CA1273835A - Directionally imaged retroreflective sheeting - Google Patents

Directionally imaged retroreflective sheeting

Info

Publication number
CA1273835A
CA1273835A CA000486301A CA486301A CA1273835A CA 1273835 A CA1273835 A CA 1273835A CA 000486301 A CA000486301 A CA 000486301A CA 486301 A CA486301 A CA 486301A CA 1273835 A CA1273835 A CA 1273835A
Authority
CA
Canada
Prior art keywords
sheeting
retroreflective sheeting
microspheres
retroreflective
microsphere
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.)
Expired - Lifetime
Application number
CA000486301A
Other languages
English (en)
French (fr)
Inventor
Bruce D. Orensteen
Thomas I. Bradshaw
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA1273835A publication Critical patent/CA1273835A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046—Constructional details
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Aerials With Secondary Devices (AREA)
  • Road Signs Or Road Markings (AREA)
  • Laminated Bodies (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Wire Bonding (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Projection-Type Copiers In General (AREA)
  • Holo Graphy (AREA)
CA000486301A 1984-08-03 1985-07-04 Directionally imaged retroreflective sheeting Expired - Lifetime CA1273835A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US637,474 1984-08-03
US06/637,474 US4650283A (en) 1984-08-03 1984-08-03 Directionally imaged retroreflective sheeting

Publications (1)

Publication Number Publication Date
CA1273835A true CA1273835A (en) 1990-09-11

Family

ID=24556100

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000486301A Expired - Lifetime CA1273835A (en) 1984-08-03 1985-07-04 Directionally imaged retroreflective sheeting

Country Status (17)

