CA2256315A1 - Retroreflective articles having microcubes, and tools and methods for forming microcubes - Google Patents

Retroreflective articles having microcubes, and tools and methods for forming microcubes

Info

Publication number
CA2256315A1
CA2256315A1 CA002256315A CA2256315A CA2256315A1 CA 2256315 A1 CA2256315 A1 CA 2256315A1 CA 002256315 A CA002256315 A CA 002256315A CA 2256315 A CA2256315 A CA 2256315A CA 2256315 A1 CA2256315 A1 CA 2256315A1
Authority
CA
Canada
Prior art keywords
microcubes
tools
methods
forming
retroreflective articles
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.)
Granted
Application number
CA002256315A
Other languages
French (fr)
Other versions
CA2256315C (en
Inventor
Sidney A. Heenan
Anthony J. Montalbano
Liviu A. Coman
Dennis I. Couzin
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.)
Avery Dennison Corp
Original Assignee
Stimsonite Corporation
Sidney A. Heenan
Anthony J. Montalbano
Liviu A. Coman
Dennis I. Couzin
Avery Dennison Corporation
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24629539&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2256315(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stimsonite Corporation, Sidney A. Heenan, Anthony J. Montalbano, Liviu A. Coman, Dennis I. Couzin, Avery Dennison Corporation filed Critical Stimsonite Corporation
Publication of CA2256315A1 publication Critical patent/CA2256315A1/en
Application granted granted Critical
Publication of CA2256315C publication Critical patent/CA2256315C/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
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00605—Production of reflex reflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B29C2059/023—Microembossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0083—Reflectors
    • B29L2011/0091—Reflex reflectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component

Abstract

The present invention provides retroreflective articles having microcubes and tools and methods for forming microcubes. One of the retroreflective articles comprises an array of microcubes; at least one microcube in the array is rectangular (110).
CA 2256315 1996-05-30 1997-05-22 Retroreflective articles having microcubes, and tools and methods for forming microcubes Expired - Lifetime CA2256315C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/655,595 1996-05-30
US08/655,595 US6015214A (en) 1996-05-30 1996-05-30 Retroreflective articles having microcubes, and tools and methods for forming microcubes
PCT/US1997/008806 WO1997045255A1 (en) 1996-05-30 1997-05-22 Retroreflective articles having microcubes, and tools and methods for forming microcubes

Publications (2)

Publication Number Publication Date
CA2256315A1 true CA2256315A1 (en) 1997-12-04
CA2256315C CA2256315C (en) 2007-01-16

Family

ID=24629539

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2256315 Expired - Lifetime CA2256315C (en) 1996-05-30 1997-05-22 Retroreflective articles having microcubes, and tools and methods for forming microcubes

Country Status (7)

