Title:
CEILING-BUILT-IN LIGHTING FIXTURE WITH INFRARED SENSOR
Document Type and Number:
Japanese Patent JP2003141926
Kind Code:
A
Abstract:
To effectively insulate an infrared sensor from heat or infrared rays radiated by an electric bulb of a built-in-in-the-ceiling lighting fixture with infrared sensor.
A sensor and its circuit part are arranged both outside an opening of the ceiling and on the underside of the ceiling in a circular shape with the center almost identical with that of the ceiling opening.
Inventors:
HIROTOMI KAZUTAKA
YUTANI YUKIO
YUTANI YUKIO
Application Number:
JP2001342270A
Publication Date:
May 16, 2003
Filing Date:
November 07, 2001
Export Citation:
Assignee:
NIPPON CERAMIC KK
International Classes:
G01V8/12; F21S8/02; F21V23/04; F21Y101/00; (IPC1-7): F21V23/04; F21S8/02; G01V8/12