HK4693A - Directionally imaged retroreflective sheeting - Google Patents
Directionally imaged retroreflective sheeting Download PDFInfo
- Publication number
- HK4693A HK4693A HK46/93A HK4693A HK4693A HK 4693 A HK4693 A HK 4693A HK 46/93 A HK46/93 A HK 46/93A HK 4693 A HK4693 A HK 4693A HK 4693 A HK4693 A HK 4693A
- Authority
- HK
- Hong Kong
- Prior art keywords
- sheeting
- microspheres
- retroreflective sheeting
- binder layer
- retroreflective
- Prior art date
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)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Wire Bonding (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Projection-Type Copiers In General (AREA)
- Holo Graphy (AREA)
Claims (10)
- Matériel en feuille rétroréfléchissant (10) comprenant une seule couche de microsphères transparentes (11) partiellement noyées dans une couche de liant (12), la surface avant de ces microsphères se présentant en saillie par rapport à cette couche de liant, et une couche à réflexion spéculaire (14) recouvrant les surfaces arrière des microsphères (11), ce matériel en feuille (10) comportant au moins un dessin ne pouvant être vu sous forme d'un motif ou d'une image depuis l'avant du matériel en feuille, que suivant un champ conique de vision, dans lequel la couche de liant susdite (12) est de couleur claire, le dessin susdit est formé par de minuscules cavités (22), chacune d'elles présentant une ouverture (24) à travers une surface arrière d'une microsphère, et pratiquement chaque ouverture est plus petite que la profondeur de la cavité.
- Matériel en feuille rétroréfléchissant suivant la revendication 1, dans lequel la paroi de chaque cavité (22) est sensiblement un ellipsoïde, dont l'axe principal s'étend perpendiculairement à la surface de la microsphère (11), et chaque ouverture (24) est plus petite que le plus petit axe de l'ellipsoïde.
- Matériel en feuille rétroréfléchissant suivant la revendication 1 ou 2, dans lequel la couche de liant (12) est rendue opaque par un pigment de couleur claire.
- Matériel en feuille rétroréfléchissant suivant la revendication 3, dans lequel le pigment est formé par le TiO₂.
- Matériel en feuille rétroréfléchissant suivant la revendication 1, sur lequel est scellée une pellicule protectrice transparente (18) suivant un dessin à grille de zones scellées étroites (16) et de zones non scellées, relativement larges, les surfaces avant des microsphères étant exposées optiquement à une interface d'air dans les zones non scellées.
- Matériel en feuille rétroréfléchissant suivant la revendication 5, dans lequel la pellicule protectrice (18) comporte un colorant transparent.
- Matériel en feuille rétroréfléchissant suivant la revendication 1, dans lequel les microsphères sont en verre.
- Procédé de formation d'un motif pouvant être vu de manière directionnelle dans un matériel en feuille rétroréfléchissant (10) comportant une couche unique de microsphères en verre transparentes (11) partiellement noyées dans une couche de liant de couleur claire (12), la surface avant de ces microsphères se présentant en saillie par rapport à la couche de liant susdite, les microsphères (11) étant choisies pour concentrer un faisceau de lumière visible sensiblement à l'endroit d'une couche réfléchissante (14) qui recouvre les surfaces arrière des microsphères, dont les surfaces avant ne sont pas recouvertes, ce procédé comprenant l'envoi d'un faisceau laser à infrarouge suivant un angle particulier vers l'avant du matériel en feuille pour former de minuscules cavités (22), présentant chacune une ouverture (24) à travers la surface arrière d'une microsphère (11) le long de l'axe du faisceau laser, pratiquement chaque ouverture (24) étant plus petite que la profondeur de la cavité (22).
- Procédé suivant la revendication 8, dans lequel la longueur d'onde du faisceau laser est d'environ 1 micromètre.