Country Link
US (4) US6015214A (en)
EP (2) EP2246182A3 (en)
CN (1) CN1226853A (en)
AU (1) AU730149B2 (en)
BR (1) BR9710684A (en)
CA (1) CA2256315C (en)
WO (1) WO1997045255A1 (en)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706132A (en) * 1996-01-19 1998-01-06 Minnesota Mining And Manufacturing Company Dual orientation retroreflective sheeting
EP0912116B1 (en) * 1996-05-03 2002-06-19 D. Swarovski & Co. Decorative device for an article of clothing
US6015214A (en) 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes
CN1105637C (en) 1997-07-02 2003-04-16 美国3M公司 Cube corner sheeting mold and its mfg. method
KR100574610B1 (en) 1997-07-02 2006-04-28 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 Retroreflective cube corner sheeting, molds therefor, and methods of making the same
US6253442B1 (en) * 1997-07-02 2001-07-03 3M Innovative Properties Company Retroreflective cube corner sheeting mold and method for making the same
US5898523A (en) * 1997-07-02 1999-04-27 Minnesota Mining & Manufacturing Company Tiled retroreflective sheeting composed of highly canted cube corner elements
US5981032A (en) * 1997-07-02 1999-11-09 3M Innovative Properties Company Retroreflective cube corner sheeting mold and sheeting formed therefrom
US6036322A (en) * 1997-12-01 2000-03-14 Reflexite Corporation Multi-orientation retroreflective structure
US6200399B1 (en) * 1999-01-14 2001-03-13 Avery Dennison Corporation Method and apparatus for embossing a precision pattern of micro-prismatic elements in a resinous sheet or laminate
US6540367B1 (en) * 1999-04-07 2003-04-01 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US6551014B2 (en) 2000-02-24 2003-04-22 3M Innovative Properties Company Raised pavement marker with improved lens
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
US20030213129A1 (en) * 2000-07-28 2003-11-20 Warner-Lambert Company Llc Microprismatic shaving surface and shaving implements incorporating said surface
US6507441B1 (en) 2000-10-16 2003-01-14 Optid, Optical Identification Technologies Ltd. Directed reflectors and systems utilizing same
EP1360030B1 (en) * 2001-02-14 2005-09-28 Surface Generation Limited Workpiece support
CN100406240C (en) 2001-06-11 2008-07-30 艾弗里·丹尼森公司 Retroreflector with controlled divergence made by groove undulation
US6931665B2 (en) 2001-07-30 2005-08-23 3M Innovative Properties Company Vapor permeable retroreflective garment
CA2457653A1 (en) * 2001-08-16 2003-02-27 Optidtech Optical Identification Technologies Ltd. Electro-optic reader for retro-reflective bar codes
WO2003061949A1 (en) * 2002-01-18 2003-07-31 Avery Dennison Corporation Sheet having microsized architecture
US20030155656A1 (en) * 2002-01-18 2003-08-21 Chiu Cindy Chia-Wen Anisotropically conductive film
EP1467945A2 (en) * 2002-01-18 2004-10-20 Avery Dennison Corporation Covered microchamber structures
DE10216579A1 (en) * 2002-04-14 2003-10-23 Sen Hans-Erich Gubela Wide-angle sensor system with triple reflector and production of the tools
US7264880B2 (en) * 2002-04-30 2007-09-04 Avery Dennison Corporation Fluorescent articles having multiple film layers
US7618709B2 (en) * 2002-04-30 2009-11-17 Avery Dennison Corporation Fluorescent articles having multiple film layers
WO2004007154A2 (en) 2002-07-16 2004-01-22 Eveready Battery Company, Inc. Microreplicated shaving element
US6764885B2 (en) 2002-10-17 2004-07-20 Avery Dennison Corporation Method of fabricating transistor device
US6871966B2 (en) * 2002-12-12 2005-03-29 Avery Dennison Corporation Retroreflector with controlled divergence made by the method of localized substrate stress
GB0229191D0 (en) * 2002-12-14 2003-01-22 Plastic Logic Ltd Embossing of polymer devices
US6902280B2 (en) * 2002-12-17 2005-06-07 Avery Dennison Corporation Tri-level cube corner ruling
US8456447B2 (en) 2003-02-14 2013-06-04 Next Holdings Limited Touch screen signal processing
