Canon Kabushiki Kaisha

Toshiba Lighting & Technology Corporation

Masahiro Fujita

Takayuki Tsuboi

Seiko Kawashima

Takahito Kashiwagi

Yoshiko Takahashi

According to one embodiment, a light-emitting circuit including a substrate, a plurality of light-emitting portions, and a luminous intensity distribution control member is provided. A plurality of the light-emitting portions are arranged apart from each other on the substrate. A plurality of the light-emitting portions each have a plurality of light-emitting elements and a color mixing unit. A plurality of the light-emitting elements radiate light. The color mixing unit combines the lights sealing a plurality of the light-emitting elements and radiated from a plurality of the light-emitting elements. The luminous intensity distribution control member includes a plurality of lenses provided corresponding to a plurality of the light-emitting portions, respectively, provided so that respective lights radiated from a plurality of the light-emitting portions enter a plurality of the lenses respectively, and configured to control the luminous intensity distribution of the light-emitting portions.

Light-emitting circuit and luminaire

An apparatus comprising a solar battery, or a device adapted to be used with the apparatus, includes a first arrangement for driving the apparatus into a redetermined state so as to prevent the apparatus from being adversely affected by heat from illumination light impinging on the solar battery, and a second arrangement for driving the apparatus into a state different from the predetermined state by using a driving force of the first arrangement.

Growing community of inventors

Kanagawa-ken, Japan

Masahiro Fujita