WO2004099823A3 - Light-redirecting optical structures - Google Patents

Light-redirecting optical structures Download PDF

Info

Publication number
WO2004099823A3
WO2004099823A3 PCT/US2004/012675 US2004012675W WO2004099823A3 WO 2004099823 A3 WO2004099823 A3 WO 2004099823A3 US 2004012675 W US2004012675 W US 2004012675W WO 2004099823 A3 WO2004099823 A3 WO 2004099823A3
Authority
WO
WIPO (PCT)
Prior art keywords
microstructures
planar surface
light
optical structures
redirecting optical
Prior art date
Application number
PCT/US2004/012675
Other languages
French (fr)
Other versions
WO2004099823A2 (en
Inventor
Robert B Nilsen
Original Assignee
Reflexite Corp
Robert B Nilsen
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 Reflexite Corp, Robert B Nilsen filed Critical Reflexite Corp
Priority to EP04760573A priority Critical patent/EP1625430A2/en
Priority to CA002523493A priority patent/CA2523493A1/en
Priority to JP2006513290A priority patent/JP2006525553A/en
Publication of WO2004099823A2 publication Critical patent/WO2004099823A2/en
Publication of WO2004099823A3 publication Critical patent/WO2004099823A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer

Abstract

A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an elevated portion to space the peaks away from adjacent optical sheets, surfaces, films, substrates, or other layers to minimize wet-out, Newton’s rings, abrasions, moiré fringes, or other undesirable optical conditions. In other embodiments, an optical film is also provided that includes a first plurality of microstructures having a base, a first side, and a second side, and a second plurality of microstructures having a base, a first side, and a second side, the first side including a first planar surface, and the second side including a second planar surface and a third planar surface.
PCT/US2004/012675 2003-05-02 2004-04-23 Light-redirecting optical structures WO2004099823A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04760573A EP1625430A2 (en) 2003-05-02 2004-04-23 Light-redirecting optical structures
CA002523493A CA2523493A1 (en) 2003-05-02 2004-04-23 Light-redirecting optical structures
JP2006513290A JP2006525553A (en) 2003-05-02 2004-04-23 Optical reorientation optical structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46749403P 2003-05-02 2003-05-02
US60/467,494 2003-05-02

Publications (2)

Publication Number Publication Date
WO2004099823A2 WO2004099823A2 (en) 2004-11-18
WO2004099823A3 true WO2004099823A3 (en) 2005-11-24

Family

ID=33435083

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/012675 WO2004099823A2 (en) 2003-05-02 2004-04-23 Light-redirecting optical structures

Country Status (7)

Country Link
US (1) US7330315B2 (en)
EP (1) EP1625430A2 (en)
JP (1) JP2006525553A (en)
CN (1) CN1833183A (en)
CA (1) CA2523493A1 (en)
TW (1) TW200525233A (en)
WO (1) WO2004099823A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767273B2 (en) 2005-03-09 2010-08-03 3M Innovative Properties Company Apparatus and method for producing two-sided patterned web in registration
US7931841B2 (en) 2005-03-09 2011-04-26 3M Innovative Properties Company Microreplicated article

