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Title:
LIGHTING APPARATUS, TRAFFIC SIGNAL LIGHTING APPARATUS, TRAFFIC SIGNAL CONTROL UNIT, AND ANTENNA UNIT
Document Type and Number:
Japanese Patent JP2009157631
Kind Code:
A
Abstract:

To provide a signal lighting apparatus incorporating an antenna as a new technological means for making it unnecessary to provide any support for antenna installation, and for preventing the fine sight of a road from being impaired.

A lighting apparatus 1 includes an optical unit 2 and an antenna 4. The optical unit 2 includes an LED 7; a substrate 8 with the LED 7 mounted on the front surface thereof; and a cover member 9 having visible light permeability which covers the LED 7 in front. The antenna 4 includes a patch element 11 arranged in a range from the cover member 9 to the front end of the LED 7 and a ground element 12 at the rear of the patch element 11. The patch element 11 having visible light permeability is supported by a support member 10 arranged in front of a substrate 8.


Inventors:
YAMAGISHI TAKASHI
Application Number:
JP2007000334830
Publication Date:
July 16, 2009
Filing Date:
December 26, 2007
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
G08G1/095; E01F9/00; F21S2/00; G08G1/09; H01Q1/44; H01Q13/08
Domestic Patent References:
JPH0669708A1994-03-11
JP2005135904A2005-05-26
JP2005099889A2005-04-14
Attorney, Agent or Firm:
特許業務法人サンクレスト国際特許事務所