Title:
LED LIGHTING APPARATUS
Document Type and Number:
Japanese Patent JP2016091882
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LED lighting apparatus capable of suitably lighting in accordance with a situation of an installation environment.SOLUTION: In the LED lighting apparatus including an LED light-emitting unit 2 provided with a plurality of LED chips 221 and a power supply unit 41 for supplying electric power to the LED light-emitting unit 2, the light-emitting unit 2 is divided into a plurality of light-emitting areas 201-204 respectively including the LED chips 221 and individually lighting a plurality of individual areas AR1-AR4 included in an installation environment. Further, the LED lighting apparatus includes: an illuminance sensor 31 for individually detecting illuminance of the plurality of individual areas AR1-AR4; an illuminance comparison unit 42 for comparing an illuminance measurement result by the illuminance sensor 31 with reference illuminance in each of the plurality of individual areas AR1-AR4; and a control unit 43 for respectively controlling electric power supplied from the power supply unit 41 to the plurality of light-emitting areas 201-204 on the basis of the illuminance comparison results obtained by the illuminance comparison unit 42.SELECTED DRAWING: Figure 1
Inventors:
FURUKAWA SHINICHI
Application Number:
JP2014226907A
Publication Date:
May 23, 2016
Filing Date:
November 07, 2014
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H05B37/02; F21S8/04; F21V9/08; F21V9/16; F21V19/00; F21V21/03; F21V23/00; H01L33/00
Attorney, Agent or Firm:
Minoru Yoshida
Tatsuya Tanaka
Yasumitsu Suzuki
Nao Usui
Fumiaki Doi
Shintaro Suzuki
Keita Kobuchi
Tatsuya Tanaka
Yasumitsu Suzuki
Nao Usui
Fumiaki Doi
Shintaro Suzuki
Keita Kobuchi