US8508508B2 (en) * 2003-02-14 2013-08-13 Next Holdings Limited Touch screen signal processing with single-point calibration
US7629967B2 (en) 2003-02-14 2009-12-08 Next Holdings Limited Touch screen signal processing
EP2442157A3 (en) 2003-03-06 2012-05-09 3M Innovative Properties Co. Lamina comprising cube corner elements and retroreflective sheeting
US7152983B2 (en) 2003-03-06 2006-12-26 3M Innovative Properties Company Lamina comprising cube corner elements and retroreflective sheeting
US7174619B2 (en) * 2003-03-06 2007-02-13 3M Innovative Properties Company Methods of making microstructured lamina and apparatus
US6884371B2 (en) * 2003-03-06 2005-04-26 3M Innovative Properties Company Method of making retroreflective sheeting and articles
US20050151021A1 (en) * 2003-12-17 2005-07-14 Hamilton Douglas C. Heat dissipating, light-reflecting plates for radiator systems of spacecraft and methods for fabricating the same
US7370981B2 (en) * 2003-12-24 2008-05-13 Avery Dennison Corporation Cube corner retroreflector with limited range
US7538759B2 (en) 2004-05-07 2009-05-26 Next Holdings Limited Touch panel display system with illumination and detection provided from a single edge
GB0414449D0 (en) * 2004-06-29 2004-07-28 Surface Generation Ltd Improved tooling system
CN100526917C (en) * 2004-12-28 2009-08-12 3M创新有限公司 Prismatic retroreflective article with fluorine- or silicon-containing prisms
US7195360B2 (en) * 2004-12-28 2007-03-27 3M Innovative Properties Company Prismatic retroreflective article and method
WO2006138129A1 (en) * 2005-06-16 2006-12-28 Avery Dennison Corporation Retroreflective sheet structure
BRPI0616423B8 (en) * 2005-09-26 2018-09-04 Avery Dennison Corp retro-reflective laminated material
CA2629944C (en) * 2005-10-27 2016-02-09 Avery Dennison Corporation Fluorescent article having multiple layers
RU2443003C2 (en) * 2006-07-17 2012-02-20 Эйвери Деннисон Корпорейшн Method of manufacturing a distorted optical components array
US8224189B1 (en) 2007-02-02 2012-07-17 Sunlight Photonics Inc. Retro-directive target for free-space optical communication and method of producing the same
WO2008109420A2 (en) * 2007-03-02 2008-09-12 Technology Solutions & Invention Llc Two-sided corner-cube retroreflectors and methods of manufacturing the same
US8115753B2 (en) * 2007-04-11 2012-02-14 Next Holdings Limited Touch screen system with hover and click input methods
US7547105B2 (en) * 2007-07-16 2009-06-16 3M Innovative Properties Company Prismatic retroreflective article with cross-linked image layer and method of making same
CN101868741B (en) * 2007-08-24 2012-08-22 日本电石工业株式会社 Cube corner retroreflective article
CN101802760B (en) * 2007-08-30 2013-03-20 奈克斯特控股有限公司 Optical touch screen with improved illumination
AU2008280952A1 (en) * 2007-08-30 2009-03-19 Next Holdings Ltd Low profile touch panel systems
KR20090067654A (en) * 2007-12-21 2009-06-25 김봉주 Rtro-reflecting unit and retro-reflector therewith
US8405636B2 (en) * 2008-01-07 2013-03-26 Next Holdings Limited Optical position sensing system and optical position sensor assembly
US20090207144A1 (en) * 2008-01-07 2009-08-20 Next Holdings Limited Position Sensing System With Edge Positioning Enhancement
US20090213093A1 (en) * 2008-01-07 2009-08-27 Next Holdings Limited Optical position sensor using retroreflection
CN101971064B (en) 2008-01-14 2015-07-29 艾利丹尼森公司 For the retrodirective reflector of touch-screen applications and position sensing
US8465639B2 (en) * 2008-04-09 2013-06-18 Orafol Americas Inc. Pin based method of precision diamond turning to make prismatic mold and sheeting
US20090278816A1 (en) * 2008-05-06 2009-11-12 Next Holdings Limited Systems and Methods For Resolving Multitouch Scenarios Using Software Filters
US8248691B2 (en) * 2008-05-30 2012-08-21 Avery Dennison Corporation Infrared light transmission film
