CA2010201A1 - Retroreflective articles having light-transmissive surfaces - Google Patents

Retroreflective articles having light-transmissive surfaces

Info

Publication number
CA2010201A1
CA2010201A1 CA2010201A CA2010201A CA2010201A1 CA 2010201 A1 CA2010201 A1 CA 2010201A1 CA 2010201 A CA2010201 A CA 2010201A CA 2010201 A CA2010201 A CA 2010201A CA 2010201 A1 CA2010201 A1 CA 2010201A1
Authority
CA
Canada
Prior art keywords
elements
cube
retroreflective
corners
curved
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
CA2010201A
Other languages
French (fr)
Other versions
CA2010201C (en
Inventor
Gerald M. Benson
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23294950&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2010201(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of CA2010201A1 publication Critical patent/CA2010201A1/en
Application granted granted Critical
Publication of CA2010201C publication Critical patent/CA2010201C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

Retroreflective elements, such as cube-corner elements or right triangular prisms containing cube-corners, are arranged on articles to define separation surfaces between the elements; in another embodiment, the elements are truncated cube-corners incorporating similar surfaces on the elements themselves. If the surfaces are transparent they will transmit light through the article, rendering it partially transparent and partially retroreflective. The surfaces may be flat or curved. Standard grooving techniques may be employed to construct the elements, using mold cutting tools having flattened or curved tips instead of V-shaped tips; alternatively, electroformed molds may be lapped to include the shape required to produce surfaces. The elements and surfaces may be embodied in sheeting materials or internally illuminated signs.
CA002010201A 1989-03-31 1990-02-16 Retroreflective articles having light-transmissive surfaces Expired - Fee Related CA2010201C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/331,689 US5122902A (en) 1989-03-31 1989-03-31 Retroreflective articles having light-transmissive surfaces
US07/331,689 1989-03-31

Publications (2)

Publication Number Publication Date
CA2010201A1 true CA2010201A1 (en) 1990-09-30
CA2010201C CA2010201C (en) 2000-11-07

Family

ID=23294950

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002010201A Expired - Fee Related CA2010201C (en) 1989-03-31 1990-02-16 Retroreflective articles having light-transmissive surfaces

Country Status (8)

Country Link
US (1) US5122902A (en)
EP (1) EP0390344B1 (en)
JP (1) JP3046607B2 (en)
KR (1) KR0185673B1 (en)
AT (1) ATE129077T1 (en)
AU (1) AU616100B2 (en)
CA (1) CA2010201C (en)
DE (1) DE69022870T2 (en)

