EP1597514A4 - Polarisationsrückgewinnung durch umlenkung - Google Patents

Polarisationsrückgewinnung durch umlenkung

Info

Publication number
EP1597514A4
EP1597514A4 EP04713304A EP04713304A EP1597514A4 EP 1597514 A4 EP1597514 A4 EP 1597514A4 EP 04713304 A EP04713304 A EP 04713304A EP 04713304 A EP04713304 A EP 04713304A EP 1597514 A4 EP1597514 A4 EP 1597514A4
Authority
EP
European Patent Office
Prior art keywords
light
polarization
reflector
output
recovery apparatus
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.)
Withdrawn
Application number
EP04713304A
Other languages
English (en)
French (fr)
Other versions
EP1597514A2 (de
Inventor
Kenneth K Li
Seiji Inatsugu
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.)
Wavien Inc
Original Assignee
Wavien Inc
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 Wavien Inc filed Critical Wavien Inc
Publication of EP1597514A2 publication Critical patent/EP1597514A2/de
Publication of EP1597514A4 publication Critical patent/EP1597514A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0994—Fibers, light pipes
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)
EP04713304A 2003-02-21 2004-02-20 Polarisationsrückgewinnung durch umlenkung Withdrawn EP1597514A4 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US44847103P 2003-02-21 2003-02-21
US448471P 2003-02-21
US46939303P 2003-05-12 2003-05-12
US469393P 2003-05-12
PCT/US2004/004866 WO2004077102A2 (en) 2003-02-21 2004-02-20 Polarization recovery system using redirection

Publications (2)

Publication Number Publication Date
EP1597514A2 EP1597514A2 (de) 2005-11-23
EP1597514A4 true EP1597514A4 (de) 2009-08-26

Family

ID=32930484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04713304A Withdrawn EP1597514A4 (de) 2003-02-21 2004-02-20 Polarisationsrückgewinnung durch umlenkung

Country Status (6)

Country Link
EP (1) EP1597514A4 (de)
JP (1) JP2006518486A (de)
KR (1) KR20050103500A (de)
CA (1) CA2515141A1 (de)
TW (1) TWI238901B (de)
WO (1) WO2004077102A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4988209B2 (ja) * 2006-01-13 2012-08-01 三洋電機株式会社 ロッド固定構造及び投写型映像表示装置
EP3021072B1 (de) * 2014-11-14 2016-09-28 Sick Ag Beleuchtungsvorrichtung und Verfahren zur Projektion eines Beleuchtungsmusters

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197913A (ja) * 1987-02-13 1988-08-16 Nec Corp 偏光変換素子
US5884991A (en) * 1997-02-18 1999-03-23 Torch Technologies Llc LCD projection system with polarization doubler
US6288840B1 (en) * 1999-06-22 2001-09-11 Moxtek Imbedded wire grid polarizer for the visible spectrum
WO2002017000A2 (en) * 2000-08-24 2002-02-28 Wavien, Inc. Polarization recovery system for projection displays

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0488301A (ja) * 1990-08-01 1992-03-23 Canon Inc 偏光変換モジュール
JP2850891B2 (ja) * 1996-12-10 1999-01-27 日本電気株式会社 光フィルタモジュールとこれを用いた光増幅装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197913A (ja) * 1987-02-13 1988-08-16 Nec Corp 偏光変換素子
US5884991A (en) * 1997-02-18 1999-03-23 Torch Technologies Llc LCD projection system with polarization doubler
US6288840B1 (en) * 1999-06-22 2001-09-11 Moxtek Imbedded wire grid polarizer for the visible spectrum
WO2002017000A2 (en) * 2000-08-24 2002-02-28 Wavien, Inc. Polarization recovery system for projection displays

Also Published As

Publication number Publication date
KR20050103500A (ko) 2005-10-31
WO2004077102A2 (en) 2004-09-10
CA2515141A1 (en) 2004-09-10
TW200422665A (en) 2004-11-01
WO2004077102A3 (en) 2005-05-12
TWI238901B (en) 2005-09-01
JP2006518486A (ja) 2006-08-10
EP1597514A2 (de) 2005-11-23

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EP1597514A2 (de) Polarisationsrückgewinnung durch umlenkung
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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20051114

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WAVIEN, INC.

A4 Supplementary search report drawn up and despatched

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 20091022