Title:
照明装置および照明装置の制御方法
Document Type and Number:
Japanese Patent JP5763114
Kind Code:
B2
Abstract:
In a luminaire, a diffusing unit diffuses the light, which has been emitted from a light source unit, according to light transmissibility. A position information obtaining unit obtains position information which at least indicates the position of a person. A luminance obtaining unit obtains the luminance of a luminous part at the position specified in the position information. A calculating unit calculates, according to the light transmissibility and the luminance of the luminous part, a luminance uniformity ratio which indicates the uniformity in the luminance distribution in the luminous part at the position specified in the position information. According to the luminance and the luminance uniformity ratio, a control unit varies the light transmissibility and varies the light output of the light source unit.
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Inventors:
Shoga Koga
Toyoho
Tomoko Ishiwatari
Toyoho
Tomoko Ishiwatari
Application Number:
JP2013048385A
Publication Date:
August 12, 2015
Filing Date:
March 11, 2013
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H05B37/02; F21V9/40; H05B44/00
Domestic Patent References:
| JP6068708A | ||||
| JP2006278309A | ||||
| JP2004534282A | ||||
| JP2001281054A |
Attorney, Agent or Firm:
Hiroaki Sakai
Miyata Hideki
Miyata Hideki