Families Citing this family (120)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237449A (en) * 1991-01-29 1993-08-17 Nelson Optics Company, Inc. Biased lenticular sign system
DE69213234T2 (en) * 1991-06-13 1997-03-06 Minnesota Mining & Mfg RETROREFLECTIVE POLARIZER
US5415911A (en) * 1992-01-16 1995-05-16 Stimsonite Corporation Photoluminescent retroreflective sheeting
US5303492A (en) * 1992-10-21 1994-04-19 Dan Nishio Retroflective road sign having translucent border around legend segments
US5452532A (en) * 1992-10-21 1995-09-26 Nishio; Dan Customizable sign having translucent border around retroreflective message
CA2171744A1 (en) * 1993-10-20 1995-04-27 Gerald M. Benson Directly machined raised structure retroreflective cube corner article and method of manufacture
US5557836A (en) * 1993-10-20 1996-09-24 Minnesota Mining And Manufacturing Company Method of manufacturing a cube corner article
US5585164A (en) * 1993-10-20 1996-12-17 Minnesota Mining And Manufacturing Company Dual groove set retroreflective cube corner article and method of manufacture
US5759468A (en) 1993-10-20 1998-06-02 Minnesota Mining And Manufacturing Company Raised zone retroreflective cube corner article and method of manufacture
WO1995011465A2 (en) * 1993-10-20 1995-04-27 Minnesota Mining And Manufacturing Company Asymetric cube corner article and method of manufacture
US5600484A (en) * 1993-10-20 1997-02-04 Minnesota Mining And Manufacturing Company Machining techniques for retroreflective cube corner article and method of manufacture
WO1995011945A1 (en) 1993-10-29 1995-05-04 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesives having microstructured surfaces
US6440880B2 (en) 1993-10-29 2002-08-27 3M Innovative Properties Company Pressure-sensitive adhesives having microstructured surfaces
US5565151A (en) * 1994-09-28 1996-10-15 Reflexite Corporation Retroreflective prism structure with windows formed thereon
US6258443B1 (en) 1994-09-28 2001-07-10 Reflexite Corporation Textured retroreflective prism structures and molds for forming same
AU3555095A (en) * 1994-09-28 1996-04-19 Reflexite Corporation Retroreflective tilted prism structure
DE69617008T2 (en) * 1995-06-09 2002-07-11 Minnesota Mining & Mfg CUBIC-LITTLE BODY WITH EXTENDED OPENING ANGLE IN ONE OR MORE AREAS
US5948488A (en) * 1996-04-30 1999-09-07 3M Innovative Properties Company Glittering cube-corner article
US6015214A (en) 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes
US5734501A (en) * 1996-11-01 1998-03-31 Minnesota Mining And Manufacturing Company Highly canted retroreflective cube corner article
US6021559A (en) * 1996-11-01 2000-02-08 3M Innovative Properties Company Methods of making a cube corner article master mold
US6197397B1 (en) * 1996-12-31 2001-03-06 3M Innovative Properties Company Adhesives having a microreplicated topography and methods of making and using same
US6656566B1 (en) 1997-04-15 2003-12-02 3M Innovative Properties Company Retroreflective luminescent articles
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
AU6960898A (en) * 1997-09-25 1999-04-12 Minnesota Mining And Manufacturing Company Dual use reflective article
JP3580999B2 (en) * 1997-11-17 2004-10-27 日本カーバイド工業株式会社 Triangular pyramidal cube corner retroreflective sheet
US6036322A (en) 1997-12-01 2000-03-14 Reflexite Corporation Multi-orientation retroreflective structure
US6282026B1 (en) 1998-02-05 2001-08-28 3M Innovative Properties Company Retroreflectors having two optical surfaces and varying retroreflectivity
US6045230A (en) * 1998-02-05 2000-04-04 3M Innovative Properties Company Modulating retroreflective article
US6287670B1 (en) 1999-01-11 2001-09-11 3M Innovative Properties Company Cube corner cavity based retroreflectors and methods for making same
US6280822B1 (en) * 1999-01-11 2001-08-28 3M Innovative Properties Company Cube corner cavity based retroeflectors with transparent fill material
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
US6524675B1 (en) 1999-05-13 2003-02-25 3M Innovative Properties Company Adhesive-back articles
KR20010018578A (en) * 1999-08-20 2001-03-05 성재갑 Transformed Cube Corner Retroreflector Frustrated-Total-Internal-Reflecting Incident Rays and Method of Processing thereof
KR100373209B1 (en) * 1999-09-11 2003-02-25 주식회사 엘지화학 Retroreflective article
JP2003511713A (en) 1999-10-04 2003-03-25 スリーエム イノベイティブ プロパティズ カンパニー An improved continuous process for creating glittering cube corner sheets
JP3975039B2 (en) 1999-12-13 2007-09-12 日本カーバイド工業株式会社 Triangular pyramid cube corner retroreflective element
EP1271189A4 (en) 2000-01-31 2010-02-24 Nippon Carbide Kogyo Kk Triangular pyramidal cube corner retroreflection element
US8728610B2 (en) 2000-02-25 2014-05-20 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
US6325515B1 (en) 2000-03-21 2001-12-04 3M Innovative Properties Company Cube corner retroreflective article with enhanced pigmentation
JP4028155B2 (en) * 2000-04-11 2007-12-26 日本カーバイド工業株式会社 Fluorescent retroreflective sheet
