EP 2875391 A1 20150527 - DEVICE AND METHOD FOR EMITTING A LIGHT BEAM INTENDED TO FORM AN IMAGE, PROJECTION SYSTEM, AND DISPLAY USING SAID DEVICE
Title (en)
DEVICE AND METHOD FOR EMITTING A LIGHT BEAM INTENDED TO FORM AN IMAGE, PROJECTION SYSTEM, AND DISPLAY USING SAID DEVICE
Title (de)
VORRICHTUNG UND VERFAHREN ZUM AUSSENDEN EINES LICHTSTRAHLS ZUR ERZEUGUNG EINES BILDES, PROJEKTIONSSYSTEM UND ANZEIGE MIT DIESER VORRICHTUNG
Title (fr)
DISPOSITIF ET PROCEDE D'EMISSION D'UN FAISCEAU LUMINEUX DESTINE A FORMER UNE IMAGE, SYSTEME DE PROJECTION ET AFFICHEUR UTILISANT LEDIT DISPOSITIF
Publication
Application
Priority
- FR 1256958 A 20120718
- FR 2013000187 W 20130716
Abstract (en)
[origin: WO2014013144A1] The invention concerns a device for emitting a light beam (10) intended to form an image, the device comprising one or more sources (4, 5, 6), each emitting a laser-type beam (7, 8, 9), the device being designed to form the light beam (10) from the one laser beam (7, 8, 9) or from a combination of the laser beams, the device comprising attenuation means (12), disposed downstream of the source(s) (3, 4, 5), enabling the optical power of the light beam (10) to be varied, the attenuation means (12) comprising one or more retractable filters (20) which can be interposed in the beam or beams (7, 8, 9,10).
IPC 8 full level
G02B 5/20 (2006.01); G02B 26/02 (2006.01); G02B 27/01 (2006.01); G02B 27/02 (2006.01); H04N 9/31 (2006.01)
CPC (source: CN EP US)
G02B 5/20 (2013.01 - CN EP US); G02B 5/205 (2013.01 - CN EP US); G02B 26/023 (2013.01 - CN EP US); G02B 27/0101 (2013.01 - CN EP US); G02B 27/106 (2013.01 - US); G02B 27/141 (2013.01 - US); G02B 2027/0114 (2013.01 - US); G02B 2027/0118 (2013.01 - CN EP US); G02B 2027/0154 (2013.01 - CN EP US)
Citation (search report)
See references of WO 2014013144A1
Citation (examination)
JP H11109882 A 19990423 - MINOLTA CO LTD
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 2014013144 A1 20140123; CN 104813201 A 20150729; EP 2875391 A1 20150527; FR 2993677 A1 20140124; FR 2993677 B1 20150327; JP 2015525899 A 20150907; JP 2018189969 A 20181129; KR 20150063031 A 20150608; US 10215979 B2 20190226; US 2015205093 A1 20150723
DOCDB simple family (application)
FR 2013000187 W 20130716; CN 201380042896 A 20130716; EP 13756538 A 20130716; FR 1256958 A 20120718; JP 2015522136 A 20130716; JP 2018122415 A 20180627; KR 20157001268 A 20130716; US 201314415154 A 20130716