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WO2013050853A3 - Method of making a lightguide - Google Patents

Method of making a lightguide Download PDF

Info

Publication number
WO2013050853A3
WO2013050853A3 PCT/IB2012/001951 IB2012001951W WO2013050853A3 WO 2013050853 A3 WO2013050853 A3 WO 2013050853A3 IB 2012001951 W IB2012001951 W IB 2012001951W WO 2013050853 A3 WO2013050853 A3 WO 2013050853A3
Authority
WO
WIPO (PCT)
Prior art keywords
lightguide
making
applying
pattern
light
Prior art date
Application number
PCT/IB2012/001951
Other languages
French (fr)
Other versions
WO2013050853A2 (en
Inventor
Paul Blair
Joe Hsieh
Navin Suyal
Original Assignee
Exxelis Global Limited
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 Exxelis Global Limited filed Critical Exxelis Global Limited
Publication of WO2013050853A2 publication Critical patent/WO2013050853A2/en
Publication of WO2013050853A3 publication Critical patent/WO2013050853A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0035—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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

A method of making a lightguide, comprising the steps of (a) providing a lightguide film (1) having upper (7) and lower (8) surfaces allowing substantial total internal reflection of light therebetween; (b) applying a viscous and curable material (9) at least to the lower surface in a pattern; (c) applying a surface texture to the material; and (d) curing the material, the resulting surface textured pattern on the base of the lightguide being capable of extracting light from the lightguide is disclosed.
PCT/IB2012/001951 2011-10-04 2012-10-02 Method of making a lightguide WO2013050853A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1117041.2A GB2495477A (en) 2011-10-04 2011-10-04 Method of making a lightguide
GB1117041.2 2011-10-04

Publications (2)

Publication Number Publication Date
WO2013050853A2 WO2013050853A2 (en) 2013-04-11
WO2013050853A3 true WO2013050853A3 (en) 2013-09-12

Family

ID=45035077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/001951 WO2013050853A2 (en) 2011-10-04 2012-10-02 Method of making a lightguide

Country Status (2)

Country Link
GB (1) GB2495477A (en)
WO (1) WO2013050853A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11681154B2 (en) 2017-12-15 2023-06-20 Lg Chem, Ltd. Wearable device including a plastic lens substrate
KR20200037718A (en) * 2018-10-01 2020-04-09 코닝 인코포레이티드 Method of fabricating light guide plate, light guide plate fabricated by the same and lighting device having the same
US11112559B2 (en) 2018-10-01 2021-09-07 Corning Incorporated Method of fabricating light guide plate, light guide plate fabricated thereby, and illumination device having the same
EP4478131A1 (en) * 2023-06-12 2024-12-18 The Swatch Group Research and Development Ltd Method for producing light needles by replicating microstructures

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262619A (en) * 1991-11-30 1993-06-23 Meitaku Syst Kk Edge light panel and its production
US6480307B1 (en) * 1919-07-02 2002-11-12 Keun-Chang Yang Plane light source unit and method for manufacturing holographic light-guide used for the same
WO2005001892A2 (en) * 2003-06-23 2005-01-06 Solid State Opto Limited Light emitting panel assemblies
US20050190575A1 (en) * 2004-03-01 2005-09-01 Miyakawa Corporation Optical element with light extracting dots and display device using same
US20070279935A1 (en) * 2006-05-31 2007-12-06 3M Innovative Properties Company Flexible light guide
GB2460179A (en) * 2008-05-23 2009-11-25 Design Led Products Ltd Light-guide with light extraction features

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630895A (en) 1985-06-06 1986-12-23 Motorola, Inc. LCD lightguide
JP3251452B2 (en) 1995-01-31 2002-01-28 シャープ株式会社 Backlight device for liquid crystal display device
US6623667B2 (en) 2001-02-28 2003-09-23 3M Innovative Properties Company Method for continuous fabrication of structured surface light guides
KR20060002446A (en) 2004-07-02 2006-01-09 엘지전자 주식회사 Prism sheet of LCD and backlight unit
JP2006154185A (en) * 2004-11-29 2006-06-15 Toppan Printing Co Ltd Method for producing light guide plate having fine uneven pattern and light guide plate
US7543974B2 (en) 2007-03-06 2009-06-09 Skc Haas Display Films Co., Ltd. Light redirecting film having variable thickness
WO2009051203A1 (en) * 2007-10-19 2009-04-23 Mitsubishi Rayon Co., Ltd., Light guide member, method for producing the same and surface light source device using the same
KR101274711B1 (en) * 2008-12-23 2013-06-12 엘지디스플레이 주식회사 Light Guiding Panel, method fof Manufacturing the same and Backlight Unit with Using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480307B1 (en) * 1919-07-02 2002-11-12 Keun-Chang Yang Plane light source unit and method for manufacturing holographic light-guide used for the same
GB2262619A (en) * 1991-11-30 1993-06-23 Meitaku Syst Kk Edge light panel and its production
WO2005001892A2 (en) * 2003-06-23 2005-01-06 Solid State Opto Limited Light emitting panel assemblies
US20050190575A1 (en) * 2004-03-01 2005-09-01 Miyakawa Corporation Optical element with light extracting dots and display device using same
US20070279935A1 (en) * 2006-05-31 2007-12-06 3M Innovative Properties Company Flexible light guide
GB2460179A (en) * 2008-05-23 2009-11-25 Design Led Products Ltd Light-guide with light extraction features

Also Published As

Publication number Publication date
GB2495477A (en) 2013-04-17
WO2013050853A2 (en) 2013-04-11
GB201117041D0 (en) 2011-11-16

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