WO2002025369A1 - Image display - Google Patents

Image display Download PDF

Info

Publication number
WO2002025369A1
WO2002025369A1 PCT/JP2001/008268 JP0108268W WO0225369A1 WO 2002025369 A1 WO2002025369 A1 WO 2002025369A1 JP 0108268 W JP0108268 W JP 0108268W WO 0225369 A1 WO0225369 A1 WO 0225369A1
Authority
WO
WIPO (PCT)
Prior art keywords
anisotropic diffuser
composite mirror
image display
ridges
transmitted
Prior art date
Application number
PCT/JP2001/008268
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsuya Oshima
Hiroki Kaneko
Kazutaka Tsuji
Akira Arimoto
Osamu Ebina
Masahiko Yatsu
Original Assignee
Hitachi, Ltd.
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 Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to JP2002529309A priority Critical patent/JP4041397B2/en
Publication of WO2002025369A1 publication Critical patent/WO2002025369A1/en

Links

Classifications

    • 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)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

An image display comprising a conventional composite mirror and having a wide viewing angle in the horizontal direction. A directive reflecting screen has a composite mirror and an anisotropic diffuser which are so arranged that the input light beam is transmitted through the anisotropic diffuser, reflected from the composite mirror, transmitted through the anisotropic diffuser, and emerges from the anisotropic diffuser. The anisotropic diffuser is composed of microlenses having a width parallel to the ridges of the composite mirror and different from the width perpendicular to the ridges.
PCT/JP2001/008268 2000-09-21 2001-09-21 Image display WO2002025369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002529309A JP4041397B2 (en) 2000-09-21 2001-09-21 Image display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000291953 2000-09-21
JP2000-291953 2000-09-21

Publications (1)

Publication Number Publication Date
WO2002025369A1 true WO2002025369A1 (en) 2002-03-28

Family

ID=18774963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/008268 WO2002025369A1 (en) 2000-09-21 2001-09-21 Image display

Country Status (3)

Country Link
JP (1) JP4041397B2 (en)
TW (1) TW578011B (en)
WO (1) WO2002025369A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004104695A1 (en) * 2003-05-26 2006-07-20 シャープ株式会社 Reflective screen
US7349154B2 (en) 2003-05-26 2008-03-25 Sharp Kabushiki Kaisha Reflection type screen
CN100492163C (en) * 2003-05-26 2009-05-27 夏普株式会社 Reflection type screen
JP2010224129A (en) * 2009-03-23 2010-10-07 Sharp Corp Stereoscopic image display device
JP2010262046A (en) * 2009-04-30 2010-11-18 Tomoegawa Paper Co Ltd Reflection type screen
JP2011197674A (en) * 2010-03-17 2011-10-06 Seiko Epson Corp Display system and screen
WO2012150703A1 (en) * 2011-05-02 2012-11-08 シャープ株式会社 Video display system, projection display device, directional reflection screen and layer display device
EP2681609A1 (en) * 2011-02-28 2014-01-08 Hewlett-Packard Development Company, L.P. A front-projection glasses-free, continuous 3d display
WO2017159443A1 (en) * 2016-03-16 2017-09-21 株式会社リコー Screen member and image display device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63259631A (en) * 1987-04-17 1988-10-26 Dainippon Printing Co Ltd Lenticular lens plate
JPS6424336U (en) * 1987-07-31 1989-02-09
JPH01151680U (en) * 1988-04-08 1989-10-19
JPH02170150A (en) * 1988-12-23 1990-06-29 Sony Corp Reflection type screen
JPH02306231A (en) * 1989-05-22 1990-12-19 Kuraray Co Ltd Lens sheet for back transmission type screen
JPH0354544A (en) * 1989-07-24 1991-03-08 Seiko Epson Corp Screen
EP0456518A2 (en) * 1990-05-11 1991-11-13 Mitsubishi Rayon Co., Ltd. Projection screen and method for producing the same
JPH04109236A (en) * 1990-08-30 1992-04-10 Hitachi Ltd Transmission type screen, manufacture of die roll and stamper used for manufacture of said screen and back projection type image display device using said screen
JPH04355442A (en) * 1991-05-31 1992-12-09 Dainippon Printing Co Ltd Transmission type screen
JPH10221642A (en) * 1997-02-05 1998-08-21 Hitachi Ltd Image display device
US6081380A (en) * 1997-12-22 2000-06-27 Hitachi, Ltd. Directional reflection screen and projection display

