LUMINAIRE

According to one embodiment, a luminaire is provided which can enhance the feeling of brightness of a space and can reduce glare. The luminaire includes an equipment mounted on a ceiling surface. The equipment includes a light source and a light control unit. When an amount of light emitted outside...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IWATA FUMIE, KAWAGOE MAKOTO, KAWATSURU SHIGEHISA, NOGUCHI YOKO, ISHIWATA TOMOKO, YASHIRO KAZUNORI, INOUE MASARU, KAWANO HITOSHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:According to one embodiment, a luminaire is provided which can enhance the feeling of brightness of a space and can reduce glare. The luminaire includes an equipment mounted on a ceiling surface. The equipment includes a light source and a light control unit. When an amount of light emitted outside from the equipment is an equipment luminous flux, and a direction right under the equipment has a luminous intensity distribution angle of 0°, the light control unit controls to cause a luminous flux falling within a range of a luminous intensity distribution angle of 90° to 120° to be 20% or more of the equipment luminous flux and to cause a luminous flux falling within a range of a luminous intensity distribution angle of 60° to 90° to be 20% or less of the equipment luminous flux.