WO2005026793A1 - Element optique durable - Google Patents
Element optique durable Download PDFInfo
- Publication number
- WO2005026793A1 WO2005026793A1 PCT/US2004/029603 US2004029603W WO2005026793A1 WO 2005026793 A1 WO2005026793 A1 WO 2005026793A1 US 2004029603 W US2004029603 W US 2004029603W WO 2005026793 A1 WO2005026793 A1 WO 2005026793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical film
- film according
- polymerized
- durable
- durable optical
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- 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
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Definitions
- FIG. 1 is a schematic view of an illustrative micro-structured article of the present invention in a bac lit liquid crystal display
- FIG. 2 is a perspective view of an illustrative polymerized structure bearing a micro-structured surface
- FIG. 3 is a cross-sectional view of an illustrative micro-structured article which has prism elements of varying height
- FIG. 4 is a cross-sectional view of an illustrative micro-structured article which has prism elements of varying height
- FIG. 5 is a cross-sectional view of an illustrative micro-structured article
- FIG. 1 is a schematic view of an illustrative micro-structured article of the present invention in a bac lit liquid crystal display
- FIG. 2 is a perspective view of an illustrative polymerized structure bearing a micro-structured surface
- FIG. 3 is a cross-sectional view of an illustrative micro-structured article which has prism elements of varying height
- Brightness enhancing films generally enhance on-axis luminance (referred herein as "brightness") of a lighting device.
- Brightness enhancing films can be light transmissible, microstructured films.
- the microstructured topography can be a plurality of prisms on the film surface such that the films can be used to redirect light through reflection and refraction.
- NALCO products 1040, 1042, 1050, 1060, 2327 and 2329 Suitable fumed silicas include for example, products sold under the tradename,AEROSIL series OX-50, -130, -150, and - 200 available from DeGussa AG, (Hanau, Germany), and CAB-O-SPERSE 2095, CAB- O-SPERSE A105, CAB-O-SLL M5 available from Cabot Corp. (Tuscola, HI.). Zirconia nanoparticles can have a particle size from 5 to 50 nm, or 5 to 15 nm, or 10 nm.
- the mixture comprising the inorganic sol and surface modifying agents is subsequently reacted at room or an elevated temperature, with or without mixing, hi one method, the mixture can be reacted at about 85 degree C for about 24 hours, resulting in the surface modified sol.
- the surface treatment of the metal oxide can preferably involve the adsorption of acidic molecules to the particle surface.
- the surface modification of the heavy metal oxide preferably takes place at room temperature.
- the surface modification of ZrO2 with silanes can be accomplished under acidic conditions or basic conditions. In one case the silanes are heated under acid conditions for a suitable period of time. At which time the dispersion is combined with aqueous ammonia (or other base).
- a cyclic functional group subject to ring opening polymerization generally contains a heteroatom such as oxygen, sulfur or nitrogen, and preferably a 3-membered ring containing oxygen such as an epoxide.
- the optical layer or micro-structured layer can be formed from a wide variety of polymeric material including the partial listing of polymeric material described herein.
- This layer can be formed from high index of refraction materials, including monomers such as high index of refraction (meth) acrylate monomers, halogenated monomers, and other such high index of refraction monomers as are known in the art. See, for example, U.S. Pat. Nos. 4,568,445; 4,721,377; 4,812,032; and 5,424,339, all incorporated by reference herein.
- the polymerizable composition can be of flowable viscosity that is low enough that air bubbles do not become entrapped in the composition and that the full microstructure geometry is obtained.
- Reactive diluents are typically mono- or di- functional monomers such as SR-339, SR-256, SR-379, SR-395, SR-440, SR-506, CD- 611, SR-212, SR-230, SR-238, and SR-247 available from Sartomer Co., Exton, PA.
- Reactive diluents with refractive index greater than 1.50, like SR-339, may be preferred.
- Oligomeric materials, particularly those with high refractive index, are also useful.
- micro-structure topography can be similar to the molding process described in U.S. Patent No. 5,691,846 which is incorporated by reference herein.
- the micro-structure article according to the invention can be formed from a continuous process at any desired length such as, for example, 5, 10,
- the height or width of the prism elements may be changed within practicable limits—it is practicable to machine precise prisms in ranges extending from about 1 micron to about 200 microns.
- the dihedral angles may be changed or the prism axis may be tilted to achieve a desired optical effect.
- the width of the first zone can be less than about 200 to 300 microns.
- One purpose of the prism side angle variation is to spread and add variable amounts of optical power into the first light redirecting element 526.
- the varying configuration of prisms 538, 540 and 542 serves to provide substantially uniform sampling of the input aperture of the lightguide, which minimizes non-uniformities in the light extracted from the lightguide 516.
- the microstructure includes a plurality of ridges extending along a first surface. These ridges can be rounded to a radius in a range of 4 to 7 micrometers.
