EP 3004968 A1 20160413 - OPTICAL POLARISATION DEVICE FOR A STEREOSCOPIC IMAGE PROJECTOR
Title (en)
OPTICAL POLARISATION DEVICE FOR A STEREOSCOPIC IMAGE PROJECTOR
Title (de)
OPTISCHE POLARISATIONSVORRICHTUNG FÜR EINEN STEREOSKOPISCHEN BILDPROJEKTOR
Title (fr)
DISPOSITIF DE POLARISATION OPTIQUE POUR UN PROJECTEUR D'IMAGES STEREOSCOPIQUES
Publication
Application
Priority
- FR 1354854 A 20130529
- FR 1450285 A 20140114
- EP 2014061002 W 20140527
Abstract (en)
[origin: WO2014191439A1] The invention concerns an optical polarisation device (3) for a stereoscopic image projector, comprising: - a polarising optical element (304) comprising two beam separating/polarising blades (322, 324) joined to each other; - first (312) and second (314) optical reflectors configured to modify, respectively, the trajectory of first and second reflected light beams such that said reflected and transmitted light beams are projected to form a same stereoscopic image; - first (316), second (318) and third (320) polarisation modulators capable of selectively switching the optical polarisation, respectively, of a transmitted light beam, and of the first and second reflected light beams, between the first and second optical polarisation states; - a control circuit (31) for controlling the polarisation modulators.
IPC 8 full level
G02B 26/08 (2006.01); G02B 27/28 (2006.01); G02B 30/25 (2020.01); G03B 21/14 (2006.01); H04N 13/363 (2018.01)
CPC (source: EP RU US)
G02B 13/02 (2013.01 - US); G02B 13/16 (2013.01 - US); G02B 26/0825 (2013.01 - EP US); G02B 27/283 (2013.01 - EP RU US); G02B 30/24 (2020.01 - RU US); G02B 30/25 (2020.01 - EP US); G02F 1/0136 (2013.01 - EP US); G03B 21/16 (2013.01 - US); G03B 21/28 (2013.01 - US); G03B 35/26 (2013.01 - US); H04N 13/341 (2018.05 - EP US); H04N 13/363 (2018.05 - EP RU US)
Citation (examination)
EP 2846180 A1 20150311 - MASTER IMAGE 3D ASIA LLC [KR]
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014191439 A1 20141204; BR 112015029884 A2 20170725; CN 105324702 A 20160210; CN 111766715 A 20201013; EP 3004968 A1 20160413; RU 2015107546 A 20160927; RU 2669544 C2 20181011; US 2016124238 A1 20160505; US 9740017 B2 20170822
DOCDB simple family (application)
EP 2014061002 W 20140527; BR 112015029884 A 20140527; CN 201480030791 A 20140527; CN 202010738318 A 20140527; EP 14730101 A 20140527; RU 2015107546 A 20140527; US 201414894393 A 20140527