Country Link
US (1) US4650283A (enExample)
EP (1) EP0170518B1 (enExample)
JP (1) JPS6146976A (enExample)
KR (1) KR930003787B1 (enExample)
AT (1) ATE74669T1 (enExample)
AU (1) AU568758B2 (enExample)
BR (1) BR8503626A (enExample)
CA (1) CA1273835A (enExample)
DE (1) DE3585812D1 (enExample)
DK (1) DK316585A (enExample)
ES (1) ES8702667A1 (enExample)
FI (1) FI84520C (enExample)
HK (1) HK4693A (enExample)
IE (1) IE58653B1 (enExample)
MX (1) MX157153A (enExample)
NO (1) NO170787C (enExample)
ZA (1) ZA855873B (enExample)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691993A (en) * 1985-05-13 1987-09-08 Minnesota Mining And Manufacturing Company Transparent sheets containing directional images and method for forming the same
CA1267173A (en) * 1985-09-23 1990-03-27 Thomas I. Bradshaw Sheet containing contour-dependent directional image and method for forming the same
CA1284141C (en) * 1985-11-18 1991-05-14 Minnesota Mining And Manufacturing Company Encapsulated-lens retroreflective sheeting and method of making
US4983436A (en) * 1987-04-15 1991-01-08 Minnesota Mining And Manufacturing Company Retroreflective sheeting with backing film
AT388759B (de) * 1987-07-21 1989-08-25 Oesterr Forsch Seibersdorf Warenbahnmarkierung mittels streifencode
US4801193A (en) * 1988-03-04 1989-01-31 Reflexite Corporation Retroreflective sheet material and method of making same
GB2251091B (en) * 1989-11-02 1993-10-27 Storechange Ltd Reflective material
GB8924751D0 (en) * 1989-11-02 1989-12-20 Storechange Ltd Reflective material
US6019287A (en) * 1993-10-06 2000-02-01 3M Innovative Properties Company Security reader for automatic detection of tampering and alteration
US5621571A (en) * 1994-02-14 1997-04-15 Minnesota Mining And Manufacturing Company Integrated retroreflective electronic display
CA2188141C (en) * 1994-05-12 2003-05-20 Vera L. Lightle Retroreflective article and method of making same
AU703068B2 (en) * 1994-11-29 1999-03-11 Minnesota Mining And Manufacturing Company Transparent decorative article having an etched appearing/prismatic image thereon
AU6338096A (en) * 1995-06-29 1997-01-30 Minnesota Mining And Manufacturing Company Rainbow sheeting having distinct color changes and/or hidden images
US6086707A (en) * 1996-02-29 2000-07-11 Raytheon Company Method for making an identification document
US5940212A (en) * 1997-10-30 1999-08-17 3M Innovative Properties Company Cube corner article with altered inactive areas and method of making same
US6045230A (en) * 1998-02-05 2000-04-04 3M Innovative Properties Company Modulating retroreflective article
US6282026B1 (en) 1998-02-05 2001-08-28 3M Innovative Properties Company Retroreflectors having two optical surfaces and varying retroreflectivity
ATE358827T1 (de) 1998-10-30 2007-04-15 Avery Dennison Corp Verfahren zur herstellung einer retroreflektierenden folie mit einem bild zur echtheitsprüfung
US7336422B2 (en) * 2000-02-22 2008-02-26 3M Innovative Properties Company Sheeting with composite image that floats
US6288842B1 (en) 2000-02-22 2001-09-11 3M Innovative Properties Sheeting with composite image that floats
US7068434B2 (en) 2000-02-22 2006-06-27 3M Innovative Properties Company Sheeting with composite image that floats
US6500526B1 (en) 2000-09-28 2002-12-31 Avery Dennison Corporation Retroreflective sheeting containing a validation image and methods of making the same
WO2003066761A2 (en) * 2002-02-04 2003-08-14 Avery Dennison Corporation Topcoat compositions, coated substrates and method
JP2004252415A (ja) * 2003-01-28 2004-09-09 Kyodo Printing Co Ltd 偽造防止粘着シール及びその製造方法
GB2400717A (en) * 2003-04-05 2004-10-20 Royal British Legion Ind Ltd A method of temporarily concealing information displayed by a sign.
US8062735B2 (en) * 2004-04-13 2011-11-22 L-1 Secure Credentialing, Inc. Retroreflective security features in secure documents
US7616332B2 (en) * 2004-12-02 2009-11-10 3M Innovative Properties Company System for reading and authenticating a composite image in a sheeting
AU2006259705B2 (en) * 2005-06-16 2012-05-17 Avery Dennison Corporation Retroreflective sheet structure
JP4697705B2 (ja) * 2005-07-15 2011-06-08 共同印刷株式会社 再起反射材及び再帰反射材へのマーキング方法
US7981499B2 (en) * 2005-10-11 2011-07-19 3M Innovative Properties Company Methods of forming sheeting with a composite image that floats and sheeting with a composite image that floats
US7586685B2 (en) * 2006-07-28 2009-09-08 Dunn Douglas S Microlens sheeting with floating image using a shape memory material
EP2055534B1 (en) 2006-08-23 2013-04-17 Nippon Carbide Kogyo Kabushiki Kaisha Vehicle license plate and retroreflective sheet used for the same
US7800825B2 (en) * 2006-12-04 2010-09-21 3M Innovative Properties Company User interface including composite images that float
US8459807B2 (en) 2007-07-11 2013-06-11 3M Innovative Properties Company Sheeting with composite image that floats
CN103257379B (zh) * 2007-11-27 2015-08-05 3M创新有限公司 形成具有悬浮合成图像的片材的母模
US7995278B2 (en) * 2008-10-23 2011-08-09 3M Innovative Properties Company Methods of forming sheeting with composite images that float and sheeting with composite images that float
US8111463B2 (en) 2008-10-23 2012-02-07 3M Innovative Properties Company Methods of forming sheeting with composite images that float and sheeting with composite images that float
US20120099200A1 (en) 2009-07-17 2012-04-26 Nippon Carbide Industries Co., Inc. Retroreflective sheeting of micro glass sphere provided with image having visual direction
PL2470931T3 (pl) 2009-08-25 2016-08-31 Avery Dennison Corp Wyrób retrorefleksyjny
WO2012099044A1 (ja) 2011-01-19 2012-07-26 日本カーバイド工業株式会社 視認方向性を持った画像が設置された微小ガラス球型再帰反射シート
DE102015118966A1 (de) * 2015-11-05 2017-05-11 Erich Utsch Ag Retroreflektierender Körper mit Farbeffekt und Herstellungsverfahren
CN108680976B (zh) * 2018-07-25 2021-11-09 浙江夜光明光电科技股份有限公司 一种双色反光热贴膜的制作方法
WO2024103308A1 (zh) 2022-11-16 2024-05-23 恩希爱（杭州）薄膜有限公司 防伪反射片及其制造方法
EP4480713A1 (en) 2023-06-21 2024-12-25 Nippon Carbide Industries (Hangzhou) Co., Ltd. Anti-counterfeit reflective sheet and manufacturing method therefor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190178A (en) * 1961-06-29 1965-06-22 Minnesota Mining & Mfg Reflex-reflecting sheeting
US3154872A (en) * 1963-02-13 1964-11-03 Minnesota Mining & Mfg Tamper-proof markings for reflecting structures
US3700305A (en) * 1970-12-14 1972-10-24 Minnesota Mining & Mfg Retroreflective microspheres having a dielectric mirror on a portion of their surface and retroreflective constructions containing such microspheres
US3836227A (en) * 1973-04-13 1974-09-17 Minnesota Mining & Mfg Heat-bondable retroreflective sheeting
US3801183A (en) * 1973-06-01 1974-04-02 Minnesota Mining & Mfg Retro-reflective film
US4082427A (en) * 1974-07-02 1978-04-04 Fukuoka Tokushu Garasu Kabushiki Kaisha High refractive index glass compositions
JPS51144198A (en) * 1975-06-06 1976-12-10 Seibu Polymer Kasei Kk Return reflector
US4025159A (en) * 1976-02-17 1977-05-24 Minnesota Mining And Manufacturing Company Cellular retroreflective sheeting
US4099838A (en) * 1976-06-07 1978-07-11 Minnesota Mining And Manufacturing Company Reflective sheet material
US4082426A (en) * 1976-11-26 1978-04-04 Minnesota Mining And Manufacturing Company Retroreflective sheeting with retroreflective markings
US4200875A (en) * 1978-07-31 1980-04-29 The United States Of America As Represented By The Secretary Of The Air Force Apparatus for, and method of, recording and viewing laser-made images on high gain retroreflective sheeting
US4367920A (en) * 1979-10-01 1983-01-11 Minnesota Mining And Manufacturing Company Retroflective sheeting
DE3070933D1 (en) * 1979-11-27 1985-09-05 Swarovski & Co Retroreflection plate
CA1244306A (en) * 1982-09-02 1988-11-08 Louis C. Belisle Retroreflective sheeting
JPH0617921B2 (ja) * 1984-03-15 1994-03-09 西武ポリマ化成株式会社 セル状反射シート