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006052755A2 (en) * 2004-11-04 2006-05-18 Solid State Opto Limited Long curved wedges in an optical film
GB0427607D0 (en) * 2004-12-16 2005-01-19 Microsharp Corp Ltd Structured optical film
US7416309B2 (en) * 2004-12-30 2008-08-26 3M Innovative Properties Company Optical film having a surface with rounded structures
KR20070111544A (en) 2005-03-09 2007-11-21 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Apparatus and method for making microreplicated article
US20060210770A1 (en) * 2005-03-09 2006-09-21 Nelson John C Microreplicated article with defect-reducing surface
CN101189123B (en) * 2005-04-06 2010-06-09 3M创新有限公司 Optical bodies including rough strippable boundary layers and asymmetric surface structures
US20060250707A1 (en) * 2005-05-05 2006-11-09 3M Innovative Properties Company Optical film having a surface with rounded pyramidal structures
JP2008544303A (en) * 2005-06-09 2008-12-04 ユーブライト オプトロニクス コーポレイション Moire reduction optical substrate having irregular prism structure
US9366875B2 (en) * 2005-06-09 2016-06-14 Ubright Optronics Corporation Light directing film
US20060285332A1 (en) * 2005-06-15 2006-12-21 Goon Wooi K Compact LED package with reduced field angle
KR101201306B1 (en) * 2005-06-29 2012-11-14 엘지디스플레이 주식회사 Back light unit
US20070024994A1 (en) * 2005-07-29 2007-02-01 3M Innovative Properties Company Structured optical film with interspersed pyramidal structures
US20070041722A1 (en) * 2005-08-22 2007-02-22 Fong Gary M Light diffuser
US7712944B2 (en) * 2005-12-06 2010-05-11 Ubright Optronics Corporation Luminance enhancement optical substrates with anti-chatter structures
JP2007163627A (en) * 2005-12-12 2007-06-28 Epson Imaging Devices Corp Illumination device, electro-optical device and electronic apparatus
US7674028B2 (en) 2006-01-13 2010-03-09 Avery Dennison Corporation Light enhancing structures with multiple arrays of elongate features of varying characteristics
US7545569B2 (en) 2006-01-13 2009-06-09 Avery Dennison Corporation Optical apparatus with flipped compound prism structures
US7866871B2 (en) 2006-01-13 2011-01-11 Avery Dennison Corporation Light enhancing structures with a plurality of arrays of elongate features
US7366393B2 (en) * 2006-01-13 2008-04-29 Optical Research Associates Light enhancing structures with three or more arrays of elongate features
US7529048B2 (en) * 2006-03-03 2009-05-05 Ching-Bin Lin Optical film having multi-story prisms and manufacturing process thereof
KR20070108794A (en) * 2006-05-08 2007-11-13 미래나노텍(주) Optical sheet and back light assembly of luquid crystal display equipped with the prism sheet
US7950838B2 (en) * 2006-05-31 2011-05-31 3M Innovative Properties Company Light directing film
KR100796992B1 (en) * 2006-06-02 2008-01-22 (주)비노시스 Preventing from generating stain pattern in three dimensional display
US20070279552A1 (en) * 2006-06-02 2007-12-06 General Electric Company Prism pitch optimization
US7813045B2 (en) 2006-06-02 2010-10-12 Sabic Innovative Plastics Ip B.V. Prism pitch optimization
KR101471213B1 (en) * 2006-06-30 2014-12-12 유브라이트 옵트로닉스 코포레이션 Luminance enhancement optical substrates with optical defect masking structures
JP2008058873A (en) * 2006-09-04 2008-03-13 Fujifilm Corp Optical sheet, lighting apparatus and planar display apparatus using same
JP5151101B2 (en) * 2006-09-12 2013-02-27 ソニー株式会社 Lens film and display device
EP2474846B1 (en) * 2006-10-31 2016-05-11 Modilis Holdings LLC Light outcoupling structure for a lighting device
JP2008145551A (en) * 2006-12-06 2008-06-26 Sony Corp Display device
KR101321909B1 (en) * 2006-12-12 2013-10-25 삼성디스플레이 주식회사 Prism sheet and manufacturing method thereof
US7530721B2 (en) * 2007-04-18 2009-05-12 Skc Haas Display Films Co., Ltd. Double-sided turning film
