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Title:
ILLUMINATION DEVICE WITH HEAT DISSIPATION MECHANISM, AND ILLUMINATION APPARATUS
Document Type and Number:
Japanese Patent JP2011233635
Kind Code:
A
Abstract:

To provide an illumination device that performs suitable light emission control over a plurality of LEDs while lowering the mounting cost, and dissipates heat of a light emitting element even when the light emitting element emits with high luminance.

An illumination device 1 comprises: a mounting substrate 2; a plurality of light emitting elements 3 mounted on the mounting substrate 2; a sealing frame 4 provided on the mounting substrate 2 and surrounding the plurality of light emitting elements 3; a sealing material 5 charged in the sealing frame 4 and sealing the light emitting elements 3 in contact with the light emitting elements 3; a heat diffusion portion 7 included in the mounting substrate 2 and diffusing the heat of the light emitting elements 3 from the mounting region of the plurality of light emitting elements 3 to a peripheral region; a heat transport portion 8 transporting the heat from the heat diffusion portion 7 in a predetermined direction; and a heat dissipation portion 9 emitting the heat transported by the heat transport portion 8 to the outside. The sealing material 5 is transparent or translucent, an upper surface thereof is in at least one of a concave shape and a convex shape, and the sealing material 5 performs at least one of diffusion and condensation of the light emitted by the light emitting elements 3.


Inventors:
FUJII SATOSHI
MIZUTA KEI
UEDA SUSUMU
FUKUNAGA NORIYASU
Application Number:
JP2010101131A
Publication Date:
November 17, 2011
Filing Date:
April 26, 2010
Export Citation:
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Assignee:
MOLEX JAPAN CO LTD
KOWADENKI CO LTD
UNIV KAGOSHIMA
International Classes:
H01L33/64; F21S2/00; F21V5/04; F21V29/00; H01L33/54; H01L33/58; F21Y101/02
Domestic Patent References:
JP2007194519A2007-08-02
JP2005340065A2005-12-08
JP2005311170A2005-11-04
Foreign References:
WO2009000105A12008-12-31
Attorney, Agent or Firm:
溝口 督生