EP 1579700 A1 20050928 - INTEGRATED BEAM SPLITTER AND POLARIZER FOR PROJECTION DISPLAY SYSTEM
Title (en)
INTEGRATED BEAM SPLITTER AND POLARIZER FOR PROJECTION DISPLAY SYSTEM
Title (de)
INTEGRIERTER STRAHLVERZWEIGER UND POLARISIERER FÜR EIN PROJEKTIONSANZEIGESYSTEM
Title (fr)
DIVISEUR DE FAISCEAU ET POLARISEUR INTEGRES POUR SYSTEME D'AFFICHAGE PAR PROJECTION
Publication
Application
Priority
- IB 0306056 W 20031211
- US 43524902 P 20021220
Abstract (en)
[origin: WO2004059989A1] An integrated beam splitter and polarizer (30) for a projection display system (80) includes a light guide array (32) having an exit face (W) for providing unpolarized white light, and having an array of entrance faces (36, 38, 40) for accepting colored light, a polarization beam splitter (42) for splitting the white light into polarized light of two different polarization states, two sets of color filters (Fl and F2) for splitting the white light into colored light, and for directing the light of different polarization states onto different sides of the array of exit faces, and a wave plate (52) for converting the colored light of one polarization state to colored light of the other polarization state.
IPC 1-7
IPC 8 full level
G02B 6/34 (2006.01); G02B 6/42 (2006.01); G02B 27/28 (2006.01); H04N 9/31 (2006.01)
CPC (source: EP KR)
G02B 5/30 (2013.01 - KR); G02B 6/2713 (2013.01 - EP); G02B 6/29361 (2013.01 - EP); G02B 6/4298 (2013.01 - EP); G02B 27/283 (2013.01 - EP); H04N 9/31 (2013.01 - KR); H04N 9/3117 (2013.01 - EP)
Citation (search report)
See references of WO 2004059989A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
WO 2004059989 A1 20040715; AU 2003303454 A1 20040722; CN 1729699 A 20060201; EP 1579700 A1 20050928; JP 2006510949 A 20060330; KR 20050088391 A 20050905; TW 200507656 A 20050216
DOCDB simple family (application)
IB 0306056 W 20031211; AU 2003303454 A 20031211; CN 200380106659 A 20031211; EP 03813961 A 20031211; JP 2004563464 A 20031211; KR 20057011271 A 20050617; TW 92135786 A 20031217