BR9917056A - Pelìcula óptica, dispositivo óptico, processos para produzir uma pelìcula óptica e um tambor de replicação mestre, e, tambor para gravar em relevo uma superfìcie em uma pelìcula - Google Patents

Pelìcula óptica, dispositivo óptico, processos para produzir uma pelìcula óptica e um tambor de replicação mestre, e, tambor para gravar em relevo uma superfìcie em uma pelìcula

Info

Publication number
BR9917056A
BR9917056A BR9917056-6A BR9917056A BR9917056A BR 9917056 A BR9917056 A BR 9917056A BR 9917056 A BR9917056 A BR 9917056A BR 9917056 A BR9917056 A BR 9917056A
Authority
BR
Brazil
Prior art keywords
film
optical
drum
optical film
local
Prior art date
Application number
BR9917056-6A
Other languages
English (en)
Inventor
Alan B Campbell
Andrew J Mckee
Sanford Cobb Jr
Wade D Kretman
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of BR9917056A publication Critical patent/BR9917056A/pt

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S385/00—Optical waveguides
    • Y10S385/901—Illuminating or display apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Surface Treatment Of Optical Elements (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

"PELìCULA óPTICA, DISPOSITIVO óPTICO, PROCESSOS PARA PRODUZIR UMA PELìCULA óPTICA E UM TAMBOR DE REPLICAçãO MESTRE, E, TAMBOR PARA GRAVAR EM RELEVO UMA SUPERFìCIE EM UMA PELìCULA". Uma película óptica tem superfície que reduz a ocorrência de defeitos ópticos em um mostrador usando a película. Em particular, a superfície tem características randomizadas que reduzem tais defeitos tais como wet-out, anéis de Newton, e efeitos ondeados. A película tem uma primeira superfície livre de estrutura regular, a primeira superfície tendo uma pluralidade de máximos de altura locais, uma medida característica da primeira superfície tendo um valor randómico dentro de uma faixa predeterminada. A película também tem uma segunda superfície oposta à primeira superfície. Um processo para produzir uma película óptica inclui gravar em relevo um padrão faltando estrutura regular em uma primeira superfície de uma película, em que a primeira superfície tem uma pluralidade de máximos de altura locais, uma medida característica da primeira superfície tendo um valor randómico dentro de uma faixa predeterminada. A medida característica pode ser uma diferença entre as alturas reais e uma altura nominal da superfície da película, separação média entre os máximos de altura locais na superfície, ou ângulo de inclinação da primeira superfície próxima a um máximo de altura local.
BR9917056-6A 1999-02-09 1999-05-26 Pelìcula óptica, dispositivo óptico, processos para produzir uma pelìcula óptica e um tambor de replicação mestre, e, tambor para gravar em relevo uma superfìcie em uma pelìcula BR9917056A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/246,970 US6322236B1 (en) 1999-02-09 1999-02-09 Optical film with defect-reducing surface and method for making same
PCT/US1999/011580 WO2000048037A2 (en) 1999-02-09 1999-05-26 Optical film with defect-reducing surface and method for making same

Publications (1)

Publication Number Publication Date
BR9917056A true BR9917056A (pt) 2002-01-29

Family

ID=22932967

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9917056-6A BR9917056A (pt) 1999-02-09 1999-05-26 Pelìcula óptica, dispositivo óptico, processos para produzir uma pelìcula óptica e um tambor de replicação mestre, e, tambor para gravar em relevo uma superfìcie em uma pelìcula

Country Status (9)

Country Link
US (2) US6322236B1 (pt)
EP (1) EP1159645A1 (pt)
JP (1) JP4480279B2 (pt)
KR (2) KR100623536B1 (pt)
CN (1) CN1161250C (pt)
AU (1) AU4099299A (pt)
BR (1) BR9917056A (pt)
CA (1) CA2359118A1 (pt)
WO (1) WO2000048037A2 (pt)

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