Title:
LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2017021993
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting fixture capable of achieving cost reduction.SOLUTION: A lighting fixture comprises: a light source unit 5; a power supply circuit unit 4; and a circuit board 3. The light source unit 5 is provided in an outer region 33 of the circuit board 3 while the power supply circuit unit 4 is provided in an inner region 34 thereof. The outer region 33 is configured by a plurality of first regions 331 and a plurality of second regions 332 alternately adjacent to one another. A plurality of first light-emitting diodes 511 are disposed in the first regions 331. A plurality of second light-emitting diodes 512 are disposed in the second regions 332. A difference between a smallest distance and a largest distance, out of distances from the plurality of first light-emitting diodes 511 to a central portion 30 of the circuit board 3, is assumed as a first distance difference. A difference between a smallest distance and a largest distance, out of distances from the plurality of second light-emitting diodes 512 to the central portion 30 of the circuit board 3, is assumed as a second distance difference. The first distance difference is smaller than the second distance difference.SELECTED DRAWING: Figure 3
Inventors:
SUGIURA TOMOHIRO
SAKURADA TAKAHISA
SORA YUJI
YASUKAWA TATSUNAGA
SAKURADA TAKAHISA
SORA YUJI
YASUKAWA TATSUNAGA
Application Number:
JP2015138922A
Publication Date:
January 26, 2017
Filing Date:
July 10, 2015
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F21V23/00; F21V19/00
Domestic Patent References:
| JP2014212125A | 2014-11-13 | |||
| JP2014204078A | 2014-10-27 | |||
| JP2014232639A | 2014-12-11 | |||
| JP2015005524A | 2015-01-08 |
Attorney, Agent or Firm:
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki