Kabushiki Kaisha Toshiba

Toshiba Lighting & Technology Corporation

Kumiko Ioka

Kazuki Tateyama

Michinobu Inoue

Makoto Sakai

Izuru Komatsu

Daigo Suzuki

Hideo Nishiuchi

Takumi Suwa

Shinji Nakata

Yasuhide Okada

Koki Moriya

A lighting apparatus includes a case, a power source unit, and a light emitting unit. The case has a side portion provided around a first axis parallel to a direction from the power source unit toward the light emitting unit. The side portion has a first portion and a second portion disposed around a central axis parallel to the first axis. The first portion has a long distance to the central axis. The second portion has a short distance to the central axis. An end portion of an inner surface of the second portion is configured to have at least one selected from a portion perpendicular to the central axis and a portion has a recessed configuration with respect to the central axis when the inner surface is cut by a cross-section perpendicular to the central axis.

Lighting apparatus

A luminaire according to embodiments includes a body portion, a light source provided at one end portion of the body portion and having a light-emitting element, a globe provided so as to cover the light source, and a thermal transfer portion thermally joined to at least either one of the globe or a thermal radiating surface of the body portion on the end portion side. Then, an end surface of the thermal transfer portion on the side of the globe is exposed from the globe.

Luminaire

Growing community of inventors

Chiba-ken, Japan

Kumiko Ioka