US 10,485,069 B2
Illuminating apparatus
Keisuke Seki, Osaka (JP); Shigeru Ido, Osaka (JP); and Kazuhiko Hayashi, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on May 20, 2018, as Appl. No. 15/984,389.
Claims priority of application No. 2017-106812 (JP), filed on May 30, 2017.
Prior Publication US 2018/0352627 A1, Dec. 6, 2018
Int. Cl. H05B 33/08 (2006.01); G09F 13/22 (2006.01); G09F 13/00 (2006.01); G06K 7/14 (2006.01); G09F 13/02 (2006.01); H05B 37/02 (2006.01); F21Y 115/10 (2016.01); F21V 23/00 (2015.01)
CPC H05B 33/0857 (2013.01) [G06K 7/1473 (2013.01); G09F 13/005 (2013.01); G09F 13/02 (2013.01); G09F 13/22 (2013.01); H05B 33/0818 (2013.01); F21V 23/008 (2013.01); F21Y 2115/10 (2016.08); H05B 37/0272 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An illuminating apparatus, comprising:
a first light emitter;
a second light emitter which emits light including more red components than light emitted by the first light emitter; and
a lighting device including a control circuit that obtains a visible light communication signal that causes light emitted by the illuminating apparatus to blink at a rate that is unrecognizable to human eyes and a bright and dark pattern created by the blinking light is a data transmission signal, the control circuit controls a first current supplied to the first light emitter by modulating the first current according to the visible light communication signal, the control circuit controls a second current supplied to the second light emitter by modulating the second current according to the visible light communication signal in reverse phase relative to the first current,
the lighting device supplies, to the second light emitter, the second current modulated in reverse phase relative to the first current, while the first current is supplied to the first light emitter.