发明申请
- 专利标题: LUMINAIRE
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申请号: US13530551申请日: 2012-06-22
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公开(公告)号: US20130250554A1公开(公告)日: 2013-09-26
- 发明人: Yoko NOGUCHI , Tomoko Ishiwata , Kazunori Yashiro , Masaru Inoue , Makoto Kawagoe , Fumie Iwata , Hitoshi Kawano , Shigehisa Kawatsuru
- 申请人: Yoko NOGUCHI , Tomoko Ishiwata , Kazunori Yashiro , Masaru Inoue , Makoto Kawagoe , Fumie Iwata , Hitoshi Kawano , Shigehisa Kawatsuru
- 申请人地址: JP Kanagawa-ken
- 专利权人: Toshiba Lighting & Technology Corporation
- 当前专利权人: Toshiba Lighting & Technology Corporation
- 当前专利权人地址: JP Kanagawa-ken
- 优先权: JP2012-070446 20120326
- 主分类号: F21S8/00
- IPC分类号: F21S8/00 ; F21V13/10
摘要:
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.
公开/授权文献
- US08746919B2 Luminaire controlling a luminous intensity distribution 公开/授权日:2014-06-10
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