EP 3286494 A1 20180228 - A DEVICE FOR MODIFYING LIGHT DISTRIBUTION
Title (en)
A DEVICE FOR MODIFYING LIGHT DISTRIBUTION
Title (de)
VORRICHTUNG ZUR MODIFIZIERUNG DER LICHTVERTEILUNG
Title (fr)
DISPOSITIF PERMETTANT DE MODIFIER LA RÉPARTITION LUMINEUSE
Publication
Application
Priority
- EP 15165078 A 20150424
- FI 2016050266 W 20160422
Abstract (en)
[origin: EP3086026A1] A device for modifying light distribution comprises a reflector surface (310) whose shape is at least partly based on a shape transformation directed to a geometric auxiliary surface (330). The shape transformation comprises i) division of the geometric auxiliary surface into longitudinal geometric surface segments (314', 315'), ii) displacements of at least some of the surface segments sideward so as to achieve a desired shape, and iii) addition of geometric connection-surfaces (316) between surface segments that are at least partly separated from each other by the displacements so as to form a stepped geometric surface corresponding to at least a part of the reflector surface. The geometric auxiliary surface can be selected according to a desired intensity distribution within an illumination pattern formable on a planar surface, whereas the shape obtained with the shape transformation can be selected according to the desired shape of the illumination pattern.
IPC 8 full level
CPC (source: EP)
F21V 7/048 (2013.01); F21V 7/16 (2013.01)
Citation (search report)
See references of WO 2016170234A1
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 3086026 A1 20161026; EP 3286494 A1 20180228; EP 3286494 B1 20191120; HK 1250775 A1 20190111; WO 2016170234 A1 20161027
DOCDB simple family (application)
EP 15165078 A 20150424; EP 16721850 A 20160422; FI 2016050266 W 20160422; HK 18110147 A 20180807