- FIG. 14 is a schematic diagram of an illustrative apparatus 700 for determining scratch contrast ratio.
- the apparatus 700 generally includes a light source or backlight 710, a polymerized optical film structure having a microstructured surface and a scratch on the microstructured surface 720 disposed on the backlight 710, a detector 730 configured to acquire image data from the scratch.
- the detector 730 being disposed above the optical film 720 and a computer 740 configured to manipulate the image data and calculate a maximum contrast ratio for the scratched optical film 720.
- Example 1 Nalco 2327(1200.00 g) was charged to a 2 liter Ehrlenmeyer flask. l-Methoxy-2- propanol (1350.3 g), Silane A174 (57.09 g), and PEG2TES (28.19 g) were mixed together and added to the colloidal dispersion while stirring. The contents of the flask were poured into three 32oz sealed jars. The jars were heated at 80°C for 16 hours. This resulted in a clear, low viscosity dispersion of surface modified colloidal silica nanoparticles.
- PEG2TES refers to N-(3-triethoxysilylpropyl) methoxyethoxyethyl carbamate.
- the resin dispersion contained approximately 38.5% SiO2 and approximately 2 % 1- methoxy-2-propanol as measured by gas chromatography. One percent by weight of Darocure 1173 was added to this resin dispersion. Tins example was photo-cured at 2 J/cm 2 .
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04788684A EP1664860A1 (fr) | 2003-09-12 | 2004-09-13 | Element optique durable |
JP2006526317A JP2007505359A (ja) | 2003-09-12 | 2004-09-13 | 耐久性光学素子 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/662,085 | 2003-09-12 | ||
US10/662,085 US7074463B2 (en) | 2003-09-12 | 2003-09-12 | Durable optical element |
US10/939,184 US7179513B2 (en) | 2003-09-12 | 2004-09-10 | Durable optical element |
US10/939,184 | 2004-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005026793A1 true WO2005026793A1 (fr) | 2005-03-24 |
Family
ID=34316889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/029603 WO2005026793A1 (fr) | 2003-09-12 | 2004-09-13 | Element optique durable |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1664860A1 (fr) |
JP (1) | JP2007505359A (fr) |
KR (1) | KR20060121919A (fr) |
WO (1) | WO2005026793A1 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007067692A1 (fr) * | 2005-12-06 | 2007-06-14 | Ubright Optronics Corporation | Substrats optiques d’amélioration de luminance avec structures anti-vibrations |
WO2008120416A1 (fr) * | 2007-02-27 | 2008-10-09 | Konica Minolta Opto, Inc. | Matériau composite optique, procédé de fabrication du matériau composite optique et élément optique utilisant le matériau composite optique |
JP2009516063A (ja) * | 2005-11-15 | 2009-04-16 | スリーエム イノベイティブ プロパティズ カンパニー | 輝度向上フィルム及び無機ナノ粒子を表面処理する方法 |
US7618164B2 (en) | 2005-06-09 | 2009-11-17 | Ubright Optronics Corporation | Moire reducing optical substrates with irregular prism structures |
US7883647B2 (en) | 2006-06-30 | 2011-02-08 | Ubright Optronics Corporation | Method of making luminance enhancement optical substrates with optical defect masking structures |
US7957621B2 (en) * | 2008-12-17 | 2011-06-07 | 3M Innovative Properties Company | Light extraction film with nanoparticle coatings |
US8535576B2 (en) | 2008-12-15 | 2013-09-17 | 3M Innovative Properties Company | High refractive index inorganic oxide nanoparticles comprising surface treatment and polymerizable resin |
WO2021152411A1 (fr) * | 2020-01-29 | 2021-08-05 | 3M Innovative Properties Company | Élément rétroréfléchissant et film rétroréfléchissant |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008023612A1 (fr) * | 2006-08-25 | 2008-02-28 | National University Corporation The University Of Electro-Communications | Composition photosensible comprenant une microparticule composite organique/zircone |
JP2008249962A (ja) * | 2007-03-30 | 2008-10-16 | Nippon Carbide Ind Co Inc | 再帰反射シート |
JP2018180099A (ja) | 2017-04-05 | 2018-11-15 | スリーエム イノベイティブ プロパティズ カンパニー | 親水性ハードコート積層体、及びその製造方法 |
KR102038143B1 (ko) * | 2018-04-16 | 2019-11-26 | 박성민 | 탈부착 사용이 가능한 빛 반사패치 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5626800A (en) * | 1995-02-03 | 1997-05-06 | Minnesota Mining And Manufacturing Company | Prevention of groove tip deformation in brightness enhancement film |
US5760126A (en) * | 1996-12-20 | 1998-06-02 | Minnesota Mining And Manufacturing Company | Aqueous fluorochemical compositions and abrasion-resistant coatings therefrom |