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63259631A (en) * 1987-04-17 1988-10-26 Dainippon Printing Co Ltd Lenticular lens plate
JPS6424336U (en) * 1987-07-31 1989-02-09
JPH01151680U (en) * 1988-04-08 1989-10-19
JPH02170150A (en) * 1988-12-23 1990-06-29 Sony Corp Reflection type screen
JPH02306231A (en) * 1989-05-22 1990-12-19 Kuraray Co Ltd Lens sheet for back transmission type screen
JPH0354544A (en) * 1989-07-24 1991-03-08 Seiko Epson Corp Screen
EP0456518A2 (en) * 1990-05-11 1991-11-13 Mitsubishi Rayon Co., Ltd. Projection screen and method for producing the same
JPH04109236A (en) * 1990-08-30 1992-04-10 Hitachi Ltd Transmission type screen, manufacture of die roll and stamper used for manufacture of said screen and back projection type image display device using said screen
JPH04355442A (en) * 1991-05-31 1992-12-09 Dainippon Printing Co Ltd Transmission type screen
JPH10221642A (en) * 1997-02-05 1998-08-21 Hitachi Ltd Image display device
US6081380A (en) * 1997-12-22 2000-06-27 Hitachi, Ltd. Directional reflection screen and projection display

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004104695A1 (en) * 2003-05-26 2006-07-20 シャープ株式会社 Reflective screen
US7349154B2 (en) 2003-05-26 2008-03-25 Sharp Kabushiki Kaisha Reflection type screen
CN100492163C (en) * 2003-05-26 2009-05-27 夏普株式会社 Reflection type screen
JP2010224129A (en) * 2009-03-23 2010-10-07 Sharp Corp Stereoscopic image display device
JP2010262046A (en) * 2009-04-30 2010-11-18 Tomoegawa Paper Co Ltd Reflection type screen
JP2011197674A (en) * 2010-03-17 2011-10-06 Seiko Epson Corp Display system and screen
EP2681609A4 (en) * 2011-02-28 2014-08-27 Hewlett Packard Development Co A front-projection glasses-free, continuous 3d display
EP2681609A1 (en) * 2011-02-28 2014-01-08 Hewlett-Packard Development Company, L.P. A front-projection glasses-free, continuous 3d display
JP2014511509A (en) * 2011-02-28 2014-05-15 ヒューレット−パッカード デベロップメント カンパニー エル．ピー． Front projection glassless-free continuous 3D display
WO2012150703A1 (en) * 2011-05-02 2012-11-08 シャープ株式会社 Video display system, projection display device, directional reflection screen and layer display device
WO2017159443A1 (en) * 2016-03-16 2017-09-21 株式会社リコー Screen member and image display device
JPWO2017159443A1 (en) * 2016-03-16 2019-02-28 株式会社リコー Screen member and image display device
US10598830B2 (en) 2016-03-16 2020-03-24 Ricoh Company, Ltd. Screen member, image display apparatus, and object apparatus

Also Published As

Publication number Publication date
JPWO2002025369A1 (en) 2004-01-29
TW578011B (en) 2004-03-01
JP4041397B2 (en) 2008-01-30

Similar Documents

Publication Publication Date Title
US7724443B2 (en) Substrate-guided optical device utilizing thin transparent layer
KR100386725B1 (en) Optical System for Head Mount Display
US7222969B2 (en) Split image optical display
CA2456907A1 (en) Flat-panel projection display
US7974005B2 (en) Display screen for use in front projectors
KR20020010966A (en) Optical system for head mount display
WO2004017136A3 (en) Rear projection display
WO2005052651A3 (en) Optical system for forming an image in space
US6597417B1 (en) Optical panel having black material between apexes of serrations on the inlet face
CN107003599A (en) Rear projection screen with pinhole-like concentrator array
US20020126378A1 (en) Front projection type screen
WO2002025369A1 (en) Image display
JP7356183B2 (en) Camera module using a small reflective part and optical device for augmented reality using the same
JP2012528347A (en) Transparent light emitting window
WO2022113745A1 (en) Floating-in-space-image display device
US20030039030A1 (en) Reflective sheets and applications therefor
JP3210705U (en) Narrow-angle diffuser head-up display device
WO2022249800A1 (en) Spatial floating image display device and light source device
CN105573028A (en) Optical imaging processing system
US10782455B2 (en) Optical system using camera and light source of handheld device
CN116348806A (en) Space suspension image display device and light source device
TW368614B (en) Back side projection type display device
WO2022209721A1 (en) Space floating image display device
CN117377901A (en) Space suspension image display device and light source device
JP2022029901A (en) Space floating video information display system and light source device used for the same

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref country code: JP

Ref document number: 2002 529309

Kind code of ref document: A

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase