Directional Signs at Japan's Leading International Airport.

The directional signs hanging from the ceiling at the Terminal 1 check-in counters feature letters of the alphabet.
For many years, these have been illuminated using ceramic metal halide lamps.

One of these broke down, leading to a search for LED lighting options.

And recently, metal halide tubes and their electrical ballasts have become difficult to obtain, and there have been problems with manufacturer warranties.

Narita International Airport Corporation visited our website and viewed the posted case study photos, such as the small islands and letters on a mountain illuminated at a distance, as well as illuminated factory signs.

We brought a sample right away and had the customer use the lighting and check the illumination on site.

Because we offer lenses with different angles of illumination in one-degree increments, it is possible to check the correct beam angle on site.

As a benefit after the actual installation of our LEDSFOCUS PRO floodlights, power consumption was reduced by 40%, and the periodic replacement of the metal halide lamps is no longer required.

Up until now, the light sources were installed at ceiling height about 2m from the directional signs, which negatively impacted work efficiency during maintenance and involved the risk of falls. This has been reduced.

As LED floodlights can be used to accurately illuminate from a distance, they can be installed on top of check-in counters 8–10m away, which improves workability and safety compared lights installed on the ceiling.

In addition, the lighting seemed to cause halation previously.
Visibility has been improved due to the uniform distribution from our LEDSFOCUS PRO floodlights.
(Halation visible on the B counter directional sign)

In addition, our 4-lamp LEDSFOCUS PRO model has been introduced in a commercial facility.

Terminal 1 has restaurants and shops between the North and South wings, and this model was also used to illuminate the billboard in that hall.

This billboard was originally illuminated using an internal lighting system, but because of the high ceiling in the hall and the existence of an escalator in front of it, changing the lighting inside the billboard and other maintenance proved difficult. A new lighting system with LED floodlights was adopted in its place.

Uniform light illuminates the surface, which originally used an internal lighting system.

Due to the location of the installation, there was a possibility that one of the light fixtures could cause direct light to enter the eyes of people coming up the escalator, so we proposed adding an optional looper to diffuse the light.

■ The Narita International Airport website can be found by
following the link below.

https://www.narita-airport.jp/