Title (en)

LIGHTING DEVICE

Title (de)

BELEUCHTUNGSVORRICHTUNG

Title (fr)

DISPOSITIF D'ÉCLAIRAGE

Publication

EP 3770491 A1 20210127 (EN)

Application

EP 20187725 A 20200724

Priority

CH 9452019 A 20190724

Abstract (en)

A lighting device (1) comprises a plurality of LED light sources (2) each provided with a collimating member (3) having a main direction of light propagation (33), and an at least partially transparent optical arrangement (4, 6) positioned adjacent to the collimating members (3) such that light generated by the LED light sources (2) and propagated by the collimating members (3) into the main direction of light propagation (33) passes through the optical arrangement (4, 6). The optical arrangement (4, 6) has a microstructure (41) with a plurality of refractive cells (43) configured to shape the light passing through the optical arrangement (4, 6). Each of the plurality of refractive cells has a shoulder angle relative to the main direction of light propagation and the plurality of refractive cells (43) has refractive cells (43) with differing shoulder angles.

IPC 8 full level

F21V 5/00 (2018.01); F21V 7/00 (2006.01)

CPC (source: EP)

F21V 5/002 (2013.01); F21V 7/0083 (2013.01); F21V 5/005 (2013.01); F21V 5/007 (2013.01); F21Y 2105/10 (2016.07); F21Y 2115/10 (2016.07)

Citation (search report)

• [Y] WO 2011010247 A2 20110127 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
• [Y] WO 2017050929 A1 20170330 - REGENT BELEUCHTUNGSKÖRPER AG [CH]
• [A] US 2018335191 A1 20181122 - STEFANOV EMIL P [DE], et al
• [A] WO 2016083274 A1 20160602 - PHILIPS LIGHTING HOLDING BV [NL]
• [A] US 2011280018 A1 20111117 - VISSENBERG MICHEL C J M [NL], et al
• [A] WO 2010007504 A1 20100121 - FRAEN CORP SRL [IT], et al
• [A] NL 2019706 B1 20190419 - ETAP NV [BE]
• [A] EP 2647904 A1 20131009 - SITECO BELEUCHTUNGSTECH GMBH [DE]

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)

EP 3770491 A1 20210127

DOCDB simple family (application)

EP 20187725 A 20200724