WO1999036810A1 - Multicomponent optical body - Google Patents

Multicomponent optical body Download PDF

Info

Publication number
WO1999036810A1
WO1999036810A1 PCT/US1999/000525 US9900525W WO9936810A1 WO 1999036810 A1 WO1999036810 A1 WO 1999036810A1 US 9900525 W US9900525 W US 9900525W WO 9936810 A1 WO9936810 A1 WO 9936810A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
thickness
repeating unit
along
film
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
PCT/US1999/000525
Other languages
English (en)
French (fr)
Inventor
John A. Wheatley
Timothy J. Nevitt
William W. Merrill
Michael F. Weber
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
Priority to JP2000540464A priority Critical patent/JP2002509281A/ja
Priority to EP99901402A priority patent/EP1051649B1/en
Priority to DE69907405T priority patent/DE69907405T2/de
Priority to AU21106/99A priority patent/AU2110699A/en
Publication of WO1999036810A1 publication Critical patent/WO1999036810A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/281—Interference filters designed for the infrared light
    • G02B5/282—Interference filters designed for the infrared light reflecting for infrared and transparent for visible light, e.g. heat reflectors, laser protection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

Definitions

  • a multilayer film or other optical body that exhibits a first order reflection band for at least one polarization of electromagnetic radiation in a first region of the spectrum (e.g., in the infrared, visible or ultraviolet regions of the spectrum) but can be designed to suppress at least the second, and preferably also at least the third, higher order harmonics of the first reflection band.
  • a multilayer film or optical body that has a first reflection band in the infrared region of the spectrum but that exhibits essentially no higher order reflection peaks in the visible region of the spectrum.
  • Suitable materials include polyethylene naphthalate (PEN) and isomers thereof (e.g.. 2,6-, 1,4-, 1,5-, 2,7-, and 2,3-PEN), polyalkylene terephthalates (e.g.. polyethylene terephthalate (PET), polybutylene terephthalate (PBT), poly- 1,4- cyclohexanedimethylene terephthalate) and copolymers of these, e.g., PETG, polyimides
  • each individual layer may include blends of two or more of the above-described polymers or copolymers (e.g.. blends of syndiotactic polystyrene (sPS) and atactic polystyrene).
  • sPS syndiotactic polystyrene
  • ECDELTM 1.52 1.52 (here ECDELTM is one of many aliphatic polyesters with this low value of isotropic index of refraction)
  • the multilayer reflective films of the present invention can be readily manufactured in a cost effective way, and can be formed and shaped into a variety of useful configurations after coextrusion.
  • Multilayer infrared reflective films in accordance with the present invention are most advantageously prepared by employing multilayered coextrusion devices such as those described in U.S. Patent Nos. 3,773,882 and 3,884,606.
  • Dyes or pigments useful in the present invention may be narrow-band absorbing, absorbing in the region of the spectrum not covered because of the position of the short wavelength bandedge of the optical body, for example, 700 to 850 nm, or may be broad band, absorbing over substantially all or all of the infrared region.
  • the dye or pigment can be applied to either surface of the film, in a layer of glass or polymer, such as polycarbonate or acrylic, laminated to the film, or be present in at least one of the polymer layers of the film. From a solar energy standpoint, the dye is preferably on the innermost surface of the film (i.e. toward the room interior and away from the sun) so that when the sun is a high angle, the film reflective band shifts to lower wavelengths, essentially coinciding with the wavelength region of the dye. This is preferred because reflecting solar energy away from the building is preferred to absorbing it.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
PCT/US1999/000525 1998-01-13 1999-01-08 Multicomponent optical body Ceased WO1999036810A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000540464A JP2002509281A (ja) 1998-01-13 1999-01-08 多成分光学本体
EP99901402A EP1051649B1 (en) 1998-01-13 1999-01-08 Multicomponent optical body
DE69907405T DE69907405T2 (de) 1998-01-13 1999-01-08 Optischer mehrkomponentenkörper
AU21106/99A AU2110699A (en) 1998-01-13 1999-01-08 Multicomponent optical body

