Title:
トンネル入口部照明システム
Document Type and Number:
Japanese Patent JP5726601
Kind Code:
B2
Abstract:
The present invention dramatically reduces energy consumption while retaining the performance of entrance lighting in a tunnel using artificial lighting for the entrance lighting. A tunnel entrance lighting system (20A) is configured from: a pre-acclimatization structure (12A) which is provided to the front side of the mouth (10a) of a tunnel (10), comprises a plurality of solar cell panels (21), generates indirect light (902) from natural light (901) by means of the light modulation gap (21a) of each solar cell panel (21), and constitutes a pre-acclimatization segment (LA) for controlling the road surface luminance distribution that gradually decreases in the direction towards the mouth (10a) on the road (11); and a plurality of lighting lamp fittings (22) which is disposed in the interior of the tunnel (10) in the vicinity of the mouth (10a) and which lights up by means of the power supplied from the solar cell panels (21) via a wire (23). Different load resistors (RW) are disposed on the respective branching wires (23a) for connecting each lighting lamp fittings (22) with the wire (23) such that the road surface luminance distribution gradually decreases in the advancing direction of the tunnel (10) from the mouth (10a).
Inventors:
Masayoshi Sakamoto
Kiyohiro Utsunomiya
Sugioka Teruhisa
Arahira Teruaki
Kiyohiro Utsunomiya
Sugioka Teruhisa
Arahira Teruaki
Application Number:
JP2011082178A
Publication Date:
June 03, 2015
Filing Date:
April 01, 2011
Export Citation:
Assignee:
West Japan Expressway Engineering Kansai Co., Ltd.
International Classes:
H05B37/02; F21S2/00; F21S9/03; F21S11/00; F21V11/04
Domestic Patent References:
| JP9022610A | ||||
| JP7034617A | ||||
| JP59165304A | ||||
| JP2011018467A | ||||
| JP2002997U | ||||
| JP3109422U | ||||
| JP2001241299A | ||||
| JP2010065467A |
Attorney, Agent or Firm:
Yoshiyuki Osuga