EP 2227717 A1 20100915 - SPECTACLES FOR THE THREE-DIMENSIONAL VIEWING OF DIGITAL VIDEO CONTENT FROM A PROJECTOR
Title (en)
SPECTACLES FOR THE THREE-DIMENSIONAL VIEWING OF DIGITAL VIDEO CONTENT FROM A PROJECTOR
Title (de)
BRILLE ZUR DREIDIMENSIONALEN ANSICHT DIGITALER VIDEOINHALTE AUF EINEM PROJEKTOR
Title (fr)
LUNETTE DE VISUALISATION EN TROIS DIMENSIONS DE CONTENUS VIDEO NUMERIQUES EMIS PAR UN PROJECTEUR
Publication
Application
Priority
- EP 2009050126 W 20090107
- FR 0850116 A 20080109
Abstract (en)
[origin: WO2009087170A1] The invention relates to liquid crystal (18) spectacles (10) used for the three-dimensional viewing of digital video content from a projector. The viewing spectacles (10) only include a first rectilinear polariser (12) and a second rectilinear polariser (13) respectively having polarisation axes P1 and P2, the polarisation axes P1 and P2 being parallel or perpendicular relative to each other. Furthermore, the liquid crystal (18) has an adapted intrinsic tilt angle a (preferably 22.5°) and is used in a half-wave blade configuration. The liquid crystal (18) further includes first and second separate areas (181, 182) each respectively located opposite a vision axis. The first area (181) includes a first director and the second area (182) includes a second director (182). The first and second directors are oriented so as to define an adapted angle between them (preferably 45°). This enables a "non-one-eyed" vision while waiting for the projection of the film to start, and to obtain the best possible contrast between the two eyes of the user when viewing the digital video content.
IPC 8 full level
G02F 1/1337 (2006.01); G02C 7/10 (2006.01); H04N 13/00 (2006.01)
CPC (source: EP US)
G02C 7/101 (2013.01 - EP US); G02C 7/12 (2013.01 - EP US); G02F 1/133753 (2013.01 - EP US); H04N 13/337 (2018.04 - EP US); H04N 13/398 (2018.04 - EP US)
Citation (search report)
See references of WO 2009087170A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2926144 A1 20090710; FR 2926144 B1 20100205; EP 2227717 A1 20100915; US 2011018984 A1 20110127; US 8508586 B2 20130813; WO 2009087170 A1 20090716
DOCDB simple family (application)
FR 0850116 A 20080109; EP 09701301 A 20090107; EP 2009050126 W 20090107; US 81234309 A 20090107