US6767106B2 (en) * 2000-05-08 2004-07-27 Lexalite International Corporation Edge-lit luminaire having prismatic optical control
DE60236297D1 (en) * 2001-06-11 2010-06-17 Avery Dennison Corp REPLACEMENTS WITH CONTROLLED DIVERGENCE MANUFACTURED BY THE GROOVING METHOD
US6931665B2 (en) * 2001-07-30 2005-08-23 3M Innovative Properties Company Vapor permeable retroreflective garment
US6926725B2 (en) * 2002-04-04 2005-08-09 Rex Medical, L.P. Thrombectomy device with multi-layered rotational wire
US6935756B2 (en) * 2002-06-11 2005-08-30 3M Innovative Properties Company Retroreflective articles having moire-like pattern
US6843571B2 (en) 2002-06-11 2005-01-18 3M Innovative Properties Company Methods of making a master and replicas thereof
CA2491668C (en) * 2002-07-08 2010-07-20 Nippon Carbide Kogyo Kabushiki Kaisha Internally illuminated signs
EP1550991A4 (en) 2002-10-08 2008-11-19 Nippon Carbide Kogyo Kk Recursive-reflection display device
US7156527B2 (en) 2003-03-06 2007-01-02 3M Innovative Properties Company Lamina comprising cube corner elements and retroreflective sheeting
US20070006493A1 (en) * 2003-05-12 2007-01-11 Arnold Eberwein Illuminated license plate for vehicles and vehicle provided with the same
US6916110B2 (en) * 2003-05-29 2005-07-12 Rene C. Batiste Flame simulating devices for use with lights and method thereof
EP1512578A1 (en) 2003-09-02 2005-03-09 3M Innovative Properties Company Lit and retro-reflective optical device
US20070031641A1 (en) * 2003-09-05 2007-02-08 3M Innovative Properties Company License plate for back illumination and method for making same
US7142767B2 (en) * 2003-12-31 2006-11-28 3M Innovative Properties Company Scratch-resistant light directing films
EP1584518B1 (en) * 2004-04-07 2007-10-17 3M Innovative Properties Company License plate assembly comprising light source and backlit license plate
KR100586406B1 (en) * 2004-06-11 2006-06-08 김현대 Method for manufacturing a cube-corner typed retroreflective element and the said retroreflective element
US20060080874A1 (en) * 2004-10-18 2006-04-20 Arnold Eberwein Dynamic message sign
FR2880540B1 (en) * 2005-01-13 2008-07-11 Aventis Pharma Sa USE OF PURINE DERIVATIVES AS INHIBITORS OF HSP90 PROTEIN
KR20070114810A (en) * 2005-03-12 2007-12-04 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Illumination devices and methods for making the same
JP2007007988A (en) * 2005-06-30 2007-01-18 Three M Innovative Properties Co Minute structure and method for producing the same
US7537374B2 (en) * 2005-08-27 2009-05-26 3M Innovative Properties Company Edge-lit backlight having light recycling cavity with concave transflector
US7815355B2 (en) * 2005-08-27 2010-10-19 3M Innovative Properties Company Direct-lit backlight having light recycling cavity with concave transflector
KR101298786B1 (en) * 2005-08-27 2013-08-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Illumination assembly and system
US20070047228A1 (en) * 2005-08-27 2007-03-01 3M Innovative Properties Company Methods of forming direct-lit backlights having light recycling cavity with concave transflector
DE102005061749A1 (en) * 2005-12-21 2007-07-05 Giesecke & Devrient Gmbh Optically variable security element for making valuable objects safe has an achromatic reflecting micro-structure taking the form of a mosaic made from achromatic reflecting mosaic elements
GB2433637A (en) * 2005-12-21 2007-06-27 3M Innovative Properties Co Semi-transparent retroreflective material
US7545569B2 (en) 2006-01-13 2009-06-09 Avery Dennison Corporation Optical apparatus with flipped compound prism structures
US7674028B2 (en) 2006-01-13 2010-03-09 Avery Dennison Corporation Light enhancing structures with multiple arrays of elongate features of varying characteristics
US7366393B2 (en) * 2006-01-13 2008-04-29 Optical Research Associates Light enhancing structures with three or more arrays of elongate features
US7866871B2 (en) 2006-01-13 2011-01-11 Avery Dennison Corporation Light enhancing structures with a plurality of arrays of elongate features
GB0602105D0 (en) * 2006-02-02 2006-03-15 3M Innovative Properties Co License plate assembly
US20080027199A1 (en) 2006-07-28 2008-01-31 3M Innovative Properties Company Shape memory polymer articles with a microstructured surface
US7951319B2 (en) * 2006-07-28 2011-05-31 3M Innovative Properties Company Methods for changing the shape of a surface of a shape memory polymer article
US8525402B2 (en) 2006-09-11 2013-09-03 3M Innovative Properties Company Illumination devices and methods for making the same
US7481563B2 (en) * 2006-09-21 2009-01-27 3M Innovative Properties Company LED backlight
US8581393B2 (en) * 2006-09-21 2013-11-12 3M Innovative Properties Company Thermally conductive LED assembly
US20080295327A1 (en) * 2007-06-01 2008-12-04 3M Innovative Properties Company Flexible circuit
CN101344674B (en) * 2007-07-12 2010-11-17 颖台科技股份有限公司 Optical film and manufacturing method thereof, and backlight module using the same
DE102007036468A1 (en) 2007-07-23 2009-01-29 Evonik Röhm Gmbh Rear element for a motor vehicle comprising a lighting unit
