(19)
(11) EP 2 711 621 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.06.2014 Bulletin 2014/25

(43) Date of publication A2:
26.03.2014 Bulletin 2014/13

(21) Application number: 13182387.4

(22) Date of filing: 30.08.2013
(51) International Patent Classification (IPC): 
F21V 17/16(2006.01)
 F21V 19/00(2006.01)
(84) Designated Contracting States:
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 States:
BA ME

(30) Priority: 24.09.2012 IT TO20120824

(71) Applicants:
  • OSRAM GmbH
    80807 München (DE)
  • OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
    20126 Milano (IT)

(72) Inventors:
  • Sagliocco, Alessio
    30027 San Donà di Piave (IT)
  • Vianello, Davide
    30038 Spinea (IT)

   


(54) Optical assembly for lighting sources


(57) An optical assembly (12) for lighting sources (L) includes a cup-shaped reflector (14) having a bottom portion (14a) for mounting a light radiation source and a mouth portion (14b) for projecting the light radiation, the mouth portion (14b) having a peripheral rim (140). A light-permeable screen (16) peripherally rests on the rim (140) of the mouth portion (14b) of the reflector (14). Provision is made of a front ring (18) forming a receiving frame for the screen (16) to arrange the screen (16) sandwiched between the reflector (14) and an annular inner side (18a) of the front ring (18). The front ring (18) has a plurality of cusp formations (18b) protruding from the annular inner side (18a) to surround the reflector (14). An annular assembly spring (20) is coupleable to the front ring (18) to urge the reflector (14) and the screen (16) towards the annular inner side (18a) of the front ring (18); the assembly spring (20) has a plurality of cusps having distal ends (200) coupled to the cusp formations (18b) of the front ring (18).







Search report









Search report