US9653006B2 (en) 2008-09-17 2017-05-16 Avery Dennison Corporation Activatable adhesive, labels, and related methods
JP2012504817A (en) * 2008-10-02 2012-02-23 ネクスト ホールディングス リミティド Stereo optical sensor for multi-touch resolution in touch detection system
US20100225588A1 (en) * 2009-01-21 2010-09-09 Next Holdings Limited Methods And Systems For Optical Detection Of Gestures
US20100229090A1 (en) * 2009-03-05 2010-09-09 Next Holdings Limited Systems and Methods for Interacting With Touch Displays Using Single-Touch and Multi-Touch Gestures
EP2431774B1 (en) * 2009-05-11 2019-03-27 Nippon Carbide Industries Co., Inc. Hexagonal corner cube retroreflective article
CN102449086B (en) 2009-09-17 2014-08-13 艾利丹尼森公司 Activatable adhesive, labels, and related methods
US20110199387A1 (en) * 2009-11-24 2011-08-18 John David Newton Activating Features on an Imaging Device Based on Manipulations
WO2011066343A2 (en) * 2009-11-24 2011-06-03 Next Holdings Limited Methods and apparatus for gesture recognition mode control
WO2011069151A2 (en) * 2009-12-04 2011-06-09 Next Holdings Limited Sensor methods and systems for position detection
PL2510424T3 (en) 2009-12-11 2017-06-30 Avery Dennison Corporation Position sensing systems for use in touch screens and prismatic film used therein
USD665584S1 (en) * 2010-03-05 2012-08-21 Orafol Europe Gmbh Retro-reflective sheeting with a corner cube surface pattern having angular corner cube circular regions
US20110234542A1 (en) * 2010-03-26 2011-09-29 Paul Marson Methods and Systems Utilizing Multiple Wavelengths for Position Detection
US20130133532A1 (en) 2011-11-30 2013-05-30 Avery Dennison Corporation Linerless labels and activatable adhesives, systems, machines and methods therefor
US20130133824A1 (en) 2011-11-30 2013-05-30 Avery Dennison Corporation Activatable Linerless Labels and Activatable Adhesives, Systems, Machines and Methods Therefor
US9050762B2 (en) 2012-03-23 2015-06-09 Orafol Americas Inc. Methods for fabricating retroreflector tooling and retroreflective microstructures and devices thereof
JP2016513031A (en) * 2013-02-11 2016-05-12 オラフォル アメリカズ インコーポレイテッド Cube corner reflector and method thereof
KR20150033217A (en) * 2013-09-23 2015-04-01 김현식 Step Prismatic Retro-Reflector with Improved Wide-angle Performance
CN111830777A (en) * 2014-05-27 2020-10-27 米拉维兹公司 Method for optimizing retroreflective display system
CN104133259A (en) * 2014-07-04 2014-11-05 西南科技大学 Retroreflection film based on substrate assembly technology
US20160011346A1 (en) 2014-07-14 2016-01-14 Sergiy Vasylyev High incidence angle retroreflective sheeting
CN104991300A (en) * 2015-07-09 2015-10-21 袁梦 Retro-reflection reflective membrane, and preparation method and application thereof
CN108699788A (en) 2015-11-06 2018-10-23 10X技术有限公司 Retroreflective traffic signs and its manufacturing method and manufacturing equipment
JP6846530B2 (en) * 2017-02-14 2021-03-24 スリーエム イノベイティブ プロパティズ カンパニー Security article with a group of microstructures manufactured by end milling
US20200096683A1 (en) 2017-05-25 2020-03-26 3M Innovative Properties Company Cube corner retroreflective articleswith tailored retroreflectivity and methods of making
CN111065487B (en) * 2017-09-11 2022-08-19 美国奥拉福有限公司 Method and apparatus for manufacturing retroreflector prism having polygonal diaphragm
CN109500544B (en) * 2018-10-16 2020-11-06 福建夜光达科技股份有限公司 Thin and thick interval laminated manufacturing method of microstructure mold
DE202019001143U1 (en) 2019-03-11 2019-04-23 Imos Gubela Gmbh Round retroreflector
EP4168230A4 (en) 2020-08-27 2023-12-27 Aura Optical Systems, LP Microprismatic retroreflective mold, sheet, and article and methods of manufacture thereof
CN112895198B (en) * 2021-01-13 2022-07-19 广东瑞远新材料有限公司 Polyethylene granulation process
US11567246B1 (en) 2021-09-10 2023-01-31 10X Technology Llc Retroreflective traffic sign and process and apparatus for manufacturing same

