KR20200138758A - 쐐기형 도광체 - Google Patents

쐐기형 도광체 Download PDF

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Publication number
KR20200138758A
KR20200138758A KR1020207030079A KR20207030079A KR20200138758A KR 20200138758 A KR20200138758 A KR 20200138758A KR 1020207030079 A KR1020207030079 A KR 1020207030079A KR 20207030079 A KR20207030079 A KR 20207030079A KR 20200138758 A KR20200138758 A KR 20200138758A
Authority
KR
South Korea
Prior art keywords
wedge
light
shaped
light guide
display
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.)
Ceased
Application number
KR1020207030079A
Other languages
English (en)
Korean (ko)
Inventor
니콜라스 에이 존슨
로버트 엠 엠몬스
Original Assignee
쓰리엠 이노베이티브 프로퍼티즈 컴파니
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 쓰리엠 이노베이티브 프로퍼티즈 컴파니 filed Critical 쓰리엠 이노베이티브 프로퍼티즈 컴파니
Publication of KR20200138758A publication Critical patent/KR20200138758A/ko
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
    • G02B6/0033—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
    • G02B6/0033—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
    • 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)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Light Guides In General And Applications Therefor (AREA)
KR1020207030079A 2018-03-28 2019-03-26 쐐기형 도광체 Ceased KR20200138758A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862649535P 2018-03-28 2018-03-28
US62/649,535 2018-03-28
PCT/IB2019/052440 WO2019186391A1 (en) 2018-03-28 2019-03-26 Wedge lightguide

Publications (1)

Publication Number Publication Date
KR20200138758A true KR20200138758A (ko) 2020-12-10

Family

ID=68059583

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020207030079A Ceased KR20200138758A (ko) 2018-03-28 2019-03-26 쐐기형 도광체

Country Status (5)

Country Link
US (1) US20210088711A1 (cg-RX-API-DMAC7.html)
JP (1) JP2021519496A (cg-RX-API-DMAC7.html)
KR (1) KR20200138758A (cg-RX-API-DMAC7.html)
TW (1) TW201945776A (cg-RX-API-DMAC7.html)
WO (1) WO2019186391A1 (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7497201B2 (ja) * 2020-04-24 2024-06-10 株式会社小糸製作所 車両用表示装置
CN113267844B (zh) * 2021-04-08 2022-11-22 马鞍山晶智科技有限公司 一种透明单向出光光源模组
CN113238314B (zh) * 2021-05-06 2022-11-01 苏州晶智科技有限公司 一种用于准直背光模组的楔形导光板及其准直背光模组
GB2618554B (en) * 2022-05-10 2024-10-02 Envisics Ltd Compact head-up display and waveguide therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528720A (en) * 1992-03-23 1996-06-18 Minnesota Mining And Manufacturing Co. Tapered multilayer luminaire devices
US6002829A (en) * 1992-03-23 1999-12-14 Minnesota Mining And Manufacturing Company Luminaire device
US5303322A (en) * 1992-03-23 1994-04-12 Nioptics Corporation Tapered multilayer luminaire devices
JP3267847B2 (ja) * 1995-12-28 2002-03-25 オーツタイヤ株式会社 導光板装置
JP3644787B2 (ja) * 1996-05-09 2005-05-11 松下電器産業株式会社 面状照明系
JP4672006B2 (ja) * 2005-03-01 2011-04-20 シャープ株式会社 バックライトユニットおよび液晶表示装置
US8152349B2 (en) * 2009-01-15 2012-04-10 Microsoft Corporation End reflector for a flat panel lens
TWM473611U (zh) * 2013-04-19 2014-03-01 Chin-Piao Kuo 平面光源裝置
WO2017094209A1 (ja) * 2015-11-30 2017-06-08 パナソニックＩｐマネジメント株式会社 映像表示装置および映像表示装置を搭載したヘッドアップディスプレイ

Also Published As

Publication number Publication date
US20210088711A1 (en) 2021-03-25
JP2021519496A (ja) 2021-08-10
TW201945776A (zh) 2019-12-01
WO2019186391A1 (en) 2019-10-03

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Patent event date: 20201020

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