Title:
ILLUMINATION TOOL AND LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2017188192
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve weight reduction of an illumination tool with a simple structure at low costs.SOLUTION: An illumination tool 1000 includes: a cylindrical first housing (an external housing 2) in which at least a part thereof forms an outer shell part (a housing outer peripheral surface part 210); and a second housing (an internal housing 4) which is disposed in the first housing (the external housing 2). The second housing (the internal housing 4) has: a light source attachment part 40 in which a light source part 5 is disposed; and an erection part 45 erected from a periphery part 402 of the light source attachment part 40. The light source attachment part 40 and the erection part 45 are formed by plate materials having specific gravity larger than that of the first housing (the external housing 2). A height dimension L13 of the erection part 45 is larger than or equal to a thickness of a light source arrangement part 400 and is smaller than or equal to one-half of a height dimension L3 of the outer shell part (the housing outer peripheral surface part 210).SELECTED DRAWING: Figure 2
Inventors:
GOTO NAOKI
SATO NORIFUMI
HUANG CHUN-MIN
JIANG CHANGHONG
SO SHIYUNKETSU
LIN KUNYUE
SATO NORIFUMI
HUANG CHUN-MIN
JIANG CHANGHONG
SO SHIYUNKETSU
LIN KUNYUE
Application Number:
JP2016073916A
Publication Date:
October 12, 2017
Filing Date:
April 01, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
TAIDA ELECTRONIC IND CO LTD
TAIDA ELECTRONIC IND CO LTD
International Classes:
F21K9/237; F21V29/503; F21V29/507
Attorney, Agent or Firm:
Shoji Mizoi