WO2005022926A1 - Systeme d'eclairage a guide d'onde pour des systemes de projection a cristaux liquides transmissifs - Google Patents

Systeme d'eclairage a guide d'onde pour des systemes de projection a cristaux liquides transmissifs Download PDF

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Publication number
WO2005022926A1
WO2005022926A1 PCT/IB2004/051429 IB2004051429W WO2005022926A1 WO 2005022926 A1 WO2005022926 A1 WO 2005022926A1 IB 2004051429 W IB2004051429 W IB 2004051429W WO 2005022926 A1 WO2005022926 A1 WO 2005022926A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical circuit
circuit element
window system
projection system
Prior art date
Application number
PCT/IB2004/051429
Other languages
English (en)
Inventor
Willem H. Smits
Adrianus J. S. M. De Vaan
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2005022926A1 publication Critical patent/WO2005022926A1/fr

Links

Classifications

    • 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]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • 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
    • H04N9/3167—Modulator illumination systems for polarizing the light beam

Abstract

L'invention concerne un système de projection (200) comportant une lampe de projection (202) générant une lumière, un élément de circuit optique (206) tel qu'un intégrateur à guide d'onde ou à lame de phase polarisant la lumière, et des modulateurs de lumière (226, 228, 230) destinés à moduler la lumière polarisée par l'élément de circuit optique (206). L'objet de l'invention est de réduire efficacement la longueur de l'élément de circuit optique (206).
PCT/IB2004/051429 2003-08-28 2004-08-09 Systeme d'eclairage a guide d'onde pour des systemes de projection a cristaux liquides transmissifs WO2005022926A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03103241.0 2003-08-28
EP03103241 2003-08-28

Publications (1)

Publication Number Publication Date
WO2005022926A1 true WO2005022926A1 (fr) 2005-03-10

Family

ID=34259225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/051429 WO2005022926A1 (fr) 2003-08-28 2004-08-09 Systeme d'eclairage a guide d'onde pour des systemes de projection a cristaux liquides transmissifs

Country Status (2)

Country Link
TW (1) TW200513126A (fr)
WO (1) WO2005022926A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295009A (en) * 1989-07-10 1994-03-15 Hoffmann-La Roche Polarizer device
EP1098536A2 (fr) * 1999-11-05 2001-05-09 Texas Instruments Incorporated Récupération de couleur séquentielle pour systèmes de projection
EP1274257A1 (fr) * 2001-07-06 2003-01-08 Barco N.V. Procédé et dispositif de génération de lumière polarisée

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295009A (en) * 1989-07-10 1994-03-15 Hoffmann-La Roche Polarizer device
EP1098536A2 (fr) * 1999-11-05 2001-05-09 Texas Instruments Incorporated Récupération de couleur séquentielle pour systèmes de projection
EP1274257A1 (fr) * 2001-07-06 2003-01-08 Barco N.V. Procédé et dispositif de génération de lumière polarisée

Also Published As

Publication number Publication date
TW200513126A (en) 2005-04-01

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