Global Patent Index - EP 2321693 A4

EP 2321693 A4 20140409 - A RECYCLING SYSTEM AND METHOD FOR INCREASING BRIGHTNESS USING LIGHT PIPES WITH ONE OR MORE LIGHT SOURCES, AND A PROJECTOR INCORPORATING THE SAME

Title (en)

A RECYCLING SYSTEM AND METHOD FOR INCREASING BRIGHTNESS USING LIGHT PIPES WITH ONE OR MORE LIGHT SOURCES, AND A PROJECTOR INCORPORATING THE SAME

Title (de)

RECYCLINGSYSTEM UND VERFAHREN FÜR ERHÖHTE HELLIGKEIT MITTELS VERWENDUNG VON HOHLLICHTLEITERN MIT EINER ODER MEHREREN LICHTQUELLEN UND PROJEKTOR DAMIT

Title (fr)

SYSTÈME ET PROCÉDÉ DE RECYCLAGE POUR AUGMENTER LA LUMINOSITÉ EN UTILISANT DES CONDUITS DE LUMIÈRE AVEC UNE OU PLUSIEURS SOURCES DE LUMIÈRE, ET PROJECTEUR INTÉGRANT LESDITS SYSTÈME ET PROCÉDÉ

Publication

EP 2321693 A4 20140409 (EN)

Application

EP 09807413 A 20090817

Priority

  • US 2009054024 W 20090817
  • US 16824909 P 20090410
  • US 20442109 P 20090107
  • US 32147109 A 20090120
  • US 18913908 P 20080815
  • US 16122809 P 20090318

Abstract (en)

[origin: WO2010019945A1] A recycling system and method for increasing the brightness of light output using at least one recycling light pipe with at least one light source. The output end of the recycling light pipe reflects a first portion of the light back to the light source, a second portion the light to the input end of the recycling light pipe, and transmits the remaining portion of the light as output. The recycling system is incorporated into a projector to provide color projected image with increased brightness. The light source can be white LEDs, color LEDs, and dual paraboloid reflector (DPR) lamp.

IPC 8 full level

G02F 1/1335 (2006.01); G02B 27/09 (2006.01); G02B 27/10 (2006.01); G02B 27/14 (2006.01)

CPC (source: EP KR)

G02B 6/04 (2013.01 - KR); G02B 27/0994 (2013.01 - EP); G02B 27/102 (2013.01 - EP); G02B 27/143 (2013.01 - EP); G02B 27/144 (2013.01 - EP); G02B 27/145 (2013.01 - EP); G02B 27/147 (2013.01 - EP); G02F 1/1335 (2013.01 - KR); G03B 21/00 (2013.01 - KR)

Citation (search report)

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 SM TR

DOCDB simple family (publication)

WO 2010019945 A1 20100218; CA 2732358 A1 20100218; CN 102124397 A 20110713; CN 102124397 B 20150819; EP 2321693 A1 20110518; EP 2321693 A4 20140409; JP 2012500413 A 20120105; JP 5875865 B2 20160302; KR 101694191 B1 20170109; KR 20110044295 A 20110428; TW 201011442 A 20100316; TW I493273 B 20150721

DOCDB simple family (application)

US 2009054024 W 20090817; CA 2732358 A 20090817; CN 200980131850 A 20090817; EP 09807413 A 20090817; JP 2011523215 A 20090817; KR 20117005939 A 20090817; TW 98127550 A 20090817