 원형 또는 다각형이 중첩된 형태인 것을 특징으로 하는 보안카드.
- 청구항 1 또는 2에 있어서, 상기 회절 패턴의 횡단면은 유선형 톱니, 다중 계단, 계단, 톱니 모양 중 어느 하나의 모양을 갖는 것을 특징으로 하는 보안카드.
- 삭제
- 청구항 1 또는 2에 있어서, 상기 회절 패턴은 2차원적으로 배열되어 있는 것을 특징으로 하는 보안카드.
- 청구항 5에 있어서, 상기 회절 패턴은 서로 크기가 다른 패턴을 순차적으로 조합하는 것을 특징으로 하는 보안카드.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090007710A KR101075718B1 (ko) | 2009-01-30 | 2009-01-30 | 광 회절 패턴이 적용된 보안 카드 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090007710A KR101075718B1 (ko) | 2009-01-30 | 2009-01-30 | 광 회절 패턴이 적용된 보안 카드 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100088465A KR20100088465A (ko) | 2010-08-09 |
KR101075718B1 true KR101075718B1 (ko) | 2011-10-21 |
Family
ID=42754681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020090007710A KR101075718B1 (ko) | 2009-01-30 | 2009-01-30 | 광 회절 패턴이 적용된 보안 카드 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101075718B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130300101A1 (en) * | 2012-05-11 | 2013-11-14 | Document Security Systems, Inc. | Laminated Documents and Cards Including Embedded Security Features |
KR102281698B1 (ko) * | 2019-04-29 | 2021-07-26 | 고려대학교 산학협력단 | 다중상의 위조방지용 필름 및 이의 제조방법 |
KR102285751B1 (ko) * | 2019-07-31 | 2021-08-05 | (주) 나노메카 | 위조 방지용 소자 |
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2009
- 2009-01-30 KR KR1020090007710A patent/KR101075718B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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KR20100088465A (ko) | 2010-08-09 |
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