TUNNEL ENTRANCE LIGHTING SYSTEM

• Main Authors: SUGIOKA, TERUHISA, ARAHIRA, TERUAKI, SAKAMOTO, SHO'ETSU, UTSUNOMIYA, KIYOHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 11.10.2012
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; EARTH DRILLING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FIXED CONSTRUCTIONS; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GALLERIES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; NON-PORTABLE LIGHTING DEVICES; SHAFTS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TUNNELS; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

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). La présente invention réduit de manière spectaculaire une consommation d'énergie tout en conservant les performances d'un éclairage d'entrée dans un tunnel à l'aide d'un éclairage artificiel pour l'éclairage d'entrée. Un système d'éclairage d'entrée de tunnel (20A) est configuré à partir : d'une structure de préacclimatation (12A) qui est disposée sur le côté avant de l'embouchure (10a) d'un tunnel (10), comprend une pluralité de panneaux de cellule solaire (21), génère une lumière indirecte (902) à partir d'une lumière naturelle (901) au moyen de l'espace de modulation de lumière (21a) de chaque panneau de cellule solaire (21), et constitue un segment de préacclimatation (LA) pour commander la distribution de luminance de la surface de route qui diminue progressivement dans la direction vers l'embouchure (10a) sur la route (11) ; et une pluralité de luminaires (22) qui sont disposés dans l'intérieur du tunnel (10) au voisinage de l'embouchure (10a) et qui éclairent au moyen d'une alimentation fournie à partir des panneaux de cellule solaire (21) par l'intermédiaire d'un câble (23). Différentes résistances de charge (RW) sont disposées sur les câbles de raccordement respectifs (23a) pour connecter chacun des luminaires (22) avec le câble (23) de sorte que la distribution de luminance de la surface de route diminue progressivement dans la direction d'avancement du tunnel (10) à partir de l'embouchure (10a).