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Patent Searching and Data


Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/142624
Kind Code:
A1
Abstract:
According to the present invention, a lighting unit (2A) is provided with a first light emitting element (4) disposed along a first surface (3a) of a base (3). A first light guide (6) has a first edge (6a) that receives light emitted from the first light emitting element (4), and a first light reflection surface (6b) that emits light. A second light guide (7) has a second edge (7a) that is adjacent to a second surface (3b) of the base (3), and a second light reflection surface (7b) that emits light. A fin assembly (8) has a plurality of heat sink fins (8a) that are adjacent to a third surface (3c) of the base (3). A direction that is parallel to the shortest distance (L1) between the first edge (6a) of the first light guide (6) and the second edge (7a) of the second light guide (7) is defined as a first direction. A dimension (L2) of the fin assembly (8) in the first direction is larger than the shortest distance (L1).

Inventors:
MATSUBARA DAISUKE (JP)
MURAI TAKUO (JP)
FUSHIE RYO (JP)
Application Number:
PCT/JP2017/004264
Publication Date:
August 09, 2018
Filing Date:
February 06, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC LIGHTING CORP (JP)
International Classes:
F21S2/00; F21V8/00; F21V29/51; F21V29/71; F21V29/76; F21Y103/10; F21Y115/10
Foreign References:
JP3133878A
JP2016194992A2016-11-17
JP2012089290A2012-05-10
JP2016201210A2016-12-01
JP2011070808A2011-04-07
JP2006227072A2006-08-31
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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