Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Tadasi Nisimura

Nobuyuki Matsui

Hiroshi Kido

Takashi Ohta

Junichi Hasegawa

Tadashi Murakami

Atsushi Motoya

Shigeo Gotoh

Youji Tachino

Hideharu Kawachi

Masanao Okawa

Shin Ukegawa

Yoshinori Tsuzuki

Hiroyuki Hirose

A lighting system includes a lighting apparatus provided along one side of an aisle and a specular reflection plate provided along the other side of the aisle to reflect the light emitted from the lighting apparatus toward a region where the lighting apparatus is provided. According to the above configuration, the lighting apparatus can illuminate the region where the lighting apparatus is provided. Therefore, it is possible to effectively illuminate a cabin of an aircraft with less lighting apparatuses as compared to conventional lighting apparatuses which are provided along both sides of the aisle. Moreover, since the number of the lighting apparatuses can be reduced, it is possible to improve fuel efficiency of the aircraft by reducing the total weight of the aircraft.

Lighting system

This lighting apparatus includes three or more LEDs arranged in a row. Each of the LEDs emits light of a color different from that of an LED adjacent to itself, and the LEDs include an LED having a relatively wide light distribution angle and others of the three or more LEDs each having a relatively narrow light distribution angle. The one LED is arranged in an inner portion in the row of the other LEDs. In this configuration, light emitted from the one LED is mixed well with lights emitted from the respective other LEDs adjacent to the one LED, and thus, color unevenness of illuminating light can be reduced.

Lighting apparatus

A display deviceincludes light emitting sectionsof different luminous colors disposed between anode and cathode electrodes, current control unitsfor controlling currents supplied to the light emitting sectionsto desired current levels, respectively, and an emergency power supply for supplying a current to the current control unitsin an emergency in which a commercial power source does not perform a desired function. When operated by the emergency power supply, the current control units turn on and off the light emitting sectionsof different luminous colors such that they are turned on during different periods of time. When the emergency power supply is used, the display devicecontrols turning on of the planar light emitting element using an organic EL light emitting element depending on luminous colors thereof, thereby suppressing the power consumption of the emergency power supply.

Display device and guide lamp including same

Growing community of inventors

Kyoto, Japan

Tadasi Nisimura