Title:
動的な照明効果を備える照明装置
Document Type and Number:
Japanese Patent JP5508417
Kind Code:
B2
Abstract:
The invention provides a lighting device comprising a housing. The housing comprises visible-light sources (10) arranged to generate visible light (11), UV-lightsources (12) arranged to generate UV-light (13), a light exit window (14) positioned to allow transmission of the visible light (11), a photochromic layer (16) positioned upstream of the light exit window (14) and downstream of the visible light sources (10), the photochromic layer (16) comprising at least one area with UV-photochromic material (15), the UV-photochromic material (15) having a first color state and a second color state, and a control unit (40) connected to the UV-light sources (12) for controlling the UV-light sources (12), wherein the UV-light sources are arranged to illuminate the photochromic layer (16). The invention makes it possible to obtain dynamic light effects.
Inventors:
Tang Peter Thies Kay
Oplan Constantine A
Pill Stuart Earl
Petztti daniel kay
Oplan Constantine A
Pill Stuart Earl
Petztti daniel kay
Application Number:
JP2011521671A
Publication Date:
May 28, 2014
Filing Date:
August 03, 2009
Export Citation:
Assignee:
KONINKLIJKE PHILIPS N.V.
International Classes:
F21S10/02; F21V9/06; F21V9/40; F21V17/00; F21V23/00; H05B37/02; F21Y101/02
Domestic Patent References:
| JP2007086266A | ||||
| JP2006285231A |
Foreign References:
| US3323244 |
Attorney, Agent or Firm:
Susumu Tsugaru
Fueda Shusen
Sakiko Shibata
Fueda Shusen
Sakiko Shibata