The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Oct. 25, 2012
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Takayuki Ono, Kanagawa, JP;
Tomoko Ishiwata, Kanagawa, JP;
Yoko Noguchi, Kanagawa, JP;
Makoto Kawagoe, Kanagawa, JP;
Kenji Takahashi, Kanagawa, JP;
Hidenori Nishigaki, Kanagawa, JP;
Junko Takahashi, Kanagawa, JP;
Shigehisa Kawatsuru, Kanagawa, JP;
Hitoshi Kawano, Kanagawa, JP;
Fumie Iwata, Kanagawa, JP;
Katsusuke Uchino, Kanagawa, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Abstract
Plural luminaires are installed in a lighting space surrounded by a wall part. A sensor equipment detects existence or nonexistence of a person in the lighting space. If existence of a person in the lighting space is detected, the sensor equipment detects a direction of the person. The sensor equipment detects a distance between the wall part positioned in front of the direction of the person and the person. A lighting control unit selectively switches between a first control for performing lighting control of the luminaires to illuminate the wall part positioned in front of the direction of the person if the detected distance is a specified distance or less, and a second control for performing lighting control of the luminaires to reduce brightness at a place as the place becomes farther from a position of the person if the detected distance is larger than the specified distance.