US5898523A (en) * | 1997-07-02 | 1999-04-27 | Minnesota Mining & Manufacturing Company | Tiled retroreflective sheeting composed of highly canted cube corner elements |
US6356391B1 (en) * | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
WO2002045129A2 (fr) * | 2000-11-29 | 2002-06-06 | Nanophase Technologies Corporation | Films resistant a l'abrasion, pratiquement transparents et contenant des particules nanocristallines traitees en surface |
US20030165680A1 (en) * | 2001-11-21 | 2003-09-04 | 3M Innovative Properties Company | Nanoparticles having a rutile-like crystalline phase and method of preparing same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08217991A (ja) * | 1995-02-02 | 1996-08-27 | Minnesota Mining & Mfg Co <3M> | 放射線硬化性材料 |
JP2001133607A (ja) * | 1999-08-25 | 2001-05-18 | Sumitomo Chem Co Ltd | 光散乱層、光散乱板、カラーフィルタおよびそれを用いた液晶表示装置 |
JP4177637B2 (ja) * | 2002-10-28 | 2008-11-05 | Tdk株式会社 | ノングレア処理された物体の製造方法 |
-
2004
- 2004-09-13 EP EP04788684A patent/EP1664860A1/fr not_active Withdrawn
- 2004-09-13 JP JP2006526317A patent/JP2007505359A/ja active Pending
- 2004-09-13 KR KR1020067006977A patent/KR20060121919A/ko not_active Application Discontinuation
- 2004-09-13 WO PCT/US2004/029603 patent/WO2005026793A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5626800A (en) * | 1995-02-03 | 1997-05-06 | Minnesota Mining And Manufacturing Company | Prevention of groove tip deformation in brightness enhancement film |
US5760126A (en) * | 1996-12-20 | 1998-06-02 | Minnesota Mining And Manufacturing Company | Aqueous fluorochemical compositions and abrasion-resistant coatings therefrom |
US5898523A (en) * | 1997-07-02 | 1999-04-27 | Minnesota Mining & Manufacturing Company | Tiled retroreflective sheeting composed of highly canted cube corner elements |
US6356391B1 (en) * | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
WO2002045129A2 (fr) * | 2000-11-29 | 2002-06-06 | Nanophase Technologies Corporation | Films resistant a l'abrasion, pratiquement transparents et contenant des particules nanocristallines traitees en surface |
US20030165680A1 (en) * | 2001-11-21 | 2003-09-04 | 3M Innovative Properties Company | Nanoparticles having a rutile-like crystalline phase and method of preparing same |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7618164B2 (en) | 2005-06-09 | 2009-11-17 | Ubright Optronics Corporation | Moire reducing optical substrates with irregular prism structures |
US8517573B2 (en) | 2005-06-09 | 2013-08-27 | Ubright Optronics Corporation | Moire reducing optical substrates with irregular prism structures |
JP2009516063A (ja) * | 2005-11-15 | 2009-04-16 | スリーエム イノベイティブ プロパティズ カンパニー | 輝度向上フィルム及び無機ナノ粒子を表面処理する方法 |
WO2007067692A1 (fr) * | 2005-12-06 | 2007-06-14 | Ubright Optronics Corporation | Substrats optiques d’amélioration de luminance avec structures anti-vibrations |
US7712944B2 (en) | 2005-12-06 | 2010-05-11 | Ubright Optronics Corporation | Luminance enhancement optical substrates with anti-chatter structures |
US7883647B2 (en) | 2006-06-30 | 2011-02-08 | Ubright Optronics Corporation | Method of making luminance enhancement optical substrates with optical defect masking structures |
US8367186B2 (en) | 2006-06-30 | 2013-02-05 | Ubright Optronics Corporation | Luminance enhancement optical substrates with optical defect masking structures |
WO2008120416A1 (fr) * | 2007-02-27 | 2008-10-09 | Konica Minolta Opto, Inc. | Matériau composite optique, procédé de fabrication du matériau composite optique et élément optique utilisant le matériau composite optique |
US8535576B2 (en) | 2008-12-15 | 2013-09-17 | 3M Innovative Properties Company | High refractive index inorganic oxide nanoparticles comprising surface treatment and polymerizable resin |
US8821770B2 (en) | 2008-12-15 | 2014-09-02 | 3M Innovative Properties Company | High refractive index inorganic oxide nanoparticles comprising surface treatment and polymerizable resin |
US7957621B2 (en) * | 2008-12-17 | 2011-06-07 | 3M Innovative Properties Company | Light extraction film with nanoparticle coatings |
WO2021152411A1 (fr) * | 2020-01-29 | 2021-08-05 | 3M Innovative Properties Company | Élément rétroréfléchissant et film rétroréfléchissant |
Also Published As
Publication number | Publication date |
---|---|
EP1664860A1 (fr) | 2006-06-07 |
JP2007505359A (ja) | 2007-03-08 |
KR20060121919A (ko) | 2006-11-29 |
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