- Procédé suivant la revendication 8, dans lequel, avant l'envoi du faisceau laser vers le matériel en feuille précité, une pellicule protectrice transparente (18) est scellée sur le matériel en feuille rétroréfléchissant (10) suivant un dessin en forme de grille de zones scellées étroites (16) et de zones non scellées, relativement larges, dans les limites desquelles les surfaces avant des microsphères (11) sont exposées optiquement à une interface d'air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/637,474 US4650283A (en) | 1984-08-03 | 1984-08-03 | Directionally imaged retroreflective sheeting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK4693A true HK4693A (en) | 1993-01-29 |
Family
ID=24556100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK46/93A HK4693A (en) | 1984-08-03 | 1993-01-21 | Directionally imaged retroreflective sheeting |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4650283A (fr) |
| EP (1) | EP0170518B1 (fr) |
| JP (1) | JPS6146976A (fr) |
| KR (1) | KR930003787B1 (fr) |
| AT (1) | ATE74669T1 (fr) |
| AU (1) | AU568758B2 (fr) |
| BR (1) | BR8503626A (fr) |
| CA (1) | CA1273835A (fr) |
| DE (1) | DE3585812D1 (fr) |
| DK (1) | DK316585A (fr) |
| ES (1) | ES8702667A1 (fr) |
| FI (1) | FI84520C (fr) |
| HK (1) | HK4693A (fr) |
| IE (1) | IE58653B1 (fr) |
| MX (1) | MX157153A (fr) |
| NO (1) | NO170787C (fr) |
| ZA (1) | ZA855873B (fr) |
Families Citing this family (44)
| 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 (fr) * | 1985-09-23 | 1990-03-27 | Thomas I. Bradshaw | Feuille portant une image directive dependant d'un contour et methode de fabrication de cette feuille |
| CA1284141C (fr) * | 1985-11-18 | 1991-05-14 | Minnesota Mining And Manufacturing Company | Feuille retroreflechissante a lentilles encapsulees, et fabrication de ladite feuille |
| 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 |
| WO1995031739A1 (fr) * | 1994-05-12 | 1995-11-23 | Minnesota Mining And Manufacturing Company | Article reflechissant et son procede de fabrication |
| DE69504370T2 (de) * | 1994-11-29 | 1999-05-12 | Minnesota Mining and Mfg. Co., St. Paul, Minn. | Transparenter dekorativer gegenstand mit einer geätzten erscheinung und einem prismatischen bild |
| 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 |
| CA2287795C (fr) | 1998-10-30 | 2009-12-29 | Avery Dennison Corporation | Feuille retroreflechissante contenant une image de validation et methode de fabrication idoine |
| US6288842B1 (en) | 2000-02-22 | 2001-09-11 | 3M Innovative Properties | Sheeting with composite image that floats |
| US7336422B2 (en) * | 2000-02-22 | 2008-02-26 | 3M Innovative Properties Company | 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 (fr) * | 2002-02-04 | 2003-08-14 | Avery Dennison Corporation | Compositions de couche de finition, substrats revetus de ces compositions et procede de fabrication et d'utilisation de ces compositions |
| 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 |
| EP1891469A1 (fr) * | 2005-06-16 | 2008-02-27 | Avery Dennison Corporation | Structure de feuille de rétroréflexion |
| 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 |
| JP5210163B2 (ja) * | 2006-08-23 | 2013-06-12 | 日本カーバイド工業株式会社 | 車両ナンバープレートおよびそれに用いる再帰反射シート |
| US7800825B2 (en) * | 2006-12-04 | 2010-09-21 | 3M Innovative Properties Company | User interface including composite images that float |
| EP2165224B1 (fr) | 2007-07-11 | 2023-12-13 | Thales Dis France SAS | Feuille présentant une image composite flottante |