KR101362729B1 (en) * 2007-05-08 2014-02-12 삼성디스플레이 주식회사 Optical sheet, method of manufacturing the same and display apparatus having the same
JP5200437B2 (en) * 2007-07-18 2013-06-05 大日本印刷株式会社 Optical sheet for surface light source, surface light source device and display device
CN101482671B (en) * 2008-01-08 2011-07-06 璨飞光学（苏州）有限公司 Backlight module with optical film having double-layer structure
CN101981474A (en) * 2008-04-02 2011-02-23 3M创新有限公司 Light directing film and method for making the same
CN102016656A (en) * 2008-04-02 2011-04-13 3M创新有限公司 Methods and systems for fabricating optical films having superimposed features
KR101530995B1 (en) * 2008-09-24 2015-06-25 삼성디스플레이 주식회사 Display apparatus and method of manufacturing optical sheet
TW201015129A (en) * 2008-10-03 2010-04-16 Feng-Li Lin Light guiding plate
US20100128351A1 (en) * 2008-11-21 2010-05-27 3M Innovative Properties Company Curved sided cone structures for controlling gain and viewing angle in an optical film
US8248554B2 (en) * 2009-06-19 2012-08-21 Apple Inc. Edge-lit backlight unit with thin profile
US8794799B2 (en) * 2009-10-30 2014-08-05 Dai Nippon Printing Co., Ltd. Optical sheet, surface light source device and transmission-type display device
JP2013514552A (en) * 2009-12-17 2013-04-25 スリーエム イノベイティブ プロパティズ カンパニー Light redirecting film laminate
WO2011122307A1 (en) * 2010-03-29 2011-10-06 株式会社 きもと Sheet for preventing newton's rings, production method therefor, and touch panel
US8610227B2 (en) * 2010-10-13 2013-12-17 Taiwan Semiconductor Manufacturing Co., Ltd. Formation of embedded micro-lens
BR112013030706A2 (en) 2011-05-31 2016-12-06 3M Innovative Properties Co Manufacturing Methods of Differentially Cured Microstructured Articles
CN103561927B (en) 2011-05-31 2016-07-27 3M创新有限公司 For the method preparing the microstructured tool with discontinuous shape characteristic and the goods manufactured by described instrument
CN102305955B (en) * 2011-08-30 2013-04-24 明基材料有限公司 Phase difference film, roller used for manufacturing phase difference film and manufacturing method for roller
TWI588549B (en) * 2012-01-31 2017-06-21 ３Ｍ新設資產公司 Light directing films and methods of making same
WO2013116104A1 (en) * 2012-01-31 2013-08-08 3M Innovative Properties Company Light directing films and methods of making same
USD735400S1 (en) * 2013-02-09 2015-07-28 SVV Technology Innovations, Inc Optical lens array lightguide plate
TWM497787U (en) * 2014-12-02 2015-03-21 Optivision Technology Inc Optical film having blemish concealing property
JP2018504631A (en) 2014-12-19 2018-02-15 スリーエム イノベイティブ プロパティズ カンパニー Optical structure for redirecting sunlight
DE102016115918A1 (en) * 2016-08-26 2018-03-01 Osram Opto Semiconductors Gmbh Optoelectronic component with a scattering element
US11333895B1 (en) 2019-01-11 2022-05-17 Facebook Technologies, Llc Systems and methods for structured light projector operational safety
WO2021097719A1 (en) * 2019-11-20 2021-05-27 深圳市汇顶科技股份有限公司 Under-screen fingerprint recognition device and system, light guide plate assembly and liquid crystal display screen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984144A (en) * 1987-05-08 1991-01-08 Minnesota Mining And Manufacturing Company High aspect ratio light fixture and film for use therein
WO1996027757A1 (en) * 1995-03-03 1996-09-12 Minnesota Mining And Manufacturing Company Light directing film having variable height structured surface and light directing article constructed therefrom
WO1997031276A1 (en) * 1996-02-21 1997-08-28 Milner Peter J A light-diverting optical element
US5940149A (en) * 1997-12-11 1999-08-17 Minnesota Mining And Manufacturing Company Planar polarizer for LCD projectors
WO2002014909A2 (en) * 2000-08-15 2002-02-21 Reflexite Corporation A light polarizer
WO2002016106A2 (en) * 2000-08-18 2002-02-28 Reflexite Corporation Differentially cured materials and process for forming same

