Panasonic Intellectual Property Management Co., Ltd.

Youji Tachino

Nobuyuki Matsui

Katsushi Seki

Makoto Yamada

Hiroshi Kido

Takashi Ohta

Junichi Hasegawa

Tadashi Murakami

Yoko Matsubayashi

Atsushi Motoya

Satoshi Fukano

Toshio Mori

Yukiya Kanazawa

Shigeo Gotoh

Ryusuke Kotera

Akihiro Hirano

Kazuki Harada

Nozomu Hashimoto

Tadasi Nisimura

Koji Noro

A lighting apparatus includes first light emitting elements and second light emitting elements, and a control circuit. The first light emitting elements the second light emitting elements are dispersedly disposed in a predetermined region. The first light emitting elements are more densely disposed in a periphery portion than in a center portion of the predetermined region. The second light emitting elements are more densely disposed in the center portion than in the periphery portion of the predetermined region.

Lighting apparatus

A lighting apparatus includes: first light emitting elements; second light emitting elements having chromaticity values in a same chromaticity range as the first light emitting elements; and a control circuit including a mode switch for controlling the first light emitting elements and the second light emitting elements separately. The control circuit selectively executes a first mode which causes the first light emitting elements to emit light and a second mode which causes the first light emitting elements and the second light emitting elements to emit light. The mode switch switches between the first mode and the second mode.

The control device individually controls operations of the two or more lighting devices. Each lighting device includes a light source, a sensor for measuring light intensity of the light source, and a controller circuit for controlling the light source. The control device includes a replacement detector circuit, and the replacement detector circuit determines whether any of the lighting devices has been replaced, and obtains a determination result distinguishing a replacement lighting device from remaining lighting device(s). When the replacement detector circuit has obtained the determination result, the control device controls at least one of the lighting devices based on the measurement value outputted from the sensor of the replacement lighting device and the measurement value(s) outputted from the sensor(s) of the remaining lighting device(s), so that a difference between light intensity of the replacement lighting device and light intensity derived from the remaining lighting device(s) falls within a predetermined range.

Control device, lighting system, mobile object

A holder included in a plurality of holders which fix, to a base, a light-emitting module to be placed on the base, by being attached to the base, includes: a contact terminal to be electrically connected to the light-emitting module; and a holding component which holds the light-emitting module in a cantilever-style when the holder is unattached to the base.

Holder of light-emitting module, and lighting apparatus

An illumination device includes a first light source and a second light source, a sensor, and a controller. The controller repeats a plurality of operation cycles, one operation cycle being a set of a first period in which only a detection target light source is caused to emit light and a second period in which the first light source and the second light source are caused to emit light. The sensor outputs detection values of detected light amounts in the first period. The controller controls the light source such that light amount of the light source fall in a target range, based on a detection result that corresponds to a value corresponding to the detection values of the light amount detected a predetermined number of times.

Illumination device and illumination system and mobile body including the same

An LED unit which serves as an illumination light source includes: a light-emitting element; a circuit board provided in a drive circuit which drives the light-emitting element; a lead wire electrically connecting the light-emitting element and the drive circuit; and a case including a first opening which is an elongated opening into which the lead wire is inserted. The circuit board includes a second opening which is an elongated opening into which the lead wire is inserted, and the first opening and the second opening are disposed so that a straight line extending in a lengthwise direction of the first opening and a straight line extending in a lengthwise direction of the second opening three-dimensionally cross each other.

Illumination light source and lighting apparatus

An LED unit which serves as an illumination light source includes: a mounting board on which a light-emitting element, which emits light frontward, is provided; a support disposed behind the mounting board; and a case disposed so that the mounting board is sandwiched in a longitudinal direction by the case and the support. The case includes a restricting portion which restricts sideward movement of the mounting board.

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.

A lighting device pertaining to one aspect of the present invention includes a mount, a light-emitting module, and a substrate holder. The light-emitting module is mounted on a main surface of the mount, and the substrate holder covers a portion of the light-emitting module and is connected with the mount. The light-emitting module includes a substrate, a plurality of light-emitting elements, a sealant and a padding. The padding is provided on a first main surface of the substrate. The light-emitting module is mounted on the main surface of the mount such that a second main surface of the substrate comes into contact with the main surface of the mount, and the light-emitting module is fixed to the mount by pressure applied from the substrate holder via the padding brought into contact with the substrate holder. The padding is made of a same material as the sealant.

Growing community of inventors

Nara, Japan

Youji Tachino