| 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 |
| PL3043195T3 (pl) | 2009-08-25 | 2018-04-30 | Avery Dennison Corporation | Wyrób retrorefleksyjny zawierający pryzmatyczne elementy retrorefleksyjne oraz wytrawioną odblaskową powłokę metaliczną |
| WO2012099044A1 (fr) | 2011-01-19 | 2012-07-26 | 日本カーバイド工業株式会社 | Feuille rétroréfléchissante à microbilles de verre dans laquelle sont installées des images ayant des directivités visibles |
| 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 |
| CN116490805A (zh) | 2022-11-16 | 2023-07-25 | 恩希爱(杭州)薄膜有限公司 | 防伪反射片及其制造方法 |
| EP4480713A1 (fr) | 2023-06-21 | 2024-12-25 | Nippon Carbide Industries (Hangzhou) Co., Ltd. | Feuille réfléchissante anti-contrefaçon et son procédé de fabrication |
Family Cites Families (15)
| 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 |
| EP0029611B1 (fr) * | 1979-11-27 | 1985-07-31 | D. Swarovski & Co. | Plaque de rétroréflecteur |
| CA1244306A (fr) * | 1982-09-02 | 1988-11-08 | Louis C. Belisle | Feuilles retroreflechissantes |
| 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 |
-
1984
- 1984-08-03 US US06/637,474 patent/US4650283A/en not_active Expired - Lifetime
-
1985
- 1985-07-04 CA CA000486301A patent/CA1273835A/fr not_active Expired - Lifetime
- 1985-07-09 IE IE172285A patent/IE58653B1/en not_active IP Right Cessation
- 1985-07-11 DK DK316585A patent/DK316585A/da not_active Application Discontinuation
- 1985-07-11 AU AU44791/85A patent/AU568758B2/en not_active Expired
- 1985-07-12 ES ES545140A patent/ES8702667A1/es not_active Expired
- 1985-07-15 MX MX205991A patent/MX157153A/es unknown
- 1985-07-22 FI FI852852A patent/FI84520C/fi not_active IP Right Cessation
- 1985-07-30 KR KR1019850005477A patent/KR930003787B1/ko not_active Expired - Lifetime
- 1985-07-30 EP EP85305413A patent/EP0170518B1/fr not_active Expired - Lifetime
- 1985-07-30 AT AT85305413T patent/ATE74669T1/de not_active IP Right Cessation
- 1985-07-30 DE DE8585305413T patent/DE3585812D1/de not_active Expired - Lifetime
- 1985-07-31 BR BR8503626A patent/BR8503626A/pt not_active IP Right Cessation
- 1985-07-31 NO NO853045A patent/NO170787C/no unknown
- 1985-08-02 JP JP60169961A patent/JPS6146976A/ja active Granted
- 1985-08-02 ZA ZA855873A patent/ZA855873B/xx unknown
-
1993
- 1993-01-21 HK HK46/93A patent/HK4693A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES8702667A1 (es) | 1986-12-16 |
| MX157153A (es) | 1988-10-28 |
| AU4479185A (en) | 1986-02-06 |
| KR860002003A (ko) | 1986-03-24 |
| NO170787C (no) | 1992-12-02 |
| CA1273835A (fr) | 1990-09-11 |
| AU568758B2 (en) | 1988-01-07 |
| JPH0569220B2 (fr) | 1993-09-30 |
| FI84520C (fi) | 1991-12-10 |
| ES545140A0 (es) | 1986-12-16 |
| JPS6146976A (ja) | 1986-03-07 |
| DK316585D0 (da) | 1985-07-11 |
| FI84520B (fi) | 1991-08-30 |
| EP0170518A3 (en) | 1988-06-01 |
| DE3585812D1 (de) | 1992-05-14 |
| IE851722L (en) | 1986-02-03 |
| ATE74669T1 (de) | 1992-04-15 |
| FI852852A0 (fi) | 1985-07-22 |
| NO853045L (no) | 1986-02-04 |
| EP0170518A2 (fr) | 1986-02-05 |
| NO170787B (no) | 1992-08-24 |
| ZA855873B (en) | 1987-03-25 |
| DK316585A (da) | 1986-02-04 |
| EP0170518B1 (fr) | 1992-04-08 |
| US4650283A (en) | 1987-03-17 |
| KR930003787B1 (ko) | 1993-05-10 |
| IE58653B1 (en) | 1993-11-03 |
| BR8503626A (pt) | 1986-04-29 |
| FI852852L (fi) | 1986-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PF | Patent in force | ||
| PE | Patent expired |
Effective date: 20050729 |