Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Toshihiko Sasai0
Naoko Iwai0
Sayaka Tomiyama0
Toru Ishikita0
Hiromichi Nakajima0
Hitoshi Kawano0
Masahiko Kamata0
Masatoshi Kumagai0
Date of Patent
February 10, 2015
Patent Application Number
13331839
Date Filed
December 20, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An illuminating device includes a plurality of kinds of LEDs that emit light having different color temperatures; a plurality of LED lighting circuits that independently light the LEDs for each color temperature of emitted light; and a control unit that selects a first control changing illuminance of the LEDs as a whole by controlling the lighting of the LEDs and a second control changing the colors of light of the LEDs as a whole by controlling the lighting of the LEDs, and corrects an illuminance difference generated before and after the second control.
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