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA785139A (en) * 1968-05-14 Elastic Stop Nut Corporation Of America Reflector and method of making same
US2310790A (en) * 1943-02-09 Optical reflecting material
US1591572A (en) * 1925-02-05 1926-07-06 Jonathan C Stimson Process and apparatus for making central triple reflectors
GB269760A (en) 1926-07-02 1927-04-28 Jonathan Cass Stimson Process and apparatus for making central triple reflectors
US1795952A (en) 1927-12-29 1931-03-10 Robert P Shick Highway danger reflector
US1925096A (en) * 1930-08-14 1933-09-05 Rudolph M Hunter Glass mold
GB423464A (en) * 1932-12-31 1935-02-01 Gustave Leray Improvements in light reflectors
US2055298A (en) * 1932-12-31 1936-09-22 Leray Gustave Light reflector
US3069721A (en) * 1960-03-04 1962-12-25 Ciba Ltd Tools for making surface patterns
FR1289029A (en) 1961-04-17 1962-03-30 Improvement in obtaining molded parts with optical surfaces
US3332327A (en) * 1964-10-23 1967-07-25 Elastic Stop Nut Corp Pavement marker
US3417959A (en) * 1966-11-14 1968-12-24 Minnesota Mining & Mfg Die for forming retro-reflective article
US3924929A (en) * 1966-11-14 1975-12-09 Minnesota Mining & Mfg Retro-reflective sheet material
US4208090A (en) * 1967-03-24 1980-06-17 Amerace Corporation Reflector structure
US3541606A (en) * 1967-10-16 1970-11-17 Amerace Esna Corp Reflectorized vehicles and reflectors therefor
US3922065A (en) * 1968-05-31 1975-11-25 Minnesota Mining & Mfg Cube-corner retro-reflective article
US3541216A (en) * 1968-08-26 1970-11-17 Chris Craft Ind Inc Process for making an embossed product
DE1917292A1 (en) * 1969-04-03 1970-10-15 Hans Hillesheim Reflective prism-former manufacture
US3649153A (en) * 1969-11-04 1972-03-14 Peter E Brudy Faceted core
US3684348A (en) * 1970-09-29 1972-08-15 Rowland Dev Corp Retroreflective material
US3689346A (en) * 1970-09-29 1972-09-05 Rowland Dev Corp Method for producing retroreflective material
US3712706A (en) * 1971-01-04 1973-01-23 American Cyanamid Co Retroreflective surface
US3830682A (en) * 1972-11-06 1974-08-20 Rowland Dev Corp Retroreflecting signs and the like with novel day-night coloration
US3834789A (en) * 1973-02-02 1974-09-10 Dominion Auto Access Reflecting device
US3873184A (en) * 1973-02-16 1975-03-25 Amerace Esna Corp Reflector with interspersed angled reflex elements
DE2317871A1 (en) * 1973-04-10 1974-10-24 Nier Marianne REFLECTIVE OPTICAL GUIDANCE AND WARNING DEVICES
US3923378A (en) * 1973-04-24 1975-12-02 Amerace Corp Cube-corner reflector with non-aligned cube axes and element axes
US3833285A (en) * 1973-05-22 1974-09-03 Amerace Esna Corp Retrodirective reflector visible over wide range of observation angles
USRE29396E (en) 1975-02-18 1977-09-13 Amerace Corporation Pin having nonaligned cube axis and pin axis and bundle of such pins
US4073568A (en) * 1975-11-26 1978-02-14 Ferro Corporation Retroreflector units with three mutually perpendicular surfaces defining a trihedral angle of a rectangular parallelepiped
US4066331A (en) * 1976-06-25 1978-01-03 Beatrice Foods Co. Cube corner type retroreflectors with improved cube corner unit relationships
US4095773A (en) * 1976-11-18 1978-06-20 Beatrice Foods Co. Subassemblies for cube corner type retroreflector molds
US4349598A (en) * 1976-12-01 1982-09-14 Minnesota Mining And Manufacturing Company High incidence angle retroreflective material
US4202600A (en) 1978-04-24 1980-05-13 Avery International Corporation Diced retroreflective sheeting
US4243618A (en) 1978-10-23 1981-01-06 Avery International Corporation Method for forming retroreflective sheeting
US4244683A (en) * 1979-09-20 1981-01-13 Reflexite Corporation Apparatus for compression molding of retroreflective sheeting
US4332847A (en) * 1979-09-20 1982-06-01 Relfexite Corporation Method for compression molding of retroreflective sheeting and sheeting produced thereby
US4486363A (en) * 1982-09-30 1984-12-04 Amerace Corporation Method and apparatus for embossing a precision optical pattern in a resinous sheet
US4478769A (en) * 1982-09-30 1984-10-23 Amerace Corporation Method for forming an embossing tool with an optically precise pattern
US4460449A (en) * 1983-01-03 1984-07-17 Amerace Corporation Apparatus for making a tool