Family Cites Families (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380447A (en) * 1945-07-31 Optical reflecting material
US2474317A (en) * 1949-06-28 Light refracting and transmitting
US2310790A (en) * 1943-02-09 Optical reflecting material
US5816677A (en) * 1905-03-01 1998-10-06 Canon Kabushiki Kaisha Backlight device for display apparatus
US2248638A (en) * 1937-02-22 1941-07-08 Merton Thomas Ralph Sheet material with prismatic surfaces
US3684348A (en) * 1970-09-29 1972-08-15 Rowland Dev Corp Retroreflective material
US3718078A (en) * 1970-12-31 1973-02-27 Polaroid Corp Smoothly granulated optical surface and method for making same
US3712706A (en) * 1971-01-04 1973-01-23 American Cyanamid Co Retroreflective surface
US3853578A (en) * 1972-09-08 1974-12-10 Senri Kikaku Sogo Kk Method of manufacturing decorative boards with depression patterns
GB1462618A (en) * 1973-05-10 1977-01-26 Secretary Industry Brit Reducing the reflectance of surfaces to radiation
US4064433A (en) * 1976-06-30 1977-12-20 K-S-H, Inc. Prismatic lighting panel
US4154219A (en) * 1977-03-11 1979-05-15 E-Systems, Inc. Prismatic solar reflector apparatus and method of solar tracking
US4576850A (en) * 1978-07-20 1986-03-18 Minnesota Mining And Manufacturing Company Shaped plastic articles having replicated microstructure surfaces
US4242723A (en) * 1979-05-14 1980-12-30 Keene Corporation Low level work area lighting system
US4260220A (en) * 1979-06-15 1981-04-07 Canadian Patents And Development Limited Prism light guide having surfaces which are in octature
US4374077A (en) * 1980-02-01 1983-02-15 Minnesota Mining And Manufacturing Company Process for making information carrying discs
US4402571A (en) * 1981-02-17 1983-09-06 Polaroid Corporation Method for producing a surface relief pattern
US4469407A (en) * 1982-02-08 1984-09-04 Polaroid Corporation Laser apodizing filter
US4485123A (en) * 1982-02-12 1984-11-27 Union Carbide Corporation Process for producing textured coatings
US4496216A (en) * 1982-12-30 1985-01-29 Polaroid Corporation Method and apparatus for exposing photosensitive material
US4514345A (en) * 1983-08-23 1985-04-30 The Procter & Gamble Company Method of making a foraminous member
US4542449A (en) * 1983-08-29 1985-09-17 Canadian Patents & Development Limited Lighting panel with opposed 45° corrugations
US4477529A (en) * 1983-12-29 1984-10-16 General Electric Company Photocurable polyfunctional acrylic coating and decorative articles coated therewith
US4732715A (en) * 1985-09-20 1988-03-22 Bausch & Lomb Incorporated Manufacture of polymeric contact lenses
US5056892A (en) * 1985-11-21 1991-10-15 Minnesota Mining And Manufacturing Company Totally internally reflecting thin, flexible film
CA1279783C (en) * 1985-11-21 1991-02-05 Minnesota Mining And Manufacturing Company Totally internally reflecting thin, flexible film
US4874228A (en) * 1987-03-24 1989-10-17 Minnesota Mining And Manufacturing Company Back-lit display
CA1278203C (en) * 1987-04-24 1990-12-27 Lorne A. Whitehead Non-reflective image display device
US4791540A (en) * 1987-05-26 1988-12-13 Minnesota Mining And Manufacturing Company Light fixture providing normalized output
US4888260A (en) * 1987-08-10 1989-12-19 Polaroid Corporation Volume phase reflection holograms and methods for fabricating them
US4874213A (en) * 1987-08-10 1989-10-17 Polaroid Corporation Method of forming volume phase reflection holograms
US4999234A (en) * 1987-08-10 1991-03-12 Polaroid Corporation Holographic optical data storage medium