US20090027775A1 (en) * 2007-07-26 2009-01-29 Nilsen Robert B Multiple layer reflective tag
JP5249715B2 (en) * 2007-11-01 2013-07-31 日本カーバイド工業株式会社 Cube-corner retroreflective prism sheet and internally illuminated retroreflective sign using the same
US20090214828A1 (en) * 2008-02-26 2009-08-27 Vicki Herzl Watkins Blunt tip prism film and methods for making the same
WO2010124158A1 (en) 2009-04-24 2010-10-28 3M Innovative Properties Company Light assembly
WO2011011377A1 (en) 2009-07-21 2011-01-27 3M Innovative Properties Company Light assembly
JP5385040B2 (en) * 2009-07-27 2014-01-08 株式会社エス・ケー・ジー Light guide plate manufacturing apparatus, light guide plate manufacturing method, and light guide plate
ES2694882T3 (en) * 2009-08-25 2018-12-27 Avery Dennison Corporation Retroreflective article comprising retroreflective prism elements and an engraved reflective metal coating
DE102009028937A1 (en) 2009-08-27 2011-03-03 Evonik Röhm Gmbh Sign for license plates comprising at least one translucent, retroreflective layer
EP2500118A4 (en) 2009-11-13 2015-06-24 Sumitomo Light Metal Ind Plate material having concave/convex sections, and laminate structure and vehicle panel using said plate material
US9581739B2 (en) 2009-12-21 2017-02-28 3M Innovative Properties Company Transflective articles and light assemblies
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
JP6074128B2 (en) * 2010-04-15 2017-02-01 デクセリアルズ株式会社 Optical body and manufacturing method thereof, solar shading member, window material, interior member and fitting
JP5868858B2 (en) 2010-09-08 2016-02-24 株式会社Uacj Plate material having concavo-convex part, vehicle panel and laminated structure using the same
US8927089B2 (en) 2011-01-11 2015-01-06 Uacj Corporation Sheet material having a concave-convex part, and a vehicle panel and laminated structure using the same
US8920908B2 (en) 2011-01-17 2014-12-30 Uacj Corporation Sheet material having a concave-convex part, and vehicle panel and laminated structure using the same
KR101985053B1 (en) 2012-03-27 2019-05-31 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Photovoltaic modules comprising light directing mediums and methods of making the same
US9719206B2 (en) * 2012-09-14 2017-08-01 Under Armour, Inc. Apparel with heat retention layer and method of making the same
USD765427S1 (en) 2013-03-11 2016-09-06 Under Armour, Inc. Upper body garment with areas of interior surface ornamentation
USD758745S1 (en) 2013-03-11 2016-06-14 Under Armour, Inc. Lower body garment with outer surface ornamentation
USD766599S1 (en) 2013-03-11 2016-09-20 Under Armour, Inc. Lower body garment with inner surface ornamentation
WO2014174693A1 (en) * 2013-04-24 2014-10-30 株式会社アスカネット Stereoscopic image display device and stereoscopic image display method
EP3003704B1 (en) 2013-06-06 2020-09-02 3M Innovative Properties Company Method for preparing structured adhesive articles
CN105307805B (en) 2013-06-06 2018-05-15 3M创新有限公司 The method of preparation structure laminating adhesive articles
KR20160014765A (en) 2013-06-06 2016-02-11 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Method for preparing structured adhesive articles
EP3020074A1 (en) 2013-07-09 2016-05-18 3M Innovative Properties Company Reflecting films with rounded microstructures for use in solar modules
BR112016006705A2 (en) * 2013-09-27 2017-08-01 3M Innovative Properties Co double sided structured film articles
US20170009105A1 (en) 2014-02-03 2017-01-12 3M Innovative Properties Company Methods of preparing surface modified pressure sensitive adhesive articles
KR102444532B1 (en) 2014-12-23 2022-09-16 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Double Sided Multilayer Adhesive
US20160245502A1 (en) * 2015-02-23 2016-08-25 Cambridge International Inc. Lighted architectural panel system
WO2016144313A1 (en) * 2015-03-09 2016-09-15 Orafol Americas Inc. Methods for forming partial retroreflector tooling and sheeting and devices thereof
EP3362744A4 (en) 2015-10-12 2019-06-12 3M Innovative Properties Company Light redirecting film useful with solar modules
JP6878763B2 (en) * 2015-12-24 2021-06-02 市光工業株式会社 Inner lens and vehicle lighting equipment
WO2017156448A1 (en) * 2016-03-11 2017-09-14 Mirraviz, Inc. Customized reflection profiles for retro-reflective display system optimization
WO2017198499A1 (en) 2016-05-19 2017-11-23 Basf Coatings Gmbh Photovoltaic module
EP3583453A4 (en) 2017-02-14 2021-03-10 3M Innovative Properties Company Security articles comprising groups of microstructures made by end milling
WO2019046403A1 (en) * 2017-08-29 2019-03-07 Avery Dennison Corporation Retroreflective sheeting for projector-based display system
US11572492B2 (en) 2018-06-07 2023-02-07 3M Innovative Properties Company Microstructured release liners for selective transfer of ink to film
WO2020028230A2 (en) 2018-07-29 2020-02-06 Bvw Holding Ag Patterned surfaces with suction
EP3667738A1 (en) 2018-12-12 2020-06-17 BASF Coatings GmbH Photovoltaic module
CN114502990B (en) 2019-08-05 2024-03-29 艾利丹尼森公司 Retroreflective film comprising fluorescent dye

