DE69516723D1 - Lichtstreuende materialen - Google Patents

Lichtstreuende materialen

Info

Publication number
DE69516723D1
DE69516723D1 DE69516723T DE69516723T DE69516723D1 DE 69516723 D1 DE69516723 D1 DE 69516723D1 DE 69516723 T DE69516723 T DE 69516723T DE 69516723 T DE69516723 T DE 69516723T DE 69516723 D1 DE69516723 D1 DE 69516723D1
Authority
DE
Germany
Prior art keywords
light distributing
distributing materials
materials
light
distributing
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 - Lifetime
Application number
DE69516723T
Other languages
English (en)
Other versions
DE69516723T2 (de
Inventor
Robin Clabburn
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.)
Nashua Photo Ltd
Nashua Corp
Original Assignee
Nashua Photo Ltd
Nashua Corp
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
Priority claimed from GBGB9426292.0A external-priority patent/GB9426292D0/en
Priority claimed from GBGB9500025.3A external-priority patent/GB9500025D0/en
Priority claimed from GBGB9521103.3A external-priority patent/GB9521103D0/en
Application filed by Nashua Photo Ltd, Nashua Corp filed Critical Nashua Photo Ltd
Application granted granted Critical
Publication of DE69516723D1 publication Critical patent/DE69516723D1/de
Publication of DE69516723T2 publication Critical patent/DE69516723T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • 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
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Overhead Projectors And Projection Screens (AREA)
DE69516723T 1994-12-28 1995-12-28 Lichtstreuende materialen Expired - Lifetime DE69516723T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9426292.0A GB9426292D0 (en) 1994-12-28 1994-12-28 Asymmetric light diffusing materials
GBGB9500025.3A GB9500025D0 (en) 1995-01-04 1995-01-04 Asymmetric light diffusing materials
GBGB9521103.3A GB9521103D0 (en) 1995-10-16 1995-10-16 Asymmetric light diffusing material
PCT/GB1995/003044 WO1996020419A1 (en) 1994-12-28 1995-12-28 Light diffusing material

Publications (2)

Publication Number Publication Date
DE69516723D1 true DE69516723D1 (de) 2000-06-08
DE69516723T2 DE69516723T2 (de) 2000-11-09

Family

ID=27267542

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69516723T Expired - Lifetime DE69516723T2 (de) 1994-12-28 1995-12-28 Lichtstreuende materialen

Country Status (5)

Country Link
EP (1) EP0800658B1 (de)
JP (2) JP3958359B2 (de)
DE (1) DE69516723T2 (de)
TW (1) TW360813B (de)
WO (1) WO1996020419A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9928166D0 (en) * 1999-11-29 2000-01-26 Microgrin Limited Reflective diffuser
GB0010697D0 (en) * 2000-05-03 2000-06-28 Microsharp Corp Limited Reflective light diffuser
US6819486B2 (en) 2001-01-17 2004-11-16 3M Innovative Properties Company Projection screen having elongated structures
US6727313B2 (en) 2001-01-17 2004-04-27 3M Innovative Properties Company Polymeric compositions and articles with anisotropic light scattering and methods of making and using
JP2002318311A (ja) * 2001-04-20 2002-10-31 Clariant (Japan) Kk 制御された散乱・透過特性を有する光学フィルム
JP5625961B2 (ja) * 2011-01-31 2014-11-19 大日本印刷株式会社 透過型曲面スクリーンの製造方法、及び表示装置の製造方法
EP2912502B1 (de) * 2012-07-20 2016-04-27 Koninklijke Philips N.V. Veränderbarer lichtstreuender körper
TWI513996B (zh) * 2012-09-18 2015-12-21 Rohm & Haas 水性塗層組成物及由其製造之抗眩光塗層

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143618A (ja) * 1983-02-04 1984-08-17 Mitsubishi Rayon Co Ltd 透過型スクリ−ンの製造方法
AU629170B2 (en) * 1987-06-01 1992-10-01 Nashua Corporation Display system utilising light transmitting screen and method of manufacturing same
JPH02199444A (ja) * 1989-01-30 1990-08-07 Matsushita Electric Ind Co Ltd 透過型スクリーンとその製造方法とそれを用いた透過型プロジェクションテレビ
JP2896801B2 (ja) * 1990-06-01 1999-05-31 三菱レイヨン株式会社 投写スクリーンおよびその製造方法
EP0464499A3 (en) * 1990-06-22 1992-04-15 Sumitomo Chemical Company, Limited Anisotropic light-scattering material, method for producing the same and lenticular lens for projection tv screen
EP0627638A1 (de) * 1993-06-02 1994-12-07 Hughes Aircraft Company Elliptischer Diffusor

Also Published As

Publication number Publication date
TW360813B (en) 1999-06-11
DE69516723T2 (de) 2000-11-09
EP0800658B1 (de) 2000-05-03
WO1996020419A1 (en) 1996-07-04
JPH11500538A (ja) 1999-01-12
JP3958359B2 (ja) 2007-08-15
EP0800658A1 (de) 1997-10-15
JP2006227573A (ja) 2006-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition