US 12,078,321 B2
Wide-aperture light unit
Philippe Natchoo, Roissy-en-brie (FR); Charles Comperat, Saint-Ouen-sur-Seine (FR); Sylvain Strazielle, Montreuil (FR); Simon Blatrix, Paris (FR); and Aurélien Linz, Nozay (FR)
Assigned to ARTEFFECT, Romainville (FR)
Appl. No. 17/995,443
Filed by ARTEFFECT, Romainville (FR)
PCT Filed Apr. 7, 2021, PCT No. PCT/EP2021/059075
§ 371(c)(1), (2) Date Oct. 4, 2022,
PCT Pub. No. WO2021/204882, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 2003482 (FR), filed on Apr. 7, 2020.
Prior Publication US 2023/0175672 A1, Jun. 8, 2023
Int. Cl. F21V 14/04 (2006.01); F21V 7/00 (2006.01); F21V 14/02 (2006.01); F21W 131/406 (2006.01)
CPC F21V 14/04 (2013.01) [F21V 7/0066 (2013.01); F21V 14/02 (2013.01); F21W 2131/406 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A wide-aperture light device, configured to emit at least one light beam comprising:
an emitter system configured to emit at least one light beam, the beam or beams being emitted in an angular range of 360° around said emitter system;
a reflector system surrounding the emitter system, arranged to receive each light beam propagating from the emitter system and to reflect each light beam received towards the outside of the light device;
the reflector system comprises a frame surrounding the emitter system and bearing a reflective surface extending around the emitter system, between two opposite edges of the frame; and the reflector system is mounted driveable in displacement with respect to the emitter system, so that they can be positioned relatively with respect to one another in order to modify the interception zone of the beam emitted by the emitter system, along the reflective surface of the reflector system;
the device further comprising means for driving the reflector system in displacement with respect to the emitter system, which are means for driving in translation, constituted by a screw and nut system, a slider system, or a rack and pinion system, actuated at least by a motor directly or by using mechanical translation means;
the means for driving in translation comprising two cylinders having a circular transverse cross-section, mounted concentrically, a first of the two cylinders being mounted held fixed in translation, the second cylinder bearing at one free end the reflector system, the second cylinder being mobile in translation along the central axis of the two cylinders; and
the second cylinder having at the one free end linking means arranged to cooperate with complementary linking means provided on the reflector system.