Title:
光源からの光の変動を誘発する光学素子
Document Type and Number:
Japanese Patent JP2011528485
Kind Code:
A
Abstract:
An optical element (103) for inducing a variation of light from a light source comprising a reservoir (102) containing a flexible material (104) arranged to form a light guide (104) configured to guide light (200) incoupled into the light guide (104) within a first boundary (105) formed by an interface between the flexible material (104) and a surrounding medium (109) having a refractive index being lower than the refractive index of the flexible material, and a second boundary (107) formed by an interior surface of the reservoir; a surface exciting unit (111) being arranged to induce a time varying distortion of the interface (105) between the flexible material (104) and the surrounding medium (109), wherein the distortion enables outcoupling of light at varying angles. An advantage is that a light guide enables a more compact illumination device as the light source does not need to be arranged underneath the reservoir.
Inventors:
Bone Kamp, Eric
Van der Waal, René Harway
Van der Waal, René Harway
Application Number:
JP2011518046A
Publication Date:
November 17, 2011
Filing Date:
July 10, 2009
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
B44C5/08; F21S10/02; F21S2/00; F21Y101/02; F21Y103/00
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Hitoshi Nagasaka
Shinsuke Onuki
Tadashige Ito
Hitoshi Nagasaka