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/006,118 1998-01-13
US09/006,118 US6207260B1 (en) 1998-01-13 1998-01-13 Multicomponent optical body

Publications (1)

Publication Number Publication Date
WO1999036810A1 true WO1999036810A1 (en) 1999-07-22

Family

ID=21719401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/000525 Ceased WO1999036810A1 (en) 1998-01-13 1999-01-08 Multicomponent optical body

Country Status (7)

Country Link
US (2) US6207260B1 (https=)
EP (1) EP1051649B1 (https=)
JP (1) JP2002509281A (https=)
CN (1) CN1288521A (https=)
AU (1) AU2110699A (https=)
DE (1) DE69907405T2 (https=)
WO (1) WO1999036810A1 (https=)

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US6767609B2 (en) 2000-09-15 2004-07-27 3M Innovative Properties Company Perforated film constructions for backlit signs
US6885451B2 (en) 2002-03-09 2005-04-26 Kimberly-Clark Worldwide, Inc. Infrared detection of composite article components
US6888143B2 (en) 2002-03-09 2005-05-03 Kimberly-Clark Worldwide, Inc. Apparatus and method for inspecting pre-fastened articles
US6900450B2 (en) 2002-03-09 2005-05-31 Kimberly-Clark Worldwide, Inc. Method and apparatus for inferring item position based on multiple data
US6919965B2 (en) 2002-03-09 2005-07-19 Kimberly-Clark Worldwide, Inc. Apparatus and method for making and inspecting pre-fastened articles
US6927900B2 (en) 2001-01-15 2005-08-09 3M Innovative Properties Company Multilayer infrared reflecting film with high and smooth transmission in visible wavelength region and laminate articles made therefrom
US6927857B2 (en) 2002-03-09 2005-08-09 Kimberly-Clark Worldwide, Inc. Process for the detection of marked components of a composite article using infrared blockers
US7123765B2 (en) 2002-07-31 2006-10-17 Kimberly-Clark Worldwide, Inc. Apparatus and method for inspecting articles
US7291398B2 (en) 2003-10-28 2007-11-06 E. I. Du Pont De Nemours And Company Ionomer resins as interlayers for use with imbedded or attached IR reflective or absorptive films in laminated glazing applications
EP2295141A1 (en) 2000-06-28 2011-03-16 3M Innovative Properties Co. Enhanced sample processing methods
WO2015034801A3 (en) * 2013-09-06 2015-07-30 3M Innovative Properties Company Head mounted display with eye tracking
WO2019145860A1 (en) * 2018-01-26 2019-08-01 3M Innovative Properties Company Multilayer reflective polarizer with crystalline low index layers

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DE69629471T2 (de) * 1995-06-26 2004-06-09 Minnesota Mining And Mfg. Co., Saint Paul Hintergrundbeleuchtungsvorrichtung mit mehrschichtfilmreflektor
US7023602B2 (en) * 1999-05-17 2006-04-04 3M Innovative Properties Company Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter and color separation and recombination prisms
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US6082876A (en) 1998-01-13 2000-07-04 3M Innovative Properties Company Hand-holdable toy light tube with color changing film
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US6808658B2 (en) * 1998-01-13 2004-10-26 3M Innovative Properties Company Method for making texture multilayer optical films
US6207260B1 (en) * 1998-01-13 2001-03-27 3M Innovative Properties Company Multicomponent optical body
US6788463B2 (en) 1998-01-13 2004-09-07 3M Innovative Properties Company Post-formable multilayer optical films and methods of forming
US6926952B1 (en) * 1998-01-13 2005-08-09 3M Innovative Properties Company Anti-reflective polymer constructions and method for producing same
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US7946226B1 (en) * 1998-10-23 2011-05-24 Harald Kaufmann Serigraphy reflection transfer and product and method for producing the same
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US6667095B2 (en) 2003-12-23
DE69907405D1 (de) 2003-06-05
DE69907405T2 (de) 2004-03-25
EP1051649B1 (en) 2003-05-02
CN1288521A (zh) 2001-03-21
US6207260B1 (en) 2001-03-27

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