US4633567A (en) * 1983-01-03 1987-01-06 Amerace Corporation Method and apparatus for making a tool
US4588258A (en) * 1983-09-12 1986-05-13 Minnesota Mining And Manufacturing Company Cube-corner retroreflective articles having wide angularity in multiple viewing planes
US4775219A (en) * 1986-11-21 1988-10-04 Minnesota Mining & Manufacturing Company Cube-corner retroreflective articles having tailored divergence profiles
US4938563A (en) * 1986-11-21 1990-07-03 Minnesota Mining And Manufacturing Company High efficiency cube corner retroflective material
GB2212368A (en) * 1987-11-24 1989-07-19 Imarflex Mfg High-frequency energy cooking devices
US4895428A (en) * 1988-07-26 1990-01-23 Minnesota Mining And Manufacturing Company High efficiency retroreflective material
US5122902A (en) * 1989-03-31 1992-06-16 Minnesota Mining And Manufacturing Company Retroreflective articles having light-transmissive surfaces
US5138488A (en) * 1990-09-10 1992-08-11 Minnesota Mining And Manufacturing Company Retroreflective material with improved angularity
DE4236799C2 (en) 1992-10-30 1994-09-08 Gubela Sen Hans Erich Process for producing an impression tool with a cube-shaped surface for producing high-performance triple reflectors
DE4410994C2 (en) 1992-10-30 1996-01-25 Gubela Sen Hans Erich Body or component of a strand-shaped triple reflector and tool element for molding triple reflectors
DE9217179U1 (en) * 1992-12-16 1993-04-22 Gubela Sen., Hans-Erich, 7592 Renchen, De
WO1994018581A1 (en) * 1993-01-30 1994-08-18 Kernforschungszentrum Karlsruhe Gmbh Shaping tool, process for producing it and triple mirror
US6318867B1 (en) 1993-10-20 2001-11-20 3M Innovative Properties Company Conformable cube corner retroreflective sheeting
US5600484A (en) 1993-10-20 1997-02-04 Minnesota Mining And Manufacturing Company Machining techniques for retroreflective cube corner article and method of manufacture
DE69428450T2 (en) 1993-10-20 2002-05-16 Minnesota Mining & Mfg MULTIPLE STRUCTURED CUBE CORNER BODY
US5585164A (en) * 1993-10-20 1996-12-17 Minnesota Mining And Manufacturing Company Dual groove set retroreflective cube corner article and method of manufacture
EP0724738B1 (en) * 1993-10-20 2000-05-10 Minnesota Mining And Manufacturing Company Asymetric cube corner article and method of manufacture
US5450235A (en) 1993-10-20 1995-09-12 Minnesota Mining And Manufacturing Company Flexible cube-corner retroreflective sheeting
US6258443B1 (en) 1994-09-28 2001-07-10 Reflexite Corporation Textured retroreflective prism structures and molds for forming same
AU700594B2 (en) 1995-06-09 1999-01-07 Minnesota Mining And Manufacturing Company Tiled retroreflective sheeting
EP0844056B1 (en) * 1995-07-28 2003-04-09 Nippon Carbide Kogyo Kabushiki Kaisha Microprism matrix
US6010609A (en) * 1995-07-28 2000-01-04 Nippon Carside Kogyo Kabushiki Kaisha Method of making a microprism master mold
US5706132A (en) 1996-01-19 1998-01-06 Minnesota Mining And Manufacturing Company Dual orientation retroreflective sheeting
KR19990082023A (en) * 1996-01-26 1999-11-15 스프레이그 로버트 월터 Laminated laminate mold and its manufacturing method
US6015214A (en) * 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes
US5981032A (en) * 1997-07-02 1999-11-09 3M Innovative Properties Company Retroreflective cube corner sheeting mold and sheeting formed therefrom
CN1105637C (en) * 1997-07-02 2003-04-16 美国3M公司 Cube corner sheeting mold and its mfg. method
KR100574610B1 (en) * 1997-07-02 2006-04-28 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 Retroreflective cube corner sheeting, molds therefor, and methods of making the same
US6253442B1 (en) * 1997-07-02 2001-07-03 3M Innovative Properties Company Retroreflective cube corner sheeting mold and method for making the same

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US6015214A (en) 2000-01-18
BR9710684A (en) 2000-01-11
USRE40455E1 (en) 2008-08-12
AU3285897A (en) 1998-01-05
EP2246182A2 (en) 2010-11-03
AU730149B2 (en) 2001-03-01
US6767102B1 (en) 2004-07-27
CA2256315C (en) 2007-01-16
EP0951383A4 (en) 2001-05-30
EP0951383A1 (en) 1999-10-27
EP2246182A3 (en) 2013-01-09
WO1997045255A1 (en) 1997-12-04
CN1226853A (en) 1999-08-25
USRE40700E1 (en) 2009-04-14

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