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818500A (en) * 1953-07-03 1957-12-31 Holophane Co Inc Prismatic reflectors
DE1770933U (en) * 1957-10-17 1958-07-24 Westfaelische Metall Industrie REAR REFLECTORS USED AS LIGHT WINDOWS, IN PARTICULAR FOR MOTOR VEHICLE REAR LIGHTS.
US3005382A (en) * 1957-11-25 1961-10-24 Minnesota Mining & Mfg Reflex-reflecting sheet materials
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
US3712706A (en) * 1971-01-04 1973-01-23 American Cyanamid Co Retroreflective surface
AU4272272A (en) * 1971-06-23 1973-11-29 Joseph Lucas (Industries) Limited Combined lens and reflector fora vehicle lamp
US3790431A (en) * 1972-01-24 1974-02-05 Minnesota Mining & Mfg Light-transmissive retroreflective sheeting
US3833285A (en) * 1973-05-22 1974-09-03 Amerace Esna Corp Retrodirective reflector visible over wide range of observation angles
US4005538A (en) * 1973-11-23 1977-02-01 Minnesota Mining And Manufacturing Company Internally illuminated retroreflective signs
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
US4025159A (en) * 1976-02-17 1977-05-24 Minnesota Mining And Manufacturing Company Cellular retroreflective sheeting
AU515650B2 (en) * 1976-07-19 1981-04-16 David Boyd Michael Energy reflecting members and screens made therefrom
US4349598A (en) * 1976-12-01 1982-09-14 Minnesota Mining And Manufacturing Company High incidence angle retroreflective material
IT7821682A0 (en) * 1977-03-30 1978-03-28 Bayer Ag TRIPLE MIRROR SHEET.
US4243618A (en) * 1978-10-23 1981-01-06 Avery International Corporation Method for forming retroreflective sheeting
EP0018798B1 (en) * 1978-11-08 1983-06-08 LUCAS INDUSTRIES public limited company Reflex reflector device
US4588258A (en) * 1983-09-12 1986-05-13 Minnesota Mining And Manufacturing Company Cube-corner retroreflective articles having wide angularity in multiple viewing planes
US4672089A (en) * 1984-08-10 1987-06-09 Amerace Corporation Retroreflective sheeting
CA1279783C (en) * 1985-11-21 1991-02-05 Minnesota Mining And Manufacturing Company Totally internally reflecting thin, flexible film
US4775219A (en) * 1986-11-21 1988-10-04 Minnesota Mining & Manufacturing Company Cube-corner retroreflective articles having tailored divergence profiles