US4839250A (en) * 1987-08-10 1989-06-13 Polaroid Corporation, Patent Department Method of replicating volume phase reflection holograms
CA1312320C (en) * 1987-11-12 1993-01-05 Makoto Oe Plane light source unit
US4937716A (en) * 1988-05-05 1990-06-26 Tir Systems Ltd Illuminating device having non-absorptive variable transmissivity cover
KR0173110B1 (en) * 1988-12-27 1999-05-01 나가이 야타로 Lens sheet
US5005108A (en) * 1989-02-10 1991-04-02 Lumitex, Inc. Thin panel illuminator
US5183597A (en) * 1989-02-10 1993-02-02 Minnesota Mining And Manufacturing Company Method of molding microstructure bearing composite plastic articles
US5175030A (en) * 1989-02-10 1992-12-29 Minnesota Mining And Manufacturing Company Microstructure-bearing composite plastic articles and method of making
US5093765A (en) * 1990-02-16 1992-03-03 Tosoh Corporation Back lighting device for a panel
US5161041A (en) * 1990-04-26 1992-11-03 Ois Optical Imaging Systems, Inc. Lighting assembly for a backlit electronic display including an integral image splitting and collimating means
CA2068422A1 (en) * 1990-09-12 1992-03-13 Makoto Ohe Surface light source element
US5254390B1 (en) * 1990-11-15 1999-05-18 Minnesota Mining & Mfg Plano-convex base sheet for retroreflective articles
JPH04356015A (en) * 1991-03-22 1992-12-09 Tosoh Corp Back light
US5190370A (en) * 1991-08-21 1993-03-02 Minnesota Mining And Manufacturing Company High aspect ratio lighting element
US5442523A (en) * 1991-08-22 1995-08-15 Tosoh Corporation Backlighting device
US5267062A (en) * 1991-08-26 1993-11-30 Rockwell International Corporation System for backlighting LCD matrices including luminescent dots each followed by and at the focal point of a lens
US5769522A (en) 1991-09-09 1998-06-23 Enplas Corporation Surface light source device
US5186530A (en) * 1991-11-22 1993-02-16 Tir Systems, Ltd. Lighting structure having variable transmissivity internal light guide illumination
CA2088113C (en) * 1992-01-27 1999-03-30 Tomohiro Yokota Light adjusting sheet for a planar lighting device and a planar lighting device and a liquid crystal display using the sheet
JP3006306B2 (en) * 1992-09-16 2000-02-07 インターナショナル・ビジネス・マシーンズ・コーポレイション Optical film and liquid crystal display device using the optical film
KR0168879B1 (en) * 1992-12-25 1999-04-15 기따지마 요시또시 Renticular lens, surface light source and liquid crystal display apparatus
EP0797045B1 (en) * 1993-02-01 1999-05-12 Tosoh Corporation Backlighting device
US6052164A (en) * 1993-03-01 2000-04-18 3M Innovative Properties Company Electroluminescent display with brightness enhancement
US5598280A (en) * 1993-03-23 1997-01-28 Dai Nippon Printing Co., Ltd. Film lens and a surface light source using the same
CA2099067C (en) * 1993-06-23 2001-02-13 Makoto Oe Plane light source unit
US5863113A (en) * 1993-06-22 1999-01-26 Mitsubishi Rayon Co., Ltd. Plane light source unit
US5396350A (en) * 1993-11-05 1995-03-07 Alliedsignal Inc. Backlighting apparatus employing an array of microprisms
JPH07248494A (en) * 1994-03-14 1995-09-26 Hitachi Ltd Liquid crystal display device
US5629784A (en) * 1994-04-12 1997-05-13 Ois Optical Imaging Systems, Inc. Liquid crystal display with holographic diffuser and prism sheet on viewer side
US5780140A (en) * 1996-09-23 1998-07-14 Reflexite Corporation Retroreflective microprismatic material with top face curvature and method of making same
US5565151A (en) * 1994-09-28 1996-10-15 Reflexite Corporation Retroreflective prism structure with windows formed thereon
AU3276395A (en) 1994-10-04 1996-04-26 Minnesota Mining And Manufacturing Company Self-contained lighted marking device
