Title:
Devices and methods for time division multiplexing switchable optics for controllable lighting
Document Type and Number:
Japanese Patent JP6320994
Kind Code:
B2
Abstract:
Methods and apparatus for electrically controlling a luminaire to alter its appearance and illumination effects are disclosed. A luminaire (100) having a multiplexing controller controlling one or more LED light sources (110) and one or more electrically switchable optical elements (150). The light sources are switched between at least two illumination states and the optical elements are switched between at least two optical states during an illumination period. The switching sequence is fast enough not to be detected by an observer. As a result the lighting module or luminaire is perceived to have a substantially continuous light output. The multiplexing controller rapidly time sequences the states of light sources and switchable surfaces to produce visual changes to the luminaire and/or objects illuminated by the luminaire.
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Inventors:
Edwards Martin John
Application Number:
JP2015506338A
Publication Date:
May 09, 2018
Filing Date:
April 16, 2013
Export Citation:
Assignee:
Philips Lighting Holding BV
International Classes:
H05B37/02; H05B44/00; F21V9/40
Domestic Patent References:
| JP2005353415A | ||||
| JP2007207452A | ||||
| JP2002164182A | ||||
| JP2012503290A | ||||
| JP2009199833A | ||||
| JP2010027586A |
Foreign References:
| WO2011162024A1 | ||||
| WO2011030578A1 | ||||
| US20100226128 |
Attorney, Agent or Firm:
Patent Services Corporation m&s Partners