Title:
照明器具
Document Type and Number:
Japanese Patent JP6643671
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress deterioration of reception sensitivity on radio wave without exposing an antenna.SOLUTION: A lighting fixture X is configured such that on one end side (upper end side) of a side plate 71 of a reflection member 7 fixed to a mounting plate 5, a space S is formed between the side plate 71 and a surface (lower surface) of the mounting plate 5. For the space S, a length along the surface (lower surface) of the mounting plate 5 is equal to or larger than a half of a wavelength of a radio wave, which is a medium of a radio signal. Consequently, the radio signal (radio wave) transmitted from a transmitter enters the reflection member 7 through the space S, and is received at an antenna 600. In other words, although a radio communication device 6 is covered with the metal reflection member 7, the radio signal (radio wave) entering through the space S can be received. Thus, the lighting fixture X can suppress deterioration of reception sensitivity on radio wave without exposing the antenna 600 (antenna storage part 6112).SELECTED DRAWING: Figure 9
Inventors:
Toru Mizoya
Jimbo Yukihiro
Iseki Tsubasa
Keita Sparrow
Jimbo Yukihiro
Iseki Tsubasa
Keita Sparrow
Application Number:
JP2015224167A
Publication Date:
February 12, 2020
Filing Date:
November 16, 2015
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
F21V33/00; F21S8/04; F21V3/06; F21V7/00; F21V19/00
Domestic Patent References:
| JP2006108043A | ||||
| JP2014139944A | ||||
| JP2015037042A | ||||
| JP2010200191A | ||||
| JP2006112866A | ||||
| JP2012059461A |
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki