Flugzeuginnenraumlichteinheit und Verfahren zum Betrieb einer Flugzeuginnenraumlichteinheit

Details

Veröffentlichungs-Nr.

EP3118843

Aktenzeichen

EP15177242

Anmeldetag

17. Juli 2015

Veröffentlichung

8. April 2020

Erteilung

8. April 2020

Rechtsraum

EP

IPC

G09F13/04G09F21/10F21V33/00G02B6/00// G09F9/302G09F9/33G09F13/16G09F13/18G09F13/22

Abstract

An aircraft interior light unit (2) having a light output over an extended light emission area (32) includes a flat light distribution body (6) having a front surface (8), through which the light output is coupled out, and a back surface (10), wherein at least one of the front surface (8) and the back surface (10) of the flat light distribution body (6) has a plurality of surface irregularities (16); at least one general illumination LED (4) positioned at a lateral outside of the flat light distribution body (6), with light emitted by the at least one general illumination LED (4) being coupled into the flat light distribution body (6) and being propagated within the flat light distribution body (6) via total internal reflection at the front and back surfaces (8, 10) and with light from the at least one general illumination LED (4) being redirected at the plurality of surface irregularities (16) for being coupled out of the flat light distribution body (6) and for providing a general illumination over the extended light emission area (32); a plurality of signalling LEDs (40) being arranged outside of the flat light distribution body (6) and facing towards the back surface (10) of the flat light distribution body (6); and a translucent panel (42) arranged between the back surface (10) of the flat light distribution body (6) and the plurality of signalling LEDs (40), with light emitted from the plurality of signalling LEDs (40) passing through the translucent panel (42) and the flat light distribution body (6), forming high luminance spots (34) in the light output.

Anmelder

Firma

Goodrich Lighting Systems GmbH

Land

🇩🇪 Deutschland

Fachgebiete