Also Published As

Publication number Publication date
ZA855873B (en) 1987-03-25
IE58653B1 (en) 1993-11-03
JPH0569220B2 (enExample) 1993-09-30
FI84520B (fi) 1991-08-30
US4650283A (en) 1987-03-17
ATE74669T1 (de) 1992-04-15
EP0170518A3 (en) 1988-06-01
NO853045L (no) 1986-02-04
BR8503626A (pt) 1986-04-29
FI84520C (fi) 1991-12-10
KR930003787B1 (ko) 1993-05-10
EP0170518B1 (en) 1992-04-08
ES8702667A1 (es) 1986-12-16
ES545140A0 (es) 1986-12-16
NO170787C (no) 1992-12-02
FI852852L (fi) 1986-02-04
DK316585A (da) 1986-02-04
HK4693A (en) 1993-01-29
FI852852A0 (fi) 1985-07-22
AU4479185A (en) 1986-02-06
KR860002003A (ko) 1986-03-24
DE3585812D1 (de) 1992-05-14
IE851722L (en) 1986-02-03
JPS6146976A (ja) 1986-03-07
AU568758B2 (en) 1988-01-07
DK316585D0 (da) 1985-07-11
EP0170518A2 (en) 1986-02-05
NO170787B (no) 1992-08-24
MX157153A (es) 1988-10-28

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Legal Events

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