WO2004106992A3 - Lentille de fresnel, ecran de projection, systeme et appareil de projection correspondants. - Google Patents

Lentille de fresnel, ecran de projection, systeme et appareil de projection correspondants. Download PDF

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Publication number
WO2004106992A3
WO2004106992A3 PCT/FR2004/050199 FR2004050199W WO2004106992A3 WO 2004106992 A3 WO2004106992 A3 WO 2004106992A3 FR 2004050199 W FR2004050199 W FR 2004050199W WO 2004106992 A3 WO2004106992 A3 WO 2004106992A3
Authority
WO
WIPO (PCT)
Prior art keywords
fresnel lens
angle
lens
projection device
relates
Prior art date
Application number
PCT/FR2004/050199
Other languages
English (en)
Other versions
WO2004106992A2 (fr
Inventor
Arno Schubert
Pascal Benoit
Original Assignee
Thomson Licensing Sa
Arno Schubert
Pascal Benoit
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 Thomson Licensing Sa, Arno Schubert, Pascal Benoit filed Critical Thomson Licensing Sa
Priority to MXPA05012445A priority Critical patent/MXPA05012445A/es
Priority to EP04767828A priority patent/EP1625426A2/fr
Priority to US10/557,493 priority patent/US7342728B2/en
Priority to JP2006530441A priority patent/JP2007504515A/ja
Publication of WO2004106992A2 publication Critical patent/WO2004106992A2/fr
Publication of WO2004106992A3 publication Critical patent/WO2004106992A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00269—Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • 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
    • 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
    • G03B21/62—Translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne une lentille de Fresnel. Chaque structure réfractive de la lentille est délimitée par deux surfaces, la deuxième surface faisant un deuxième angle (β) avec la normale au plan d'incidence (P). On prévoit au moins deux zones de structures réfractives dans lesquelles, le deuxième angle ((β) est égal a ('angle d'entrée (θint) d'un faisceau. Chaque première surface réfracte la lumière selon une direction parallèle ou non à l'axe de la lentille en fonction de la zone. L'invention concerne également un système comprenant un miroir de repli et une lentille de Fresnel dans lesquel le deuxième angle est égal à l'angle d'entrée d'un rayon parasite obtenu par réflexion sur la lentille de Fresnel puis sur le miroir. L'invention concerne aussi un écran et un appareil de rétroprojection correspondant.
PCT/FR2004/050199 2003-05-20 2004-05-17 Lentille de fresnel, ecran de projection, systeme et appareil de projection correspondants. WO2004106992A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MXPA05012445A MXPA05012445A (es) 2003-05-20 2004-05-17 Lente de fresnel, pantalla de proyeccion, dispositivo y sistema de proyeccion correspondientes.
EP04767828A EP1625426A2 (fr) 2003-05-20 2004-05-17 Lentille de fresnel, ecran de projection, systeme et appareil de projection correspondants.
US10/557,493 US7342728B2 (en) 2003-05-20 2004-05-17 Fresnel lens, backprojection screen, and corresponding backprojection system and unit
JP2006530441A JP2007504515A (ja) 2003-05-20 2004-05-17 フレネルレンズ、投射スクリーン、対応する投射デバイス及び投射系

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0306064 2003-05-20
FR0306064A FR2855273A1 (fr) 2003-05-20 2003-05-20 Lentille de fresnel a eclairer sous incidence elevee

Publications (2)

Publication Number Publication Date
WO2004106992A2 WO2004106992A2 (fr) 2004-12-09
WO2004106992A3 true WO2004106992A3 (fr) 2005-05-19

Family

ID=33396613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/050199 WO2004106992A2 (fr) 2003-05-20 2004-05-17 Lentille de fresnel, ecran de projection, systeme et appareil de projection correspondants.

Country Status (8)

Country Link
US (1) US7342728B2 (fr)
EP (1) EP1625426A2 (fr)
JP (1) JP2007504515A (fr)
KR (1) KR20060021315A (fr)
CN (1) CN100426006C (fr)
FR (1) FR2855273A1 (fr)
MX (1) MXPA05012445A (fr)
WO (1) WO2004106992A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864851A1 (fr) * 2004-01-07 2005-07-08 Thomson Licensing Sa Lentille de fresnel et dispositif d'affichage a projection utilisant une telle lentille
FR2895526A1 (fr) * 2005-12-22 2007-06-29 Thomson Licensing Sas Systeme de retro-eclairage pour panneau d'affichage a cristal liquide et dispositif d'affichage correspondant
TWM373496U (en) * 2009-07-29 2010-02-01 Chunghwa Picture Tubes Ltd Collimated system with multi-backlight source
US8599483B1 (en) 2012-06-05 2013-12-03 3M Innovative Properties Company High angle rear projection system
CN104460214B (zh) * 2013-09-18 2018-01-30 深圳市东方硅源科技有限公司 光学玻璃
CN109725484B (zh) * 2019-01-08 2022-03-04 成都菲斯特科技有限公司 一种偏轴短焦正投影光学屏幕及投影显示***

