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WO2009070389A3 - Optical system with high contrast - Google Patents

Optical system with high contrast Download PDF

Info

Publication number
WO2009070389A3
WO2009070389A3 PCT/US2008/079800 US2008079800W WO2009070389A3 WO 2009070389 A3 WO2009070389 A3 WO 2009070389A3 US 2008079800 W US2008079800 W US 2008079800W WO 2009070389 A3 WO2009070389 A3 WO 2009070389A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical system
emitted
acceptance
angle
cone
Prior art date
Application number
PCT/US2008/079800
Other languages
French (fr)
Other versions
WO2009070389A2 (en
Inventor
Guido Hitschmann
Kay-Uwe Schenke
Original Assignee
3M Innovative Properties Co
Guido Hitschmann
Kay-Uwe Schenke
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 3M Innovative Properties Co, Guido Hitschmann, Kay-Uwe Schenke filed Critical 3M Innovative Properties Co
Publication of WO2009070389A2 publication Critical patent/WO2009070389A2/en
Publication of WO2009070389A3 publication Critical patent/WO2009070389A3/en

Links

Classifications

    • 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
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/003—Light absorbing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

An optical system is disclosed. The optical system includes an image forming device that forms an image in a display plane. The display plane emits image rays within an emitted cone that has an associated emitted angle. The optical system further includes an optical film that has an acceptance cone and an associated acceptance angle. The optical film receives the emitted image rays and substantially transmits the received image rays that are within the acceptance cone, and substantially blocks the image rays that are outside the acceptance cone. The acceptance angle is at least as large as the emitted angle
PCT/US2008/079800 2007-11-26 2008-10-14 Optical system with high contrast WO2009070389A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99015707P 2007-11-26 2007-11-26
US60/990,157 2007-11-26

Publications (2)

Publication Number Publication Date
WO2009070389A2 WO2009070389A2 (en) 2009-06-04
WO2009070389A3 true WO2009070389A3 (en) 2009-07-30

Family

ID=40679197

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/079800 WO2009070389A2 (en) 2007-11-26 2008-10-14 Optical system with high contrast

Country Status (1)

Country Link
WO (1) WO2009070389A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8405895B2 (en) 2007-11-26 2013-03-26 3M Innovative Properties Company Optical system with high contrast
DE102017107303A1 (en) * 2017-04-05 2018-10-11 Osram Opto Semiconductors Gmbh DEVICE FOR DISPLAYING AN IMAGE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0954252A (en) * 1995-08-17 1997-02-25 Dainippon Screen Mfg Co Ltd Parallel light illumination optical system
JP2005055736A (en) * 2003-08-06 2005-03-03 Sharp Corp Optical sheet and liquid crystal display and display apparatus equipped with the optical sheet
KR20050035196A (en) * 2003-03-20 2005-04-15 다이니폰 인사츠 가부시키가이샤 Transmission screen
KR20060041728A (en) * 2004-02-05 2006-05-12 샤프 가부시키가이샤 Viewing angle control element and video display device using the same
KR20070032688A (en) * 2004-06-15 2007-03-22 소니 가부시키가이샤 Optical film, liquid crystal panel and liquid crystal display

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0954252A (en) * 1995-08-17 1997-02-25 Dainippon Screen Mfg Co Ltd Parallel light illumination optical system
KR20050035196A (en) * 2003-03-20 2005-04-15 다이니폰 인사츠 가부시키가이샤 Transmission screen
JP2005055736A (en) * 2003-08-06 2005-03-03 Sharp Corp Optical sheet and liquid crystal display and display apparatus equipped with the optical sheet
KR20060041728A (en) * 2004-02-05 2006-05-12 샤프 가부시키가이샤 Viewing angle control element and video display device using the same
KR20070032688A (en) * 2004-06-15 2007-03-22 소니 가부시키가이샤 Optical film, liquid crystal panel and liquid crystal display

Also Published As

Publication number Publication date
WO2009070389A2 (en) 2009-06-04

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