Patent ID: 8550661
Filing Date: 2013-10-08
Classification: F21S,F21V,F21Y

Abstract:
1. A ceiling-hung lighting apparatus in which a central part side of the lighting apparatus is arranged to project downwards to form a dome shape, comprising: light emitting units of a plurality of rings including at least the light emitting units of a first ring having a vacant center arranged such that a plurality of planar frames each having mounted thereon a plane light emitter are connected mutually and annularly by connecting adjacent frames of the plurality of planar frames, and the light emitting units of a second ring arranged such that a plurality of planar frames each having mounted thereon a plane light emitter are connected mutually and annularly by connecting adjacent frames of the plurality of planar frames, each frame circumscribing a perimeter of a respective one of said frames which constitute the light emitting units of said first ring, wherein plane light emitters of the light emitting units of the first ring have a same size and planar frames of the light emitting units of the first ring have a same size, plane light emitters of the light emitting units of the second ring have a same size and planar frames of the light emitting units of the second ring have a same size, each plane light emitter of the light emitting units of the second ring larger than that of the first ring and each planar frame of the light emitting units of the second ring is larger than that of the first ring, the numbers of frames which constitute the light emitting units of respective rings are set as the same number for the light emitting units of the respective rings, and the planar frames of the light emitting units of the second ring are connected at a predetermined angle to the planar frames of the light emitting units of the first ring so as to form the dome shape projecting toward a plane light emitter side.