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101A (ja) * 1982-06-24 1984-01-05 Mitsubishi Electric Corp フレネルレンズ
US4824227A (en) * 1985-11-20 1989-04-25 North American Philips Corporation Optimum riser angle for fresnel lenses in projection screens
EP0333333A1 (fr) * 1988-02-25 1989-09-20 THORN EMI plc Dispositif d'affichage
JPH0345988A (ja) * 1989-07-13 1991-02-27 Canon Inc 背面投射型表示装置
JPH03211540A (ja) * 1990-01-17 1991-09-17 Dainippon Printing Co Ltd 透過形スクリーン
JPH04322202A (ja) * 1991-04-22 1992-11-12 Dainippon Printing Co Ltd フレネルレンズ
US5191472A (en) * 1988-11-29 1993-03-02 Canon Kabushiki Kaisha Apparatus having a screen with light blocking elements
US5432636A (en) * 1993-05-31 1995-07-11 Kuraray Co., Ltd. Rear-projection screen
EP0819973A1 (fr) * 1996-07-15 1998-01-21 Dai Nippon Printing Co., Ltd. Feuille à lentille de Fresnel pour écran à rétroprojection
WO1999013378A1 (fr) * 1997-09-09 1999-03-18 Minnesota Mining And Manufacturing Company Afficheur a projection par transparence
JP2002365732A (ja) * 2001-05-31 2002-12-18 Ind Technol Res Inst ゴーストが発生しない背面投射型表示スクリーン

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3311540B2 (ja) 1995-04-28 2002-08-05 富士ゼロックス株式会社 データ管理システム
KR20040079423A (ko) * 2002-11-26 2004-09-14 미쓰비시덴키 가부시키가이샤 투과형 스크린 및 투사형 표시 장치

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101A (ja) * 1982-06-24 1984-01-05 Mitsubishi Electric Corp フレネルレンズ
US4824227A (en) * 1985-11-20 1989-04-25 North American Philips Corporation Optimum riser angle for fresnel lenses in projection screens
EP0333333A1 (fr) * 1988-02-25 1989-09-20 THORN EMI plc Dispositif d'affichage
US5191472A (en) * 1988-11-29 1993-03-02 Canon Kabushiki Kaisha Apparatus having a screen with light blocking elements
JPH0345988A (ja) * 1989-07-13 1991-02-27 Canon Inc 背面投射型表示装置
JPH03211540A (ja) * 1990-01-17 1991-09-17 Dainippon Printing Co Ltd 透過形スクリーン
JPH04322202A (ja) * 1991-04-22 1992-11-12 Dainippon Printing Co Ltd フレネルレンズ
US5432636A (en) * 1993-05-31 1995-07-11 Kuraray Co., Ltd. Rear-projection screen
EP0819973A1 (fr) * 1996-07-15 1998-01-21 Dai Nippon Printing Co., Ltd. Feuille à lentille de Fresnel pour écran à rétroprojection
WO1999013378A1 (fr) * 1997-09-09 1999-03-18 Minnesota Mining And Manufacturing Company Afficheur a projection par transparence
JP2002365732A (ja) * 2001-05-31 2002-12-18 Ind Technol Res Inst ゴーストが発生しない背面投射型表示スクリーン

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 082 (P - 268) 14 April 1984 (1984-04-14) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 192 (P - 1202) 17 May 1991 (1991-05-17) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 487 (P - 1286) 10 December 1991 (1991-12-10) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 157 (P - 1511) 26 March 1993 (1993-03-26) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 04 2 April 2003 (2003-04-02) *

Also Published As

Publication number Publication date
JP2007504515A (ja) 2007-03-01
US7342728B2 (en) 2008-03-11
WO2004106992A2 (fr) 2004-12-09
KR20060021315A (ko) 2006-03-07
CN100426006C (zh) 2008-10-15
EP1625426A2 (fr) 2006-02-15
FR2855273A1 (fr) 2004-11-26
CN1791809A (zh) 2006-06-21
US20070091466A1 (en) 2007-04-26
MXPA05012445A (es) 2006-01-30

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