公开(公告)号：US20170159907A1

公开(公告)日：2017-06-08

申请号：US15366585

申请日：2016-12-01

Applicant: Dyson Technology Limited

Inventor： Jacob DYSON ,  Paul Dominic WHITTAKER ,  William John DARVILL

IPC: F21V7/00 ,  F21V14/04 ,  F21V29/71 ,  F21V29/76 ,  F21S8/06 ,  F21S8/04

CPC classification number: F21V7/0016 ,  F21S8/04 ,  F21S8/06 ,  F21V7/0025 ,  F21V7/0033 ,  F21V7/16 ,  F21V7/18 ,  F21V11/18 ,  F21V11/183 ,  F21V11/186 ,  F21V14/04 ,  F21V29/71 ,  F21V29/763

Abstract: A lighting device includes a baffle extending about an optical axis to surround a light source, and a reflector module connected to the baffle. The reflector module includes a main reflector having a light exit opening from which a light output of the lighting device is projected towards a target area, the optical axis passing through the opening, and reflective surfaces adjacent to the opening for reflecting light incident thereon away from the opening. The reflector module further includes auxiliary reflectors for adjusting the shape of the light output of the lighting device. Each auxiliary reflector has a reflective surface, and is moveable relative to the main reflector between a stowed position and a deployed position in which at least part of the reflective surface of the auxiliary reflector is exposed, by the opening of the main reflector, to reflect light incident thereon away from the target area.