Also Published As

Publication number Publication date
KR0185673B1 (en) 1999-05-15
ATE129077T1 (en) 1995-10-15
EP0390344A3 (en) 1991-01-09
EP0390344A2 (en) 1990-10-03
EP0390344B1 (en) 1995-10-11
DE69022870T2 (en) 1996-05-23
JPH02285301A (en) 1990-11-22
JP3046607B2 (en) 2000-05-29
DE69022870D1 (en) 1995-11-16
KR900014904A (en) 1990-10-25
AU4977590A (en) 1990-10-04
US5122902A (en) 1992-06-16
CA2010201C (en) 2000-11-07
AU616100B2 (en) 1991-10-17

Similar Documents

Publication Publication Date Title
CA2010201A1 (en) Retroreflective articles having light-transmissive surfaces
BR9400370A (en) Process for making a retro-reflective article
EP0250165A3 (en) Wide-angle-reflective cube-corner retroreflective sheeting
DE68908834D1 (en) Glass / glass ceramic plastic alloy objects.
AU7122998A (en) Transparent beads and their production method
DE69013287D1 (en) MANUFACTURING PROCESS FOR A TRANSPARENT POLYMER LENS WITH MODULATED BREAKING INDEX.
US4310219A (en) Light diffusing surface structure for a light guide in an information display
BR8606241A (en) DIRECT MOLDING PROCESS FOR MANUFACTURING A PLASTIC ITEM WITH PHOTOCHROMIC PROPERTIES
CA2215153A1 (en) Ornamental carrier with flashlight-type eyes
DE68915811D1 (en) Plastic lens with high refractive power and process for its production.
NO934000L (en) Translucent body of transparent material, for roadways
AU612083B2 (en) Collimated light optrode
BR8902738A (en) PROCESS TO PRODUCE A HIGHLY HARD TRANSPARENT RESIN, A RANGE MATERIAL, AN OPTICAL LENS AND A MONOMER
DE3682031D1 (en) COMPOSITIONS FOR THE PRODUCTION OF POLYMERS WITH A HIGH BREAKING INDEX AND LOW YELLOW COLORING.
DE69023082D1 (en) Optical logic arrangement with one output.
FR2629075B1 (en) PROCESS FOR THE MANUFACTURE OF HIGH PERFORMANCE MAGNESIUM ALUMINATE SPINEL PARTS, PARTICULARLY TRANSPARENT PARTS IN THE INFRARED AND VISIBLE FIELD
CA1274639C (en) Hydrogel fundamental material
IT1224173B (en) MINIBOX IN LIGHT MATERIAL, SUITABLE AND TOTALLY DISAPPEARABLE, FOR THE RECOVERY OF VEHICLES AND OTHER USES
AU6871191A (en) Discriminating spectroscopy of the optical profile of a transparent object using frustrated vanishing field scanning optical microscopy
EP0240182A3 (en) A lens
IT1262107B (en) PROCEDURE FOR THE PRODUCTION OF THERMOPLASTIC ELEMENTS SERIGRAPHED WITH TRANSPARENT PARTS THAT CAN BE ILLUMINATED FROM THE BACK
DE69602726T2 (en) GLASS WITH HIGH BREAKING INDEX
JPS6458529A (en) Preparation of decorative molded product
BR8804880A (en) OPTICALLY TRANSPARENT AND MATTE VINYL POLYCHLORIDE ARTICLE, OPTICALLY TRANSPARENT POLYMERIC COMPOSITION AND PROCESS FOR THE PRODUCTION OF AN OPTICALLY TRANSPARENT AND MATTE POLYMERIC ARTICLE
DE3877586D1 (en) SCATTERING SYMMETERIZATION IN A MULTIPLE-MODE RING LASER GYRO.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed