LIGHTING DEVICE WITH ELASTIC ENVELOPE

摘要

A lighting device (100, 200, 300, 400) is disclosed, comprising an at least partly light transmitting envelope (110) arranged to at least partly enclose a light source (120). The envelope comprises a portion (114) that is elastic such that its extension and orientation relative to a nominal optical axis of a base (140) of the lighting device is adjustable so as to allow for light output from the lighting device to be modified. A method for manufacturing such lighting device is also disclosed.

主权项

1. A lighting device, comprising:
a light source; a base arranged to extend along a nominal optical axis; and an at least partly light-transmitting envelope arranged to at least partly enclose the light source; the at least partly light-transmitting envelope comprising: a first portion comprising an optical structure and adapted to output at least part of light emitted by the light source; and a second portion being elastic such that its extension and orientation relative to the nominal optical axis is adjustable, said second portion being attached to the base of the lighting device and arranged between the base and the first portion, and wherein the second portion is extendible and compressible such that a focal point of the first portion is moveable at least along the nominal optical axis.