EP 3254022 A1 20171213 - RECYCLING OF LIGHT WITH SOLID AND HOLLOW LIGHT PIPES
Title (en)
RECYCLING OF LIGHT WITH SOLID AND HOLLOW LIGHT PIPES
Title (de)
RECYCLING VON LICHT MIT FESTE UND HOHLEN LICHTRÖHREN
Title (fr)
RECYCLAGE DE LUMIÈRE AVEC CONDUITS DE LUMIÈRE PLEINS ET CREUX
Publication
Application
Priority
- US 201562112781 P 20150206
- US 2016016907 W 20160206
Abstract (en)
[origin: WO2016127145A1] The present invention is a device for recycling light emitted from an LED light source having one or more LEDs mounted on a heatsink. The device includes a tapered light pipe being rectangular or circular in shape, having an input end smaller than the output end. The LEDs are coupled to the input end. The output end is coupled to a hollow tunnel with a reflective interior surface with the other end of the hollow tunnel covered by a mirror directed toward the interior surface of the hollow tunnel. The mirror having an output aperture about the middle and a reflective interior surface guiding light emitted from the LEDs toward the output aperture. The mirror reflects part of the light emitted from the LEDs that does not exit the output aperture thereby recycling the light and increasing the brightness of light emitted through the output aperture.
IPC 8 full level
F21V 7/04 (2006.01); H01L 33/60 (2010.01)
CPC (source: EP KR)
G02B 6/0006 (2013.01 - EP KR); G02B 6/0008 (2013.01 - EP KR); G02B 6/0096 (2013.01 - EP); H01L 33/58 (2013.01 - KR); H01L 33/58 (2013.01 - EP)
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 2016127145 A1 20160811; CA 2945662 A1 20160811; CN 106537032 A 20170322; EP 3254022 A1 20171213; EP 3254022 A4 20180725; JP 2018510448 A 20180412; KR 20170116001 A 20171018
DOCDB simple family (application)
US 2016016907 W 20160206; CA 2945662 A 20160206; CN 201680002096 A 20160206; EP 16747399 A 20160206; JP 2017515916 A 20160206; KR 20177006203 A 20160206