DE69810341T2 - Diffus reflektierende gegenstände - Google Patents

Diffus reflektierende gegenstände

Info

Publication number
DE69810341T2
DE69810341T2 DE1998610341 DE69810341T DE69810341T2 DE 69810341 T2 DE69810341 T2 DE 69810341T2 DE 1998610341 DE1998610341 DE 1998610341 DE 69810341 T DE69810341 T DE 69810341T DE 69810341 T2 DE69810341 T2 DE 69810341T2
Authority
DE
Germany
Prior art keywords
different reflective
reflective items
items
different
reflective
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.)
Expired - Fee Related
Application number
DE1998610341
Other languages
English (en)
Other versions
DE69810341D1 (de
Inventor
Scott R Kaytor
David R Gagnon
Kenneth A Epstein
Clinton P Waller Jr
William A Hibbard
John C Harvey
Stephen J Pojar
Neal T Strand
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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69810341D1 publication Critical patent/DE69810341D1/de
Publication of DE69810341T2 publication Critical patent/DE69810341T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0247—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of voids or pores
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0284—Diffusing elements; Afocal elements characterized by the use used in reflection
    • 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
    • G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249981—Plural void-containing components
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/24999—Inorganic

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
DE1998610341 1997-10-24 1998-09-17 Diffus reflektierende gegenstände Expired - Fee Related DE69810341T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/957,558 US5976686A (en) 1997-10-24 1997-10-24 Diffuse reflective articles
PCT/US1998/019414 WO1999021913A1 (en) 1997-10-24 1998-09-17 Diffuse reflective articles

Publications (2)

Publication Number Publication Date
DE69810341D1 DE69810341D1 (de) 2003-01-30
DE69810341T2 true DE69810341T2 (de) 2003-10-30

Family

ID=25499760

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998610341 Expired - Fee Related DE69810341T2 (de) 1997-10-24 1998-09-17 Diffus reflektierende gegenstände

Country Status (7)

Country Link
US (1) US5976686A (de)
EP (1) EP1025146B1 (de)
JP (1) JP2001521198A (de)
KR (1) KR100571067B1 (de)
CA (1) CA2305083C (de)
DE (1) DE69810341T2 (de)
WO (1) WO1999021913A1 (de)

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EP1075687B1 (de) 1998-04-30 2002-05-29 Minnesota Mining And Manufacturing Company Beleuchteter schaukasten mit diffus-reflektivem film
KR20010052208A (ko) 1999-01-14 2001-06-25 스프레이그 로버트 월터 광확산용 광학 시트
US6515785B1 (en) * 1999-04-22 2003-02-04 3M Innovative Properties Company Optical devices using reflecting polarizing materials
SG93245A1 (en) * 1999-07-13 2002-12-17 Johnson & Johnson Vision Care Reflectors for uv radiation source
US20040005451A1 (en) * 1999-08-03 2004-01-08 Minnesota Mining And Manufacturing Company Diffuse reflective articles
WO2001022129A1 (en) 1999-09-20 2001-03-29 3M Innovative Properties Company Optical films having at least one particle-containing layer
US6590711B1 (en) 2000-04-03 2003-07-08 3M Innovative Properties Co. Light directing construction having corrosion resistant feature
US6264336B1 (en) 1999-10-22 2001-07-24 3M Innovative Properties Company Display apparatus with corrosion-resistant light directing film
US6641767B2 (en) 2000-03-10 2003-11-04 3M Innovative Properties Company Methods for replication, replicated articles, and replication tools
JP2001351425A (ja) * 2000-06-08 2001-12-21 Fujitsu Ltd バックライト装置及び液晶表示装置
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US6930737B2 (en) * 2001-01-16 2005-08-16 Visteon Global Technologies, Inc. LED backlighting system
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JP4790165B2 (ja) * 2001-06-26 2011-10-12 エスケー化研株式会社 開放型多孔質反射体
US6663262B2 (en) * 2001-09-10 2003-12-16 3M Innovative Properties Company Backlighting transmissive displays
US20030063888A1 (en) * 2001-10-01 2003-04-03 Sahlin Jennifer J. Channeling for use with light fiber
JP3750640B2 (ja) * 2002-08-22 2006-03-01 セイコーエプソン株式会社 素子基板、電子装置、光学装置、及び電子機器
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US8023065B2 (en) 2005-06-24 2011-09-20 3M Innovative Properties Company Optical element for lateral light spreading in edge-lit displays and system using same
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CN102325585B (zh) 2008-12-31 2014-12-10 3M创新有限公司 具有异径多区的多孔膜
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CN102439094A (zh) * 2009-03-20 2012-05-02 埃里克·威廉赫恩·蒂特 漫反射光的涂料组合物、制备涂料组合物的方法以及漫反射光的制品
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Also Published As

Publication number Publication date
JP2001521198A (ja) 2001-11-06
EP1025146B1 (de) 2002-12-18
KR100571067B1 (ko) 2006-04-14
CA2305083A1 (en) 1999-05-06
WO1999021913A1 (en) 1999-05-06
DE69810341D1 (de) 2003-01-30
KR20010024553A (ko) 2001-03-26
EP1025146A1 (de) 2000-08-09
US5976686A (en) 1999-11-02
CA2305083C (en) 2008-03-25

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