Title:
LIGHT EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2015103311
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cheap light emitting device in which the degree of freedom in the mounting number and arrangement of light emitting units is high, which can easily achieve the change in a light flux class or surface light intensity distribution in the same device size, which excels in heat radiation properties, which can achieve proper device weight even when the light flux class is changed, and which excels in assemblability.SOLUTION: A light emitting device 1 includes: an annular first frame body 3; an annular second frame body 4; and a light emitting unit 2 having a radiator 22 for radiating heat generated by a light emitting element to ambient air, a first fixing part 26 fixed at the first frame body 3 and a second fixing part 27 fixed at the second frame body 4. The center of the first frame body 3 and the center of the second frame body 4 are arranged to be at different positions on a straight line, and a plurality of light emitting units 2 are arranged at different positions in a circumferential direction of the first frame body 3 and the second frame body 4.
Inventors:
MATSUBARA DAISUKE
MURAI TAKUO
YOSHIZAWA ASUMI
MURAI TAKUO
YOSHIZAWA ASUMI
Application Number:
JP2013241170A
Publication Date:
June 04, 2015
Filing Date:
November 21, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC CORP
International Classes:
F21S8/02; H01L33/00; H01L33/64
Domestic Patent References:
| JP2010009996A | 2010-01-14 | |||
| JPS49106183A | 1974-10-08 | |||
| JPS6416810U | 1989-01-27 |
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Yasuo Koizumi
Hideki Takahashi
Yasuo Koizumi
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