COMPOSITE STRUCTURE OF ILLUMINATION DEVICE AND WIRELESS COMMUNICATION DEVICE, PLACEMENT METHOD FOR ILLUMINATION DEVICE AND WIRELESS COMMUNICATION DEVICE, AND ILLUMINATION DEVICE-EQUIPPED WIRELESS COMMUNICATION DEVICE PLACED BY SAID PLACEMENT METHOD

Title:

Document Type and Number:

WIPO Patent Application WO/2023/238959

Kind Code:

A1

Abstract:

This composite structure 1 is a structure in which an illumination device 3 and a wireless communication device 17 have been integrated and composited. A light transmission member 7 is placed on the opening side of a micro-foamed resin sheet 15 having a depression-like recessed shape. A light guide space 19 is formed between the molded micro-foamed resin sheet 15 and the light transmission member 7. An LED light source 13 is placed on a substrate 11. A wireless communication device 17 is placed on the back surface side of the micro-foamed resin sheet 15 which is the side opposite to the light guide space 19. In the composite structure 1, the micro-foamed resin sheet 15 placed in front of the wireless communication device 17 functions as a portion of a housing of the illumination device 3, and is placed so as to contact a radio wave-emitting surface of the wireless communication device 17. As a result, it is possible to obtain a composite structure of an illumination device and a wireless communication device that not only excels in light diffusion reflectance properties and low radio wave transmission loss, but also excels in radio wave scattering loss.

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Inventors:

YAMAMOTO SYUNJI (JP)
KIMURA YASUKI (JP)
KAWAI KOICHI (JP)
KOZAWA EIJI (JP)
KOZAWA SATOSHI (JP)

Application Number:

PCT/JP2023/021801

Publication Date:

December 14, 2023

Filing Date:

June 12, 2023

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD (JP)

International Classes:

F21S2/00; F21V3/00; F21V3/06; F21V3/10; F21V7/00; F21V7/24; F21V33/00; G08G1/09; G09F13/04; F21W111/02; F21Y113/10; F21Y115/10

Foreign References:

JP2021099984A	2021-07-01
JP2018082352A	2018-05-24
JP2018137037A	2018-08-30

Attorney, Agent or Firm:

INOUE, Seiichi (JP)

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