US5579134A (en) * 1994-11-30 1996-11-26 Honeywell Inc. Prismatic refracting optical array for liquid flat panel crystal display backlight
US5855983A (en) * 1995-02-03 1999-01-05 Minnesota Mining And Manufacturing Company Flame retardant ultraviolet cured multi-layered film
US5635278A (en) * 1995-02-03 1997-06-03 Minnesota Mining And Manufacturing Company Scratch resistant optical films and method for producing same
JP3548812B2 (en) * 1995-08-11 2004-07-28 オムロン株式会社 Surface light source device, planar optical element used in the device, and image display device using the device
JP3607759B2 (en) * 1995-09-08 2005-01-05 五洋紙工株式会社 Prism sheet
GB9518802D0 (en) * 1995-09-14 1995-11-15 Scapa Group Plc Tobacco conveyor belt
KR100407101B1 (en) 1995-10-12 2004-02-18 인터내셔널 비지네스 머신즈 코포레이션 Light-transmitting material, planar light source device and liquid crystal display device
US5616069A (en) * 1995-12-19 1997-04-01 Micron Technology, Inc. Directional spray pad scrubber
US5917664A (en) 1996-02-05 1999-06-29 3M Innovative Properties Company Brightness enhancement film with soft cutoff
US5838403A (en) * 1996-02-14 1998-11-17 Physical Optics Corporation Liquid crystal display system with internally reflecting waveguide for backlighting and non-Lambertian diffusing
GB9603575D0 (en) 1996-02-20 1996-04-17 Scapa Group Plc Tobacco conveyor belt
US5919551A (en) * 1996-04-12 1999-07-06 3M Innovative Properties Company Variable pitch structured optical film
US5995690A (en) * 1996-11-21 1999-11-30 Minnesota Mining And Manufacturing Company Front light extraction film for light guiding systems and method of manufacture
DE19708776C1 (en) * 1997-03-04 1998-06-18 Fraunhofer Ges Forschung Anti-reflection coating for glass or plastics panels used in windows, display screens etc.
US5995288A (en) * 1997-04-22 1999-11-30 Dai Nippon Printing Co., Ltd. Optical sheet optical sheet lamination light source device, and light-transmissive type display apparatus
US6280063B1 (en) 1997-05-09 2001-08-28 3M Innovative Properties Company Brightness enhancement article
US5932626A (en) 1997-05-09 1999-08-03 Minnesota Mining And Manufacturing Company Optical product prepared from high index of refraction brominated monomers
US5946991A (en) 1997-09-03 1999-09-07 3M Innovative Properties Company Method for knurling a workpiece
EP1975649A1 (en) 1998-02-18 2008-10-01 Minnesota Mining And Manufacturing Company Optical film
JPH11305011A (en) * 1998-04-22 1999-11-05 Dainippon Printing Co Ltd Lens film and surface light source device
JP2000164016A (en) * 1998-09-24 2000-06-16 Sharp Corp Surface light source device
JP2000210963A (en) 1999-01-26 2000-08-02 Mitsubishi Heavy Ind Ltd Energy beam emitting type continuously molding machine and fiber-reinforced plastic plate-like molding
US6322326B1 (en) * 1999-01-29 2001-11-27 Lee W. Davis Modular condensate pump assembly
US6322236B1 (en) 1999-02-09 2001-11-27 3M Innovative Properties Company Optical film with defect-reducing surface and method for making same
US6277471B1 (en) * 1999-06-18 2001-08-21 Shih Chieh Tang Brightness enhancement film
US6356391B1 (en) * 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
US6356389B1 (en) * 1999-11-12 2002-03-12 Reflexite Corporation Subwavelength optical microstructure light collimating films
US6576887B2 (en) * 2001-08-15 2003-06-10 3M Innovative Properties Company Light guide for use with backlit display
US6862141B2 (en) * 2002-05-20 2005-03-01 General Electric Company Optical substrate and method of making

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984144A (en) * 1987-05-08 1991-01-08 Minnesota Mining And Manufacturing Company High aspect ratio light fixture and film for use therein
WO1996027757A1 (en) * 1995-03-03 1996-09-12 Minnesota Mining And Manufacturing Company Light directing film having variable height structured surface and light directing article constructed therefrom
WO1997031276A1 (en) * 1996-02-21 1997-08-28 Milner Peter J A light-diverting optical element
US5940149A (en) * 1997-12-11 1999-08-17 Minnesota Mining And Manufacturing Company Planar polarizer for LCD projectors
WO2002014909A2 (en) * 2000-08-15 2002-02-21 Reflexite Corporation A light polarizer
WO2002016106A2 (en) * 2000-08-18 2002-02-28 Reflexite Corporation Differentially cured materials and process for forming same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767273B2 (en) 2005-03-09 2010-08-03 3M Innovative Properties Company Apparatus and method for producing two-sided patterned web in registration
US7931841B2 (en) 2005-03-09 2011-04-26 3M Innovative Properties Company Microreplicated article
US8968629B2 (en) 2005-03-09 2015-03-03 3M Innovative Properties Company Apparatus and method for producing two-sided patterned web in registration

Also Published As

Publication number Publication date
JP2006525553A (en) 2006-11-09
WO2004099823A2 (en) 2004-11-18
US20040246599A1 (en) 2004-12-09
EP1625430A2 (en) 2006-02-15
TW200525233A (en) 2005-08-01
US7330315B2 (en) 2008-02-12
CN1833183A (en) 2006-09-13
CA2523493A1 (en) 2004-11-18

Similar Documents

Publication Publication Date Title
WO2004099823A3 (en) Light-redirecting optical structures
WO2001035128A3 (en) Subwavelength optical microstructure light collimating films
US7142767B2 (en) Scratch-resistant light directing films
KR940022157A (en) Film Lens and Surface Light Source Using It
TW200516277A (en) Light guide plate and backlight assembly having the same
ATE338013T1 (en) CLEAR COATING SYSTEM RESISTANT TO TARNISHING
TW200712567A (en) Structured optical film with interspersed pyramidal structures
WO2009041279A1 (en) Uneven-surface film and light diffusing sheet
WO2002014909A8 (en) A light polarizer
TW200742873A (en) Optical sheet and backlight assembly having the same
ATE235384T1 (en) DECORATIVE FILM
WO2010013938A3 (en) Optical sheet and preparation method thereof
EP2280296A3 (en) Retroreflective film
EP1178075A4 (en) Polyester film composite, light diffuser plate, and utilization thereof
TW200641405A (en) Light directing film
WO2003082598A3 (en) Optically variable security device
WO2006052755A3 (en) Long curved wedges in an optical film
JP2008527408A5 (en)
MY134105A (en) Polyester film for releasing a polarizing plate
TW200632449A (en) Diffusion sheet with improved luminance and method of manufacturing the same
PL363775A1 (en) Embossed decorative boards
EP1962114A9 (en) Optical multi-layer filter with periodical variation of the high and low refractive index and optical instrument
KR101320300B1 (en) Pressure-sensitive adhesive sheet with air-eliminable channels
EP1323437A3 (en) Adhesive sheet for application on skin and process for production thereof
EP1160078A4 (en) Laminated material and method of bending laminated material

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2523493

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2006513290

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 20048150874

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2004760573

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004760573

Country of ref document: EP